/**
 *
 * Copyright 2005-2006 The Apache Software Foundation
 *
 * Licensed 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.test;

import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

/**
 * @version $Revision: 1.2 $
 */
public class JmsSendReceiveTestSupport extends TestSupport implements MessageListener {
    private static final org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory
            .getLog(JmsSendReceiveTestSupport.class);
    
    protected int messageCount = 100;
    protected String[] data;
    protected Session session;
    protected Session consumeSession;
    protected MessageConsumer consumer;
    protected MessageProducer producer;
    protected Destination consumerDestination;
    protected Destination producerDestination;
    protected List messages = createConcurrentList();
    protected boolean topic = true;
    protected boolean durable = false;
    protected int deliveryMode = DeliveryMode.PERSISTENT;
    protected final Object lock = new Object();
    protected boolean verbose = false;
    protected boolean useSeparateSession = false;
    protected boolean largeMessages = false;
    protected int largeMessageLoopSize = 4 * 1024;

    /*
     * @see junit.framework.TestCase#setUp()
     */
    protected void setUp() throws Exception {
        super.setUp();
        String temp = System.getProperty("messageCount");
        
        if (temp != null) {
            int i = Integer.parseInt(temp);
            if (i > 0) {
                messageCount = i;
            }
        }
        
        log.info("Message count for test case is: " + messageCount);
        data = new String[messageCount];
        
        for (int i = 0; i < messageCount; i++) {
            data[i] = createMessageText(i);
        }
    }


    protected String createMessageText(int i) {
        if (largeMessages) {
            return createMessageBodyText();
        }
        else {
            return "Text for message: " + i + " at " + new Date();
        }
    }

    protected String createMessageBodyText() {
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < largeMessageLoopSize; i++) {
            buffer.append("0123456789");
        }
        return buffer.toString();
    }

    /**
     * Test if all the messages sent are being received.  
     * 
     * @throws Exception
     */
    public void testSendReceive() throws Exception {
        messages.clear();
        
        Thread.sleep(1000);
        for (int i = 0; i < data.length; i++) {
            Message message = session.createTextMessage(data[i]);
            if (verbose) {
                log.info("About to send a message: " + message + " with text: " + data[i]);
            }
            
            producer.send(producerDestination, message);
        }
        
        assertMessagesAreReceived();
        log.info("" + data.length + " messages(s) received, closing down connections");
    }

    /**
     * Waits to receive the messages and performs the test if all messages have been received and 
     * are in sequential order.  
     * 
     * @throws JMSException
     */
    protected void assertMessagesAreReceived() throws JMSException {
        waitForMessagesToBeDelivered();
        assertMessagesReceivedAreValid(messages);
    }

    /**
     * Tests if the messages have all been received and are in sequential order. 
     * 
     * @param receivedMessages
     * @throws JMSException
     */
    protected void assertMessagesReceivedAreValid(List receivedMessages) throws JMSException {
        List copyOfMessages = Arrays.asList(receivedMessages.toArray());
        int counter = 0;
        
        if (data.length != copyOfMessages.size()) {
            for (Iterator iter = copyOfMessages.iterator(); iter.hasNext();) {
                TextMessage message = (TextMessage) iter.next();
                log.info("<== " + counter++ + " = " + message.getText());
            }
        }
        
        assertEquals("Not enough messages received", data.length, receivedMessages.size());
        
        for (int i = 0; i < data.length; i++) {
        	TextMessage received = (TextMessage) receivedMessages.get(i);
            String text = received.getText();
        
            if (verbose) {
                log.info("Received Text: " + text);
            }
            
            assertEquals("Message: " + i, data[i], text);
        }
    }

    /**
     * Waits for the messages to be delivered or when the wait time has been reached. 
     */
    protected void waitForMessagesToBeDelivered() {
        long maxWaitTime = 60000;
        long waitTime = maxWaitTime;
        long start = (maxWaitTime <= 0) ? 0 : System.currentTimeMillis();
        
        synchronized (lock) {
            while (messages.size() < data.length && waitTime >= 0) {
                try {
                    lock.wait(200);
                }
                catch (InterruptedException e) {
                    e.printStackTrace();
                }
                
                waitTime = maxWaitTime - (System.currentTimeMillis() - start);
            }
        }
    }


    /**
     * @see javax.jms.MessageListener#onMessage(javax.jms.Message)
     */
    public synchronized void onMessage(Message message) {
        consumeMessage(message, messages);
    }

    /**
     * Consumes a received message.
     * 
     * @param message - a newly received message. 
     * @param messageList - list containing the received messages. 
     */
    protected void consumeMessage(Message message, List messageList) {
        if (verbose) {
            log.info("Received message: " + message);
        }
       
        messageList.add(message);
       
        if (messageList.size() >= data.length) {
            synchronized (lock) {
                lock.notifyAll();
            }
        }
    }

    /**
     * Creates a synchronized list. 
     * 
     * @return a synchronized view of the specified list.
     */
    protected List createConcurrentList() {
        return Collections.synchronizedList(new ArrayList());
    }
}
@@ -3313,32 +3313,61 @@
 rows Exception %7B
+%0A%0A        Thread.sleep(1000);
 %0A        message
@@ -3390,36 +3390,8 @@
    %0A
-        Thread.sleep(1000);%0A
     

clear the list after the sleep so that any left over messages are drained.