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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.requestreply;
+
+import org.apache.log4j.Logger;
+import org.apache.log4j.NDC;
+
+import org.apache.qpid.test.framework.TestUtils;
+
+import org.apache.qpid.junit.extensions.BatchedThrottle;
+import org.apache.qpid.junit.extensions.Throttle;
+import org.apache.qpid.junit.extensions.util.CommandLineParser;
+import org.apache.qpid.junit.extensions.util.ParsedProperties;
+
+import javax.jms.*;
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.naming.NamingException;
+
+import java.io.*;
+import java.net.InetAddress;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.SynchronousQueue;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * PingPongProducer is a client that sends test messages, and waits for replies to these messages. The replies may
+ * either be generated by another client (see {@link PingPongBouncer}, or an extension of it may be used that listens
+ * to its own messages and does not send replies (see {@link org.apache.qpid.ping.PingClient}). The intention of ping
+ * pong producer is that it is a swiss-army knife test client that makes almost every aspect of its behaviour
+ * configurable.
+ *
+ * <p/>The pings are sent with a reply-to field set to a single temporary queue, which is the same for all pings. This
+ * means that this class has to do some work to correlate pings with pongs; it expectes the original message correlation
+ * id in the ping to be bounced back in the reply correlation id.
+ *
+ * <p/>This ping tool accepts a vast number of configuration options, all of which are passed in to the constructor. It
+ * can ping topics or queues; ping multiple destinations; do persistent pings; send messages of any size; do pings within
+ * transactions; control the number of pings to send in each transaction; limit its sending rate; and perform failover
+ * testing. A complete list of accepted parameters, default values and comments on their usage is provided here:
+ *
+ * <p/><table><caption>Parameters</caption>
+ * <tr><th> Parameter <th> Default <th> Comments
+ * <tr><td> messageSize <td> 0 <td> Message size in bytes. Not including any headers.
+ * <tr><td> destinationName <td> ping <td> The root name to use to generate destination names to ping.
+ * <tr><td> persistent <td> false <td> Determines whether peristent delivery is used.
+ * <tr><td> transacted <td> false <td> Determines whether messages are sent/received in transactions.
+ * <tr><td> broker <td> tcp://localhost:5672 <td> Determines the broker to connect to.
+ * <tr><td> virtualHost <td> test <td> Determines the virtual host to send all ping over.
+ * <tr><td> rate <td> 0 <td> The maximum rate (in hertz) to send messages at. 0 means no limit.
+ * <tr><td> verbose <td> false <td> The verbose flag for debugging. Prints to console on every message.
+ * <tr><td> pubsub <td> false <td> Whether to ping topics or queues. Uses p2p by default.
+ * <tr><td> failAfterCommit <td> false <td> Whether to prompt user to kill broker after a commit batch.
+ * <tr><td> failBeforeCommit <td> false <td> Whether to prompt user to kill broker before a commit batch.
+ * <tr><td> failAfterSend <td> false <td> Whether to prompt user to kill broker after a send.
+ * <tr><td> failBeforeSend <td> false <td> Whether to prompt user to kill broker before a send.
+ * <tr><td> failOnce <td> true <td> Whether to prompt for failover only once.
+ * <tr><td> username <td> guest <td> The username to access the broker with.
+ * <tr><td> password <td> guest <td> The password to access the broker with.
+ * <tr><td> selector <td> null <td> Not used. Defines a message selector to filter pings with.
+ * <tr><td> destinationCount <td> 1 <td> The number of destinations to send pings to.
+ * <tr><td> numConsumers <td> 1 <td> The number of consumers on each destination.
+ * <tr><td> timeout <td> 30000 <td> In milliseconds. The timeout to stop waiting for replies.
+ * <tr><td> commitBatchSize <td> 1 <td> The number of messages per transaction in transactional mode.
+ * <tr><td> uniqueDests <td> true <td> Whether each receivers only listens to one ping destination or all.
+ * <tr><td> durableDests <td> false <td> Whether or not durable destinations are used.
+ * <tr><td> ackMode <td> AUTO_ACK <td> The message acknowledgement mode. Possible values are:
+ * 0 - SESSION_TRANSACTED
+ * 1 - AUTO_ACKNOWLEDGE
+ * 2 - CLIENT_ACKNOWLEDGE
+ * 3 - DUPS_OK_ACKNOWLEDGE
+ * 257 - NO_ACKNOWLEDGE
+ * 258 - PRE_ACKNOWLEDGE
+ * <tr><td> consTransacted <td> false <td> Whether or not consumers use transactions. Defaults to the same value
+ * as the 'transacted' option if not seperately defined.
+ * <tr><td> consAckMode <td> AUTO_ACK <td> The message acknowledgement mode for consumers. Defaults to the same
+ * value as 'ackMode' if not seperately defined.
+ * <tr><td> maxPending <td> 0 <td> The maximum size in bytes, of messages sent but not yet received.
+ * Limits the volume of messages currently buffered on the client
+ * or broker. Can help scale test clients by limiting amount of buffered
+ * data to avoid out of memory errors.
+ * </table>
+ *
+ * <p/>This implements the Runnable interface with a run method that implements an infinite ping loop. The ping loop
+ * does all its work through helper methods, so that code wishing to run a ping-pong cycle is not forced to do so by
+ * starting a new thread. The command line invocation does take advantage of this ping loop. A shutdown hook is also
+ * registered to terminate the ping-pong loop cleanly.
+ *
+ * <p/><table id="crc"><caption>CRC Card</caption>
+ * <tr><th> Responsibilities <th> Collaborations
+ * <tr><td> Provide a ping and wait for all responses cycle.
+ * <tr><td> Provide command line invocation to loop the ping cycle on a configurable broker url.
+ * </table>
+ *
+ * @todo Use read/write lock in the onmessage, not for reading writing but to make use of a shared and exlcusive lock pair.
+ * Obtain read lock on all messages, before decrementing the message count. At the end of the on message method add a
+ * block that obtains the write lock for the very last message, releases any waiting producer. Means that the last
+ * message waits until all other messages have been handled before releasing producers but allows messages to be
+ * processed concurrently, unlike the current synchronized block.
+ */
+public class PingPongProducer implements Runnable, ExceptionListener
+{
+ /** Used for debugging. */
+ private static final Logger log = Logger.getLogger(PingPongProducer.class);
+
+ /** Holds the name of the property to determine whether of not client id is overridden at connection time. */
+ public static final String OVERRIDE_CLIENT_ID_PROPNAME = "overrideClientId";
+
+ /** Holds the default value of the override client id flag. */
+ public static final String OVERRIDE_CLIENT_ID_DEAFULT = "false";
+
+ /** Holds the name of the property to define the JNDI factory name with. */
+ public static final String FACTORY_NAME_PROPNAME = "factoryName";
+
+ /** Holds the default JNDI name of the connection factory. */
+ public static final String FACTORY_NAME_DEAFULT = "local";
+
+ /** Holds the name of the property to set the JNDI initial context properties with. */
+ public static final String FILE_PROPERTIES_PROPNAME = "properties";
+
+ /** Holds the default file name of the JNDI initial context properties. */
+ public static final String FILE_PROPERTIES_DEAFULT = "perftests.properties";
+
+ /** Holds the name of the property to get the test message size from. */
+ public static final String MESSAGE_SIZE_PROPNAME = "messageSize";
+
+ /** Used to set up a default message size. */
+ public static final int MESSAGE_SIZE_DEAFULT = 0;
+
+ /** Holds the name of the property to get the ping queue name from. */
+ public static final String PING_QUEUE_NAME_PROPNAME = "destinationName";
+
+ /** Holds the name of the default destination to send pings on. */
+ public static final String PING_QUEUE_NAME_DEFAULT = "ping";
+
+ /** Holds the name of the property to get the queue name postfix from. */
+ public static final String QUEUE_NAME_POSTFIX_PROPNAME = "queueNamePostfix";
+
+ /** Holds the default queue name postfix value. */
+ public static final String QUEUE_NAME_POSTFIX_DEFAULT = "";
+
+ /** Holds the name of the property to get the test delivery mode from. */
+ public static final String PERSISTENT_MODE_PROPNAME = "persistent";
+
+ /** Holds the message delivery mode to use for the test. */
+ public static final boolean PERSISTENT_MODE_DEFAULT = false;
+
+ /** Holds the name of the property to get the test transactional mode from. */
+ public static final String TRANSACTED_PROPNAME = "transacted";
+
