Package

Source Code of RequesterTool

/**
*
* 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.
*/
import java.util.Arrays;
import java.util.Date;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.util.IndentPrinter;

/**
* A simple tool for publishing messages
*
* @version $Revision: 1.2 $
*/
public class RequesterTool {

  private int messageCount = 10;
  private long sleepTime = 0L;
  private boolean verbose = true;
  private int messageSize = 255;
  private long timeToLive;
  private String subject = "TOOL.DEFAULT";
  private String replySubject;
  private boolean topic = false;
  private String user = ActiveMQConnection.DEFAULT_USER;
  private String password = ActiveMQConnection.DEFAULT_PASSWORD;
  private String url = ActiveMQConnection.DEFAULT_BROKER_URL;
  private boolean transacted = false;
  private boolean persistent = false;
  private String clientId;

  private Destination destination;
  private Destination replyDest;
  private MessageProducer producer;
  private MessageConsumer consumer;
  private Session session;

  public static void main(String[] args) {
    RequesterTool requesterTool = new RequesterTool();
    String[] unknonwn = CommnadLineSupport.setOptions(requesterTool, args);
    if (unknonwn.length > 0) {
      System.out.println("Unknown options: " + Arrays.toString(unknonwn));
      System.exit(-1);
    }
    requesterTool.run();
  }

  public void run() {
   
    Connection connection=null;
    try {
     
      System.out.println("Connecting to URL: " + url);
      System.out.println("Publishing a Message with size " + messageSize + " to " + (topic ? "topic" : "queue") + ": " + subject);
      System.out.println("Using " + (persistent ? "persistent" : "non-persistent") + " messages");
      System.out.println("Sleeping between publish " + sleepTime + " ms");
     
      // Create the connection
      ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
      connection = connectionFactory.createConnection();
      if (persistent && clientId != null && clientId.length() > 0 && !"null".equals(clientId)) {
        connection.setClientID(clientId);
      }
      connection.start();

      // Create the Session
      session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
     
      // And the Destinations..
      if (topic) {
        destination = session.createTopic(subject);
        if( replySubject==null || replySubject.equals("") )
          replyDest = session.createTemporaryTopic();
        else
          replyDest = session.createTopic(replySubject);
      } else {
        destination = session.createQueue(subject);
        if( replySubject==null || replySubject.equals("") )
          replyDest = session.createTemporaryQueue();
        else
          replyDest = session.createQueue(replySubject);
      }
      System.out.println("Reply Destination: " + replyDest);

      // Create the producer
      producer = session.createProducer(destination);
      if (persistent) {
        producer.setDeliveryMode(DeliveryMode.PERSISTENT);
      } else {
        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
      }
      if (timeToLive != 0) {
        System.out.println("Messages time to live " + timeToLive + " ms");
        producer.setTimeToLive(timeToLive);
      }

      // Create the reply consumer
      consumer = session.createConsumer(replyDest);
     
      // Start sending reqests.
      requestLoop();
     
      System.out.println("Done.");
     
      // Use the ActiveMQConnection interface to dump the connection stats.
      ActiveMQConnection c = (ActiveMQConnection) connection;
      c.getConnectionStats().dump(new IndentPrinter());
           
    } catch (Exception e) {
      System.out.println("Caught: " + e);
      e.printStackTrace();
    } finally {
      try {
        connection.close();
      } catch (Throwable ignore) {
      }
    }
  }

  protected void requestLoop() throws Exception {

    for (int i = 0; i < messageCount || messageCount == 0; i++) {

      TextMessage message = session.createTextMessage(createMessageText(i));
      message.setJMSReplyTo(replyDest);

      if (verbose) {
        String msg = message.getText();
        if (msg.length() > 50) {
          msg = msg.substring(0, 50) + "...";
        }
        System.out.println("Sending message: " + msg);
      }

      producer.send(message);
      if (transacted) {
        session.commit();
      }

      System.out.println("Waiting for reponse message...");
      Message message2 = consumer.receive();
      if (message2 instanceof TextMessage) {
        System.out.println("Reponse message: " + ((TextMessage) message2).getText());
      } else {
        System.out.println("Reponse message: " + message2);
      }
      if (transacted) {
        session.commit();
      }

      Thread.sleep(sleepTime);

    }
  }

  /**
   * @param i
   * @return
   */
  private String createMessageText(int index) {
    StringBuffer buffer = new StringBuffer(messageSize);
    buffer.append("Message: " + index + " sent at: " + new Date());
    if (buffer.length() > messageSize) {
      return buffer.substring(0, messageSize);
    }
    for (int i = buffer.length(); i < messageSize; i++) {
      buffer.append(' ');
    }
    return buffer.toString();
  }


  public void setClientId(String clientId) {
    this.clientId = clientId;
  }
  public void setPersistent(boolean durable) {
    this.persistent = durable;
  }
  public void setMessageCount(int messageCount) {
    this.messageCount = messageCount;
  }
  public void setMessageSize(int messageSize) {
    this.messageSize = messageSize;
  }
  public void setPassword(String password) {
    this.password = password;
  }
  public void setSleepTime(long sleepTime) {
    this.sleepTime = sleepTime;
  }
  public void setSubject(String subject) {
    this.subject = subject;
  }
  public void setTimeToLive(long timeToLive) {
    this.timeToLive = timeToLive;
  }
  public void setTopic(boolean topic) {
    this.topic = topic;
  }
  public void setQueue(boolean queue) {
    this.topic = !queue;
 
  public void setTransacted(boolean transacted) {
    this.transacted = transacted;
  }
  public void setUrl(String url) {
    this.url = url;
  }
  public void setUser(String user) {
    this.user = user;
  }
  public void setVerbose(boolean verbose) {
    this.verbose = verbose;
  }
  public void setReplySubject(String replySubject) {
    this.replySubject = replySubject;
  }
}
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