Populate seed code

Add seed code for sli/core repository

Issue: CCSDK-6
Change-Id: Iaeb54c6135a94a6ffec0c7fd96505d72d18aeb00
Signed-off-by: Dan Timoney <dtimoney@att.com>

29 files changed, 4140 insertions, 0 deletions

diff --git a/dblib/provider/pom.xml b/dblib/provider/pom.xml
new file mode 100755
index 00000000..b5acc7e1
--- /dev/null
+++ b/dblib/provider/pom.xml
@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.openecomp.sdnc.core</groupId>
+		<artifactId>dblib</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+	<artifactId>dblib-provider</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>bundle</packaging>
+	<name>DBLIB Adaptor - Provider</name>
+	<url>http://maven.apache.org</url>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.11</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>equinoxSDK381</groupId>
+			<artifactId>org.eclipse.osgi</artifactId>
+			<version>${equinox.osgi.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>${slf4j.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jcl-over-slf4j</artifactId>
+			<version>${slf4j.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-simple</artifactId>
+			<version>${slf4j.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>mysql</groupId>
+			<artifactId>mysql-connector-java</artifactId>
+			<version>${mysql.connector.version}</version>
+		</dependency>
+		<dependency>
+		    <groupId>org.apache.tomcat</groupId>
+		    <artifactId>tomcat-jdbc</artifactId>
+		    <version>${tomcat-jdbc.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.felix</groupId>
+				<artifactId>maven-bundle-plugin</artifactId>
+				<version>${bundle.plugin.version}</version>
+				<extensions>true</extensions>
+				<configuration>
+					<instructions>
+						<Bundle-SymbolicName>org.openecomp.sdnc.sli.resource.dblib</Bundle-SymbolicName>
+						<Bundle-Activator>org.openecomp.sdnc.sli.resource.dblib.DBLIBResourceActivator</Bundle-Activator>
+						<Export-Package>org.openecomp.sdnc.sli.resource.dblib;version=${project.version}</Export-Package>
+						<!--
+						<Import-Package>org.openecomp.sdnc.sli.*,org.osgi.framework.*,org.slf4j.*,com.mysql.jdbc.*,javax.sql.*,org.apache.tomcat.*</Import-Package>
+						-->
+						<Import-Package>*</Import-Package>
+						<Embed-Transitive>true</Embed-Transitive>
+					</instructions>
+				</configuration>
+
+			</plugin>
+
+
+		</plugins>
+	</build>
+</project>
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSource.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSource.java
new file mode 100644
index 00000000..58a0aeb1
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSource.java
@@ -0,0 +1,616 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.sql.Blob;
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.Timestamp;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Observer;
+
+import javax.sql.DataSource;
+import javax.sql.rowset.CachedRowSet;
+import javax.sql.rowset.RowSetProvider;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.tomcat.jdbc.pool.PoolExhaustedException;
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.pm.SQLExecutionMonitor;
+import org.openecomp.sdnc.sli.resource.dblib.pm.SQLExecutionMonitorObserver;
+import org.openecomp.sdnc.sli.resource.dblib.pm.SQLExecutionMonitor.TestObject;
+import com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException;
+
+
+/**
+ * @version $Revision: 1.13 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+
+public abstract class CachedDataSource implements DataSource, SQLExecutionMonitorObserver
+{
+	private static Logger LOGGER = LoggerFactory.getLogger(CachedDataSource.class);
+
+	protected static final String AS_CONF_ERROR = "AS_CONF_ERROR: ";
+
+	protected long CONN_REQ_TIMEOUT = 30L;
+	protected long DATA_REQ_TIMEOUT = 100L;
+
+	private final SQLExecutionMonitor monitor;
+	protected DataSource ds = null;
+	protected String connectionName = null;
+	protected boolean initialized = false;
+
+	private long interval = 1000;
+	private long initialDelay = 5000;
+	private long expectedCompletionTime = 50L;
+	private boolean canTakeOffLine = true;
+	private long unprocessedFailoverThreshold = 3L;
+
+	private long nextErrorReportTime = 0L;
+
+	private String globalHostName = null;
+
+
+	public CachedDataSource(BaseDBConfiguration jdbcElem) throws DBConfigException
+	{
+		configure(jdbcElem);
+		monitor = new SQLExecutionMonitor(this);
+	}
+
+	protected abstract void configure(BaseDBConfiguration jdbcElem) throws DBConfigException;
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#getConnection()
+	 */
+	public Connection getConnection() throws SQLException
+	{
+		return ds.getConnection();
+	}
+
+	public CachedRowSet getData(String statement, ArrayList<Object> arguments) throws SQLException, Throwable
+	{
+		TestObject testObject = null;
+		testObject = monitor.registerRequest();
+
+		Connection connection = null;
+		try {
+			connection = this.getConnection();
+			if(connection ==  null ) {
+				throw new SQLException("Connection invalid");
+			}
+			if(LOGGER.isDebugEnabled())
+				LOGGER.debug("Obtained connection <" + connectionName + ">: "+connection.toString());
+			return executePreparedStatement(connection, statement, arguments, true);
+		} finally {
+			try {
+				if(connection != null && !connection.isClosed()) {
+					connection.close();
+				}
+			} catch(Throwable exc) {
+				// the exception not monitored
+			} finally {
+				connection = null;
+			}
+
+			monitor.deregisterReguest(testObject);
+		}
+	}
+
+	public boolean writeData(String statement, ArrayList<Object> arguments) throws SQLException, Throwable
+	{
+		TestObject testObject = null;
+		testObject = monitor.registerRequest();
+
+		Connection connection = null;
+		try {
+			connection = this.getConnection();
+			if(connection ==  null ) {
+				throw new SQLException("Connection invalid");
+			}
+			if(LOGGER.isDebugEnabled())
+				LOGGER.debug("Obtained connection <" + connectionName + ">: "+connection.toString());
+			return executeUpdatePreparedStatement(connection, statement, arguments, true);
+		} finally {
+			try {
+				if(connection != null && !connection.isClosed()) {
+					connection.close();
+				}
+			} catch(Throwable exc) {
+				// the exception not monitored
+			} finally {
+				connection = null;
+			}
+
+			monitor.deregisterReguest(testObject);
+		}
+	}
+
+	CachedRowSet executePreparedStatement(Connection conn, String statement, ArrayList<Object> arguments, boolean close) throws SQLException, Throwable
+	{
+		long time = System.currentTimeMillis();
+
+		CachedRowSet data = null;
+		if(LOGGER.isDebugEnabled()){
+			LOGGER.debug("SQL Statement: "+ statement);
+			if(arguments != null && !arguments.isEmpty()) {
+				LOGGER.debug("Argunments: "+ Arrays.toString(arguments.toArray()));
+			}
+		}
+
+		ResultSet rs = null;
+		try {
+			data = RowSetProvider.newFactory().createCachedRowSet();
+			PreparedStatement ps = conn.prepareStatement(statement);
+			if(arguments != null)
+			{
+				for(int i = 0, max = arguments.size(); i < max; i++){
+					ps.setObject(i+1, arguments.get(i));
+				}
+			}
+			rs = ps.executeQuery();
+			data.populate(rs);
+		    // Point the rowset Cursor to the start
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL SUCCESS. rows returned: " + data.size()+ ", time(ms): "+ (System.currentTimeMillis() - time));			}
+		} catch(SQLException exc){
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL FAILURE. time(ms): "+ (System.currentTimeMillis() - time));
+			}
+			try {	conn.rollback(); } catch(Throwable thr){}
+			if(arguments != null && !arguments.isEmpty()) {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with arguments: "+arguments.toString(), exc);
+			} else {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with no arguments. ", exc);
+			}
+			throw exc;
+		} catch(Throwable exc){
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL FAILURE. time(ms): "+ (System.currentTimeMillis() - time));
+			}
+			if(arguments != null && !arguments.isEmpty()) {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with arguments: "+arguments.toString(), exc);
+			} else {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with no arguments. ", exc);
+			}
+			throw exc; // new SQLException(exc);
+		} finally {
+
+			try {
+				if(rs != null){
+					rs.close();
+					rs = null;
+				}
+			} catch(Exception exc){
+
+			}
+			try {
+				if(conn != null && close){
+					conn.close();
+					conn = null;
+				}
+			} catch(Exception exc){
+
+			}
+		}
+
+		return data;
+	}
+
+	boolean executeUpdatePreparedStatement(Connection conn, String statement, ArrayList<Object> arguments, boolean close) throws SQLException, Throwable {
+		long time = System.currentTimeMillis();
+
+		CachedRowSet data = null;
+
+		int rs = -1;
+		try {
+			data = RowSetProvider.newFactory().createCachedRowSet();
+			PreparedStatement ps = conn.prepareStatement(statement);
+			if(arguments != null)
+			{
+				for(int i = 0, max = arguments.size(); i < max; i++){
+					if(arguments.get(i) instanceof Blob) {
+						ps.setBlob(i+1, (Blob)arguments.get(i));
+					} else	if(arguments.get(i) instanceof Timestamp) {
+						ps.setTimestamp(i+1, (Timestamp)arguments.get(i));
+					} else	if(arguments.get(i) instanceof Integer) {
+						ps.setInt(i+1, (Integer)arguments.get(i));
+					} else	if(arguments.get(i) instanceof Long) {
+						ps.setLong(i+1, (Long)arguments.get(i));
+					} else	if(arguments.get(i) instanceof Date) {
+						ps.setDate(i+1, (Date)arguments.get(i));
+					} else {
+					ps.setObject(i+1, arguments.get(i));
+				}
+			}
+			}
+			rs = ps.executeUpdate();
+		    // Point the rowset Cursor to the start
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL SUCCESS. rows returned: " + data.size()+ ", time(ms): "+ (System.currentTimeMillis() - time));
+			}
+		} catch(SQLException exc){
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL FAILURE. time(ms): "+ (System.currentTimeMillis() - time));
+			}
+			try {	conn.rollback(); } catch(Throwable thr){}
+			if(arguments != null && !arguments.isEmpty()) {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with arguments: "+arguments.toString(), exc);
+			} else {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with no arguments. ", exc);
+			}
+			throw exc;
+		} catch(Throwable exc){
+			if(LOGGER.isDebugEnabled()){
+				LOGGER.debug("SQL FAILURE. time(ms): "+ (System.currentTimeMillis() - time));
+			}
+			if(arguments != null && !arguments.isEmpty()) {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with arguments: "+arguments.toString(), exc);
+			} else {
+				LOGGER.error("<"+connectionName+"> Failed to execute: "+ statement + " with no arguments. ", exc);
+			}
+			throw exc; // new SQLException(exc);
+		} finally {
+			try {
+				if(conn != null && close){
+					conn.close();
+					conn = null;
+				}
+			} catch(Exception exc){
+
+			}
+		}
+
+		return true;
+	}
+
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#getConnection(java.lang.String, java.lang.String)
+	 */
+	public Connection getConnection(String username, String password)
+			throws SQLException
+	{
+		return ds.getConnection(username, password);
+	}
+
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#getLogWriter()
+	 */
+	public PrintWriter getLogWriter() throws SQLException
+	{
+		return ds.getLogWriter();
+	}
+
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#getLoginTimeout()
+	 */
+	public int getLoginTimeout() throws SQLException
+	{
+		return ds.getLoginTimeout();
+	}
+
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#setLogWriter(java.io.PrintWriter)
+	 */
+	public void setLogWriter(PrintWriter out) throws SQLException
+	{
+		ds.setLogWriter(out);
+	}
+
+	/* (non-Javadoc)
+	 * @see javax.sql.DataSource#setLoginTimeout(int)
+	 */
+	public void setLoginTimeout(int seconds) throws SQLException
+	{
+		ds.setLoginTimeout(seconds);
+	}
+
+
+	public final String getDbConnectionName(){
+		return connectionName;
+	}
+
+	protected final void setDbConnectionName(String name) {
+		this.connectionName = name;
+	}
+
+	public void cleanUp(){
+		if(ds != null && ds instanceof Closeable) {
+			try {
+				((Closeable)ds).close();
+			} catch (IOException e) {
+				LOGGER.warn(e.getMessage());
+			}
+		}
+		ds = null;
+		monitor.deleteObservers();
+		monitor.cleanup();
+	}
+
+	public boolean isInitialized() {
+		return initialized;
+	}
+
+	protected boolean testConnection(){
+		return testConnection(false);
+	}
+
+	protected boolean testConnection(boolean error_level){
+		Connection conn = null;
+		ResultSet rs = null;
+		Statement stmt = null;
+		try
+		{
+			Boolean readOnly = null;
+			String hostname = null;
+			conn = this.getConnection();
+			stmt = conn.createStatement();
+			rs = stmt.executeQuery("SELECT @@global.read_only, @@global.hostname");   //("SELECT 1 FROM DUAL"); //"select BANNER from SYS.V_$VERSION"
+			while(rs.next())
+			{
+				readOnly = rs.getBoolean(1);
+				hostname = rs.getString(2);
+
+					if(LOGGER.isDebugEnabled()){
+						LOGGER.debug("SQL DataSource <"+getDbConnectionName() + "> connected to " + hostname + ", read-only is " + readOnly + ", tested successfully ");
+					}
+			}
+
+		} catch (Throwable exc) {
+			if(error_level) {
+				LOGGER.error("SQL DataSource <" + this.getDbConnectionName() +	"> test failed. Cause : " + exc.getMessage());
+			} else {
+				LOGGER.info("SQL DataSource <" + this.getDbConnectionName() +	"> test failed. Cause : " + exc.getMessage());
+			}
+			return false;
+		} finally {
+			if(rs != null) {
+				try {
+					rs.close();
+					rs = null;
+				} catch (SQLException e) {
+				}
+			}
+			if(stmt != null) {
+				try {
+					stmt.close();
+					stmt = null;
+				} catch (SQLException e) {
+				}
+			}
+			if(conn !=null){
+				try {
+					conn.close();
+					conn = null;
+				} catch (SQLException e) {
+				}
+			}
+		}
+		return true;
+	}
+
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		return false;
+	}
+
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		return null;
+	}
+
+	@SuppressWarnings("deprecation")
+	public void setConnectionCachingEnabled(boolean state)
+	{
+//		if(ds != null && ds instanceof OracleDataSource)
+//			try {
+//				((OracleDataSource)ds).setConnectionCachingEnabled(true);
+//			} catch (SQLException exc) {
+//				LOGGER.warn("", exc);
+//			}
+	}
+
+	public void addObserver(Observer observer) {
+		monitor.addObserver(observer);
+	}
+
+	public void deleteObserver(Observer observer) {
+		monitor.deleteObserver(observer);