+ /** Holds the transactional mode to use for the test. */
+ public static final boolean TRANSACTED_DEFAULT = false;
+
+ /** Holds the name of the property to get the test consumer transacted mode from. */
+ public static final String CONSUMER_TRANSACTED_PROPNAME = "consTransacted";
+
+ /** Holds the consumer transactional mode default setting. */
+ public static final boolean CONSUMER_TRANSACTED_DEFAULT = false;
+
+ /** Holds the name of the property to get the test broker url from. */
+ public static final String BROKER_PROPNAME = "broker";
+
+ /** Holds the default broker url for the test. */
+ public static final String BROKER_DEFAULT = "tcp://localhost:5672";
+
+ /** Holds the name of the property to get the test broker virtual path. */
+ public static final String VIRTUAL_HOST_PROPNAME = "virtualHost";
+
+ /** Holds the default virtual path for the test. */
+ public static final String VIRTUAL_HOST_DEFAULT = "";
+
+ /** Holds the name of the property to get the message rate from. */
+ public static final String RATE_PROPNAME = "rate";
+
+ /** Defines the default rate (in pings per second) to send pings at. 0 means as fast as possible, no restriction. */
+ public static final int RATE_DEFAULT = 0;
+
+ /** Holds the name of the property to get the verbose mode proeprty from. */
+ public static final String VERBOSE_PROPNAME = "verbose";
+
+ /** Holds the default verbose mode. */
+ public static final boolean VERBOSE_DEFAULT = false;
+
+ /** Holds the name of the property to get the p2p or pub/sub messaging mode from. */
+ public static final String PUBSUB_PROPNAME = "pubsub";
+
+ /** Holds the pub/sub mode default, true means ping a topic, false means ping a queue. */
+ public static final boolean PUBSUB_DEFAULT = false;
+
+ /** Holds the name of the property to get the fail after commit flag from. */
+ public static final String FAIL_AFTER_COMMIT_PROPNAME = "failAfterCommit";
+
+ /** Holds the default failover after commit test flag. */
+ public static final boolean FAIL_AFTER_COMMIT_DEFAULT = false;
+
+ /** Holds the name of the proeprty to get the fail before commit flag from. */
+ public static final String FAIL_BEFORE_COMMIT_PROPNAME = "failBeforeCommit";
+
+ /** Holds the default failover before commit test flag. */
+ public static final boolean FAIL_BEFORE_COMMIT_DEFAULT = false;
+
+ /** Holds the name of the proeprty to get the fail after send flag from. */
+ public static final String FAIL_AFTER_SEND_PROPNAME = "failAfterSend";
+
+ /** Holds the default failover after send test flag. */
+ public static final boolean FAIL_AFTER_SEND_DEFAULT = false;
+
+ /** Holds the name of the property to get the fail before send flag from. */
+ public static final String FAIL_BEFORE_SEND_PROPNAME = "failBeforeSend";
+
+ /** Holds the default failover before send test flag. */
+ public static final boolean FAIL_BEFORE_SEND_DEFAULT = false;
+
+ /** Holds the name of the property to get the fail once flag from. */
+ public static final String FAIL_ONCE_PROPNAME = "failOnce";
+
+ /** The default failover once flag, true means only do one failover, false means failover on every commit cycle. */
+ public static final boolean FAIL_ONCE_DEFAULT = true;
+
+ /** Holds the name of the property to get the broker access username from. */
+ public static final String USERNAME_PROPNAME = "username";
+
+ /** Holds the default broker log on username. */
+ public static final String USERNAME_DEFAULT = "guest";
+
+ /** Holds the name of the property to get the broker access password from. */
+ public static final String PASSWORD_PROPNAME = "password";
+
+ /** Holds the default broker log on password. */
+ public static final String PASSWORD_DEFAULT = "guest";
+
+ /** Holds the name of the proeprty to get the. */
+ public static final String SELECTOR_PROPNAME = "selector";
+
+ /** Holds the default message selector. */
+ public static final String SELECTOR_DEFAULT = "";
+
+ /** Holds the name of the property to get the destination count from. */
+ public static final String DESTINATION_COUNT_PROPNAME = "destinationCount";
+
+ /** Defines the default number of destinations to ping. */
+ public static final int DESTINATION_COUNT_DEFAULT = 1;
+
+ /** Holds the name of the property to get the number of consumers per destination from. */
+ public static final String NUM_CONSUMERS_PROPNAME = "numConsumers";
+
+ /** Defines the default number consumers per destination. */
+ public static final int NUM_CONSUMERS_DEFAULT = 1;
+
+ /** Holds the name of the property to get the waiting timeout for response messages. */
+ public static final String TIMEOUT_PROPNAME = "timeout";
+
+ /** Default time to wait before assuming that a ping has timed out. */
+ public static final long TIMEOUT_DEFAULT = 30000;
+
+ /** Holds the name of the property to get the commit batch size from. */
+ public static final String TX_BATCH_SIZE_PROPNAME = "commitBatchSize";
+
+ /** Defines the default number of pings to send in each transaction when running transactionally. */
+ public static final int TX_BATCH_SIZE_DEFAULT = 1;
+
+ /** Holds the name of the property to get the unique destinations flag from. */
+ public static final String UNIQUE_DESTS_PROPNAME = "uniqueDests";
+
+ /** Defines the default value for the unique destinations property. */
+ public static final boolean UNIQUE_DESTS_DEFAULT = true;
+
+ /** Holds the name of the property to get the durable destinations flag from. */
+ public static final String DURABLE_DESTS_PROPNAME = "durableDests";
+
+ /** Defines the default value of the durable destinations flag. */
+ public static final boolean DURABLE_DESTS_DEFAULT = false;
+
+ /** Holds the name of the proeprty to get the message acknowledgement mode from. */
+ public static final String ACK_MODE_PROPNAME = "ackMode";
+
+ /** Defines the default message acknowledgement mode. */
+ public static final int ACK_MODE_DEFAULT = Session.AUTO_ACKNOWLEDGE;
+
+ /** Holds the name of the property to get the consumers message acknowledgement mode from. */
+ public static final String CONSUMER_ACK_MODE_PROPNAME = "consAckMode";
+
+ /** Defines the default consumers message acknowledgement mode. */
+ public static final int CONSUMER_ACK_MODE_DEFAULT = Session.AUTO_ACKNOWLEDGE;
+
+ /** Holds the name of the property to get the maximum pending message size setting from. */
+ public static final String MAX_PENDING_PROPNAME = "maxPending";
+
+ /** Defines the default value for the maximum pending message size setting. 0 means no limit. */
+ public static final int MAX_PENDING_DEFAULT = 0;
+
+ /** Defines the default prefetch size to use when consuming messages. */
+ public static final int PREFETCH_DEFAULT = 100;
+
+ /** Defines the default value of the no local flag to use when consuming messages. */
+ public static final boolean NO_LOCAL_DEFAULT = false;
+
+ /** Defines the default value of the exclusive flag to use when consuming messages. */
+ public static final boolean EXCLUSIVE_DEFAULT = false;
+
+ /** Holds the name of the property to store nanosecond timestamps in ping messages with. */
+ public static final String MESSAGE_TIMESTAMP_PROPNAME = "timestamp";
+
+ /** Holds the name of the property to get the number of message to prefill the broker with before starting the main test. */
+ public static final String PREFILL_PROPNAME = "preFill";
+
+ /** Defines the default value for the number of messages to prefill. 0,default, no messages. */
+ public static final int PREFILL_DEFAULT = 0;
+
+ /** Holds the name of the property to get the delay to wait in ms before starting the main test after having prefilled. */
+ public static final String DELAY_BEFORE_CONSUME_PROPNAME = "delayBeforeConsume";
+
+ /** Defines the default value for delay in ms to wait before starting thet test run. 0,default, no delay. */
+ public static final long DELAY_BEFORE_CONSUME = 0;
+
+ /** Holds the name of the property to get when no messasges should be sent. */
+ public static final String CONSUME_ONLY_PROPNAME = "consumeOnly";
+
+ /** Defines the default value of the consumeOnly flag to use when publishing messages is not desired. */
+ public static final boolean CONSUME_ONLY_DEFAULT = false;
+
+ /** Holds the name of the property to get when no messasges should be sent. */
+ public static final String SEND_ONLY_PROPNAME = "sendOnly";
+
+ /** Defines the default value of the consumeOnly flag to use when publishing messages is not desired. */
+ public static final boolean SEND_ONLY_DEFAULT = false;
+
+ /** Holds the default configuration properties. */
+ public static ParsedProperties defaults = new ParsedProperties();
+
+ static
+ {
+ defaults.setPropertyIfNull(OVERRIDE_CLIENT_ID_PROPNAME, OVERRIDE_CLIENT_ID_DEAFULT);
+ defaults.setPropertyIfNull(FILE_PROPERTIES_PROPNAME, FILE_PROPERTIES_DEAFULT);
