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ActiveMQ example source code file (TransactionContextTest.java)

This example ActiveMQ source code file (TransactionContextTest.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

a, activemqconnectionfactory, atomicinteger, atomicinteger, b, exception, exception, override, override, synchronization, synchronization, test, transactioncontext, transactionrolledbackexception

The ActiveMQ TransactionContextTest.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;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.util.concurrent.atomic.AtomicInteger;

import javax.jms.TransactionRolledBackException;

import org.apache.activemq.transaction.Synchronization;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class TransactionContextTest {
    
    TransactionContext underTest;
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
    ActiveMQConnection connection;
    
    
    @Before
    public void setup() throws Exception {
        connection = factory.createActiveMQConnection();
        underTest = new TransactionContext(connection);
    }
    
    @After
    public void tearDown() throws Exception {
        connection.close();
    }
    
    @Test
    public void testSyncBeforeEndCalledOnceOnRollback() throws Exception {
        final AtomicInteger beforeEndCountA = new AtomicInteger(0);
        final AtomicInteger beforeEndCountB = new AtomicInteger(0);
        final AtomicInteger rollbackCountA = new AtomicInteger(0);
        final AtomicInteger rollbackCountB = new AtomicInteger(0);
        underTest.addSynchronization(new Synchronization() {
            @Override
            public void beforeEnd() throws Exception {
                if (beforeEndCountA.getAndIncrement() == 0) {
                    throw new TransactionRolledBackException("force rollback");
                }
            }

            @Override
            public void afterCommit() throws Exception {
                fail("exepcted rollback exception");
            }

            @Override
            public void afterRollback() throws Exception {
                rollbackCountA.incrementAndGet();
            }
            
        });
        
        underTest.addSynchronization(new Synchronization() {
            @Override
            public void beforeEnd() throws Exception {
                beforeEndCountB.getAndIncrement();
            }
            
            @Override     
            public void afterCommit() throws Exception {
                fail("exepcted rollback exception");
            }

            @Override
            public void afterRollback() throws Exception {
                rollbackCountB.incrementAndGet();
            }

        });
        
        
        try {
            underTest.commit();
            fail("exepcted rollback exception");
        } catch (TransactionRolledBackException expected) {
        }
        
        assertEquals("beforeEnd A called once", 1, beforeEndCountA.get());
        assertEquals("beforeEnd B called once", 1, beforeEndCountA.get());
        assertEquals("rollbackCount B 0", 1, rollbackCountB.get());
        assertEquals("rollbackCount A B", rollbackCountA.get(), rollbackCountB.get());
    }
    
    @Test
    public void testSyncIndexCleared() throws Exception {
        final AtomicInteger beforeEndCountA = new AtomicInteger(0);
        final AtomicInteger rollbackCountA = new AtomicInteger(0);
        Synchronization sync = new Synchronization() {
            @Override
            public void beforeEnd() throws Exception {
                beforeEndCountA.getAndIncrement();
            }
            @Override
            public void afterCommit() throws Exception {
                fail("exepcted rollback exception");
            }
            @Override
            public void afterRollback() throws Exception {
                rollbackCountA.incrementAndGet();
            } 
        };
        
        underTest.begin();
        underTest.addSynchronization(sync);
        underTest.rollback();
        
        assertEquals("beforeEnd", 1, beforeEndCountA.get());
        assertEquals("rollback", 1, rollbackCountA.get());
     
        // do it again
        underTest.begin();
        underTest.addSynchronization(sync);
        underTest.rollback();
     
        assertEquals("beforeEnd", 2, beforeEndCountA.get());
        assertEquals("rollback", 2, rollbackCountA.get());
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ TransactionContextTest.java source code file:

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