+	}
+
+	public long getInterval() {
+		return interval;
+	}
+
+	public long getInitialDelay() {
+		return initialDelay;
+	}
+
+	public void setInterval(long value) {
+		interval = value;
+	}
+
+	public void setInitialDelay(long value) {
+		initialDelay = value;
+	}
+
+	public long getExpectedCompletionTime() {
+		return expectedCompletionTime;
+	}
+
+	public void setExpectedCompletionTime(long value) {
+		expectedCompletionTime = value;
+	}
+
+	public long getUnprocessedFailoverThreshold() {
+		return unprocessedFailoverThreshold;
+	}
+
+	public void setUnprocessedFailoverThreshold(long value) {
+		this.unprocessedFailoverThreshold = value;
+	}
+
+	public boolean canTakeOffLine() {
+		return canTakeOffLine;
+	}
+
+	public void blockImmediateOffLine() {
+		canTakeOffLine = false;
+		final Thread offLineTimer = new Thread()
+		{
+			public void run(){
+				try {
+					Thread.sleep(30000L);
+				}catch(Throwable exc){
+
+				}finally{
+					canTakeOffLine = true;
+				}
+			}
+		};
+		offLineTimer.setDaemon(true);
+		offLineTimer.start();
+	}
+
+	/**
+	 * @return the monitor
+	 */
+	final SQLExecutionMonitor getMonitor() {
+		return monitor;
+	}
+
+	protected boolean isSlave() throws PoolExhaustedException, MySQLNonTransientConnectionException {
+		CachedRowSet rs = null;
+		boolean isSlave = true;
+		String hostname = "UNDETERMINED";
+		try {
+			boolean localSlave = true;
+			rs = this.getData("SELECT @@global.read_only, @@global.hostname", new ArrayList<Object>());
+			while(rs.next()) {
+				localSlave = rs.getBoolean(1);
+				hostname = rs.getString(2);
+			}
+			isSlave = localSlave;
+		} catch(PoolExhaustedException | MySQLNonTransientConnectionException peexc){
+			throw peexc;
+		} catch (SQLException e) {
+			LOGGER.error("", e);
+			isSlave = true;
+		} catch (Throwable e) {
+			LOGGER.error("", e);
+			isSlave = true;
+		}
+		if(isSlave){
+			LOGGER.debug("SQL SLAVE : "+connectionName + " on server " + hostname);
+		} else {
+			LOGGER.debug("SQL MASTER : "+connectionName + " on server " + hostname);
+		}
+		return isSlave;
+	}
+
+	public boolean isFabric() {
+		return false;
+	}
+
+	protected boolean lockTable(Connection conn, String tableName) {
+		boolean retValue = false;
+		Statement lock = null;
+		try {
+			if(tableName != null) {
+				if(LOGGER.isDebugEnabled()) {
+					LOGGER.debug("Executing 'LOCK TABLES " + tableName + " WRITE' on connection " + conn.toString());
+					if("SVC_LOGIC".equals(tableName)) {
+						Exception e = new Exception();
+						StringWriter sw = new StringWriter();
+						PrintWriter pw = new PrintWriter(sw);
+						e.printStackTrace(pw);
+						LOGGER.debug(sw.toString());
+					}
+				}
+				lock = conn.createStatement();
+				lock.execute("LOCK TABLES " + tableName + " WRITE");
+				retValue = true;
+			}
+		} catch(Exception exc){
+			LOGGER.error("", exc);
+			retValue =  false;
+		} finally {
+			try {
+				 lock.close();
+			} catch(Exception exc) {
+
+			}
+		}
+		return retValue;
+	}
+
+	protected boolean unlockTable(Connection conn) {
+		boolean retValue = false;
+		Statement lock = null;
+		try {
+			if(LOGGER.isDebugEnabled()) {
+				LOGGER.debug("Executing 'UNLOCK TABLES' on connection " + conn.toString());
+			}
+			lock = conn.createStatement();
+			retValue = lock.execute("UNLOCK TABLES");
+		} catch(Exception exc){
+			LOGGER.error("", exc);
+			retValue =  false;
+		} finally {
+			try {
+				 lock.close();
+			} catch(Exception exc) {
+
+			}
+		}
+		return retValue;
+	}
+
+	public void getPoolInfo(boolean allocation) {
+
+	}
+
+	public long getNextErrorReportTime() {
+		return nextErrorReportTime;
+	}
+
+	public void setNextErrorReportTime(long nextTime) {
+		this.nextErrorReportTime = nextTime;
+	}
+
+	public void setGlobalHostName(String hostname) {
+		this.globalHostName  = hostname;
+	}
+
+	public String getGlobalHostName() {
+		return globalHostName;
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSourceFactory.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSourceFactory.java
new file mode 100644
index 00000000..3e51ed94
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/CachedDataSourceFactory.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.jdbc.JdbcDBCachedDataSource;
+import org.openecomp.sdnc.sli.resource.dblib.jdbc.MySQLCachedDataSource;
+
+/**
+ * @version $Revision: 1.1 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public class CachedDataSourceFactory {
+
+	public static CachedDataSource createDataSource(BaseDBConfiguration config) {
+		if(config instanceof JDBCConfiguration)
+			return JdbcDBCachedDataSource.createInstance(config);
+
+		return (CachedDataSource)null;
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBConfigException.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBConfigException.java
new file mode 100644
index 00000000..b324e6a2
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBConfigException.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+
+/**
+ * @version $Revision: 1.1 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public class DBConfigException extends RuntimeException
+{
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 4752405152537680257L;
+
+	public DBConfigException(Exception e)
+	{
+		super(e.toString());
+	}
+
+	public DBConfigException(String msg)
+	{
+		super(msg);
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLIBResourceActivator.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLIBResourceActivator.java
new file mode 100644
index 00000000..150a9a82
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLIBResourceActivator.java
@@ -0,0 +1,130 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.io.File;
+import java.net.URL;
+import java.util.Properties;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.framework.ServiceRegistration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DBLIBResourceActivator implements BundleActivator {
+
+	private static final String SDNC_CONFIG_DIR = "SDNC_CONFIG_DIR";
+
+	private static final String DBLIB_PROP_PATH = "/dblib.properties";
+
+	private ServiceRegistration registration = null;
+
+	private static final Logger LOG = LoggerFactory.getLogger(DBLIBResourceActivator.class);
+
+	@Override
+	public void start(BundleContext ctx) throws Exception {
+		LOG.info("entering DBLIBResourceActivator.start");
+		
+		DbLibService jdbcDataSource = null;
+		// Read properties
+		Properties props = new Properties();
+		
+		File file =  null;
+		URL propURL = null;
+		String propDir = System.getenv(SDNC_CONFIG_DIR);
+		if ((propDir == null) || (propDir.length() == 0)) {
+			propDir = "/opt/sdnc/data/properties";
+		}
+		file = new File(propDir + DBLIB_PROP_PATH);
+		if(file.exists()) {
+			propURL = file.toURI().toURL();
+			LOG.info("Using property file (1): " + file.toString());
+		} else {
+			propURL = ctx.getBundle().getResource("dblib.properties");
+			URL tmp = null;
+			if (propURL == null) {
+				file = new File(DBLIB_PROP_PATH);
+				tmp = this.getClass().getResource(DBLIB_PROP_PATH);
+//				if(!file.exists()) {
+				if(tmp == null) {
+					throw new DblibConfigurationException("Missing configuration properties resource(3) : " + DBLIB_PROP_PATH);
+				} else {
+					propURL = tmp; //file.toURI().toURL();
+					LOG.info("Using property file (4): " + file.toString());
+				}
+			} else {
+				LOG.info("Using property file (2): " + propURL.toString());
+			}
+		}
+
+		
+		try {
+			props.load(propURL.openStream());
+		} catch (Exception e) {
+			throw new DblibConfigurationException("Could not load properties at URL " + propURL.toString(), e);
+
+		}
+
+
+
+		try {
+			jdbcDataSource = DBResourceManager.create(props);
+		} catch (Exception exc) {
+			throw new DblibConfigurationException("Could not get initialize database", exc);
+		}
+
+		String regName = jdbcDataSource.getClass().getName();
+
+		LOG.info("Registering DBResourceManager service "+regName);
+		registration = ctx.registerService(new String[] { regName, DbLibService.class.getName(), "javax.sql.DataSource" }, jdbcDataSource, null);
+	}
+
+	@Override
+	public void stop(BundleContext ctx) throws Exception {
+		LOG.info("entering DBLIBResourceActivator.stop");
+		if (registration != null)
+		{
+			try {
+				ServiceReference sref = ctx.getServiceReference(DbLibService.class.getName());
+
+				if (sref == null) {
+					LOG.warn("Could not find service reference for DBLIB service ("	+ DbLibService.class.getName() + ")");
+				} else {
+					DBResourceManager dblibSvc = (DBResourceManager) ctx.getService(sref);
+					if (dblibSvc == null) {
+						LOG.warn("Could not find service reference for DBLIB service ("	+ DbLibService.class.getName() + ")");
+					} else {
+						dblibSvc.cleanUp();
+					}
+				}
+			} catch(Throwable exc) {
+				LOG.warn("Cleanup", exc);
+			}
+
+			registration.unregister();
+			registration = null;
+			LOG.debug("Deregistering DBResourceManager service");
+		}
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibConnection.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibConnection.java
new file mode 100644
index 00000000..5c1f5104
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibConnection.java
@@ -0,0 +1,390 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.NClob;
+import java.sql.PreparedStatement;
+import java.sql.SQLClientInfoException;
+import java.sql.SQLException;
+import java.sql.SQLWarning;
+import java.sql.SQLXML;
+import java.sql.Savepoint;
+import java.sql.Statement;
+import java.sql.Struct;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.Executor;
+
+import javax.sql.rowset.CachedRowSet;
+
+import org.apache.tomcat.jdbc.pool.PooledConnection;
+import org.apache.tomcat.jdbc.pool.ProxyConnection;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DBLibConnection implements Connection {
+
+	private static Logger LOGGER = LoggerFactory.getLogger(DBLibConnection.class);
+
+	private final Connection connection;
+	private final CachedDataSource dataSource;
+	private boolean locked = false;
+	private String tableName = null;
+
+	public DBLibConnection(Connection con, CachedDataSource dataSource){
+		this.connection = con;
+		this.dataSource = dataSource;
+		locked = false;
+		dataSource.getPoolInfo(true);
+	}
+
+	public boolean lockTable(String tablename) {
+		this.tableName = tablename;
+		return locked = dataSource.lockTable(connection, tableName);
+	}
+
+	public void resetInactivityTimer() {
+		Class<org.apache.tomcat.jdbc.pool.PooledConnection> iface = PooledConnection.class;
+		try {
+			PooledConnection pc = connection.unwrap(iface);
+			pc.setTimestamp(System.currentTimeMillis());
+		} catch (SQLException e) {
+			LOGGER.warn("Failed resetting timeout timer", e);
+		}
+	}
+
+	public boolean unlock() {
+		dataSource.unlockTable(connection);
+		return locked = false;
+	}
+
+	public boolean writeData(String statement, ArrayList<String> arguments) throws SQLException, Throwable
+	{
+		ArrayList<Object> newList=new ArrayList<Object>();
+		if(arguments != null && !arguments.isEmpty()) {
+			newList.addAll(arguments);
+		}
+		resetInactivityTimer();
+		return dataSource.executeUpdatePreparedStatement(connection, statement, newList, false);
+	}
+
+	public CachedRowSet getData(String statement, ArrayList<String> arguments) throws SQLException, Throwable
+	{
+		ArrayList<Object> newList=new ArrayList<Object>();
+		if(arguments != null && !arguments.isEmpty()) {
+			newList.addAll(arguments);
+		}
+		resetInactivityTimer();
+		return dataSource.executePreparedStatement(connection, statement, newList, false);
+	}
+
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		return connection.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		return connection.isWrapperFor(iface);
+	}
+
+	@Override
+	public Statement createStatement() throws SQLException {
+		return connection.createStatement();
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql) throws SQLException {
+		return connection.prepareStatement(sql);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql) throws SQLException {
+		return connection.prepareCall(sql);
+	}
+
+	@Override
+	public String nativeSQL(String sql) throws SQLException {
+		return connection.nativeSQL(sql);
+	}
+
+	@Override
+	public void setAutoCommit(boolean autoCommit) throws SQLException {
+		connection.setAutoCommit(autoCommit);
+	}
+
+	@Override
+	public boolean getAutoCommit() throws SQLException {
+		return connection.getAutoCommit();
+	}
+
+	@Override
+	public void commit() throws SQLException {
+		connection.commit();
+	}
+
+	@Override
+	public void rollback() throws SQLException {
+		connection.rollback();
+	}
+
+	@Override
+	public void close() throws SQLException {
+		if(this.locked) {
+			try {
+				this.unlock();
+			} catch(Throwable th) {
+				LOGGER.error("Failed unlocking",th);
+			}
+		}
+		if(connection != null && !connection.isClosed()) {
+			connection.close();
+		}
+		dataSource.getPoolInfo(false);
+	}
+
+	@Override
+	public boolean isClosed() throws SQLException {
+		return connection.isClosed();
+	}
+
+	@Override
+	public DatabaseMetaData getMetaData() throws SQLException {
+		return connection.getMetaData();
+	}
+
+	@Override
+	public void setReadOnly(boolean readOnly) throws SQLException {
+		connection.setReadOnly(readOnly);
+	}
+
+	@Override
+	public boolean isReadOnly() throws SQLException {
+		return connection.isReadOnly();
+	}
+
+	@Override
+	public void setCatalog(String catalog) throws SQLException {
+		connection.setCatalog(catalog);
+	}
+
+	@Override
+	public String getCatalog() throws SQLException {
+		return connection.getCatalog();
+	}
+
+	@Override
+	public void setTransactionIsolation(int level) throws SQLException {
+		connection.setTransactionIsolation(level);
+	}
+
+	@Override
+	public int getTransactionIsolation() throws SQLException {
+		return connection.getTransactionIsolation();
+	}
+
+	@Override
+	public SQLWarning getWarnings() throws SQLException {
+		return connection.getWarnings();
+	}
+
+	@Override
+	public void clearWarnings() throws SQLException {
+		connection.clearWarnings();
+	}
+
+	@Override
+	public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
+		return connection.createStatement(resultSetType, resultSetConcurrency);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
+			throws SQLException {
+		return connection.prepareStatement(sql, resultSetType, resultSetConcurrency);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
+		return connection.prepareCall(sql, resultSetType, resultSetConcurrency);