+ defaults.setPropertyIfNull(FACTORY_NAME_PROPNAME, FACTORY_NAME_DEAFULT);
+ defaults.setPropertyIfNull(BROKER_PROPNAME, BROKER_DEFAULT);
+ defaults.setPropertyIfNull(USERNAME_PROPNAME, USERNAME_DEFAULT);
+ defaults.setPropertyIfNull(PASSWORD_PROPNAME, PASSWORD_DEFAULT);
+ defaults.setPropertyIfNull(VIRTUAL_HOST_PROPNAME, VIRTUAL_HOST_DEFAULT);
+ defaults.setPropertyIfNull(PING_QUEUE_NAME_PROPNAME, PING_QUEUE_NAME_DEFAULT);
+ defaults.setPropertyIfNull(QUEUE_NAME_POSTFIX_PROPNAME, QUEUE_NAME_POSTFIX_DEFAULT);
+ defaults.setPropertyIfNull(SELECTOR_PROPNAME, SELECTOR_DEFAULT);
+ defaults.setPropertyIfNull(TRANSACTED_PROPNAME, TRANSACTED_DEFAULT);
+ defaults.setPropertyIfNull(CONSUMER_TRANSACTED_PROPNAME, CONSUMER_TRANSACTED_DEFAULT);
+ defaults.setPropertyIfNull(PERSISTENT_MODE_PROPNAME, PERSISTENT_MODE_DEFAULT);
+ defaults.setPropertyIfNull(ACK_MODE_PROPNAME, ACK_MODE_DEFAULT);
+ defaults.setPropertyIfNull(CONSUMER_ACK_MODE_PROPNAME, CONSUMER_ACK_MODE_DEFAULT);
+ defaults.setPropertyIfNull(MESSAGE_SIZE_PROPNAME, MESSAGE_SIZE_DEAFULT);
+ defaults.setPropertyIfNull(VERBOSE_PROPNAME, VERBOSE_DEFAULT);
+ defaults.setPropertyIfNull(PUBSUB_PROPNAME, PUBSUB_DEFAULT);
+ defaults.setPropertyIfNull(UNIQUE_DESTS_PROPNAME, UNIQUE_DESTS_DEFAULT);
+ defaults.setPropertyIfNull(DURABLE_DESTS_PROPNAME, DURABLE_DESTS_DEFAULT);
+ defaults.setPropertyIfNull(FAIL_BEFORE_COMMIT_PROPNAME, FAIL_BEFORE_COMMIT_DEFAULT);
+ defaults.setPropertyIfNull(FAIL_AFTER_COMMIT_PROPNAME, FAIL_AFTER_COMMIT_DEFAULT);
+ defaults.setPropertyIfNull(FAIL_BEFORE_SEND_PROPNAME, FAIL_BEFORE_SEND_DEFAULT);
+ defaults.setPropertyIfNull(FAIL_AFTER_SEND_PROPNAME, FAIL_AFTER_SEND_DEFAULT);
+ defaults.setPropertyIfNull(FAIL_ONCE_PROPNAME, FAIL_ONCE_DEFAULT);
+ defaults.setPropertyIfNull(TX_BATCH_SIZE_PROPNAME, TX_BATCH_SIZE_DEFAULT);
+ defaults.setPropertyIfNull(DESTINATION_COUNT_PROPNAME, DESTINATION_COUNT_DEFAULT);
+ defaults.setPropertyIfNull(NUM_CONSUMERS_PROPNAME, NUM_CONSUMERS_DEFAULT);
+ defaults.setPropertyIfNull(RATE_PROPNAME, RATE_DEFAULT);
+ defaults.setPropertyIfNull(TIMEOUT_PROPNAME, TIMEOUT_DEFAULT);
+ defaults.setPropertyIfNull(MAX_PENDING_PROPNAME, MAX_PENDING_DEFAULT);
+ defaults.setPropertyIfNull(PREFILL_PROPNAME, PREFILL_DEFAULT);
+ defaults.setPropertyIfNull(DELAY_BEFORE_CONSUME_PROPNAME, DELAY_BEFORE_CONSUME);
+ defaults.setPropertyIfNull(CONSUME_ONLY_PROPNAME, CONSUME_ONLY_DEFAULT);
+ defaults.setPropertyIfNull(SEND_ONLY_PROPNAME, SEND_ONLY_DEFAULT);
+ }
+
+ /** Allows setting of client ID on the connection, rather than through the connection URL. */
+ protected boolean _overrideClientId;
+
+ /** Holds the JNDI name of the JMS connection factory. */
+ protected String _factoryName;
+
+ /** Holds the name of the properties file to configure JNDI with. */
+ protected String _fileProperties;
+
+ /** Holds the broker url. */
+ protected String _brokerDetails;
+
+ /** Holds the username to access the broker with. */
+ protected String _username;
+
+ /** Holds the password to access the broker with. */
+ protected String _password;
+
+ /** Holds the virtual host on the broker to run the tests through. */
+ protected String _virtualpath;
+
+ /** Holds the root name from which to generate test destination names. */
+ protected String _destinationName;
+
+ /** Holds the default queue name postfix value. */
+ protected String _queueNamePostfix;
+
+ /** Holds the message selector to filter the pings with. */
+ protected String _selector;
+
+ /** Holds the producers transactional mode flag. */
+ protected boolean _transacted;
+
+ /** Holds the consumers transactional mode flag. */
+ protected boolean _consTransacted;
+
+ /** Determines whether this producer sends persistent messages. */
+ protected boolean _persistent;
+
+ /** Holds the acknowledgement mode used for the producers. */
+ protected int _ackMode;
+
+ /** Holds the acknowledgement mode setting for the consumers. */
+ protected int _consAckMode;
+
+ /** Determines what size of messages this producer sends. */
+ protected int _messageSize;
+
+ /** Used to indicate that the ping loop should print out whenever it pings. */
+ protected boolean _verbose;
+
+ /** Flag used to indicate if this is a point to point or pub/sub ping client. */
+ protected boolean _isPubSub;
+
+ /** Flag used to indicate if the destinations should be unique client. */
+ protected boolean _isUnique;
+
+ /** Flag used to indicate that durable destination should be used. */
+ protected boolean _isDurable;
+
+ /** Flag used to indicate that the user should be prompted to terminate a broker, to test failover before a commit. */
+ protected boolean _failBeforeCommit;
+
+ /** Flag used to indicate that the user should be prompted to terminate a broker, to test failover after a commit. */
+ protected boolean _failAfterCommit;
+
+ /** Flag used to indicate that the user should be prompted to terminate a broker, to test failover before a send. */
+ protected boolean _failBeforeSend;
+
+ /** Flag used to indicate that the user should be prompted to terminate a broker, to test failover after a send. */
+ protected boolean _failAfterSend;
+
+ /** Flag used to indicate that failover prompting should only be done on the first commit, not on every commit. */
+ protected boolean _failOnce;
+
+ /** Holds the number of sends that should be performed in every transaction when using transactions. */
+ protected int _txBatchSize;
+
+ /** Holds the number of destinations to ping. */
+ protected int _noOfDestinations;
+
+ /** Holds the number of consumers per destination. */
+ protected int _noOfConsumers;
+
+ /** Holds the maximum send rate in herz. */
+ protected int _rate;
+
+ /**
+ * Holds the size of the maximum amount of pending data that the client should buffer, sending is suspended
+ * if this limit is breached.
+ */
+ protected int _maxPendingSize;
+
+ /**
+ * Holds the number of messages to send during the setup phase, before the clients start consuming.
+ */
+ private Integer _preFill;
+
+ /**
+ * Holds the time in ms to wait after preFilling before starting thet test.
+ */
+ private Long _delayBeforeConsume;
+
+ /**
+ * Holds a boolean value of wither this test should just consume, i.e. skips
+ * sending messages, but still expects to receive the specified number.
+ */
+ private boolean _consumeOnly;
+
+ /**
+ * Holds a boolean value of wither this test should just send, i.e. skips
+ * consuming messages, but still creates clients just doesn't start them.
+ */
+ private boolean _sendOnly;
+
+
+ /** A source for providing sequential unique correlation ids. These will be unique within the same JVM. */
+ private static AtomicLong _correlationIdGenerator = new AtomicLong(0L);
+
+ /** A source for providing sequential unqiue ids for instances of this class to be identifed with. */
+ private static AtomicInteger _instanceIdGenerator = new AtomicInteger(0);
+
+ /** Holds this instances unique id. */
+ private int instanceId;
+
+ /**
+ * Holds a map from message ids to latches on which threads wait for replies. This map is shared accross multiple
+ * ping producers on the same JVM.
+ */
+ private static Map<String, PerCorrelationId> perCorrelationIds =
+ Collections.synchronizedMap(new HashMap<String, PerCorrelationId>());
+
+ /** A convenient formatter to use when time stamping output. */
+ protected static final DateFormat timestampFormatter = new SimpleDateFormat("hh:mm:ss:SS");
+
+ /** Holds the connection for the message producer. */
+ protected Connection _connection;
+
+ /** Holds the consumer connections. */
+ protected Connection[] _consumerConnection;
+
+ /** Holds the controlSession on which ping replies are received. */
+ protected Session[] _consumerSession;
+
+ /** Holds the producer controlSession, needed to create ping messages. */
+ protected Session _producerSession;
+
+ /** Holds the destination where the response messages will arrive. */
+ protected Destination _replyDestination;
+
+ /** Holds the set of destinations that this ping producer pings. */
+ protected List<Destination> _pingDestinations;
+
+ /** Used to restrict the sending rate to a specified limit. */
+ protected Throttle _rateLimiter;
+
+ /** Holds a message listener that this message listener chains all its messages to. */
+ protected ChainedMessageListener _chainedMessageListener = null;
+
+ /**
+ * This id generator is used to generate ids to append to the queue name to ensure that queues can be unique when
+ * creating multiple ping producers in the same JVM.
+ */
+ protected static AtomicInteger _queueJVMSequenceID = new AtomicInteger();
+
+ /**
+ * This id generator is used to generates ids that are only unique within this pinger. Creating multiple pingers
+ * on the same JVM using this id generator will allow them to ping on the same queues.
