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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.tuscany.samples.das.tx.manager;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.XAConnection;
import javax.sql.XADataSource;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import org.apache.geronimo.transaction.manager.XidFactory;
import org.apache.geronimo.transaction.manager.XidFactoryImpl;
import org.apache.tuscany.das.rdb.dbconfig.DBConfig;
import org.apache.tuscany.samples.das.databaseSetup.DatabaseSetupUtil;
import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;
public class GeronimoTransactionManagerUtil {
private GeronimoTransactionManagerService service;
private static XADataSource xads;
private static XAConnection xaconn = null;
private static XAResource xares = null;
private static XidFactory xidFact = null;
private static Xid xid = null;
public void initTransactionManager() {
// Get a transction manager
try {
xidFact = new XidFactoryImpl();
// creates an instance of Geronimo TM Service
service = new GeronimoTransactionManagerService();
service.init();
service.begin();
initDataSource();
initXAConnection();
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
private void initDataSource() {
//setup XADataSource
xads = new MysqlXADataSource();
try {
DBConfig dbcfg = DatabaseSetupUtil.getDBConfig();
((MysqlXADataSource) xads).setUser(dbcfg.getConnectionInfo().getConnectionProperties().getUserName());
((MysqlXADataSource) xads).setPassword(dbcfg.getConnectionInfo().getConnectionProperties().getPassword());
((MysqlXADataSource) xads).setUrl(dbcfg.getConnectionInfo().getConnectionProperties().getDatabaseURL());
((MysqlXADataSource) xads).setURL(dbcfg.getConnectionInfo().getConnectionProperties().getDatabaseURL());
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
private void initXAConnection() throws SQLException{
DBConfig dbcfg = DatabaseSetupUtil.getDBConfig();
xaconn = xads.getXAConnection(dbcfg.getConnectionInfo().getConnectionProperties().getUserName(),
dbcfg.getConnectionInfo().getConnectionProperties().getPassword());
}
public void startTransaction() throws Exception {
try{
//create XAResource
xid= xidFact.createXid();
xares = xaconn.getXAResource();
xares.setTransactionTimeout(250); //something
xares.start(xid, XAResource.TMNOFLAGS);
return;
}catch(Exception e) {
e.printStackTrace();
throw e;
}
}
public void commitTransaction() throws Exception {
xares.end(xid, XAResource.TMSUCCESS);
xares.prepare(xid);
xares.commit(xid, false); //onePhase=true/false
}
public void rollbackTransaction() throws Exception {
xares.end(xid, XAResource.TMFAIL);
xares.prepare(xid);
xares.rollback(xid);
}
public Connection getConnection() throws SQLException {
return xaconn.getConnection();
}
/**
* cleanup
*/
public void cleanup() throws Exception{
xaconn.close();
xid = null;
xares = null;
xaconn = null;
xads = null;
service.commit();
}
}
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