/**
* 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.activemq.broker.ft;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.URI;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;
import javax.sql.DataSource;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.store.jdbc.DataSourceServiceSupport;
import org.apache.activemq.store.jdbc.JDBCPersistenceAdapter;
import org.apache.activemq.util.IOHelper;
import org.apache.derby.jdbc.EmbeddedDataSource;
public class JDBCQueueMasterSlaveTest extends QueueMasterSlaveTest {
protected DataSource sharedDs;
protected String MASTER_URL = "tcp://localhost:62001";
protected String SLAVE_URL = "tcp://localhost:62002";
protected void setUp() throws Exception {
// startup db
sharedDs = new SyncDataSource((EmbeddedDataSource) DataSourceServiceSupport.createDataSource(IOHelper.getDefaultDataDirectory()));
super.setUp();
}
protected void createMaster() throws Exception {
master = new BrokerService();
master.setBrokerName("master");
master.addConnector(MASTER_URL);
master.setUseJmx(false);
master.setPersistent(true);
master.setDeleteAllMessagesOnStartup(true);
JDBCPersistenceAdapter persistenceAdapter = new JDBCPersistenceAdapter();
persistenceAdapter.setDataSource(getExistingDataSource());
configureJdbcPersistenceAdapter(persistenceAdapter);
master.setPersistenceAdapter(persistenceAdapter);
configureBroker(master);
master.start();
}
protected void configureBroker(BrokerService master) {
}
protected void createSlave() throws Exception {
// use a separate thread as the slave will block waiting for
// the exclusive db lock
Thread t = new Thread() {
public void run() {
try {
BrokerService broker = new BrokerService();
broker.setBrokerName("slave");
TransportConnector connector = new TransportConnector();
connector.setUri(new URI(SLAVE_URL));
broker.addConnector(connector);
// no need for broker.setMasterConnectorURI(masterConnectorURI)
// as the db lock provides the slave/master initialisation
broker.setUseJmx(false);
broker.setPersistent(true);
JDBCPersistenceAdapter persistenceAdapter = new JDBCPersistenceAdapter();
persistenceAdapter.setDataSource(getExistingDataSource());
persistenceAdapter.setCreateTablesOnStartup(false);
broker.setPersistenceAdapter(persistenceAdapter);
configureJdbcPersistenceAdapter(persistenceAdapter);
configureBroker(broker);
broker.start();
slave.set(broker);
slaveStarted.countDown();
} catch (IllegalStateException expectedOnShutdown) {
} catch (Exception e) {
fail("failed to start slave broker, reason:" + e);
}
}
};
t.start();
}
protected void configureJdbcPersistenceAdapter(JDBCPersistenceAdapter persistenceAdapter) throws IOException {
persistenceAdapter.setLockKeepAlivePeriod(500);
persistenceAdapter.getLocker().setLockAcquireSleepInterval(500);
}
protected DataSource getExistingDataSource() throws Exception {
return sharedDs;
}
// prevent concurrent calls from attempting to create the db at the same time
// can result in "already exists in this jvm" errors
class SyncDataSource implements DataSource {
final EmbeddedDataSource delegate;
SyncDataSource(EmbeddedDataSource dataSource) {
this.delegate = dataSource;
}
@Override
public Connection getConnection() throws SQLException {
synchronized (this) {
return delegate.getConnection();
}
}
@Override
public Connection getConnection(String username, String password) throws SQLException {
synchronized (this) {
return delegate.getConnection();
}
}
@Override
public PrintWriter getLogWriter() throws SQLException {
return null;
}
@Override
public void setLogWriter(PrintWriter out) throws SQLException {
}
@Override
public void setLoginTimeout(int seconds) throws SQLException {
}
@Override
public int getLoginTimeout() throws SQLException {
return 0;
}
@Override
public <T> T unwrap(Class<T> iface) throws SQLException {
return null;
}
@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
return false;
}
EmbeddedDataSource getDelegate() {
return delegate;
}
public Logger getParentLogger() throws SQLFeatureNotSupportedException {
return null;
}
};
}