+	}
+
+	@Override
+	public Map<String, Class<?>> getTypeMap() throws SQLException {
+		return connection.getTypeMap();
+	}
+
+	@Override
+	public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
+		connection.setTypeMap(map);
+	}
+
+	@Override
+	public void setHoldability(int holdability) throws SQLException {
+		connection.setHoldability(holdability);
+	}
+
+	@Override
+	public int getHoldability() throws SQLException {
+		return connection.getHoldability();
+	}
+
+	@Override
+	public Savepoint setSavepoint() throws SQLException {
+		return connection.setSavepoint();
+	}
+
+	@Override
+	public Savepoint setSavepoint(String name) throws SQLException {
+		return connection.setSavepoint(name);
+	}
+
+	@Override
+	public void rollback(Savepoint savepoint) throws SQLException {
+		connection.rollback(savepoint);
+	}
+
+	@Override
+	public void releaseSavepoint(Savepoint savepoint) throws SQLException {
+		connection.releaseSavepoint(savepoint);
+	}
+
+	@Override
+	public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
+			throws SQLException {
+		return connection.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency,
+			int resultSetHoldability) throws SQLException {
+		return connection.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
+			int resultSetHoldability) throws SQLException {
+		return connection.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
+		return connection.prepareStatement(sql, autoGeneratedKeys);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
+		return connection.prepareStatement(sql, columnIndexes);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
+		return connection.prepareStatement(sql, columnNames);
+	}
+
+	@Override
+	public Clob createClob() throws SQLException {
+		return connection.createClob();
+	}
+
+	@Override
+	public Blob createBlob() throws SQLException {
+		return connection.createBlob();
+	}
+
+	@Override
+	public NClob createNClob() throws SQLException {
+		return connection.createNClob();
+	}
+
+	@Override
+	public SQLXML createSQLXML() throws SQLException {
+		return connection.createSQLXML();
+	}
+
+	@Override
+	public boolean isValid(int timeout) throws SQLException {
+		return connection.isValid(timeout);
+	}
+
+	@Override
+	public void setClientInfo(String name, String value) throws SQLClientInfoException {
+		connection.setClientInfo(name, value);
+	}
+
+	@Override
+	public void setClientInfo(Properties properties) throws SQLClientInfoException {
+		connection.setClientInfo(properties);
+	}
+
+	@Override
+	public String getClientInfo(String name) throws SQLException {
+		return connection.getClientInfo(name);
+	}
+
+	@Override
+	public Properties getClientInfo() throws SQLException {
+		return connection.getClientInfo();
+	}
+
+	@Override
+	public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
+		return connection.createArrayOf(typeName, elements);
+	}
+
+	@Override
+	public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
+		return connection.createStruct(typeName, attributes);
+	}
+
+	@Override
+	public void setSchema(String schema) throws SQLException {
+		connection.setSchema(schema);
+	}
+
+	@Override
+	public String getSchema() throws SQLException {
+		return connection.getSchema();
+	}
+
+	@Override
+	public void abort(Executor executor) throws SQLException {
+		connection.abort(executor);
+	}
+
+	@Override
+	public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
+		connection.setNetworkTimeout(executor, milliseconds);
+	}
+
+	@Override
+	public int getNetworkTimeout() throws SQLException {
+		return connection.getNetworkTimeout();
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibException.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibException.java
new file mode 100644
index 00000000..cc80741d
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBLibException.java
@@ -0,0 +1,39 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.SQLException;
+
+/**
+ * An exception time for handling DBLIB specific error handling. 
+ */
+public class DBLibException extends SQLException {
+	
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -5345059355083984696L;
+
+	public DBLibException(String message){
+		super(message);
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceManager.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceManager.java
new file mode 100644
index 00000000..5cf2953b
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceManager.java
@@ -0,0 +1,862 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.io.PrintWriter;
+import java.sql.Connection;
+import java.sql.SQLDataException;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.sql.SQLIntegrityConstraintViolationException;
+import java.sql.SQLSyntaxErrorException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Observable;
+import java.util.PriorityQueue;
+import java.util.Properties;
+import java.util.Queue;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import javax.sql.DataSource;
+import javax.sql.rowset.CachedRowSet;
+
+import org.apache.tomcat.jdbc.pool.PoolExhaustedException;
+import org.openecomp.sdnc.sli.resource.dblib.config.DbConfigPool;
+import org.openecomp.sdnc.sli.resource.dblib.factory.AbstractDBResourceManagerFactory;
+import org.openecomp.sdnc.sli.resource.dblib.factory.AbstractResourceManagerFactory;
+import org.openecomp.sdnc.sli.resource.dblib.factory.DBConfigFactory;
+import org.openecomp.sdnc.sli.resource.dblib.pm.PollingWorker;
+import org.openecomp.sdnc.sli.resource.dblib.pm.SQLExecutionMonitor;
+import com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * @version $Revision: 1.15 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public class DBResourceManager implements DataSource, DataAccessor, DBResourceObserver, DbLibService {
+	private static Logger LOGGER = LoggerFactory.getLogger(DBResourceManager.class);
+
+	transient boolean terminating = false;
+	transient protected long retryInterval = 10000L;
+	transient boolean recoveryMode = true;
+
+	protected final AtomicBoolean dsSelector = new  AtomicBoolean();
+
+//	Queue<CachedDataSource> dsQueue = new ConcurrentLinkedQueue<CachedDataSource>();
+	Queue<CachedDataSource> dsQueue = new PriorityQueue<CachedDataSource>(4, new Comparator<CachedDataSource>(){
+
+		@Override
+		public int compare(CachedDataSource left, CachedDataSource right) {
+			try {
+				if(!left.isSlave())
+					return -1;
+				if(!right.isSlave())
+					return 1;
+
+			} catch (Throwable e) {
+				LOGGER.warn("", e);
+			}
+			return 0;
+		}
+
+	});
+	protected final Set<CachedDataSource> broken = Collections.synchronizedSet(new HashSet<CachedDataSource>());
+	protected final Object monitor = new Object();
+	protected final Properties configProps;
+	protected final Thread worker;
+
+	protected final long terminationTimeOut;
+	protected final boolean monitorDbResponse;
+	protected final long monitoringInterval;
+	protected final long monitoringInitialDelay;
+	protected final long expectedCompletionTime;
+	protected final long unprocessedFailoverThreshold;
+
+	public DBResourceManager(Properties props){
+		this.configProps = props;
+
+		// get retry interval value
+		retryInterval = getLongFromProperties(props, "org.openecomp.dblib.connection.retry", 10000L);
+
+		// get recovery mode flag
+		recoveryMode = getBooleanFromProperties(props, "org.openecomp.dblib.connection.recovery", true);
+		if(!recoveryMode)
+		{
+			recoveryMode = false;
+			LOGGER.info("Recovery Mode disabled");
+		}
+		// get time out value for thread cleanup
+		terminationTimeOut = getLongFromProperties(props, "org.openecomp.dblib.termination.timeout", 300000L);
+		// get properties for monitoring
+		monitorDbResponse = getBooleanFromProperties(props, "org.openecomp.dblib.connection.monitor", false);
+		monitoringInterval = getLongFromProperties(props, "org.openecomp.dblib.connection.monitor.interval", 1000L);
+		monitoringInitialDelay = getLongFromProperties(props, "org.openecomp.dblib.connection.monitor.startdelay", 5000L);
+		expectedCompletionTime = getLongFromProperties(props, "org.openecomp.dblib.connection.monitor.expectedcompletiontime", 5000L);
+		unprocessedFailoverThreshold = getLongFromProperties(props, "org.openecomp.dblib.connection.monitor.unprocessedfailoverthreshold", 3L);
+
+		// initialize performance monitor
+		PollingWorker.createInistance(props);
+
+		// initialize recovery thread
+		worker = new RecoveryMgr();
+		worker.setName("DBResourcemanagerWatchThread");
+		worker.setDaemon(true);
+		worker.start();
+	}
+
+	private void config(Properties ctx) throws Exception {
+
+		DbConfigPool dbConfig = DBConfigFactory.createConfig(this.configProps);
+
+		try {
+			AbstractResourceManagerFactory factory =  AbstractDBResourceManagerFactory.getFactory(dbConfig.getType());
+			if(LOGGER.isInfoEnabled()){
+				LOGGER.info("Default DB config is : " + dbConfig.getType());
+				LOGGER.info("Using factory : " + factory.getClass().getName());
+			}
+			CachedDataSource[] cachedDS = factory.initDBResourceManager(dbConfig, this);
+			if(cachedDS == null || cachedDS.length == 0) {
+				LOGGER.error("Initialization of CachedDataSources failed. No instance was created.");
+				throw new Exception("Failed to initialize DB Library. No data source was created.");
+			}
+
+			for(int i=0; i<cachedDS.length; i++){
+				if(cachedDS[i] != null && cachedDS[i].isInitialized()){
+					setDataSource(cachedDS[i]);
+					cachedDS[i].setInterval(monitoringInterval);
+					cachedDS[i].setInitialDelay(monitoringInitialDelay);
+					cachedDS[i].setExpectedCompletionTime(expectedCompletionTime);
+					cachedDS[i].setUnprocessedFailoverThreshold(unprocessedFailoverThreshold);
+					cachedDS[i].addObserver(this);
+				}
+			}
+
+		} catch(Exception exc){
+			throw exc;
+		}
+	}
+
+	private long getLongFromProperties(Properties props, String property, long defaultValue)
+	{
+		String value = null;
+		long tmpLongValue = defaultValue;
+		try {
+			value = (String)props.getProperty(property);
+			if(value != null)
+				tmpLongValue = Long.parseLong(value);
+
+		} catch(NumberFormatException exc) {
+			if(LOGGER.isWarnEnabled()){
+				LOGGER.warn("'"+property+"'=" + value+" is invalid. It should be a numeric value");
+			}
+		} catch(Exception exc) {
+		}
+		return tmpLongValue;
+
+	}
+
+	private boolean getBooleanFromProperties(Properties props, String property, boolean defaultValue)
+	{
+		boolean tmpValue = defaultValue;
+		String value = null;
+
+		try {
+			value = (String)props.getProperty(property);
+			if(value != null)
+				tmpValue = Boolean.parseBoolean(value);
+
+		} catch(NumberFormatException exc) {
+			if(LOGGER.isWarnEnabled()){
+				LOGGER.warn("'"+property+"'=" + value+" is invalid. It should be a boolean value");
+			}
+		} catch(Exception exc) {
+		}
+		return tmpValue;
+
+	}
+
+
+	public void update(Observable observable, Object data) {
+		// if observable is active and there is a standby available, switch
+		if(observable instanceof SQLExecutionMonitor)
+		{
+			SQLExecutionMonitor monitor = (SQLExecutionMonitor)observable;
+			if(monitor.getParent() instanceof CachedDataSource)
+			{
+				CachedDataSource dataSource = (CachedDataSource)monitor.getParent();
+				if(dataSource == dsQueue.peek())
+				{
+					if(recoveryMode && dsQueue.size() > 1){
+						handleGetConnectionException(dataSource, new Exception(data.toString()));
+					}
+				}
+			}
+		}
+	}
+
+	public void testForceRecovery()
+	{
+		CachedDataSource active = (CachedDataSource) this.dsQueue.peek();
+		handleGetConnectionException(active, new Exception("test"));
+	}
+
+	class RecoveryMgr extends Thread {
+
+		public void run() {
+			while(!terminating)
+			{
+				try {
+					Thread.sleep(retryInterval);
+				} catch (InterruptedException e1) {	}
+				CachedDataSource brokenSource = null;
+				try {
+					if (!broken.isEmpty()) {
+						CachedDataSource[] sourceArray = broken.toArray(new CachedDataSource[0]);
+						for (int i = 0; i < sourceArray.length; i++)
+						{
+							brokenSource = sourceArray[i];
+							if (brokenSource instanceof TerminatingCachedDataSource)
+								break;
+							if (resetConnectionPool(brokenSource)) {
+								broken.remove(brokenSource);
+								brokenSource.blockImmediateOffLine();
+								dsQueue.add(brokenSource);
+								LOGGER.info("DataSource <"
+										+ brokenSource.getDbConnectionName()
+										+ "> recovered.");
+							}
+							brokenSource = null;
+						}
+					}
+				} catch (Exception exc) {
+					LOGGER.warn(exc.getMessage());
+					if(brokenSource != null){
+						try {
+							if(!broken.contains(brokenSource))
+								broken.add(brokenSource);
+							brokenSource = null;
+						} catch (Exception e1) {	}
+					}
+				}
+			}
+			LOGGER.info("DBResourceManager.RecoveryMgr <"+this.toString() +"> terminated." );
+		}
+
+		private boolean resetConnectionPool(CachedDataSource dataSource){
+			try {
+				return dataSource.testConnection();
+			} catch (Exception exc) {
+				LOGGER.info("DataSource <" + dataSource.getDbConnectionName() + "> resetCache failed with error: "+ exc.getMessage());
+				return false;
+			}
+		}
+	}
+
+	/* (non-Javadoc)
+	 * @see org.openecomp.sdnc.sli.resource.dblib.DbLibService#getData(java.lang.String, java.util.ArrayList, java.lang.String)
+	 */
+	@Override
+	public CachedRowSet getData(String statement, ArrayList<String> arguments, String preferredDS) throws SQLException {
+		ArrayList<Object> newList=new ArrayList<Object>();
+		if(arguments != null && !arguments.isEmpty()) {
+			newList.addAll(arguments);
+		}
+		if(recoveryMode)
+			return requestDataWithRecovery(statement, newList, preferredDS);
+		else
+			return requestDataNoRecovery(statement, newList, preferredDS);
+	}
+
+	private CachedRowSet requestDataWithRecovery(String statement, ArrayList<Object> arguments, String preferredDS) throws SQLException {
+		Throwable lastException = null;
+		CachedDataSource active = null;
+
+		// test if there are any connection pools available
+		LinkedList<CachedDataSource> sources = new LinkedList<CachedDataSource>(this.dsQueue);
+		if(sources.isEmpty()){
+			LOGGER.error("Generated alarm: DBResourceManager.getData - No active DB connection pools are available.");
+			throw new DBLibException("No active DB connection pools are available in RequestDataWithRecovery call.");
+		}
+		if(preferredDS != null && !sources.peek().getDbConnectionName().equals(preferredDS)) {
+			Collections.reverse(sources);
+		}
+
+
+		// loop through available data sources to retrieve data.