+ */
+ protected AtomicInteger _queueSharedID = new AtomicInteger();
+
+ /** Used to tell the ping loop when to terminate, it only runs while this is true. */
+ protected boolean _publish = true;
+
+ /** Holds the message producer to send the pings through. */
+ protected MessageProducer _producer;
+
+ /** Holds the message consumer to receive the ping replies through. */
+ protected MessageConsumer[] _consumer;
+
+ /** The prompt to display when asking the user to kill the broker for failover testing. */
+ private static final String KILL_BROKER_PROMPT = "Kill broker now, then press Return.";
+
+ /** Holds the name for this test client to be identified to the broker with. */
+ private String _clientID;
+
+ /** Keeps count of the total messages sent purely for debugging purposes. */
+ private static AtomicInteger numSent = new AtomicInteger();
+
+ /**
+ * Holds a monitor which is used to synchronize sender and receivers threads, where the sender has elected
+ * to wait until the number of unreceived message is reduced before continuing to send. This monitor is a
+ * fair SynchronousQueue becuase that provides fair scheduling, to ensure that all producer threads get an
+ * equal chance to produce messages.
+ */
+ static final SynchronousQueue _sendPauseMonitor = new SynchronousQueue(true);
+
+ /** Keeps a count of the number of message currently sent but not received. */
+ static AtomicInteger _unreceived = new AtomicInteger(0);
+
+ /**
+ * Creates a ping producer with the specified parameters, of which there are many. See the class level comments
+ * for details. This constructor creates a connection to the broker and creates producer and consumer sessions on
+ * it, to send and recieve its pings and replies on.
+ *
+ * @param overrides Properties containing any desired overrides to the defaults.
+ *
+ * @throws Exception Any exceptions are allowed to fall through.
+ */
+ public PingPongProducer(Properties overrides) throws Exception
+ {
+ // log.debug("public PingPongProducer(Properties overrides = " + overrides + "): called");
+ instanceId = _instanceIdGenerator.getAndIncrement();
+
+ // Create a set of parsed properties from the defaults overriden by the passed in values.
+ ParsedProperties properties = new ParsedProperties(defaults);
+ properties.putAll(overrides);
+
+ // Extract the configuration properties to set the pinger up with.
+ _overrideClientId = properties.getPropertyAsBoolean(OVERRIDE_CLIENT_ID_PROPNAME);
+ _factoryName = properties.getProperty(FACTORY_NAME_PROPNAME);
+ _fileProperties = properties.getProperty(FILE_PROPERTIES_PROPNAME);
+ _brokerDetails = properties.getProperty(BROKER_PROPNAME);
+ _username = properties.getProperty(USERNAME_PROPNAME);
+ _password = properties.getProperty(PASSWORD_PROPNAME);
+ _virtualpath = properties.getProperty(VIRTUAL_HOST_PROPNAME);
+ _destinationName = properties.getProperty(PING_QUEUE_NAME_PROPNAME);
+ _queueNamePostfix = properties.getProperty(QUEUE_NAME_POSTFIX_PROPNAME);
+ _selector = properties.getProperty(SELECTOR_PROPNAME);
+ _transacted = properties.getPropertyAsBoolean(TRANSACTED_PROPNAME);
+ _consTransacted = properties.getPropertyAsBoolean(CONSUMER_TRANSACTED_PROPNAME);
+ _persistent = properties.getPropertyAsBoolean(PERSISTENT_MODE_PROPNAME);
+ _messageSize = properties.getPropertyAsInteger(MESSAGE_SIZE_PROPNAME);
+ _verbose = properties.getPropertyAsBoolean(VERBOSE_PROPNAME);
+ _failAfterCommit = properties.getPropertyAsBoolean(FAIL_AFTER_COMMIT_PROPNAME);
+ _failBeforeCommit = properties.getPropertyAsBoolean(FAIL_BEFORE_COMMIT_PROPNAME);
+ _failAfterSend = properties.getPropertyAsBoolean(FAIL_AFTER_SEND_PROPNAME);
+ _failBeforeSend = properties.getPropertyAsBoolean(FAIL_BEFORE_SEND_PROPNAME);
+ _failOnce = properties.getPropertyAsBoolean(FAIL_ONCE_PROPNAME);
+ _txBatchSize = properties.getPropertyAsInteger(TX_BATCH_SIZE_PROPNAME);
+ _noOfDestinations = properties.getPropertyAsInteger(DESTINATION_COUNT_PROPNAME);
+ _noOfConsumers = properties.getPropertyAsInteger(NUM_CONSUMERS_PROPNAME);
+ _rate = properties.getPropertyAsInteger(RATE_PROPNAME);
+ _isPubSub = properties.getPropertyAsBoolean(PUBSUB_PROPNAME);
+ _isUnique = properties.getPropertyAsBoolean(UNIQUE_DESTS_PROPNAME);
+ _isDurable = properties.getPropertyAsBoolean(DURABLE_DESTS_PROPNAME);
+ _ackMode = _transacted ? 0 : properties.getPropertyAsInteger(ACK_MODE_PROPNAME);
+ _consAckMode = _consTransacted ? 0 : properties.getPropertyAsInteger(CONSUMER_ACK_MODE_PROPNAME);
+ _maxPendingSize = properties.getPropertyAsInteger(MAX_PENDING_PROPNAME);
+ _preFill = properties.getPropertyAsInteger(PREFILL_PROPNAME);
+ _delayBeforeConsume = properties.getPropertyAsLong(DELAY_BEFORE_CONSUME_PROPNAME);
+ _consumeOnly = properties.getPropertyAsBoolean(CONSUME_ONLY_PROPNAME);
+ _sendOnly = properties.getPropertyAsBoolean(SEND_ONLY_PROPNAME);
+
+ // Check that one or more destinations were specified.
+ if (_noOfDestinations < 1)
+ {
+ throw new IllegalArgumentException("There must be at least one destination.");
+ }
+
+ // Set up a throttle to control the send rate, if a rate > 0 is specified.
+ if (_rate > 0)
+ {
+ _rateLimiter = new BatchedThrottle();
+ _rateLimiter.setRate(_rate);
+ }
+
+ // Create the connection and message producers/consumers.
+ // establishConnection(true, true);
+ }
+
+ /**
+ * Establishes a connection to the broker and creates message consumers and producers based on the parameters
+ * that this ping client was created with.
+ *
+ * @param producer Flag to indicate whether or not the producer should be set up.
+ * @param consumer Flag to indicate whether or not the consumers should be set up.
+ *
+ * @throws Exception Any exceptions are allowed to fall through.
+ */
+ public void establishConnection(boolean producer, boolean consumer) throws Exception
+ {
+ // log.debug("public void establishConnection(): called");
+
+ // Generate a unique identifying name for this client, based on it ip address and the current time.
+ InetAddress address = InetAddress.getLocalHost();
+ // _clientID = address.getHostName() + System.currentTimeMillis();
+ _clientID = "perftest_" + instanceId;
+
+ // Create a connection to the broker.
+ createConnection(_clientID);
+
+ // Create transactional or non-transactional sessions, based on the command line arguments.
+ _producerSession = _connection.createSession(_transacted, _ackMode);
+
+ _consumerSession = new Session[_noOfConsumers];
+
+ for (int i = 0; i < _noOfConsumers; i++)
+ {
+ _consumerSession[i] = _consumerConnection[i].createSession(_consTransacted, _consAckMode);
+ }
+
+ // Create the destinations to send pings to and receive replies from.
+ if (_noOfConsumers > 0)
+ {
+ _replyDestination = _consumerSession[0].createTemporaryQueue();
+ }
+ createPingDestinations(_noOfDestinations, _selector, _destinationName, _isUnique, _isDurable);
+
+ // Create the message producer only if instructed to.
+ if (producer)
+ {
+ createProducer();
+ }
+
+ // Create the message consumer only if instructed to.
+ if (consumer)
+ {
+ createReplyConsumers(getReplyDestinations(), _selector);
+ }
+ }
+
+ /**
+ * Establishes a connection to the broker, based on the configuration parameters that this ping client was
+ * created with.
+ *
+ * @param clientID The clients identifier.
+ *
+ * @throws JMSException Underlying exceptions allowed to fall through.
+ * @throws NamingException Underlying exceptions allowed to fall through.
+ * @throws IOException Underlying exceptions allowed to fall through.
+ */
+ protected void createConnection(String clientID) throws JMSException, NamingException, IOException
+ {
+ // _log.debug("protected void createConnection(String clientID = " + clientID + "): called");
+
+ // _log.debug("Creating a connection for the message producer.");
+ File propsFile = new File(_fileProperties);
+ InputStream is = new FileInputStream(propsFile);
+ Properties properties = new Properties();
+ properties.load(is);
+
+ Context context = new InitialContext(properties);
+ ConnectionFactory factory = (ConnectionFactory) context.lookup(_factoryName);
+ _connection = factory.createConnection(_username, _password);
+
+ if (_overrideClientId)
+ {
+ _connection.setClientID(clientID);
+ }
+
+ // _log.debug("Creating " + _noOfConsumers + " connections for the consumers.");
+
+ _consumerConnection = new Connection[_noOfConsumers];
+
+ for (int i = 0; i < _noOfConsumers; i++)
+ {
+ _consumerConnection[i] = factory.createConnection(_username, _password);
+ // _consumerConnection[i].setClientID(clientID);
+ }
+ }
+
+ /**
+ * Starts a ping-pong loop running from the command line. The bounce back client {@link PingPongBouncer} also needs
+ * to be started to bounce the pings back again.
