ActiveMQ example source code file (JDBCXACommitExceptionTest.java)

This example ActiveMQ source code file (JDBCXACommitExceptionTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

activemqxaconnectionfactory, activemqxaconnectionfactory, bytearrayoutputstream, bytearrayoutputstream, caught, dataoutputstream, exception, exception, io, ioexception, jdbc, jdbccommitexceptiontest, sql, util, xaexception, xasession, xid, xid

The ActiveMQ JDBCXACommitExceptionTest.java source code

/**
 * 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.store.jdbc;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Properties;

import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.XAConnection;
import javax.jms.XASession;
import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;

import org.apache.activemq.ActiveMQXAConnectionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import junit.framework.TestCase;

// https://issues.apache.org/activemq/browse/AMQ-2880
public class JDBCXACommitExceptionTest extends JDBCCommitExceptionTest {
    private static final Logger LOG = LoggerFactory.getLogger(JDBCXACommitExceptionTest.class);

    private long txGenerator = System.currentTimeMillis();

    protected ActiveMQXAConnectionFactory factory = new ActiveMQXAConnectionFactory(
            "tcp://localhost:61616?jms.prefetchPolicy.all=0&jms.redeliveryPolicy.maximumRedeliveries="+messagesExpected); 

    boolean onePhase = true;

    public void testTwoPhaseSqlException() throws Exception {
        onePhase = false;
        doTestSqlException();
    }

    @Override
    protected int receiveMessages(int messagesExpected) throws Exception {
        XAConnection connection = factory.createXAConnection();
        connection.start();
        XASession session = connection.createXASession();

        jdbc.setShouldBreak(true);

        // first try and receive these messages, they'll continually fail
        receiveMessages(messagesExpected, session, onePhase);

        jdbc.setShouldBreak(false);

        // now that the store is sane, try and get all the messages sent
        return receiveMessages(messagesExpected, session, onePhase);
    }

    protected int receiveMessages(int messagesExpected, XASession session, boolean onePhase) throws Exception {
        int messagesReceived = 0;

        for (int i=0; i<messagesExpected; i++) {
            Destination destination = session.createQueue("TEST");
            MessageConsumer consumer = session.createConsumer(destination);

            XAResource resource = session.getXAResource();
            resource.recover(XAResource.TMSTARTRSCAN);
            resource.recover(XAResource.TMNOFLAGS);

            Xid tid = createXid();

            Message message = null;
            try {
                LOG.debug("Receiving message " + (messagesReceived+1) + " of " + messagesExpected);
                resource.start(tid, XAResource.TMNOFLAGS);
                message = consumer.receive(2000);
                LOG.info("Received : " + message);
                resource.end(tid, XAResource.TMSUCCESS);
                if (message != null) {
                    if (onePhase) {
                        resource.commit(tid, true);
                    } else {
                        resource.prepare(tid);
                        resource.commit(tid, false);
                    }
                    messagesReceived++;
                }
            } catch (Exception e) {
                LOG.debug("Caught exception:", e);

                try {
                    LOG.debug("Rolling back transaction (just in case, no need to do this as it is implicit in a 1pc commit failure) " + tid);
                    resource.rollback(tid);
                }
                catch (XAException ex) {
                    try {
                        LOG.debug("Caught exception during rollback: " + ex + " forgetting transaction " + tid);
                        resource.forget(tid);
                    }
                    catch (XAException ex1) {
                        LOG.debug("rollback/forget failed: " + ex1.errorCode);
                    }
                }
            } finally {
                if (consumer != null) {
                    consumer.close();
                }
            }
        }
        return messagesReceived;
    }

    public Xid createXid() throws IOException {
        
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream os = new DataOutputStream(baos);
        os.writeLong(++txGenerator);
        os.close();
        final byte[] bs = baos.toByteArray();

        return new Xid() {
            public int getFormatId() {
                return 86;
            }

            public byte[] getGlobalTransactionId() {
                return bs;
            }

            public byte[] getBranchQualifier() {
                return bs;
            }
        };

    }


}