+		while(!sources.isEmpty())
+		{
+			active = sources.peek();
+
+			long time = System.currentTimeMillis();
+			try {
+				if(!active.isFabric()) {
+					CachedDataSource master = findMaster();
+					if(master != null) {
+						active = master;
+						master = null;
+					}
+				}
+				sources.remove(active);
+				return active.getData(statement, arguments);
+			} catch(SQLDataException exc){
+				throw exc;
+			} catch(SQLSyntaxErrorException exc){
+				throw exc;
+			} catch(SQLIntegrityConstraintViolationException exc){
+				throw exc;
+			} catch(Throwable exc){
+				lastException = exc;
+				String message = exc.getMessage();
+				if(message == null) {
+					if(exc.getCause() != null) {
+						message = exc.getCause().getMessage();
+					}
+					if(message == null)
+						message = exc.getClass().getName();
+				}
+				LOGGER.error("Generated alarm: "+active.getDbConnectionName()+" - "+message);
+				handleGetConnectionException(active, exc);
+			} finally {
+				if(LOGGER.isDebugEnabled()){
+					time = (System.currentTimeMillis() - time);
+					LOGGER.debug("getData processing time : "+ active.getDbConnectionName()+"  "+time+" miliseconds.");
+				}
+			}
+		}
+		if(lastException instanceof SQLException){
+			throw (SQLException)lastException;
+		}
+		// repackage the exception
+		// you are here because either you run out of available data sources
+		// or the last exception was not of SQLException type.
+		// repackage the exception
+		if(lastException == null) {
+			throw new DBLibException("The operation timed out while waiting to acquire a new connection." );
+		} else {
+			SQLException exception = new DBLibException(lastException.getMessage());
+			exception.setStackTrace(lastException.getStackTrace());
+			if(lastException.getCause() instanceof SQLException) {
+				throw (SQLException)lastException.getCause();
+			}
+			throw exception;
+		}
+	}
+
+	private CachedRowSet requestDataNoRecovery(String statement, ArrayList<Object> arguments, String preferredDS) throws SQLException {
+		if(dsQueue.isEmpty()){
+			LOGGER.error("Generated alarm: DBResourceManager.getData - No active DB connection pools are available.");
+			throw new DBLibException("No active DB connection pools are available in RequestDataNoRecovery call.");
+		}
+		CachedDataSource active = (CachedDataSource) this.dsQueue.peek();
+		long time = System.currentTimeMillis();
+		try {
+			if(!active.isFabric()) {
+				CachedDataSource master = findMaster();
+				if(master != null)
+					active = master;
+			}
+			return active.getData(statement, arguments);
+//		} catch(SQLDataException exc){
+//			throw exc;
+		} catch(Throwable exc){
+			String message = exc.getMessage();
+			if(message == null)
+				message = exc.getClass().getName();
+			LOGGER.error("Generated alarm: "+active.getDbConnectionName()+" - "+message);
+			if(exc instanceof SQLException)
+				throw (SQLException)exc;
+			else {
+				DBLibException excptn = new DBLibException(exc.getMessage());
+				excptn.setStackTrace(exc.getStackTrace());
+				throw excptn;
+			}
+		} finally {
+			if(LOGGER.isDebugEnabled()){
+				time = (System.currentTimeMillis() - time);
+				LOGGER.debug(">> getData : "+ active.getDbConnectionName()+"  "+time+" miliseconds.");
+			}
+		}
+	}
+
+
+	/* (non-Javadoc)
+	 * @see org.openecomp.sdnc.sli.resource.dblib.DbLibService#writeData(java.lang.String, java.util.ArrayList, java.lang.String)
+	 */
+	@Override
+	public boolean writeData(String statement, ArrayList<String> arguments, String preferredDS) throws SQLException
+        {
+		ArrayList<Object> newList=new ArrayList<Object>();
+		if(arguments != null && !arguments.isEmpty()) {
+			newList.addAll(arguments);
+		}
+
+		return writeDataNoRecovery(statement, newList, preferredDS);
+	}
+
+	CachedDataSource findMaster() throws PoolExhaustedException, MySQLNonTransientConnectionException {
+		CachedDataSource master = null;
+		CachedDataSource[] dss = this.dsQueue.toArray(new CachedDataSource[0]);
+		for(int i=0; i<dss.length; i++) {
+			if(!dss[i].isSlave()) {
+				master = dss[i];
+				if(i != 0) {
+					dsQueue.remove(master);
+					dsQueue.add(master);
+				}
+				return master;
+			}
+		}
+		if(master == null) {
+			LOGGER.warn("MASTER not found.");
+		}
+		return master;
+	}
+
+
+	private boolean writeDataNoRecovery(String statement, ArrayList<Object> arguments, String preferredDS) throws SQLException {
+		if(dsQueue.isEmpty()){
+			LOGGER.error("Generated alarm: DBResourceManager.getData - No active DB connection pools are available.");
+			throw new DBLibException("No active DB connection pools are available in RequestDataNoRecovery call.");
+		}
+
+		boolean initialRequest = true;
+		boolean retryAllowed = true;
+		CachedDataSource active = (CachedDataSource) this.dsQueue.peek();
+		long time = System.currentTimeMillis();
+		while(initialRequest) {
+			initialRequest = false;
+			try {
+				if(!active.isFabric()) {
+					CachedDataSource master = findMaster();
+					if(master != null) {
+						active = master;
+					}
+				}
+
+				return active.writeData(statement, arguments);
+			} catch(Throwable exc){
+				String message = exc.getMessage();
+				if(message == null)
+					message = exc.getClass().getName();
+				LOGGER.error("Generated alarm: "+active.getDbConnectionName()+" - "+message);
+				if(exc instanceof SQLException) {
+					SQLException sqlExc = SQLException.class.cast(exc);
+					// handle read-only exception
+					if(sqlExc.getErrorCode() == 1290 && "HY000".equals(sqlExc.getSQLState())) {
+						LOGGER.warn("retrying due to: " + sqlExc.getMessage());
+						dsQueue.remove(active);
+						dsQueue.add(active);
+						if(retryAllowed){
+							retryAllowed = false;
+							initialRequest = true;
+							continue;
+						}
+					}
+					throw (SQLException)exc;
+				} else {
+					DBLibException excptn = new DBLibException(exc.getMessage());
+					excptn.setStackTrace(exc.getStackTrace());
+					throw excptn;
+				}
+			} finally {
+				if(LOGGER.isDebugEnabled()){
+					time = (System.currentTimeMillis() - time);
+					LOGGER.debug("writeData processing time : "+ active.getDbConnectionName()+"  "+time+" miliseconds.");
+				}
+			}
+		}
+		return true;
+	}
+
+	private void setDataSource(CachedDataSource dataSource) {
+		if(dataSource.testConnection(true)){
+			this.dsQueue.add(dataSource);
+		} else {
+			this.broken.add(dataSource);
+		}
+	}
+
+	public Connection getConnection() throws SQLException {
+		Throwable lastException = null;
+		CachedDataSource active = null;
+
+		if(dsQueue.isEmpty()){
+			throw new DBLibException("No active DB connection pools are available in GetConnection call.");
+		}
+
+		try {
+			active = dsQueue.peek();
+			CachedDataSource tmpActive = findMaster();
+			if(tmpActive != null) {
+				active = tmpActive;
+			}
+			return new DBLibConnection(active.getConnection(), active);
+		} catch(javax.sql.rowset.spi.SyncFactoryException exc){
+			LOGGER.debug("Free memory (bytes): " + Runtime.getRuntime().freeMemory());
+			LOGGER.warn("CLASSPATH issue. Allowing retry", exc);
+			lastException = exc;
+		} catch(PoolExhaustedException exc) {
+			throw new NoAvailableConnectionsException(exc);
+		} catch(MySQLNonTransientConnectionException exc){
+			throw new NoAvailableConnectionsException(exc);
+		} catch(Exception exc){
+			lastException = exc;
+			if(recoveryMode){
+				handleGetConnectionException(active, exc);
+			} else {
+				if(exc instanceof MySQLNonTransientConnectionException) {
+					throw new NoAvailableConnectionsException(exc);
+				} if(exc instanceof SQLException) {
+					throw (SQLException)exc;
+				} else {
+					DBLibException excptn = new DBLibException(exc.getMessage());
+					excptn.setStackTrace(exc.getStackTrace());
+					throw excptn;
+				}
+			}
+		} catch (Throwable trwb) {
+			DBLibException excptn = new DBLibException(trwb.getMessage());
+			excptn.setStackTrace(trwb.getStackTrace());
+			throw excptn;
+		} finally {
+			if(LOGGER.isDebugEnabled()){
+				displayState();
+			}
+		}
+
+		if(lastException instanceof SQLException){
+			throw (SQLException)lastException;
+		}
+		// repackage the exception
+		if(lastException == null) {
+			throw new DBLibException("The operation timed out while waiting to acquire a new connection." );
+		} else {
+			SQLException exception = new DBLibException(lastException.getMessage());
+			exception.setStackTrace(lastException.getStackTrace());
+			if(lastException.getCause() instanceof SQLException) {
+//				exception.setNextException((SQLException)lastException.getCause());
+				throw (SQLException)lastException.getCause();
+			}
+			throw exception;
+		}
+	}
+
+	public Connection getConnection(String username, String password)
+	throws SQLException {
+		CachedDataSource active = null;
+
+		if(dsQueue.isEmpty()){
+			throw new DBLibException("No active DB connection pools are available in GetConnection call.");
+		}
+
+
+		try {
+			active = dsQueue.peek();
+			CachedDataSource tmpActive = findMaster();
+			if(tmpActive != null) {
+				active = tmpActive;
+			}
+			return active.getConnection(username, password);
+		} catch(Throwable exc){
+			if(recoveryMode){
+				handleGetConnectionException(active, exc);
+			} else {
+				if(exc instanceof SQLException)
+					throw (SQLException)exc;
+				else {
+					DBLibException excptn = new DBLibException(exc.getMessage());
+					excptn.setStackTrace(exc.getStackTrace());
+					throw excptn;
+				}
+			}
+
+		}
+
+		throw new DBLibException("No connections available in DBResourceManager in GetConnection call.");
+	}
+
+	private void handleGetConnectionException(CachedDataSource source, Throwable exc) {
+		try {
+			if(!source.canTakeOffLine())
+			{
+				LOGGER.error("Could not switch due to blocking");
+				return;
+			}
+
+			boolean removed = dsQueue.remove(source);
+			if(!broken.contains(source))
+			{
+				if(broken.add(source))
+				{
+					LOGGER.warn("DB Recovery: DataSource <" + source.getDbConnectionName()	+ "> put in the recovery mode. Reason : " + exc.getMessage());
+				} else {
+					LOGGER.warn("Error putting DataSource <" +source.getDbConnectionName()+  "> in recovery mode.");
+				}
+			} else {
+				LOGGER.info("DB Recovery: DataSource <" + source.getDbConnectionName() + "> already in recovery queue");
+			}
+			if(removed)
+			{
+				if(!dsQueue.isEmpty())
+				{
+					LOGGER.warn("DB DataSource <" + dsQueue.peek().getDbConnectionName()	+ "> became active");
+				}
+			}
+		} catch (Exception e) {
+			LOGGER.error("", e);
+		}
+	}
+
+	public void cleanUp() {
+		for(Iterator<CachedDataSource> it=dsQueue.iterator();it.hasNext();){
+			CachedDataSource cds = (CachedDataSource)it.next();
+			it.remove();
+			cds.cleanUp();
+		}
+
+		try {
+			this.terminating = true;
+			if(broken != null)
+			{
+				try {
+					broken.add( new TerminatingCachedDataSource(null));
+				} catch(Exception exc){
+					LOGGER.error("Waiting for Worker to stop", exc);
+				}
+			}
+			worker.join(terminationTimeOut);
+			LOGGER.info("DBResourceManager.RecoveryMgr <"+worker.toString() +"> termination was successful: " + worker.getState());
+		} catch(Exception exc){
+			LOGGER.error("Waiting for Worker thread to terminate ", exc);
+		}
+	}
+
+	public static DBResourceManager create(Properties props) throws Exception {
+		DBResourceManager dbmanager = new DBResourceManager(props);
+		dbmanager.config(props);
+		return dbmanager;
+	}
+
+	public PrintWriter getLogWriter() throws SQLException {
+		return ((CachedDataSource)this.dsQueue.peek()).getLogWriter();
+	}
+
+	public int getLoginTimeout() throws SQLException {
+		return ((CachedDataSource)this.dsQueue.peek()).getLoginTimeout();
+	}
+
+	public void setLogWriter(PrintWriter out) throws SQLException {
+		((CachedDataSource)this.dsQueue.peek()).setLogWriter(out);
+	}
+
+	public void setLoginTimeout(int seconds) throws SQLException {
+		((CachedDataSource)this.dsQueue.peek()).setLoginTimeout(seconds);
+	}
+
+	public void displayState(){
+		if(LOGGER.isDebugEnabled()){
+			LOGGER.debug("POOLS : Active = "+dsQueue.size() + ";\t Broken = "+broken.size());
+			CachedDataSource current = (CachedDataSource)dsQueue.peek();
+			if(current != null) {
+				LOGGER.debug("POOL : Active name = \'"+current.getDbConnectionName()+ "\'");
+			}
+		}
+	}
+
+	/* (non-Javadoc)
+	 * @see org.openecomp.sdnc.sli.resource.dblib.DbLibService#isActive()
+	 */
+	@Override
+	public boolean isActive() {
+		return this.dsQueue.size()>0;
+	}
+
+	public String getActiveStatus(){
+		return "Connected: " + dsQueue.size()+"\tIn-recovery: "+broken.size();
+	}
+
+	public String getDBStatus(boolean htmlFormat) {
+		StringBuilder buffer = new StringBuilder();
+
+		ArrayList<CachedDataSource> list = new ArrayList<CachedDataSource>();
+		list.addAll(dsQueue);
+		list.addAll(broken);
+		if (htmlFormat)
+		{
+			buffer.append("<tr class=\"headerRow\"><th id=\"header1\">")
+					.append("Name:").append("</th>");