+ *
+ * @param args The command line arguments.
+ */
+ public static void main(String[] args)
+ {
+ try
+ {
+ Properties options =
+ CommandLineParser.processCommandLine(args, new CommandLineParser(new String[][] {}), System.getProperties());
+
+ // Create a ping producer overriding its defaults with all options passed on the command line.
+ PingPongProducer pingProducer = new PingPongProducer(options);
+ pingProducer.establishConnection(true, true);
+
+ // Start the ping producers dispatch thread running.
+ pingProducer._connection.start();
+
+ // Create a shutdown hook to terminate the ping-pong producer.
+ Runtime.getRuntime().addShutdownHook(pingProducer.getShutdownHook());
+
+ // Ensure that the ping pong producer is registered to listen for exceptions on the connection too.
+ pingProducer._connection.setExceptionListener(pingProducer);
+
+ // Create the ping loop thread and run it until it is terminated by the shutdown hook or exception.
+ Thread pingThread = new Thread(pingProducer);
+ pingThread.run();
+ pingThread.join();
+ }
+ catch (Exception e)
+ {
+ System.err.println(e.getMessage());
+ log.error("Top level handler caught execption.", e);
+ System.exit(1);
+ }
+ }
+
+ /**
+ * Convenience method for a short pause.
+ *
+ * @param sleepTime The time in milliseconds to pause for.
+ */
+ public static void pause(long sleepTime)
+ {
+ if (sleepTime > 0)
+ {
+ try
+ {
+ Thread.sleep(sleepTime);
+ }
+ catch (InterruptedException ie)
+ { }
+ }
+ }
+
+ /**
+ * Gets all the reply destinations (to listen for replies on). In this case this will just be the single reply to
+ * destination of this pinger.
+ *
+ * @return The single reply to destination of this pinger, wrapped in a list.
+ */
+ public List<Destination> getReplyDestinations()
+ {
+ // log.debug("public List<Destination> getReplyDestinations(): called");
+
+ List<Destination> replyDestinations = new ArrayList<Destination>();
+ replyDestinations.add(_replyDestination);
+
+ // log.debug("replyDestinations = " + replyDestinations);
+
+ return replyDestinations;
+ }
+
+ /**
+ * Creates the producer to send the pings on. This is created without a default destination. Its persistent delivery
+ * flag is set accoring the ping producer creation options.
+ *
+ * @throws JMSException Any JMSExceptions are allowed to fall through.
+ */
+ public void createProducer() throws JMSException
+ {
+ // log.debug("public void createProducer(): called");
+
+ _producer = (MessageProducer) _producerSession.createProducer(null);
+ _producer.setDeliveryMode(_persistent ? DeliveryMode.PERSISTENT : DeliveryMode.NON_PERSISTENT);
+
+ // log.debug("Created producer for " + (_persistent ? "persistent" : "non-persistent") + " messages.");
+ }
+
+ /**
+ * Creates consumers for the specified number of destinations. The destinations themselves are also created by this
+ * method.
+ *
+ * @param noOfDestinations The number of destinations to create consumers for.
+ * @param selector The message selector to filter the consumers with.
+ * @param rootName The root of the name, or actual name if only one is being created.
+ * @param unique <tt>true</tt> to make the destinations unique to this pinger, <tt>false</tt> to share the
+ * numbering with all pingers on the same JVM.
+ * @param durable If the destinations are durable topics.
+ *
+ * @throws JMSException Any JMSExceptions are allowed to fall through.
+ */
+ public void createPingDestinations(int noOfDestinations, String selector, String rootName, boolean unique,
+ boolean durable) throws JMSException
+ {
+ /*log.debug("public void createPingDestinations(int noOfDestinations = " + noOfDestinations + ", String selector = "
+ + selector + ", String rootName = " + rootName + ", boolean unique = " + unique + ", boolean durable = "
+ + durable + "): called");*/
+
+ _pingDestinations = new ArrayList<Destination>();
+
+ // Create the desired number of ping destinations and consumers for them.
+ // log.debug("Creating " + noOfDestinations + " destinations to ping.");
+
+ for (int i = 0; i < noOfDestinations; i++)
+ {
+ Destination destination;
+ String id;
+
+ // Generate an id, unique within this pinger or to the whole JVM depending on the unique flag.
+ if (unique)
+ {
+ // log.debug("Creating unique destinations.");
+ id = "_" + _queueJVMSequenceID.incrementAndGet() + "_" + _connection.getClientID();
+ }
+ else
+ {
+ // log.debug("Creating shared destinations.");
+ id = "_" + _queueSharedID.incrementAndGet();
+ }
+
+ // Check if this is a pub/sub pinger, in which case create topics.
+ if (_isPubSub)
+ {
+ destination = _producerSession.createTopic(rootName + id);
+ // log.debug("Created non-durable topic " + destination);
+
+ if (durable)
+ {
+ _producerSession.createDurableSubscriber((Topic) destination, _connection.getClientID());
+ }
+ }
+ // Otherwise this is a p2p pinger, in which case create queues.
+ else
+ {
+ destination = _producerSession.createQueue(rootName + id + _queueNamePostfix);
+ // log.debug("Created queue " + destination);
+ }
+
+ // Keep the destination.
+ _pingDestinations.add(destination);
+ }
+ }
+
+ /**
+ * Creates consumers for the specified destinations and registers this pinger to listen to their messages.
+ *
+ * @param destinations The destinations to listen to.
+ * @param selector A selector to filter the messages with.
+ *
+ * @throws javax.jms.JMSException Any JMSExceptions are allowed to fall through.
+ */
+ public void createReplyConsumers(Collection<Destination> destinations, String selector) throws JMSException
+ {
+ /*log.debug("public void createReplyConsumers(Collection<Destination> destinations = " + destinations
+ + ", String selector = " + selector + "): called");*/
+
+ log.debug("There are " + destinations.size() + " destinations.");
+ log.debug("Creating " + _noOfConsumers + " consumers on each destination.");
+ log.debug("Total number of consumers is: " + (destinations.size() * _noOfConsumers));
+
+ for (Destination destination : destinations)
+ {
+ _consumer = new MessageConsumer[_noOfConsumers];
+
+ // If we don't have consumers then ensure we have created the
+ // destination.
+ if (_noOfConsumers == 0)
+ {
+ _producerSession.createConsumer(destination, selector,
+ NO_LOCAL_DEFAULT).close();
+ }
+
+ for (int i = 0; i < _noOfConsumers; i++)
+ {
+ // Create a consumer for the destination and set this pinger to listen to its messages.
+ _consumer[i] = _consumerSession[i].createConsumer(destination, selector, NO_LOCAL_DEFAULT);
+
+ final int consumerNo = i;
+
+ _consumer[i].setMessageListener(new MessageListener()
+ {
+ public void onMessage(Message message)
+ {
+ onMessageWithConsumerNo(message, consumerNo);
+ }
+ });
+
+ log.debug("Set consumer " + i + " to listen to replies sent to destination: " + destination);
+ }
+ }
+ }
+
+ /**
+ * Stores the received message in the replies map, then resets the boolean latch that a thread waiting for a
+ * correlating reply may be waiting on. This is only done if the reply has a correlation id that is expected in the
+ * replies map.
+ *
+ * @param message The received message.
+ * @param consumerNo The consumer number within this test pinger instance.
+ */
+ public void onMessageWithConsumerNo(Message message, int consumerNo)
+ {
+ // log.debug("public void onMessageWithConsumerNo(Message message, int consumerNo = " + consumerNo + "): called");
+ try
+ {
+ long now = System.nanoTime();
+ long timestamp = getTimestamp(message);
+ long pingTime = now - timestamp;
+
+ // NDC.push("id" + instanceId + "/cons" + consumerNo);
+
+ // Extract the messages correlation id.
+ String correlationID = message.getJMSCorrelationID();
+ // log.debug("correlationID = " + correlationID);
+
+ // int num = message.getIntProperty("MSG_NUM");
+ // log.info("Message " + num + " received.");
+
+ boolean isRedelivered = message.getJMSRedelivered();
+ // log.debug("isRedelivered = " + isRedelivered);
+
+ if (!isRedelivered)
+ {
+ // Countdown on the traffic light if there is one for the matching correlation id.
+ PerCorrelationId perCorrelationId = perCorrelationIds.get(correlationID);
+
+ if (perCorrelationId != null)
+ {
+ CountDownLatch trafficLight = perCorrelationId.trafficLight;
+
+ // Restart the timeout timer on every message.
+ perCorrelationId.timeOutStart = System.nanoTime();
+
+ // log.debug("Reply was expected, decrementing the latch for the id, " + correlationID);
+
+ // Release waiting senders if there are some and using maxPending limit.
+ if ((_maxPendingSize > 0))
+ {
+ // Decrement the count of sent but not yet received messages.
+ int unreceived = _unreceived.decrementAndGet();
+ int unreceivedSize =
+ (unreceived * ((_messageSize == 0) ? 1 : _messageSize))
+ / (_isPubSub ? getConsumersPerDestination() : 1);
+
+ // log.debug("unreceived = " + unreceived);
+ // log.debug("unreceivedSize = " + unreceivedSize);
+
+ // synchronized (_sendPauseMonitor)
+ // {
+ if (unreceivedSize < _maxPendingSize)
+ {
+ _sendPauseMonitor.poll();
+ }
+ // }
+ }
+
+ // Decrement the countdown latch. Before this point, it is possible that two threads might enter this
+ // method simultanesouly with the same correlation id. Decrementing the latch in a synchronized block
+ // ensures that each thread will get a unique value for the remaining messages.
