| /* |
| * |
| * 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.soak; |
| |
| |
| import java.util.Random; |
| import java.util.UUID; |
| |
| 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.AMQQueue; |
| import org.apache.qpid.framing.AMQShortString; |
| |
| /** |
| * Test Description |
| * ================ |
| * This test will send n-1 messages, followed by the n-th |
| * message which contains "End" in it's payload to signal |
| * that this is the last message message in the sequence. |
| * The end message has the feedback queue as it's replyTo. |
| * It will then listen on the feedback queue waiting for the |
| * confirmation and then sleeps for 1000 ms before proceeding |
| * with the next n messages. |
| * |
| * This hand shaking mechanism ensures that all of the |
| * messages sent are consumed by some consumer. This prevents |
| * the producers from saturating the broker especially when |
| * the consumers are slow. |
| * |
| * It creates a producer per session. |
| * If session_count is > 1 it will round robin the messages |
| * btw the producers. |
| * |
| * All producers send to a single destination |
| * |
| */ |
| |
| public class SimpleProducer extends BaseTest |
| { |
| protected Destination feedbackQueue; |
| Random gen = new Random(); |
| |
| public SimpleProducer() |
| { |
| super(); |
| } |
| |
| protected Message getNextMessage() |
| { |
| if (msg_size == -1) |
| { |
| int index = gen.nextInt(1000); |
| return msgArray[index]; |
| } |
| else |
| { |
| return msgArray[0]; |
| } |
| } |
| |
| public void test() |
| { |
| try |
| { |
| Session[] sessions = new Session[session_count]; |
| MessageProducer[] prods = new MessageProducer[session_count]; |
| |
| for (int i = 0; i < session_count; i++) |
| { |
| sessions[i] = con.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| prods[i] = sessions[i].createProducer(dest); |
| } |
| |
| // this will ensure that the producer will not overun the consumer. |
| feedbackQueue = new AMQQueue(new AMQShortString("amq.direct"), |
| new AMQShortString(UUID.randomUUID().toString()), |
| new AMQShortString("control")); |
| |
| MessageConsumer feedbackConsumer = sessions[0].createConsumer(feedbackQueue); |
| |
| int prod_pointer = 0; |
| boolean multi_session = session_count > 1 ? true : false; |
| |
| while (true) |
| { |
| for (int i = 0; i < msg_count - 1; i++) |
| { |
| Message msg = getNextMessage(); |
| msg.setJMSTimestamp(System.currentTimeMillis()); |
| prods[prod_pointer].send(msg); |
| if (multi_session) |
| { |
| prod_pointer++; |
| if (prod_pointer == session_count) |
| { |
| prod_pointer = 0; |
| } |
| } |
| } |
| |
| TextMessage m = sessions[0].createTextMessage("End"); |
| m.setJMSReplyTo(feedbackQueue); |
| prods[prod_pointer].send(m); |
| System.out.println(df.format(System.currentTimeMillis())); |
| feedbackConsumer.receive(); |
| Thread.sleep(1000); |
| } |
| } |
| catch (Exception e) |
| { |
| handleError(e,"Exception while setting up the producer"); |
| } |
| |
| } |
| |
| public static void main(String[] args) |
| { |
| SimpleProducer test = new SimpleProducer(); |
| test.setUp(); |
| test.test(); |
| } |
| |
| } |