+			for (int i = 0; i < list.size(); i++) {
+				buffer.append("<th id=\"header").append(2 + i).append("\">");
+				buffer.append(((CachedDataSource) list.get(i)).getDbConnectionName()).append("</th>");
+			}
+			buffer.append("</tr>");
+
+			buffer.append("<tr><td>State:</td>");
+			for (int i = 0; i < list.size(); i++) {
+				if (broken.contains(list.get(i))) {
+					buffer.append("<td>in recovery</td>");
+				}
+				if (dsQueue.contains(list.get(i))) {
+					if (dsQueue.peek() == list.get(i))
+						buffer.append("<td>active</td>");
+					else
+						buffer.append("<td>standby</td>");
+				}
+			}
+			buffer.append("</tr>");
+
+		} else {
+			for (int i = 0; i < list.size(); i++) {
+				buffer.append("Name: ").append(((CachedDataSource) list.get(i)).getDbConnectionName());
+				buffer.append("\tState: ");
+				if (broken.contains(list.get(i))) {
+					buffer.append("in recovery");
+				} else
+				if (dsQueue.contains(list.get(i))) {
+					if (dsQueue.peek() == list.get(i))
+						buffer.append("active");
+					else
+						buffer.append("standby");
+				}
+
+				buffer.append("\n");
+
+			}
+		}
+		return buffer.toString();
+	}
+
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		return false;
+	}
+
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		return null;
+	}
+
+	/**
+	 * @return the monitorDbResponse
+	 */
+	public final boolean isMonitorDbResponse() {
+		return recoveryMode && monitorDbResponse;
+	}
+
+	public void test(){
+		CachedDataSource obj = dsQueue.peek();
+		Exception ption = new Exception();
+		try {
+			for(int i=0; i<5; i++)
+			{
+				handleGetConnectionException(obj, ption);
+			}
+		} catch(Throwable exc){
+			LOGGER.warn("", exc);
+		}
+	}
+
+	public String getPreferredDSName(){
+		if(isActive()){
+			return getPreferredDataSourceName(dsSelector);
+		}
+		return "";
+	}
+
+	public String getPreferredDataSourceName(AtomicBoolean flipper) {
+
+		LinkedList<CachedDataSource> snapshot = new LinkedList<CachedDataSource>(dsQueue);
+		if(snapshot.size() > 1){
+			CachedDataSource first = snapshot.getFirst();
+			CachedDataSource last = snapshot.getLast();
+
+			int delta = first.getMonitor().getPorcessedConnectionsCount() - last.getMonitor().getPorcessedConnectionsCount();
+			if(delta < 0) {
+				flipper.set(false);
+			} else if(delta > 0) {
+				flipper.set(true);
+			} else {
+				// check the last value and return !last
+				flipper.getAndSet(!flipper.get());
+			}
+
+			if (flipper.get())
+				Collections.reverse(snapshot);
+		}
+		return snapshot.peek().getDbConnectionName();
+	}
+
+	public java.util.logging.Logger getParentLogger()
+			throws SQLFeatureNotSupportedException {
+		return null;
+	}
+
+	public String getMasterName() {
+		if(isActive()){
+			return getMasterDataSourceName(dsSelector);
+		}
+		return "";
+	}
+
+
+	private String getMasterDataSourceName(AtomicBoolean flipper) {
+
+		LinkedList<CachedDataSource> snapshot = new LinkedList<CachedDataSource>(dsQueue);
+		if(snapshot.size() > 1){
+			CachedDataSource first = snapshot.getFirst();
+			CachedDataSource last = snapshot.getLast();
+
+			int delta = first.getMonitor().getPorcessedConnectionsCount() - last.getMonitor().getPorcessedConnectionsCount();
+			if(delta < 0) {
+				flipper.set(false);
+			} else if(delta > 0) {
+				flipper.set(true);
+			} else {
+				// check the last value and return !last
+				flipper.getAndSet(!flipper.get());
+			}
+
+			if (flipper.get())
+				Collections.reverse(snapshot);
+		}
+		return snapshot.peek().getDbConnectionName();
+	}
+
+    class RemindTask extends TimerTask {
+        public void run() {
+			CachedDataSource ds = dsQueue.peek();
+			if(ds != null)
+				ds.getPoolInfo(false);
+        }
+    }
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceObserver.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceObserver.java
new file mode 100644
index 00000000..e06779f3
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DBResourceObserver.java
@@ -0,0 +1,27 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.util.Observer;
+
+public interface DBResourceObserver extends Observer {
+	public boolean isMonitorDbResponse();
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataAccessor.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataAccessor.java
new file mode 100644
index 00000000..cd054a51
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataAccessor.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+import javax.sql.rowset.CachedRowSet;
+
+public interface DataAccessor {
+
+	public abstract CachedRowSet getData(String statement, ArrayList<String> arguments, String preferredDS)
+			throws SQLException;
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataSourceComparator.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataSourceComparator.java
new file mode 100644
index 00000000..37d62513
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DataSourceComparator.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.util.Comparator;
+
+public interface DataSourceComparator extends Comparator <CachedDataSource>{
+
+	public abstract CachedDataSource getLastUsed();
+
+	public abstract void setLastUsed(CachedDataSource lastUsed);
+
+	public abstract int compare(CachedDataSource ds1, CachedDataSource ds2);
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DbLibService.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DbLibService.java
new file mode 100644
index 00000000..25edd1f0
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DbLibService.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+import javax.sql.rowset.CachedRowSet;
+
+public interface DbLibService {
+
+	/* (non-Javadoc)
+	 * @see DataAccessor#getData(java.lang.String, java.util.ArrayList)
+	 */
+	public abstract CachedRowSet getData(String statement,
+			ArrayList<String> arguments, String preferredDS)
+			throws SQLException;
+
+	/* (non-Javadoc)
+	 * @see DataAccessor#writeData(java.lang.String, java.util.ArrayList)
+	 */
+	public abstract boolean writeData(String statement,
+			ArrayList<String> arguments, String preferredDS)
+			throws SQLException;
+
+	public abstract boolean isActive();
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DblibConfigurationException.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DblibConfigurationException.java
new file mode 100644
index 00000000..17700a5e
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/DblibConfigurationException.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+
+public class DblibConfigurationException extends Exception {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+	
+	public DblibConfigurationException()
+	{
+		super();
+	}
+	
+	public DblibConfigurationException(String msg)
+	{
+		super(msg);
+	}
+
+	public DblibConfigurationException(String msg, Throwable t)
+	{
+		super(msg, t);
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/NoAvailableConnectionsException.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/NoAvailableConnectionsException.java
new file mode 100644
index 00000000..16895b4d
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/NoAvailableConnectionsException.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.SQLException;
+
+public class NoAvailableConnectionsException extends SQLException {
+
+	/**
+	 *
+	 */
+	private static final long serialVersionUID = -6259205931674413018L;
+
+	public NoAvailableConnectionsException(Exception exc) {
+		super(exc);
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/TerminatingCachedDataSource.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/TerminatingCachedDataSource.java
new file mode 100644
index 00000000..234bbed0
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/TerminatingCachedDataSource.java
@@ -0,0 +1,82 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib;
+
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.logging.Logger;
+
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.pm.SQLExecutionMonitorObserver;
+
+
+public class TerminatingCachedDataSource extends CachedDataSource implements SQLExecutionMonitorObserver {
+
+	public TerminatingCachedDataSource(BaseDBConfiguration jdbcElem) throws DBConfigException {
+		super(jdbcElem);
+	}
+
+	protected void configure(BaseDBConfiguration jdbcElem) throws DBConfigException {
+		// no action
+	}
+
+	public long getInterval() {
+		return 1000;
+	}
+
+	public long getInitialDelay() {
+		return 1000;
+	}
+
+	public long getExpectedCompletionTime() {
+		return 50;
+	}
+
+	public void setExpectedCompletionTime(long value) {
+		
+	}
+
+	public void setInterval(long value) {
+		
+	}
+
+	public void setInitialDelay(long value) {
+		
+	}
+
+	public long getUnprocessedFailoverThreshold() {
+		return 3;
+	}
+
+	public void setUnprocessedFailoverThreshold(long value) {
+		
+	}
+	
+	public int compareTo(CachedDataSource ods)
+	{
+		return 0;
+	}
+
+	public Logger getParentLogger() throws SQLFeatureNotSupportedException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/BaseDBConfiguration.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/BaseDBConfiguration.java
new file mode 100644
index 00000000..976b1cf2
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/BaseDBConfiguration.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.config;
+
+import java.util.Properties;
+
+public abstract class BaseDBConfiguration {
+	public static final String DATABASE_TYPE	= "org.openecomp.sdnc.sli.dbtype";
+	public static final String DATABASE_URL		= "org.openecomp.sdnc.sli.jdbc.url";
+	public static final String DATABASE_NAME	= "org.openecomp.sdnc.sli.jdbc.database";
+	public static final String CONNECTION_NAME	= "org.openecomp.sdnc.sli.jdbc.connection.name";
+	public static final String DATABASE_USER 	= "org.openecomp.sdnc.sli.jdbc.user";
+	public static final String DATABASE_PSSWD	= "org.openecomp.sdnc.sli.jdbc.password";
+	public static final String CONNECTION_TIMEOUT="org.openecomp.sdnc.sli.jdbc.connection.timeout";
+	public static final String REQUEST_TIMEOUT	= "org.openecomp.sdnc.sli.jdbc.request.timeout";
+	public static final String MIN_LIMIT		= "org.openecomp.sdnc.sli.jdbc.limit.min";
+	public static final String MAX_LIMIT		= "org.openecomp.sdnc.sli.jdbc.limit.max";
+	public static final String INIT_LIMIT		= "org.openecomp.sdnc.sli.jdbc.limit.init";
+	public static final String DATABASE_HOSTS   = "org.openecomp.sdnc.sli.jdbc.hosts";
+
+	
+	protected final Properties props;
+
+	public BaseDBConfiguration(Properties properties) {
+		this.props = properties;
+	}
+
+	public int getConnTimeout() {
+		try {
+			String value = props.getProperty(CONNECTION_TIMEOUT);
+			return Integer.parseInt(value);
+		} catch(Exception exc) {
+			return -1;
+		}
+	}
+
+	public int getRequestTimeout() {
+		try {
+			String value = props.getProperty(REQUEST_TIMEOUT);
+			if(value == null)
+				return -1;
+			return Integer.parseInt(value);
+		} catch(Exception exc) {
+			return -1;
+		}
+	}
+
+	public String getDbConnectionName() {
+		return props.getProperty(CONNECTION_NAME);
+	}
+
+	public String getDatabaseName() {
+		return props.getProperty(DATABASE_NAME);
+	}
+
+	public String getDbUserId() {
+		return props.getProperty(DATABASE_USER);
+	}
+
+	public String getDbPasswd() {
+		return props.getProperty(DATABASE_PSSWD);
+	}
+
+	public int getDbMinLimit() {
+		String value = props.getProperty(MIN_LIMIT);
+		return Integer.parseInt(value);
+	}
+
+	public int getDbMaxLimit() {
+		String value = props.getProperty(MAX_LIMIT);
+		return Integer.parseInt(value);
+	}
+
+	public int getDbInitialLimit() {
+		String value = props.getProperty(INIT_LIMIT);
+		return Integer.parseInt(value);
+	}
+
+	public String getDbUrl() {
+		return props.getProperty(DATABASE_URL);
+	}
+
+	public String getServerGroup() {
+		return null;
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/DbConfigPool.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/DbConfigPool.java
new file mode 100644
index 00000000..117f9321
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/DbConfigPool.java
@@ -0,0 +1,56 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.config;
+
+import java.util.ArrayList;
+import java.util.Properties;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DbConfigPool {
+	private static Logger LOGGER = LoggerFactory.getLogger(DbConfigPool.class);
+
+	private final String type;
+
+	private ArrayList<BaseDBConfiguration> configurations = new ArrayList<BaseDBConfiguration>();
+
+	public DbConfigPool(Properties properties) {
+		LOGGER.debug("Initializing DbConfigType");
+		type = properties.getProperty(BaseDBConfiguration.DATABASE_TYPE, "JDBC").toUpperCase();
+	}
+
+	public int getTimeout() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	public String getType() {
+		return type;
+	}
+
+	public JDBCConfiguration[] getJDBCbSourceArray() {
+		return configurations.toArray(new JDBCConfiguration[configurations.size()]);
+	}
+
+	public void addConfiguration(BaseDBConfiguration config) {
