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/*-
* ============LICENSE_START=======================================================
* OpenECOMP - org.openecomp.dmaapbc
* ================================================================================
* 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=========================================================
*/
package org.openecomp.dmaapbc.database;
import java.io.*;
import java.sql.*;
import org.apache.log4j.Logger;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.openecomp.dmaapbc.logging.DmaapbcLogMessageEnum;
public class LoadSchema {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(LoadSchema.class);
private static final EELFLogger appLogger = EELFManager.getInstance().getApplicationLogger();
private static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
private static final EELFLogger debugLogger = EELFManager.getInstance().getDebugLogger();
private static final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
private static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
static int getVer(Statement s) throws SQLException {
ResultSet rs = null;
try {
rs = s.executeQuery("SELECT version FROM dmaapbc_sch_ver");
rs.next();
return(rs.getInt(1));
} finally {
if (rs != null) {
rs.close();
}
}
}
static void upgrade() throws SQLException {
ConnectionFactory cf = ConnectionFactory.getDefaultInstance();
Connection c = null;
Statement stmt = null;
InputStream is = null;
try {
c = cf.get(true);
stmt = c.createStatement();
int newver = -1;
try {
newver = getVer(stmt);
} catch (Exception e) {}
logger.info("Database schema currently at version " + newver++);
while ((is = LoadSchema.class.getClassLoader().getResourceAsStream("schema_" + newver + ".sql")) != null) {
logger.info("Upgrading database schema to version " + newver);
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String s;
String sofar = null;
while ((s = br.readLine()) != null) {
logger.info("SCHEMA: " + s);
s = s.trim();
if (s.length() == 0 || s.startsWith("--")) {
continue;
}
if (sofar == null) {
sofar = s;
} else {
sofar = sofar + " " + s;
}
if (s.endsWith(";")) {
sofar = sofar.substring(0, sofar.length() - 1);
boolean ignore = false;
if (sofar.startsWith("@")) {
ignore = true;
sofar = sofar.substring(1).trim();
}
try {
stmt.execute(sofar);
} catch (SQLException sqle) {
if (!ignore) {
throw sqle;
}
}
sofar = null;
}
}
is.close();
is = null;
if (getVer(stmt) != newver) {
throw new SQLException("Schema version not properly updated to " + newver + " by upgrade script");
}
logger.info("Upgrade to database schema version " + newver + " successful");
newver++;
}
} catch (IOException ioe) {
throw new SQLException(ioe);
} finally {
if (stmt != null) { try { stmt.close(); } catch (Exception e) {}}
if (c != null) { try { c.close(); } catch (Exception e) {}}
}
}
public static void main(String[] args) throws Exception {
upgrade();
}
}
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