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/*
*
* 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.qpid.testkit;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Random;
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.qpid.client.AMQAnyDestination;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.tools.MessageFactory;
/**
* A generic sender which sends a stream of messages
* to a given address in a broker (host/port)
* until told to stop by killing it.
*
* It has a feedback loop to ensure it doesn't fill
* up queues due to a slow consumer.
*
* It doesn't check for correctness or measure anything
* leaving those concerns to another entity.
* However it prints a timestamp every x secs(-Dreport_frequency)
* as checkpoint to figure out how far the test has progressed if
* a failure occurred.
*
* It also takes in an optional Error handler to
* pass out any error in addition to writing them to std err.
*
* This is intended more as building block to create
* more complex test cases. However there is a main method
* provided to use this standalone.
*
* The following options are available and configurable
* via jvm args.
*
* msg_size (256)
* msg_count (10) - # messages before waiting for feedback
* sleep_time (1000 ms) - sleep time btw each iteration
* report_frequency - how often a timestamp is printed
* durable
* transacted
* tx_size - size of transaction batch in # msgs.
*/
public class Sender extends Client
{
protected int msg_size = 256;
protected int msg_count = 10;
protected int iterations = -1;
protected long sleep_time = 1000;
protected Destination dest = null;
protected Destination replyTo = null;
protected DateFormat df = new SimpleDateFormat("yyyy.MM.dd 'at' HH:mm:ss");
protected NumberFormat nf = new DecimalFormat("##.00");
protected MessageProducer producer;
Random gen = new Random(19770905);
public Sender(Connection con,String addr) throws Exception
{
super(con);
this.msg_size = Integer.getInteger("msg_size", 100);
this.msg_count = Integer.getInteger("msg_count", 10);
this.iterations = Integer.getInteger("iterations", -1);
this.sleep_time = Long.getLong("sleep_time", 1000);
this.setSsn(con.createSession(isTransacted(),Session.AUTO_ACKNOWLEDGE));
this.dest = new AMQAnyDestination(addr);
this.producer = getSsn().createProducer(dest);
this.replyTo = getSsn().createTemporaryQueue();
System.out.println("Sending messages to : " + addr);
}
/*
* If msg_size not specified it generates a message
* between 500-1500 bytes.
*/
protected Message getNextMessage() throws Exception
{
int s = msg_size == -1 ? 500 + gen.nextInt(1000) : msg_size;
Message msg = (getContentType().equals("text/plain")) ?
MessageFactory.createTextMessage(getSsn(), s):
MessageFactory.createBytesMessage(getSsn(), s);
msg.setJMSDeliveryMode((isDurable()) ? DeliveryMode.PERSISTENT
: DeliveryMode.NON_PERSISTENT);
return msg;
}
public void run()
{
try
{
boolean infinite = (iterations == -1);
for (int x=0; infinite || x < iterations; x++)
{
long now = System.currentTimeMillis();
if (now - getStartTime() >= getReportFrequency())
{
System.out.println(df.format(now) + " - iterations : " + x);
setStartTime(now);
}
for (int i = 0; i < msg_count; i++)
{
Message msg = getNextMessage();
msg.setIntProperty("sequence",i);
producer.send(msg);
if (isTransacted() && msg_count % getTxSize() == 0)
{
getSsn().commit();
}
}
TextMessage m = getSsn().createTextMessage("End");
m.setJMSReplyTo(replyTo);
producer.send(m);
if (isTransacted())
{
getSsn().commit();
}
MessageConsumer feedbackConsumer = getSsn().createConsumer(replyTo);
feedbackConsumer.receive();
feedbackConsumer.close();
if (isTransacted())
{
getSsn().commit();
}
Thread.sleep(sleep_time);
}
}
catch (Exception e)
{
handleError("Exception sending messages",e);
}
}
// Receiver host port address
public static void main(String[] args) throws Exception
{
String host = "127.0.0.1";
int port = 5672;
String addr = "message_queue";
if (args.length > 0)
{
host = args[0];
}
if (args.length > 1)
{
port = Integer.parseInt(args[1]);
}
if (args.length > 2)
{
addr = args[2];
}
AMQConnection con = new AMQConnection(
"amqp://username:password@topicClientid/test?brokerlist='tcp://"
+ host + ":" + port + "'");
Sender sender = new Sender(con,addr);
sender.run();
}
}
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