+		configurations.add(config);
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/JDBCConfiguration.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/JDBCConfiguration.java
new file mode 100644
index 00000000..cb6ea3e5
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/config/JDBCConfiguration.java
@@ -0,0 +1,31 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.config;
+
+import java.util.Properties;
+
+public class JDBCConfiguration extends BaseDBConfiguration {
+
+	public JDBCConfiguration(Properties xmlElem) {
+		super(xmlElem);
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractDBResourceManagerFactory.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractDBResourceManagerFactory.java
new file mode 100644
index 00000000..f4291a7d
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractDBResourceManagerFactory.java
@@ -0,0 +1,39 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.factory;
+
+import org.openecomp.sdnc.sli.resource.dblib.jdbc.JdbcDbResourceManagerFactory;
+
+/**
+ * @version $Revision: 1.1 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public class AbstractDBResourceManagerFactory {
+
+	public static AbstractResourceManagerFactory getFactory(String type) throws FactoryNotDefinedException {
+
+		// JDBC
+		return JdbcDbResourceManagerFactory.createIntstance();
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractResourceManagerFactory.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractResourceManagerFactory.java
new file mode 100644
index 00000000..0f58a3f0
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/AbstractResourceManagerFactory.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.factory;
+
+
+import java.sql.SQLException;
+import java.util.Set;
+import java.util.concurrent.Callable;
+
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSource;
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSourceFactory;
+import org.openecomp.sdnc.sli.resource.dblib.DBConfigException;
+import org.openecomp.sdnc.sli.resource.dblib.DBResourceManager;
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.config.DbConfigPool;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @version $Revision: 1.6 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public abstract class AbstractResourceManagerFactory {
+	private static Logger LOGGER = LoggerFactory.getLogger(AbstractResourceManagerFactory.class);
+
+	public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager manager) throws Exception;
+	public abstract CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig,	DBResourceManager dbResourceManager, String sourceName) throws SQLException ;
+
+
+	public static AbstractResourceManagerFactory createIntstance() throws FactoryNotDefinedException {
+		throw new FactoryNotDefinedException("Factory method 'createIntstance' needs to be overriden in DBResourceManagerFactory");
+	}
+
+	public class DBInitTask implements Callable<CachedDataSource>
+	{
+		private BaseDBConfiguration config = null;
+		private Set<DBInitTask> activeTasks;
+
+		public DBInitTask(JDBCConfiguration jdbcconfig, Set<DBInitTask> tasks) {
+			this.config = jdbcconfig;
+			this.activeTasks = tasks;
+		}
+
+		public CachedDataSource call() throws Exception {
+			CachedDataSource ds = null;
+			try {
+				ds = CachedDataSourceFactory.createDataSource(config);
+				return ds;
+			} finally {
+				synchronized(activeTasks) {
+					activeTasks.remove(this);
+					if (activeTasks.isEmpty()) {
+						final Runnable closure = new Runnable() {
+
+							public void run() {
+								try {
+									Thread.sleep(300);
+								} catch (Exception e) {
+								}
+								synchronized(activeTasks) {
+									activeTasks.notifyAll();
+								}
+							}
+						};
+						if (LOGGER.isDebugEnabled()) {
+							LOGGER.debug("Completed CachedDataSource.Call and notifyAll from " + ds.getDbConnectionName());
+						}
+						Thread worker = new Thread(closure);
+						worker.setDaemon(true);
+						worker.start();
+					} else {
+						if (LOGGER.isDebugEnabled()) {
+							if (ds != null) {
+								LOGGER.debug("Completed CachedDataSource.Call from " + ds.getDbConnectionName());
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/DBConfigFactory.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/DBConfigFactory.java
new file mode 100644
index 00000000..8aadcae6
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/DBConfigFactory.java
@@ -0,0 +1,100 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.factory;
+
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.Properties;
+
+import org.slf4j.LoggerFactory;
+
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.config.DbConfigPool;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+
+/**
+ * @version $Revision: 1.1 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki  01/17/08 Initial version
+ */
+public class DBConfigFactory {
+
+	public static DbConfigPool createConfig(Properties resource) {
+		return getConfigparams(resource);
+	}
+
+	static DbConfigPool getConfigparams(Properties properties){
+		DbConfigPool xmlConfig = new DbConfigPool(properties);
+		ArrayList<Properties> propertySets = new ArrayList<Properties>();
+
+		if("JDBC".equalsIgnoreCase(xmlConfig.getType())) {
+			String hosts = properties.getProperty(BaseDBConfiguration.DATABASE_HOSTS);
+			if(hosts == null || hosts.isEmpty()) {
+				propertySets.add(properties);
+			} else {
+				String[] newhost = hosts.split(",");
+				for(int i=0; i< newhost.length; i++) {
+					Properties localset = new Properties();
+					localset.putAll(properties);
+					String url = localset.getProperty(BaseDBConfiguration.DATABASE_URL);
+					if(url.contains("DBHOST"))
+						url = url.replace("DBHOST", newhost[i]);
+					if(url.contains("dbhost"))
+						url = url.replace("dbhost", newhost[i]);
+					localset.setProperty(BaseDBConfiguration.DATABASE_URL, url);
+					localset.setProperty(BaseDBConfiguration.CONNECTION_NAME, newhost[i]);
+					propertySets.add(localset);
+				}
+			}
+		} else {
+			propertySets.add(properties);
+		}
+		try {
+			Iterator<Properties>  it = propertySets.iterator();
+			while(it.hasNext()) {
+				BaseDBConfiguration config = parse(it.next());
+				xmlConfig.addConfiguration(config);
+			}
+
+		} catch (Exception e) {
+			LoggerFactory.getLogger(DBConfigFactory.class).warn("",e);
+		}
+
+		return xmlConfig;
+	}
+
+	public static BaseDBConfiguration parse(Properties props) throws Exception {
+
+		String type = props.getProperty(BaseDBConfiguration.DATABASE_TYPE);
+
+		BaseDBConfiguration config = null;
+
+		if("JDBC".equalsIgnoreCase(type)) {
+			config = new JDBCConfiguration(props);
+		}
+
+		return config;
+
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/FactoryNotDefinedException.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/FactoryNotDefinedException.java
new file mode 100644
index 00000000..e38cd351
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/factory/FactoryNotDefinedException.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.factory;
+
+
+/**
+ * @version 1.3
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki  01/16/08 Initial version
+ */
+public class FactoryNotDefinedException extends Exception {
+
+	public FactoryNotDefinedException(String message) {
+		super(message);
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDBCachedDataSource.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDBCachedDataSource.java
new file mode 100644
index 00000000..90c76f63
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDBCachedDataSource.java
@@ -0,0 +1,249 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.jdbc;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLFeatureNotSupportedException;
+
+import org.apache.tomcat.jdbc.pool.DataSource;
+import org.apache.tomcat.jdbc.pool.PoolProperties;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSource;
+import org.openecomp.sdnc.sli.resource.dblib.DBConfigException;
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+import com.mysql.jdbc.Driver;
+
+
+/**
+ * @version $Revision: 1.7 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+
+public class JdbcDBCachedDataSource extends CachedDataSource
+{
+	private String dbUserId;
+	private String dbPasswd;
+	private String dbUrl;
+
+	private int minLimit;
+	private int maxLimit;
+	private int initialLimit;
+
+	private static final String AS_CONF_ERROR = "AS_CONF_ERROR: ";
+
+	private static Logger LOGGER = LoggerFactory.getLogger(JdbcDBCachedDataSource.class);
+
+	/**
+	 * @param jdbcElem
+	 */
+	public JdbcDBCachedDataSource(BaseDBConfiguration jdbcElem)
+	{
+			super(jdbcElem);
+	}
+
+	@Override
+	protected void configure(BaseDBConfiguration xmlElem) throws DBConfigException
+	{
+		BaseDBConfiguration jdbcConfig = (BaseDBConfiguration)xmlElem;
+		if(jdbcConfig.getConnTimeout() > 0){
+			this.CONN_REQ_TIMEOUT = jdbcConfig.getConnTimeout();
+		}
+		if(jdbcConfig.getRequestTimeout() > 0){
+				this.DATA_REQ_TIMEOUT = jdbcConfig.getRequestTimeout();
+		}
+
+    	// set connection pool name
+		String dbConnectionName = jdbcConfig.getDbConnectionName();
+    	super.setDbConnectionName(dbConnectionName);
+    	// Configure the JDBC connection
+    	dbUserId = jdbcConfig.getDbUserId();
+        if (dbUserId == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbUserId attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+
+        dbPasswd = jdbcConfig.getDbPasswd();
+        if (dbPasswd == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbPasswd attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+        /*
+        dbDriver = jdbcConfig.getDbDriver();
+        if (dbDriver == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbDriver attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+        	throw new ScpTblUpdateError(errorMsg);
+        }
+        */
+
+        minLimit = jdbcConfig.getDbMinLimit();
+//        if (minLimit == null)
+//        {
+//        	String errorMsg =  "Invalid XML contents: JDBC Connection missing minLimit attribute";
+//        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+//        	throw new DBConfigException(errorMsg);
+//        }
+        maxLimit =  jdbcConfig.getDbMaxLimit();
+//        if (maxLimit == null)
+//        {
+//        	String errorMsg =  "Invalid XML contents: JDBC Connection missing maxLimit attribute";
+//        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+//        	throw new DBConfigException(errorMsg);
+//        }
+        initialLimit =  jdbcConfig.getDbInitialLimit();
+//        if (initialLimit == null)
+//        {
+//        	String errorMsg =  "Invalid XML contents: JDBC Connection missing initialLimit attribute";
+//        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+//        	throw new DBConfigException(errorMsg);
+//        }
+
+        dbUrl = jdbcConfig.getDbUrl();
+        if(dbUrl == null){
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbUrl attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+
+		try {
+			Driver dr = new com.mysql.jdbc.Driver();
+			Class clazz = Class.forName("com.mysql.jdbc.Driver") ;
+
+			PoolProperties p = new PoolProperties();
+			p.setDriverClassName("com.mysql.jdbc.Driver");
+			p.setUrl(dbUrl);
+			p.setUsername(dbUserId);
+			p.setPassword(dbPasswd);
+			p.setJmxEnabled(true);
+			p.setTestWhileIdle(false);
+			p.setTestOnBorrow(true);
+			p.setValidationQuery("SELECT 1");
+			p.setTestOnReturn(false);
+			p.setValidationInterval(30000);
+			p.setTimeBetweenEvictionRunsMillis(30000);
+			p.setInitialSize(initialLimit);
+			p.setMaxActive(maxLimit);
+			p.setMaxIdle(maxLimit);
+			p.setMaxWait(10000);
+			p.setRemoveAbandonedTimeout(60);
+			p.setMinEvictableIdleTimeMillis(30000);
+			p.setMinIdle(minLimit);
+			p.setLogAbandoned(true);
+			p.setRemoveAbandoned(true);
+			p.setJdbcInterceptors("org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;"
+					+ "org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer");
+
+			DataSource dataSource = new DataSource(p);
+
+			synchronized(this)
+			{
+				this.ds = dataSource;
+				Connection con = null;
+				PreparedStatement st = null;
+				ResultSet rs = null;
+
+				try {
+					con = dataSource.getConnection();
+					st = con.prepareStatement("Select 1 FROM DUAL");
+					rs = st.executeQuery();
+				} catch(Exception exc) {
+					LOGGER.error(exc.getMessage());
+				} finally {
+					if(rs != null) rs.close();
+					if(st != null) st.close();
+					if(con != null) con.close();
+				}
+
+				initialized = true;
+				LOGGER.info("MySQLDataSource <"+dbConnectionName+"> configured successfully. Using URL: "+dbUrl);
+			}
+
+//		} catch (SQLException exc) {
+//			initialized = false;
+//			StringBuffer sb = new StringBuffer();
+//			sb.append("Failed to initialize MySQLDataSource<");
+//			sb.append(dbConnectionName).append(">. Reason: ");
+//			sb.append(exc.getMessage());
