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/*******************************************************************************
* =============LICENSE_START=========================================================
*
* =================================================================================
* Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*******************************************************************************/
package org.onap.ecomp.persistence;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.json.JSONObject;
import org.onap.ecomp.main.APIHConfig;
import org.postgresql.ds.PGPoolingDataSource;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
public class APIHDBSource {
final static EELFLogger logger = EELFManager.getInstance().getLogger(APIHDBSource.class);
private static final String PG_DRIVER = "org.postgresql.Driver";
private static JSONObject configObject = new JSONObject();
private static PGPoolingDataSource dbsource = null;
private static APIHDBSource apihDBSource = null;
public APIHDBSource() {
try {
Class.forName(PG_DRIVER);
configObject = APIHConfig.getInstance().getConfigObject();
dbsource = new PGPoolingDataSource();
dbsource.setDataSourceName("postgresql");
dbsource.setServerName(configObject.optString("postgres_ip"));
dbsource.setPortNumber(configObject.optInt("postgres_port"));
dbsource.setDatabaseName(configObject.optString("postgres_db_name"));
dbsource.setUser(configObject.optString("postgres_db_user"));
dbsource.setPassword(configObject.optString("postgres_db_passwd"));
dbsource.setMaxConnections(configObject.optInt("postgres_db_max_conn"));
} catch (Exception e) {
logException(e);
}
}
private void logException(Exception e) {
StringWriter stack = new StringWriter();
e.printStackTrace(new PrintWriter(stack));
logger.info(stack.toString());
}
public static APIHDBSource getInstance(){
if(apihDBSource == null)
apihDBSource= new APIHDBSource();
return apihDBSource;
}
public Connection getConnection() throws Exception {
return dbsource.getConnection();
}
public void close(Connection con) {
if (con != null) {
try {
con.close();
}
catch (SQLException e) {
logException(e);
}
}
}
public void close(Statement st) {
if (st != null) {
try {
st.close();
}
catch (SQLException e) {
logException(e);
}
}
}
public void close(ResultSet rs) {
if (rs != null) {
try {
rs.close();
}
catch (SQLException e) {
logException(e);
}
}
}
public void rollback(Connection con) {
if (con != null) {
try {
con.rollback();
} catch (SQLException e) {
logException(e);
}
}
}
}
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