jmsclient.java

基于eclipse环境下开发的servicemix例程

import edu.emory.mathcs.backport.java.util.concurrent.CountDownLatch;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.command.ActiveMQQueue;
import org.logicblaze.lingo.jms.Requestor;
import org.logicblaze.lingo.jms.JmsProducerConfig;
import org.logicblaze.lingo.jms.impl.MultiplexingRequestor;
import edu.emory.mathcs.backport.java.util.concurrent.ExecutorService;
import edu.emory.mathcs.backport.java.util.concurrent.Executors;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.Message;

/**
 * @version $Revision: 500309 $
 */
public class JMSClient implements Runnable {
    
    private static ConnectionFactory factory;
    private static CountDownLatch latch;
    private static Requestor requestor;
    
    /**
     * main ...
     * 
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        System.out.println("Connecting to JMS server.");
        factory = new ActiveMQConnectionFactory("tcp://localhost:61616");
        Destination inQueue = new ActiveMQQueue("demo.org.servicemix.source");
        Destination outQueue = new ActiveMQQueue("demo.org.servicemix.output" + (int)(1000*Math.random()));
        requestor = MultiplexingRequestor.newInstance(factory, new JmsProducerConfig(), inQueue, outQueue); 
        
        if (args.length == 0) {
            new JMSClient().run();
        } else {
            int nb = Integer.parseInt(args[0]);
            int th = 30;
            if (args.length > 1) {
                th = Integer.parseInt(args[1]);
            }
            latch = new CountDownLatch(nb);
            ExecutorService threadPool = Executors.newFixedThreadPool(th);
            for (int i = 0; i < nb; i++) {
                threadPool.submit(new JMSClient());
            }
            latch.await();
        }
        System.out.println("Closing.");
        requestor.close();
    }
    
    public void run() {
        try {
            System.out.println("Sending request.");
            Message out = requestor.getSession().createMapMessage();
            out.setStringProperty("name", "Li Si");
            //out.setStringProperty("ssn", "012-24532-53254");
            //out.setDoubleProperty("amount", Math.random() * 100000);
            //out.setIntProperty("duration", (int) Math.random() * 48);
            Message in = requestor.request(null, out);
            if (in == null) {
                System.out.println("Response timed out.");
            }
            else {
                System.out.println("Response was: rate=" + in.getDoubleProperty("rate") + "% and first paid ratio=" + in.getDoubleProperty("firstPaidRatio")+ " from " + in.getStringProperty("bank"));
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (latch != null) {
                latch.countDown();
            }
        }
    }

}