+ long trueCount;
+ long remainingCount;
+
+ synchronized (trafficLight)
+ {
+ trafficLight.countDown();
+
+ trueCount = trafficLight.getCount();
+ remainingCount = trueCount - 1;
+
+ // NDC.push("/rem" + remainingCount);
+
+ // log.debug("remainingCount = " + remainingCount);
+ // log.debug("trueCount = " + trueCount);
+
+ // Commit on transaction batch size boundaries. At this point in time the waiting producer
+ // remains blocked, even on the last message.
+ // Commit count is divided by noOfConsumers in p2p mode, so that each consumer only commits on
+ // each batch boundary. For pub/sub each consumer gets every message so no division is done.
+ // When running in client ack mode, an ack is done instead of a commit, on the commit batch
+ // size boundaries.
+ long commitCount = _isPubSub ? remainingCount : (remainingCount / _noOfConsumers);
+ // _noOfConsumers can be set to 0 on the command line but we will not get here to
+ // divide by 0 as this is executed by the onMessage code when a message is recevied.
+ // no consumers means no message reception.
+
+
+ // log.debug("commitCount = " + commitCount);
+
+ if ((commitCount % _txBatchSize) == 0)
+ {
+ if (_consAckMode == 2)
+ {
+ // log.debug("Doing client ack for consumer " + consumerNo + ".");
+ message.acknowledge();
+ }
+ else
+ {
+ // log.debug("Trying commit for consumer " + consumerNo + ".");
+ commitTx(_consumerSession[consumerNo]);
+ // log.info("Tx committed on consumer " + consumerNo);
+ }
+ }
+
+ // Forward the message and remaining count to any interested chained message listener.
+ if (_chainedMessageListener != null)
+ {
+ _chainedMessageListener.onMessage(message, (int) remainingCount, pingTime);
+ }
+
+ // Check if this is the last message, in which case release any waiting producers. This is done
+ // after the transaction has been committed and any listeners notified.
+ if (trueCount == 1)
+ {
+ trafficLight.countDown();
+ }
+ }
+ }
+ else
+ {
+ log.warn(consumerNo + " Got unexpected message with correlationId: " + correlationID);
+ log.warn(consumerNo + " Map contains:" + perCorrelationIds.entrySet());
+ }
+ }
+ else
+ {
+ log.warn("Got redelivered message, ignoring.");
+ }
+ }
+ catch (JMSException e)
+ {
+ log.warn("There was a JMSException: " + e.getMessage(), e);
+ }
+ finally
+ {
+ // log.debug("public void onMessageWithConsumerNo(Message message, int consumerNo): ending");
+ // NDC.clear();
+ }
+ }
+
+ public void setupCorrelationID(String correlationId, int expectedCount)
+ {
+ PerCorrelationId perCorrelationId = new PerCorrelationId();
+
+ // Create a count down latch to count the number of replies with. This is created before the messages are
+ // sent so that the replies cannot be received before the count down is created.
+ // One is added to this, so that the last reply becomes a special case. The special case is that the
+ // chained message listener must be called before this sender can be unblocked, but that decrementing the
+ // countdown needs to be done before the chained listener can be called.
+ perCorrelationId.trafficLight = new CountDownLatch(expectedCount + 1);
+
+ perCorrelationIds.put(correlationId, perCorrelationId);
+ }
+
+
+ /**
+ * Sends the specified number of ping message and then waits for all correlating replies. If the wait times out
+ * before a reply arrives, then a null reply is returned from this method. This method allows the caller to specify
+ * the correlation id.
+ *
+ * Can be augmented through a pre-fill property (PingPongProducer.PREFILL_PROPNAME) that will populate the destination
+ * with a set number of messages so the total pings sent and therefore expected will be PREFILL + numPings.
+ *
+ * If pre-fill is specified then the consumers will start paused to allow the prefilling to occur.
+ *
+ * @param message The message to send. If this is null, one is generated.
+ * @param numPings The number of ping messages to send.
+ * @param timeout The timeout in milliseconds.
+ * @param messageCorrelationId The message correlation id. If this is null, one is generated.
+ *
+ * @return The number of replies received. This may be less than the number sent if the timeout terminated the wait
+ * for all prematurely. If we are running in noConsumer=0 so send only mode then it will return the no msgs sent.
+ *
+ * @throws JMSException All underlying JMSExceptions are allowed to fall through.
+ * @throws InterruptedException When interrupted by a timeout
+ */
+ public int pingAndWaitForReply(Message message, int numPings, long timeout, String messageCorrelationId)
+ throws JMSException, InterruptedException
+ {
+ return pingAndWaitForReply(message, numPings, 0, timeout, messageCorrelationId);
+ }
+
+ public int pingAndWaitForReply(Message message, int numPings, int preFill, long timeout, String messageCorrelationId)
+ throws JMSException, InterruptedException
+ {
+ /*log.debug("public int pingAndWaitForReply(Message message, int numPings = " + numPings + ", long timeout = "
+ + timeout + ", String messageCorrelationId = " + messageCorrelationId + "): called");*/
+
+ int totalPingsRequested = numPings + preFill;
+
+ // Generate a unique correlation id to put on the messages before sending them, if one was not specified.
+ if (messageCorrelationId == null)
+ {
+ messageCorrelationId = Long.toString(_correlationIdGenerator.incrementAndGet());
+
+ setupCorrelationID(messageCorrelationId, getExpectedNumPings(totalPingsRequested));
+ }
+
+ try
+ {
+ // NDC.push("prod");
+
+ PerCorrelationId perCorrelationId = perCorrelationIds.get(messageCorrelationId);
+
+ // Set up the current time as the start time for pinging on the correlation id. This is used to determine
+ // timeouts.
+ perCorrelationId.timeOutStart = System.nanoTime();
+
+ // Send the specifed number of messages for this test
+ pingNoWaitForReply(message, numPings, messageCorrelationId);
+
+ boolean timedOut;
+ boolean allMessagesReceived;
+ int numReplies;
+
+ // We don't have a consumer so don't try and wait for the messages.
+ // this does mean that if the producerSession is !TXed then we may
+ // get to exit before all msgs have been received.
+ //
+ // Return the number of requested messages, this will let the test
+ // report a pass.
+ if (_noOfConsumers == 0 || _sendOnly)
+ {
+ return getExpectedNumPings(totalPingsRequested);
+ }
+
+ do
+ {
+ // Block the current thread until replies to all the messages are received, or it times out.
+ perCorrelationId.trafficLight.await(timeout, TimeUnit.MILLISECONDS);
+
+ // Work out how many replies were receieved.
+ numReplies = getExpectedNumPings(totalPingsRequested) - (int) perCorrelationId.trafficLight.getCount();
+
+ allMessagesReceived = numReplies == getExpectedNumPings(totalPingsRequested);
+
+ // log.debug("numReplies = " + numReplies);
+ // log.debug("allMessagesReceived = " + allMessagesReceived);
+
+ // Recheck the timeout condition.
+ long now = System.nanoTime();
+ long lastMessageReceievedAt = perCorrelationId.timeOutStart;
+ timedOut = (now - lastMessageReceievedAt) > (timeout * 1000000);
+
+ // log.debug("now = " + now);
+ // log.debug("lastMessageReceievedAt = " + lastMessageReceievedAt);
+ }
+ while (!timedOut && !allMessagesReceived);
+
+ if ((numReplies < getExpectedNumPings(totalPingsRequested)) && _verbose)
+ {
+ log.info("Timed out (" + timeout + " ms) before all replies received on id, " + messageCorrelationId);
+ }
+ else if (_verbose)
+ {
+ log.info("Got all replies on id, " + messageCorrelationId);
+ }
+
+ // commitTx(_consumerSession);
+
+ // log.debug("public int pingAndWaitForReply(Message message, int numPings, long timeout): ending");
+
+ return numReplies;
+ }
+ // Ensure that the message countdown latch is always removed from the reply map. The reply map is long lived,
+ // so will be a memory leak if this is not done.
+ finally
+ {
+ // NDC.pop();
+ perCorrelationIds.remove(messageCorrelationId);
+ }
+ }
+
+ /**
+ * Sends the specified number of ping messages and does not wait for correlating replies.
+ *
+ * @param message The message to send.
+ * @param numPings The number of pings to send.
+ * @param messageCorrelationId A correlation id to place on all messages sent.
+ *
+ * @throws JMSException All underlying JMSExceptions are allowed to fall through.
+ */
+ public void pingNoWaitForReply(Message message, int numPings, String messageCorrelationId) throws JMSException
+ {
+ /*log.debug("public void pingNoWaitForReply(Message message, int numPings = " + numPings
+ + ", String messageCorrelationId = " + messageCorrelationId + "): called");*/
+
+ // If we are runnning a consumeOnly test then don't send any messages
+ if (_consumeOnly)
+ {
+ return;
+ }
+
+ if (message == null)
+ {
+ message = getTestMessage(getReplyDestinations().get(0), _messageSize, _persistent);
+ }
+
+ message.setJMSCorrelationID(messageCorrelationId);
+
+ // Set up a committed flag to detect uncommitted messages at the end of the send loop. This may occurr if the
+ // transaction batch size is not a factor of the number of pings. In which case an extra commit at the end is
+ // needed.