+//			LOGGER.error("AS_CONF_ERROR: " + sb.toString());
+////			throw new DBConfigException(e.getMessage());
+		} catch (Exception exc) {
+    		initialized = false;
+			StringBuffer sb = new StringBuffer();
+			sb.append("Failed to initialize MySQLCachedDataSource <");
+			sb.append(dbConnectionName).append(">. Reason: ");
+			sb.append(exc.getMessage());
+			LOGGER.error("AS_CONF_ERROR: " + sb.toString());
+//    		throw new DBConfigException(e.getMessage());
+    	}
+    }
+
+	public final String getDbUrl()
+	{
+		return dbUrl;
+	}
+
+	public final String getDbUserId()
+	{
+		return dbUserId;
+	}
+
+	public final String getDbPasswd()
+	{
+		return dbPasswd;
+	}
+
+	public static JdbcDBCachedDataSource createInstance(BaseDBConfiguration config) /*throws Exception*/ {
+		return new JdbcDBCachedDataSource(config);
+	}
+
+	public String toString(){
+		return getDbConnectionName();
+	}
+
+	public java.util.logging.Logger getParentLogger()
+			throws SQLFeatureNotSupportedException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public void cleanUp(){
+		DataSource dataSource = (DataSource)ds;
+		dataSource.getPool().purge();
+		int active = dataSource.getActive();
+		int size = dataSource.getSize();
+		dataSource.close(true);
+		super.cleanUp();
+	}
+
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDbResourceManagerFactory.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDbResourceManagerFactory.java
new file mode 100644
index 00000000..84399dfd
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/JdbcDbResourceManagerFactory.java
@@ -0,0 +1,186 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.jdbc;
+
+
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.FutureTask;
+
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSource;
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSourceFactory;
+import org.openecomp.sdnc.sli.resource.dblib.DBResourceManager;
+import org.openecomp.sdnc.sli.resource.dblib.DataSourceComparator;
+import org.openecomp.sdnc.sli.resource.dblib.config.DbConfigPool;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.factory.AbstractResourceManagerFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @version $Revision: 1.6 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+public class JdbcDbResourceManagerFactory extends AbstractResourceManagerFactory {
+	private static Logger LOGGER = LoggerFactory.getLogger(JdbcDbResourceManagerFactory.class );
+	private JdbcDbResourceManagerFactory(){
+
+	}
+
+	class MyFutureTask extends FutureTask<CachedDataSource>
+	{
+
+		public MyFutureTask(Callable<CachedDataSource> result) {
+			super(result);
+		}
+
+	}
+
+	public CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager manager, String sourceName) throws SQLException
+	{
+		// here create the data sources objects
+		JDBCConfiguration[] list = dbConfig.getJDBCbSourceArray();
+		CachedDataSource[] cachedDS = new CachedDataSource[1];
+
+		for(int i=0, max=list.length; i<max; i++){
+			if(!sourceName.equals(list[i].getDbConnectionName()))
+				continue;
+
+			JDBCConfiguration config = list[i];
+			CachedDataSource dataSource = CachedDataSourceFactory.createDataSource(config);
+			cachedDS[0] = dataSource;
+		}
+		return cachedDS;
+	}
+
+	public CachedDataSource[] initDBResourceManager(DbConfigPool dbConfig, DBResourceManager manager) /* throws Exception */ {
+
+		ExecutorService threadExecutor = Executors.newFixedThreadPool(2);
+		// here create the data sources objects
+		JDBCConfiguration[] list = dbConfig.getJDBCbSourceArray();
+
+		MyFutureTask[] futures = new MyFutureTask[list.length];
+		final Set<DBInitTask> tasks = new HashSet<DBInitTask>();
+		if(LOGGER.isDebugEnabled()) {
+			LOGGER.debug("Creating " + list.length + " datasources.");
+		}
+
+		for(int i=0, max=list.length; i<max; i++){
+			JDBCConfiguration config = list[i];
+
+			DBInitTask task = new DBInitTask(config, tasks);
+			tasks.add(task);
+			futures[i] = new MyFutureTask(task);
+		}
+
+		try {
+			synchronized(tasks){
+				for(int i=0, max=list.length; i<max; i++){
+					if(LOGGER.isDebugEnabled())
+						LOGGER.debug("Starting executor tasks.");
+					threadExecutor.execute(futures[i]);
+				}
+				// the timeout param is set is seconds.
+				long timeout = ((dbConfig.getTimeout() <= 0) ? 60L : dbConfig.getTimeout());
+				LOGGER.debug("Timeout set to " +timeout+" seconds");
+				timeout *= 1000;
+				// the timeout param is set is seconds, hence it needs to be multiplied by 1000.
+				tasks.wait(timeout);
+				if(LOGGER.isDebugEnabled())
+					LOGGER.debug("initDBResourceManager wait completed.");
+			}
+		} catch(Exception exc) {
+			LOGGER.error("Failed to initialize JndiCachedDataSource. Reason: ", exc);
+		}
+
+		if(threadExecutor != null){
+			try {
+				threadExecutor.shutdown();
+			} catch(Exception exc){}
+		}
+
+		CachedDataSource[] cachedDS = new CachedDataSource[futures.length];
+
+		boolean initialized = false;
+		for(int i=0; i<futures.length; i++){
+			Object obj = null;
+			if(futures[i].isDone()){
+				try {
+					obj = futures[i].get();
+					if(obj instanceof CachedDataSource){
+						cachedDS[i] = (CachedDataSource)obj;
+						initialized |= cachedDS[i].isInitialized();
+						if(cachedDS[i].isInitialized())
+							LOGGER.info("DataSource "+list[i].getDbConnectionName()+" initialized successfully");
+						else
+							LOGGER.error("DataSource "+list[i].getDbConnectionName()+" initialization failed");
+					} else {
+						if(obj == null) {
+							LOGGER.warn("DataSource " + i + " initialization failed. Returned object is null");
+						} else {
+							LOGGER.warn("DataSource " + i + " initialization failed. Returned object is " + obj.getClass().getName());
+						}
+					}
+				} catch (InterruptedException exc) {
+					LOGGER.error("DataSource "+list[i].getDbConnectionName()+" initialization failed", exc);
+				} catch (ExecutionException exc) {
+					LOGGER.error("DataSource "+list[i].getDbConnectionName()+" initialization failed", exc);
+				} catch (Exception exc) {
+					LOGGER.error("DataSource "+list[i].getDbConnectionName()+" initialization failed", exc);
+				}
+			} else {
+				try {
+					obj = futures[i].get();
+					if(obj instanceof CachedDataSource){
+						LOGGER.warn("DataSource "+((CachedDataSource)obj).getDbConnectionName()+" failed");
+					} else {
+						if(obj == null) {
+							LOGGER.warn("DataSource " + i + " initialization failed. Returned object is null");
+						} else {
+							LOGGER.warn("DataSource " + i + " initialization failed. Returned object is " + obj.getClass().getName());
+						}
+					}
+				} catch (Exception exc) {
+					LOGGER.error("DataSource "+list[i].getDbConnectionName()+" initialization failed", exc);
+				}
+			}
+		}
+
+		if(!initialized){
+			new Error("Failed to initialize DB Library.");
+		}
+		return cachedDS;
+	}
+
+	public static AbstractResourceManagerFactory createIntstance() {
+		return new JdbcDbResourceManagerFactory();
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/MySQLCachedDataSource.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/MySQLCachedDataSource.java
new file mode 100644
index 00000000..a5482d08
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/jdbc/MySQLCachedDataSource.java
@@ -0,0 +1,217 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.jdbc;
+
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.Properties;
+
+import org.openecomp.sdnc.sli.resource.dblib.CachedDataSource;
+import org.openecomp.sdnc.sli.resource.dblib.DBConfigException;
+import org.openecomp.sdnc.sli.resource.dblib.config.BaseDBConfiguration;
+import org.openecomp.sdnc.sli.resource.dblib.config.JDBCConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;
+
+
+ 
+
+/**
+ * @version $Revision: 1.7 $
+ * Change Log
+ * Author         Date     Comments
+ * ============== ======== ====================================================
+ * Rich Tabedzki
+ */
+
+public class MySQLCachedDataSource extends CachedDataSource
+{
+	private String dbUserId;
+	private String dbPasswd;
+	private String dbUrl;
+	
+	private String minLimit;
+	private String maxLimit;
+	private String initialLimit;
+	
+	private static final String AS_CONF_ERROR = "AS_CONF_ERROR: ";
+	
+	private static Logger LOGGER = LoggerFactory.getLogger(MySQLCachedDataSource.class);
+
+	/**
+	 * @param jdbcElem
+	 */
+	public MySQLCachedDataSource(BaseDBConfiguration jdbcElem)
+	{
+			super(jdbcElem);
+	}
+
+	@Override
+	protected void configure(BaseDBConfiguration xmlElem) throws DBConfigException 
+	{
+		BaseDBConfiguration jdbcConfig = (BaseDBConfiguration)xmlElem;
+		if(jdbcConfig.getConnTimeout() > 0){
+			this.CONN_REQ_TIMEOUT = jdbcConfig.getConnTimeout();
+		}
+		if(jdbcConfig.getRequestTimeout() > 0){
+				this.DATA_REQ_TIMEOUT = jdbcConfig.getRequestTimeout();
+		}
+
+    	// set connection pool name
+		String dbConnectionName = jdbcConfig.getDbConnectionName();
+    	super.setDbConnectionName(dbConnectionName);
+    	// Configure the JDBC connection
+    	dbUserId = jdbcConfig.getDbUserId();
+        if (dbUserId == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbUserId attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+
+        dbPasswd = jdbcConfig.getDbPasswd();
+        if (dbPasswd == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbPasswd attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+        /*
+        dbDriver = jdbcConfig.getDbDriver();
+        if (dbDriver == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbDriver attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+        	throw new ScpTblUpdateError(errorMsg);
+        }
+        */
+
+        minLimit = Integer.toString(jdbcConfig.getDbMinLimit());
+        if (minLimit == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBC Connection missing minLimit attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+        	throw new DBConfigException(errorMsg);
+        }
+        maxLimit =  Integer.toString(jdbcConfig.getDbMaxLimit());
+        if (maxLimit == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBC Connection missing maxLimit attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+        	throw new DBConfigException(errorMsg);
+        }
+        initialLimit =  Integer.toString(jdbcConfig.getDbInitialLimit());
+        if (initialLimit == null)
+        {
+        	String errorMsg =  "Invalid XML contents: JDBC Connection missing initialLimit attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+        	throw new DBConfigException(errorMsg);
+        }
+
+        dbUrl = jdbcConfig.getDbUrl();
+        if(dbUrl == null){
+        	String errorMsg =  "Invalid XML contents: JDBCConnection missing dbUrl attribute";
+        	LOGGER.error(AS_CONF_ERROR + errorMsg);
+            throw new DBConfigException(errorMsg);
+        }
+        
+		try {
+			
+			MysqlDataSource dataSource = new MysqlDataSource();
+		    dataSource.setUser(dbUserId);
+		    dataSource.setPassword(dbPasswd);
+		    dataSource.setURL(dbUrl);
+//		    dataSource.setInitialSize(5);
+//		    dataSource.setMaxTotal(60);
+//		    dataSource.setMaxActive(100);
+//		    dataSource.setMaxWait(10000);
+//		    dataSource.setMaxIdle(10);
+
+			Properties connAttr = new Properties();
+
+			connAttr.setProperty("MinLimit", minLimit);
+			connAttr.setProperty("MaxLimit", maxLimit);
+			connAttr.setProperty("InitialLimit", initialLimit);
+			connAttr.setProperty("TRANSACTION_ISOLATION","SERIALIZABLE");
+			connAttr.setProperty("CONNECTION_TAG", dbConnectionName.toUpperCase()+"_CONNECTION");
+			connAttr.setProperty("InactivityTimeout", "900");
+			connAttr.setProperty("AbandonedConnectionTimeout", "600");
+			connAttr.setProperty("PropertyCheckInterval", "60");
+			connAttr.setProperty("ValidateConnection", "true");
+			
+
+			synchronized(this)
+			{
+				this.ds = dataSource;
+
+				initialized = true;
+				LOGGER.info("MySQLDataSource <"+dbConnectionName+"> configured successfully. Using URL: "+dbUrl);
+			}
+
+//		} catch (SQLException exc) {
+//			initialized = false;
+//			StringBuffer sb = new StringBuffer();
+//			sb.append("Failed to initialize MySQLDataSource<");
+//			sb.append(dbConnectionName).append(">. Reason: ");
+//			sb.append(exc.getMessage());
+//			LOGGER.error("AS_CONF_ERROR: " + sb.toString());
+////			throw new DBConfigException(e.getMessage());
+		} catch (Exception exc) {
+    		initialized = false;
+			StringBuffer sb = new StringBuffer();
+			sb.append("Failed to initialize MySQLCachedDataSource <");
+			sb.append(dbConnectionName).append(">. Reason: ");
+			sb.append(exc.getMessage());
+			LOGGER.error("AS_CONF_ERROR: " + sb.toString());
+//    		throw new DBConfigException(e.getMessage());
+    	}
+    }
+
+	public final String getDbUrl()
+	{
+		return dbUrl;
+	}
+
+	public final String getDbUserId()
+	{
+		return dbUserId;
+	}
+
+	public final String getDbPasswd()
+	{
+		return dbPasswd;
+	}
+
