ActiveMQ example source code file (JMSInputStreamTest.java)

This example ActiveMQ source code file (JMSInputStreamTest.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

activemqinputstream, activemqinputstream, atomicboolean, datainputstream, dataoutputstream, exception, exception, io, ioexception, map, object, object, string, string, thread, util

The ActiveMQ JMSInputStreamTest.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.streams;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;

import junit.framework.Test;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQInputStream;
import org.apache.activemq.JmsTestSupport;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;

/**
 * JMSInputStreamTest
 */
public class JMSInputStreamTest extends JmsTestSupport {

    public Destination destination;
    protected DataOutputStream out;
    protected DataInputStream in;
    private ActiveMQConnection connection2;

    private ActiveMQInputStream amqIn;

    
    public static Test suite() {
        return suite(JMSInputStreamTest.class);
    }

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public void initCombos() {
        addCombinationValues("destination", new Object[] {new ActiveMQQueue("TEST.QUEUE"), new ActiveMQTopic("TEST.TOPIC")});
    }

    /*
     * @see TestCase#setUp()
     */
    protected void setUp() throws Exception {
        super.setAutoFail(true);
        super.setUp();
    }

    /**
     * Setup connection and streams
     * 
     * @param props
     * @throws JMSException
     */
    private void setUpConnection(Map<String, Object> props, long timeout) throws JMSException {
        connection2 = (ActiveMQConnection)factory.createConnection(userName, password);
        connections.add(connection2);
        OutputStream amqOut;
        if (props != null) {
            amqOut = connection.createOutputStream(destination, props, Message.DEFAULT_DELIVERY_MODE, Message.DEFAULT_PRIORITY, Message.DEFAULT_TIME_TO_LIVE);
        } else {
            amqOut = connection.createOutputStream(destination);
        }
        out = new DataOutputStream(amqOut);
        if (timeout == -1) {
            amqIn = (ActiveMQInputStream) connection2.createInputStream(destination);
        } else {
            amqIn = (ActiveMQInputStream) connection2.createInputStream(destination, null, false, timeout);
        }
        in = new DataInputStream(amqIn);
    }
    /*
     * @see TestCase#tearDown()
     */
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    /**
     * Test for AMQ-3010
     */
    public void testInputStreamTimeout() throws Exception {
        long timeout = 500;
        
        setUpConnection(null, timeout);
        try {
            in.read();
            fail();
        } catch (ActiveMQInputStream.ReadTimeoutException e) {
            // timeout reached, everything ok
        }
        in.close();
        
    }

    // Test for AMQ-2988
    public void testStreamsWithProperties() throws Exception {
        String name1 = "PROPERTY_1";
        String name2 = "PROPERTY_2";
        String value1 = "VALUE_1";
        String value2 = "VALUE_2";
        Map<String,Object> jmsProperties = new HashMap();
        jmsProperties.put(name1, value1);
        jmsProperties.put(name2, value2);
        setUpConnection(jmsProperties, -1);
        
        out.writeInt(4);
        out.flush();
        assertTrue(in.readInt() == 4);
        out.writeFloat(2.3f);
        out.flush();
        assertTrue(in.readFloat() == 2.3f);
        String str = "this is a test string";
        out.writeUTF(str);
        out.flush();
        assertTrue(in.readUTF().equals(str));
        for (int i = 0; i < 100; i++) {
            out.writeLong(i);
        }
        out.flush();
     
        // check properties before we try to read the stream
        checkProperties(jmsProperties);
        
        for (int i = 0; i < 100; i++) {
            assertTrue(in.readLong() == i);
        }
        
        // check again after read was done
        checkProperties(jmsProperties);
    }
    
    // check if the received stream has the properties set
    // Test for AMQ-2988
    private void checkProperties(Map<String, Object> jmsProperties) throws IOException {
        Map<String, Object> receivedJmsProps = amqIn.getJMSProperties();
        
        // we should at least have the same amount or more properties
        assertTrue(jmsProperties.size() <= receivedJmsProps.size());
        

        // check the properties to see if we have everything in there
        Iterator<String>  propsIt = jmsProperties.keySet().iterator();
        while(propsIt.hasNext()) {
            String key = propsIt.next();
            assertTrue(receivedJmsProps.containsKey(key));
            assertEquals(jmsProperties.get(key), receivedJmsProps.get(key));
        }
    }
    
    public void testLarge() throws Exception {
        setUpConnection(null, -1);
        
        final int testData = 23;
        final int dataLength = 4096;
        final int count = 1024;
        byte[] data = new byte[dataLength];
        for (int i = 0; i < data.length; i++) {
            data[i] = testData;
        }
        final AtomicBoolean complete = new AtomicBoolean(false);
        Thread runner = new Thread(new Runnable() {
            public void run() {
                try {
                    for (int x = 0; x < count; x++) {
                        byte[] b = new byte[2048];
                        in.readFully(b);
                        for (int i = 0; i < b.length; i++) {
                            assertTrue(b[i] == testData);
                        }
                    }
                    complete.set(true);
                    synchronized (complete) {
                        complete.notify();
                    }
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
            }
        });
        runner.start();
        for (int i = 0; i < count; i++) {
            out.write(data);
        }
        out.flush();
        synchronized (complete) {
            if (!complete.get()) {
                complete.wait(30000);
            }
        }
        assertTrue(complete.get());
    }
    
    public void testStreams() throws Exception {
        setUpConnection(null, -1);
        out.writeInt(4);
        out.flush();
        assertTrue(in.readInt() == 4);
        out.writeFloat(2.3f);
        out.flush();
        assertTrue(in.readFloat() == 2.3f);
        String str = "this is a test string";
        out.writeUTF(str);
        out.flush();
        assertTrue(in.readUTF().equals(str));
        for (int i = 0; i < 100; i++) {
            out.writeLong(i);
        }
        out.flush();
        
        for (int i = 0; i < 100; i++) {
            assertTrue(in.readLong() == i);
        }
    }
}