+ boolean committed = false;
+
+ // Send all of the ping messages.
+ for (int i = 0; i < numPings; i++)
+ {
+ // Re-timestamp the message.
+ // message.setLongProperty(MESSAGE_TIMESTAMP_PROPNAME, System.nanoTime());
+
+ // Send the message, passing in the message count.
+ committed = sendMessage(i, message);
+
+ // Spew out per message timings on every message sonly in verbose mode.
+ /*if (_verbose)
+ {
+ log.info(timestampFormatter.format(new Date()) + ": Pinged at with correlation id, " + messageCorrelationId);
+ }*/
+ }
+
+ // Call commit if the send loop finished before reaching a batch size boundary so there may still be uncommitted messages.
+ if (!committed)
+ {
+ commitTx(_producerSession);
+ }
+ }
+
+ /**
+ * Sends the sepcified message, applies rate limiting and possibly commits the current transaction. The count of
+ * messages sent so far must be specified and is used to round robin the ping destinations (where there are more
+ * than one), and to determine if the transaction batch size has been reached and the sent messages should be
+ * committed.
+ *
+ * @param i The count of messages sent so far in a loop of multiple calls to this send method.
+ * @param message The message to send.
+ *
+ * @return <tt>true</tt> if the messages were committed, <tt>false</tt> otherwise.
+ *
+ * @throws JMSException All underlyiung JMSExceptions are allowed to fall through.
+ */
+ protected boolean sendMessage(int i, Message message) throws JMSException
+ {
+ try
+ {
+ NDC.push("id" + instanceId + "/prod");
+
+ // log.debug("protected boolean sendMessage(int i = " + i + ", Message message): called");
+ // log.debug("_txBatchSize = " + _txBatchSize);
+
+ // Round robin the destinations as the messages are sent.
+ Destination destination = _pingDestinations.get(i % _pingDestinations.size());
+
+ // Prompt the user to kill the broker when doing failover testing.
+ _failBeforeSend = waitForUserToPromptOnFailure(_failBeforeSend);
+
+ // Get the test setup for the correlation id.
+ String correlationID = message.getJMSCorrelationID();
+ PerCorrelationId perCorrelationId = perCorrelationIds.get(correlationID);
+
+ // If necessary, wait until the max pending message size comes within its limit.
+ if (_maxPendingSize > 0)
+ {
+ synchronized (_sendPauseMonitor)
+ {
+ // Used to keep track of the number of times that send has to wait.
+ int numWaits = 0;
+
+ // The maximum number of waits before the test gives up and fails. This has been chosen to correspond with
+ // the test timeout.
+ int waitLimit = (int) (TIMEOUT_DEFAULT / 10000);
+
+ while (true)
+ {
+ // Get the size estimate of sent but not yet received messages.
+ int unreceived = _unreceived.get();
+ int unreceivedSize =
+ (unreceived * ((_messageSize == 0) ? 1 : _messageSize))
+ / (_isPubSub ? getConsumersPerDestination() : 1);
+
+ // log.debug("unreceived = " + unreceived);
+ // log.debug("unreceivedSize = " + unreceivedSize);
+ // log.debug("_maxPendingSize = " + _maxPendingSize);
+
+ if (unreceivedSize > _maxPendingSize)
+ {
+ // log.debug("unreceived size estimate over limit = " + unreceivedSize);
+
+ // Fail the test if the send has had to wait more than the maximum allowed number of times.
+ if (numWaits > waitLimit)
+ {
+ String errorMessage =
+ "Send has had to wait for the unreceivedSize (" + unreceivedSize
+ + ") to come below the maxPendingSize (" + _maxPendingSize + ") more that " + waitLimit
+ + " times.";
+ log.warn(errorMessage);
+ throw new RuntimeException(errorMessage);
+ }
+
+ // Wait on the send pause barrier for the limit to be re-established.
+ try
+ {
+ long start = System.nanoTime();
+ // _sendPauseMonitor.wait(10000);
+ _sendPauseMonitor.offer(new Object(), 10000, TimeUnit.MILLISECONDS);
+ long end = System.nanoTime();
+
+ // Count the wait only if it was for > 99% of the requested wait time.
+ if (((float) (end - start) / (float) (10000 * 1000000L)) > 0.99)
+ {
+ numWaits++;
+ }
+ }
+ catch (InterruptedException e)
+ {
+ // Restore the interrupted status
+ Thread.currentThread().interrupt();
+ throw new RuntimeException(e);
+ }
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+ }
+
+ // Send the message either to its round robin destination, or its default destination.
+ // int num = numSent.incrementAndGet();
+ // message.setIntProperty("MSG_NUM", num);
+ setTimestamp(message);
+
+ if (destination == null)
+ {
+ _producer.send(message);
+ }
+ else
+ {
+ _producer.send(destination, message);
+ }
+
+ // Increase the unreceived size, this may actually happen after the message is received.
+ // The unreceived size is incremented by the number of consumers that will get a copy of the message,
+ // in pub/sub mode.
+ if (_maxPendingSize > 0)
+ {
+ int newUnreceivedCount = _unreceived.addAndGet(_isPubSub ? getConsumersPerDestination() : 1);
+ // log.debug("newUnreceivedCount = " + newUnreceivedCount);
+ }
+
+ // Apply message rate throttling if a rate limit has been set up.
+ if (_rateLimiter != null)
+ {
+ _rateLimiter.throttle();
+ }
+
+ // Call commit every time the commit batch size is reached.
+ boolean committed = false;
+
+ // Commit on every transaction batch size boundary. Here i + 1 is the count of actual messages sent.
+ if (((i + 1) % _txBatchSize) == 0)
+ {
+ // log.debug("Trying commit on producer session.");
+ committed = commitTx(_producerSession);
+ }
+
+ return committed;
+ }
+ finally
+ {
+ NDC.clear();
+ }
+ }
+
+ /**
+ * If the specified fail flag is set, this method waits for the user to cause a failure and then indicate to the
+ * test that the failure has occurred, before the method returns.
+ *
+ * @param failFlag The fail flag to test.
+ *
+ * @return The new value for the fail flag. If the {@link #_failOnce} flag is set, then each fail flag is only
+ * used once, then reset.
+ */
+ private boolean waitForUserToPromptOnFailure(boolean failFlag)
+ {
+ if (failFlag)
+ {
+ if (_failOnce)
+ {
+ failFlag = false;
+ }
+
+ // log.debug("Failing Before Send");
+ waitForUser(KILL_BROKER_PROMPT);
+ }
+
+ return failFlag;
+ }
+
+ /**
+ * Implements a single iteration of the ping loop. This sends the number of pings specified by the transaction batch
+ * size property, and waits for replies to all of them. Any errors cause the publish flag to be cleared, which will
+ * terminate the pinger.
+ */
+ public void pingLoop()
+ {
+ try
+ {
+ // Generate a sample message and time stamp it.
+ Message msg = getTestMessage(_replyDestination, _messageSize, _persistent);
+ // setTimestamp(msg);
+
+ // Send the message and wait for a reply.
+ pingAndWaitForReply(msg, TX_BATCH_SIZE_DEFAULT, TIMEOUT_DEFAULT, null);
+ }
+ catch (JMSException e)
+ {
+ _publish = false;
+ // log.debug("There was a JMSException: " + e.getMessage(), e);
+ }
+ catch (InterruptedException e)
+ {
+ _publish = false;
+ // log.debug("There was an interruption: " + e.getMessage(), e);
+ }
+ }
+
+ /**
+ * Sets a chained message listener. The message listener on this pinger, chains all its messages to the one set
+ * here.
+ *
+ * @param messageListener The chained message listener.
+ */
+ public void setChainedMessageListener(ChainedMessageListener messageListener)
+ {
+ _chainedMessageListener = messageListener;
+ }
+
+ /** Removes any chained message listeners from this pinger. */
+ public void removeChainedMessageListener()
+ {
+ _chainedMessageListener = null;
+ }
+
+ /**
+ * Generates a test message of the specified size, with the specified reply-to destination and persistence flag.
+ *
+ * @param replyQueue The reply-to destination for the message.
+ * @param messageSize The desired size of the message in bytes.
+ * @param persistent <tt>true</tt> if the message should use persistent delivery, <tt>false</tt> otherwise.
+ *
+ * @return A freshly generated test message.
+ *
+ * @throws javax.jms.JMSException All underlying JMSException are allowed to fall through.
+ */
+ public Message getTestMessage(Destination replyQueue, int messageSize, boolean persistent) throws JMSException
+ {
+ // return TestMessageFactory.newObjectMessage(_producerSession, replyQueue, messageSize, persistent);
+ return TestUtils.createTestMessageOfSize(_producerSession, messageSize);
+ }
+
+ /**
+ * Sets the current time in nanoseconds as the timestamp on the message.
+ *
+ * @param msg The message to timestamp.
+ *
+ * @throws JMSException Any JMSExceptions are allowed to fall through.