+	public static MySQLCachedDataSource createInstance(BaseDBConfiguration config) /*throws Exception*/ {
+		return new MySQLCachedDataSource(config);
+	}
+	
+	public String toString(){
+		return getDbConnectionName();
+	}
+
+	public java.util.logging.Logger getParentLogger()
+			throws SQLFeatureNotSupportedException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/PollingWorker.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/PollingWorker.java
new file mode 100644
index 00000000..de87fa7e
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/PollingWorker.java
@@ -0,0 +1,217 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.pm;
+
+import java.util.Iterator;
+import java.util.Properties;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.TreeSet;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.atomic.AtomicLong;
+
+public class PollingWorker implements Runnable {
+	
+	private Logger LOGGER = LoggerFactory.getLogger(PollingWorker.class);
+	
+	private static PollingWorker self = null;
+
+	private LinkedBlockingQueue tasks = new LinkedBlockingQueue(100);
+	private long interval = 1000L;
+	private Thread worker = null;
+	private AtomicLong[] counters = null;
+	private int[] bucketUnit = null;
+	private static boolean enabled = false;
+	private Timer timer = null;
+
+	public static void post(long starttime){
+		PollingWorker temp = self;
+		if(temp != null && enabled) {
+			temp.register(new TestSample(starttime));
+		}
+	}
+	
+	public static void createInistance(Properties props){
+		self = new PollingWorker(props);
+	}
+
+	private PollingWorker(Properties ctxprops){
+		if(ctxprops==null ||  ctxprops.getProperty("org.openecomp.sdnc.dblib.pm") == null){
+			enabled = false;
+		} else {
+			if("true".equalsIgnoreCase((String)ctxprops.getProperty("org.openecomp.sdnc.dblib.pm"))){
+				enabled = true;
+			} else {
+				enabled = false;
+			}
+		}
+
+		interval = Long.parseLong(( ctxprops == null || ctxprops.getProperty("org.openecomp.sdnc.dblib.pm.interval") == null) ? "60" : (String)ctxprops.getProperty("org.openecomp.sdnc.dblib.pm.interval"));
+		// '0' bucket is to count exceptions
+		String sampling[] = ((ctxprops == null || ctxprops.getProperty("org.openecomp.sdnc.dblib.pm.sampling")==null) ? "0,2,5,10,20,50,100" :	(String)ctxprops.getProperty("org.openecomp.sdnc.dblib.pm.sampling")).split(",");
+
+		if(enabled){
+			bucketUnit = new int[sampling.length];
+			for(int i=0, max = bucketUnit.length; i<max; i++){
+				bucketUnit[i] = Integer.parseInt(sampling[i].trim());
+			}
+			counters = new AtomicLong[bucketUnit.length+1];
+			for(int i=0, max = counters.length; i<max; i++){
+				counters[i] = new AtomicLong();
+			}
+			worker = new Thread(this);
+			worker.setDaemon(true);
+			worker.start();
+			timer = new Timer(true);
+			timer.schedule(new MyTimerTask(), interval*1000L, interval*1000L);
+		}
+	}
+	
+	private void register(TestSample object){
+		try {
+			tasks.add(object);
+		} catch(Throwable exc) {
+			// if cannot add an object to the queue, do nothing
+		}
+	}
+
+	private void deRegister(TestSample object){
+		tasks.remove(object);
+	}
+	
+	public void run() {
+		for(;;){
+			Set data = new TreeSet();
+			tasks.drainTo(data);
+			for(Iterator it = data.iterator(); it.hasNext(); ){
+				Object next = it.next();
+				if(next instanceof TestSample){
+					consume((TestSample)next);
+				} else {
+					System.out.println(next.getClass().getName());
+				}
+			}
+			try {
+				Thread.sleep(1000);
+			} catch (InterruptedException e) {
+				e.printStackTrace();
+			}
+		}
+
+	}
+	public void clearReqister(){
+		AtomicLong[] tmp = new AtomicLong[counters.length];
+		for(int i=0, max = tmp.length; i<max; i++){
+			tmp[i] = new AtomicLong();
+		}
+		AtomicLong[] tmp2 = counters;
+		synchronized(tmp2){
+			counters = tmp;
+		}
+		StringBuffer sb = new StringBuffer("CPM: ");
+		for(int i=0, max = tmp2.length; i < max; i++){
+			if(i==0 && bucketUnit[0]==0){
+				sb.append("[Exc]=");
+			} else {
+				sb.append("[");
+				if(i==bucketUnit.length){
+					sb.append("Other]=");
+				} else {
+					sb.append(bucketUnit[i]).append(" ms]=");
+				}
+			}
+			sb.append(tmp2[i].get()).append("\t");
+		}
+		LOGGER.info(sb.toString());
+	}
+	
+	class MyTimerTask extends TimerTask{
+
+		public void run() {
+			
+			clearReqister();
+		}
+		
+	}
+
+	private void consume(TestSample probe) {
+		AtomicLong[] tmp = counters;
+		synchronized(tmp){
+			counters[getBucket(probe.getDuration())].incrementAndGet();
+		}
+	}
+	
+	/*
+	 * This method is used to find the offset of the bucket in 
+	 * counters. 'counters' array is 1 size longer than bucketUnit,
+	 * hence by default it returns 'bucketUnit.length'
+	 */
+	private int getBucket(long difftime){
+		for(int i=0; i<bucketUnit.length; i++){
+			if(difftime < bucketUnit[i]){
+				return i;
+			}
+		}
+		return bucketUnit.length;
+	}
+	
+	private static boolean isEnabled() {
+		return enabled;
+	}
+	/**
+	 * @author Rich Tabedzki
+	 *  A helper class to pass measured parameter to the counter.
+	 */
+	static class TestSample implements Comparable{
+		private long starttime;
+		private long endtime;
+		
+		public TestSample(long starttime) {
+			this.endtime = System.currentTimeMillis();
+			this.starttime = starttime;
+		}
+		
+		public long getDuration(){
+			return endtime - starttime;
+		}
+
+		public int compareTo(Object o) { 
+			if(o instanceof TestSample){
+				TestSample x = (TestSample)o;
+				if(starttime < x.starttime)
+					return 1;
+				if(endtime < x.endtime)
+					return 1;
+				if(starttime > x.starttime)
+					return -1;
+				if(endtime > x.endtime)
+					return -1;
+				return 0;
+			}
+			return 1;
+		}
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitor.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitor.java
new file mode 100644
index 00000000..c58c9db7
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitor.java
@@ -0,0 +1,237 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.pm;
+
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Observable;
+import java.util.Observer;
+import java.util.SortedSet;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.TreeSet;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.openecomp.sdnc.sli.resource.dblib.DBResourceObserver;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SQLExecutionMonitor extends Observable
+{
+	private static Logger LOGGER = LoggerFactory.getLogger(SQLExecutionMonitor.class);
+	
+	final static long MILISECOND = 1000000L;
+	final static long SECOND = 1000L*MILISECOND;
+	
+	private final Timer timer;
+	// collection
+	private final SortedSet<TestObject> innerSet;
+	private SQLExecutionMonitorObserver parent = null; 
+	private final AtomicLong completionCounter;
+	private boolean activeState = false;
+	private final long interval;
+	private final long initialDelay;
+	private final long EXPECTED_TIME_TO_COMPLETE;
+	private final long UNPROCESSED_FAILOVER_THRESHOLD;
+
+	private final class MonitoringTask extends TimerTask 
+	{
+		
+		public void run() 
+		{
+			try {
+				TestObject testObj = new TestObject();
+				testObj.setStartTime(testObj.getStartTime() - EXPECTED_TIME_TO_COMPLETE);
+
+				// take a snapshot of the current task list
+				TestObject[] array = innerSet.toArray(new TestObject[0]);
+				SortedSet<TestObject> copyCurrent = new TreeSet<TestObject>(Arrays.asList(array));
+				// get the list of the tasks that are older than the specified
+				// interval.
+				SortedSet<TestObject> unprocessed = copyCurrent.headSet(testObj);
+
+				long succesfulCount = completionCounter.get();
+				int unprocessedCount = unprocessed.size();
+				
+				if (!unprocessed.isEmpty() && unprocessedCount > UNPROCESSED_FAILOVER_THRESHOLD && succesfulCount == 0)
+				{
+					// switch the Connection Pool to passive
+					setChanged();
+					notifyObservers("Open JDBC requests=" + unprocessedCount+" in "+SQLExecutionMonitor.this.parent.getDbConnectionName());
+				}
+			} catch (Exception exc) {
+				LOGGER.error("", exc);
+			} finally {
+				completionCounter.set(0L);
+			}
+		}
+	}
+
+	public static class TestObject implements Comparable<TestObject>, Serializable 
+	{
+
+		private static final long serialVersionUID = 1L;
+		private long starttime;
+		private long randId;
+
+		public TestObject()
+		{
+			starttime = System.nanoTime();
+		}
+
+		public long getStartTime()
+		{
+			return starttime;
+		}
+
+		public void setStartTime(long newTime) 
+		{
+			starttime = newTime;
+		}
+
+		public int compareTo(TestObject o)
+		{
+			if( this == o)
+				return 0;
+			if(this.starttime > o.getStartTime())
+				return 1;
+			if(this.starttime < o.getStartTime())
+				return -1;
+
+			if(this.hashCode() > o.hashCode())
+				return 1;
+			if(this.hashCode() < o.hashCode())
+				return -1;
+
+			return 0;
+		}
+
+		public String toString()
+		{
+			return Long.toString(starttime)+"#"+ this.hashCode();
+		}
+	
+		public boolean equals(Object obj)
+		{
+			if (this == obj)
+				return true;
+
+			return (obj instanceof TestObject 
+		            && starttime == ((TestObject) obj).getStartTime()
+		            && hashCode() == ((TestObject) obj).hashCode());		
+		}
+	}
+
+	public SQLExecutionMonitor(SQLExecutionMonitorObserver parent)
+	{
+		this.parent = parent;
+		completionCounter = new AtomicLong(0L);
+		interval = parent.getInterval();
+		initialDelay = parent.getInitialDelay();
+		this.UNPROCESSED_FAILOVER_THRESHOLD = parent.getUnprocessedFailoverThreshold();
+		this.EXPECTED_TIME_TO_COMPLETE = parent.getExpectedCompletionTime()*MILISECOND;
+		
+		innerSet = Collections.synchronizedSortedSet(new TreeSet<TestObject>());
+		timer = new Timer();
+	}
+	
+	public void cleanup()
+	{
+		timer.cancel();
+	}
+	
+	// registerRequest
+	public TestObject registerRequest()
+	{
+		if(activeState)
+		{
+			TestObject test = new TestObject();
+			if(innerSet.add(test))
+				return test;
+		}
+		return null;
+	}
+
+	// deregisterSuccessfulReguest
+	public boolean deregisterReguest(TestObject test)
+	{
+		if(test == null)
+			return false;
+		// remove from the collection
+		if(innerSet.remove(test) && activeState)
+		{
+			completionCounter.incrementAndGet();
+			return true;
+		}
+		return false; 
+	}
+
+	public void terminate() {
+		timer.cancel();
+	}
+
+	/**
+	 * @return the parent
+	 */
+	public final Object getParent() {
+		return parent;
+	}
+	
+	public void addObserver(Observer observer)
+	{
+		if(observer instanceof DBResourceObserver)
+		{
+			DBResourceObserver dbObserver = (DBResourceObserver)observer;
+			if(dbObserver.isMonitorDbResponse())
+			{
+				if(countObservers() == 0)
+				{
+					TimerTask remindTask = new MonitoringTask();
+					timer.schedule(remindTask, initialDelay, interval);
+					activeState = true;
+				}
+			}
+		}
+		super.addObserver(observer);
+	}
+	
+	public void deleteObserver(Observer observer)
+	{
+		super.deleteObserver(observer);
+		if(observer instanceof DBResourceObserver)
+		{
+			DBResourceObserver dbObserver = (DBResourceObserver)observer;
+			if(dbObserver.isMonitorDbResponse())
+			{
+				if(countObservers() == 0)
+				{
+					timer.cancel();
+					activeState = false;
+				}
+			}
+		}
+	}
+	
+	public final int getPorcessedConnectionsCount() {
+		return innerSet.size();
+	}
+}
diff --git a/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitorObserver.java b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitorObserver.java
new file mode 100644
index 00000000..1f329750
--- /dev/null
+++ b/dblib/provider/src/main/java/org/openecomp/sdnc/sli/resource/dblib/pm/SQLExecutionMonitorObserver.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdnc.sli.resource.dblib.pm;
+
+public interface SQLExecutionMonitorObserver {
+	public String getDbConnectionName();
+
+	public long getInterval();
+	public void setInterval(long value);
+
+	public long getInitialDelay();
+	public void setInitialDelay(long value);
+
+	public long getExpectedCompletionTime();
+	public void setExpectedCompletionTime(long value);
+
+	public long getUnprocessedFailoverThreshold();
+	public void setUnprocessedFailoverThreshold(long value);
+}
diff --git a/dblib/provider/src/main/resources/dblib.properties b/dblib/provider/src/main/resources/dblib.properties
new file mode 100755
index 00000000..ac295c78
--- /dev/null
+++ b/dblib/provider/src/main/resources/dblib.properties
@@ -0,0 +1,13 @@
+org.openecomp.sdnc.sli.dbtype=jdbc
+org.openecomp.sdnc.sli.jdbc.hosts=sdnctldb01,sdnctldb02
+org.openecomp.sdnc.sli.jdbc.url=jdbc:mysql://DBHOST:3306/sdnctl
+org.openecomp.sdnc.sli.jdbc.database=sdnctl
+org.openecomp.sdnc.sli.jdbc.user={user for sdnctl}
+org.openecomp.sdnc.sli.jdbc.password={password for sdnctl}
+org.openecomp.sdnc.sli.jdbc.connection.name=sdnctldb01
+
+org.openecomp.sdnc.sli.jdbc.connection.timeout=50
+org.openecomp.sdnc.sli.jdbc.request.timeout=100
+org.openecomp.sdnc.sli.jdbc.limit.init=10
+org.openecomp.sdnc.sli.jdbc.limit.min=10
+org.openecomp.sdnc.sli.jdbc.limit.max=20