+ */
+ protected void setTimestamp(Message msg) throws JMSException
+ {
+ /*if (((AMQSession)_producerSession).isStrictAMQP())
+ {
+ ((AMQMessage)msg).setTimestampProperty(new AMQShortString(MESSAGE_TIMESTAMP_PROPNAME), System.nanoTime());
+ }
+ else
+ {*/
+ msg.setLongProperty(MESSAGE_TIMESTAMP_PROPNAME, System.nanoTime());
+ // }
+ }
+
+ /**
+ * Extracts the nanosecond timestamp from a message.
+ *
+ * @param msg The message to extract the time stamp from.
+ *
+ * @return The timestamp in nanos.
+ *
+ * @throws JMSException Any JMSExceptions are allowed to fall through.
+ */
+ protected long getTimestamp(Message msg) throws JMSException
+ {
+ /*if (((AMQSession)_producerSession).isStrictAMQP())
+ {
+ Long value = ((AMQMessage)msg).getTimestampProperty(new AMQShortString(MESSAGE_TIMESTAMP_PROPNAME));
+
+ return (value == null) ? 0L : value;
+ }
+ else
+ {*/
+ return msg.getLongProperty(PingPongProducer.MESSAGE_TIMESTAMP_PROPNAME);
+ // }
+ }
+
+ /**
+ * Stops the ping loop by clearing the publish flag. The current loop will complete when it notices that this flag
+ * has been cleared.
+ */
+ public void stop()
+ {
+ _publish = false;
+ }
+
+ /**
+ * Starts the producer and consumer connections.
+ *
+ * @throws JMSException Any JMSExceptions are allowed to fall through.
+ */
+ public void start() throws JMSException
+ {
+ // log.debug("public void start(): called");
+
+ _connection.start();
+ // log.debug("Producer started.");
+
+ for (int i = 0; i < _noOfConsumers; i++)
+ {
+ _consumerConnection[i].start();
+ // log.debug("Consumer " + i + " started.");
+ }
+ }
+
+ /** Implements a ping loop that repeatedly pings until the publish flag becomes false. */
+ public void run()
+ {
+ // Keep running until the publish flag is cleared.
+ while (_publish)
+ {
+ pingLoop();
+ }
+ }
+
+ /**
+ * Callback method, implementing ExceptionListener. This should be registered to listen for exceptions on the
+ * connection, this clears the publish flag which in turn will halt the ping loop.
+ *
+ * @param e The exception that triggered this callback method.
+ */
+ public void onException(JMSException e)
+ {
+ // log.debug("public void onException(JMSException e = " + e + "): called", e);
+ _publish = false;
+ }
+
+ /**
+ * Gets a shutdown hook that will cleanly shut this down when it is running the ping loop. This can be registered
+ * with the runtime system as a shutdown hook.
+ *
+ * @return A shutdown hook for the ping loop.
+ */
+ public Thread getShutdownHook()
+ {
+ return new Thread(new Runnable()
+ {
+ public void run()
+ {
+ stop();
+ }
+ });
+ }
+
+ /**
+ * Closes all of the producer and consumer connections.
+ *
+ * @throws JMSException All JMSException are allowed to fall through.
+ */
+ public void close() throws JMSException
+ {
+ // log.debug("public void close(): called");
+
+ try
+ {
+ if (_connection != null)
+ {
+ // log.debug("Before close producer connection.");
+ _connection.close();
+ // log.debug("Closed producer connection.");
+ }
+
+ for (int i = 0; i < _noOfConsumers; i++)
+ {
+ if (_consumerConnection[i] != null)
+ {
+ // log.debug("Before close consumer connection " + i + ".");
+ _consumerConnection[i].close();
+ // log.debug("Closed consumer connection " + i + ".");
+ }
+ }
+ }
+ finally
+ {
+ _connection = null;
+ _producerSession = null;
+ _consumerSession = null;
+ _consumerConnection = null;
+ _producer = null;
+ _consumer = null;
+ _pingDestinations = null;
+ _replyDestination = null;
+ }
+ }
+
+ /**
+ * Convenience method to commit the transaction on the specified controlSession. If the controlSession to commit on is not a
+ * transactional controlSession, this method does nothing (unless the failover after send flag is set).
+ *
+ * <p/>If the {@link #_failAfterSend} flag is set, this will prompt the user to kill the broker before the commit is
+ * applied. This flag applies whether the pinger is transactional or not.
+ *
+ * <p/>If the {@link #_failBeforeCommit} flag is set, this will prompt the user to kill the broker before the commit
+ * is applied. If the {@link #_failAfterCommit} flag is set, this will prompt the user to kill the broker after the
+ * commit is applied. These flags will only apply if using a transactional pinger.
+ *
+ * @param session The controlSession to commit
+ *
+ * @return <tt>true</tt> if the controlSession was committed, <tt>false</tt> if it was not.
+ *
+ * @throws javax.jms.JMSException If the commit fails and then the rollback fails.
+ *
+ * @todo Consider moving the fail after send logic into the send method. It is confusing to have it in this commit
+ * method, because commits only apply to transactional pingers, but fail after send applied to transactional and
+ * non-transactional alike.
+ */
+ protected boolean commitTx(Session session) throws JMSException
+ {
+ // log.debug("protected void commitTx(Session session): called");
+
+ boolean committed = false;
+
+ _failAfterSend = waitForUserToPromptOnFailure(_failAfterSend);
+
+ if (session.getTransacted())
+ {
+ // log.debug("Session is transacted.");
+
+ try
+ {
+ _failBeforeCommit = waitForUserToPromptOnFailure(_failBeforeCommit);
+
+ long start = System.nanoTime();
+ session.commit();
+ committed = true;
+ // log.debug("Time taken to commit :" + ((System.nanoTime() - start) / 1000000f) + " ms");
+
+ _failAfterCommit = waitForUserToPromptOnFailure(_failAfterCommit);
+
+ // log.debug("Session Commited.");
+ }
+ catch (JMSException e)
+ {
+ // log.debug("JMSException on commit:" + e.getMessage(), e);
+
+ try
+ {
+ session.rollback();
+ // log.debug("Message rolled back.");
+ }
+ catch (JMSException jmse)
+ {
+ // log.debug("JMSE on rollback:" + jmse.getMessage(), jmse);
+
+ // Both commit and rollback failed. Throw the rollback exception.
+ throw jmse;
+ }
+ }
+ }
+
+ return committed;
+ }
+
+ /**
+ * Outputs a prompt to the console and waits for the user to press return.
+ *
+ * @param prompt The prompt to display on the console.
+ */
+ public void waitForUser(String prompt)
+ {
+ System.out.println(prompt);
+
+ try
+ {
+ System.in.read();
+ }
+ catch (IOException e)
+ {
+ // Ignored.
+ }
+
+ System.out.println("Continuing.");
+ }
+
+ /**
+ * Gets the number of consumers that are listening to each destination in the test.
+ *
+ * @return int The number of consumers subscribing to each topic.
+ */
+ public int getConsumersPerDestination()
+ {
+ return _noOfConsumers;
+ }
+
+ /**
+ * Calculates how many pings are expected to be received for the given number sent.
+ *
+ * Note : that if you have set noConsumers to 0 then this will also return 0
+ * in the case of PubSub testing. This is correct as without consumers there
+ * will be no-one to receive the sent messages so they will be unable to respond.
+ *
+ * @param numpings The number of pings that will be sent.
+ *
+ * @return The number that should be received, for the test to pass.
+ */
+ public int getExpectedNumPings(int numpings)
+ {
+ // Wow, I'm freaking sorry about this return here...
+ return ((_failAfterSend || _failBeforeCommit) ? numpings - 1: numpings) *
+ (_isPubSub ? getConsumersPerDestination() : 1);
+ }
+
+ /**
+ * Defines a chained message listener interface that can be attached to this pinger. Whenever this pinger's {@link
+ * PingPongProducer#onMessageWithConsumerNo} method is called, the chained listener set through the {@link
+ * PingPongProducer#setChainedMessageListener} method is passed the message, and the remaining expected count of
+ * messages with that correlation id.
+ *
+ * <p/>Provided only one pinger is producing messages with that correlation id, the chained listener will always be
+ * given unique message counts. It will always be called while the producer waiting for all messages to arrive is
+ * still blocked.
+ */
+ public static interface ChainedMessageListener
+ {
+ /**
+ * Notifies interested listeners about message arrival and important test stats, the number of messages
+ * remaining in the test, and the messages send timestamp.
+ *
+ * @param message The newly arrived message.
+ * @param remainingCount The number of messages left to complete the test.
+ * @param latency The nanosecond latency of the message.
+ *
+ * @throws JMSException Any JMS exceptions is allowed to fall through.
+ */
+ public void onMessage(Message message, int remainingCount, long latency) throws JMSException;
+ }
+
+ /**
+ * Holds information on each correlation id. The countdown latch, the current timeout timer... More stuff to be
+ * added to this: read/write lock to make onMessage more concurrent as described in class header comment.
+ */
+ protected static class PerCorrelationId
+ {
+ /** Holds a countdown on number of expected messages. */
+ CountDownLatch trafficLight;
+
+ /** Holds the last timestamp that the timeout was reset to. */
+ Long timeOutStart;
+ }
+}