ActiveMQCPP version: 3.7.1 AcitveMQBroker version: 5.10.0
Here is a simple example. The code includes both consumer and producer
// START SNIPPET: demo
#include <activemq/library/ActiveMQCPP.h>
#include <decaf/lang/Thread.h>
#include <decaf/lang/Runnable.h>
#include <decaf/util/concurrent/CountDownLatch.h>
#include <decaf/lang/Integer.h>
#include <decaf/lang/Long.h>
#include <decaf/lang/System.h>
#include <activemq/core/ActiveMQConnectionFactory.h>
#include <activemq/util/Config.h>
#include <cms/Connection.h>
#include <cms/Session.h>
#include <cms/TextMessage.h>
#include <cms/BytesMessage.h>
#include <cms/MapMessage.h>
#include <cms/ExceptionListener.h>
#include <cms/MessageListener.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <memory>
#include <decaf/util/Random.h>
using namespace activemq::core;
using namespace decaf::util::concurrent;
using namespace decaf::util;
using namespace decaf::lang;
using namespace cms;
using namespace std;
#define QUEUE_NAME "eventQueue"
#define NAME_BYTE_LEN 16
class HelloWorldProducer : public ExceptionListener,
public MessageListener,
public Runnable {
private:
CountDownLatch latch;
CountDownLatch doneLatch;
Connection* connection;
Session* session;
Destination* destination;
MessageProducer* producer;
int numMessages;
bool useTopic;
bool sessionTransacted;
std::string brokerURI;
bool bReciveMessage;
long waitMillis;
private:
HelloWorldProducer(const HelloWorldProducer&);
HelloWorldProducer& operator=(const HelloWorldProducer&);
public:
HelloWorldProducer(const std::string& brokerURI, int numMessages, bool useTopic = false, bool sessionTransacted = false,
long waitMillis = 3000) :
latch(1),
doneLatch(numMessages),
connection(NULL),
session(NULL),
destination(NULL),
producer(NULL),
numMessages(numMessages),
useTopic(useTopic),
sessionTransacted(sessionTransacted),
brokerURI(brokerURI),
bReciveMessage(false),
waitMillis(waitMillis)
{ }
virtual ~HelloWorldProducer() {
cleanup();
}
void close() {
this->cleanup();
}
void waitUntilReady() {
latch.await();
}
virtual void run() {
try {
// Create a ConnectionFactory
auto_ptr<ConnectionFactory> connectionFactory(
ConnectionFactory::createCMSConnectionFactory(brokerURI));
// Create a Connection
connection = connectionFactory->createConnection();
connection->start();
// Create a Session
if (this->sessionTransacted) {
session = connection->createSession(Session::SESSION_TRANSACTED);
}
else {
session = connection->createSession(Session::AUTO_ACKNOWLEDGE);
}
session = connection->createSession();
// Create the destination (Topic or Queue)
if (useTopic) {
destination = session->createTopic(QUEUE_NAME);
}
else {
destination = session->createQueue(QUEUE_NAME);
}
// Create a MessageProducer from the Session to the Topic or Queue
producer = session->createProducer(destination);
producer->setDeliveryMode(DeliveryMode::NON_PERSISTENT);
// Create the Thread Id String
string threadIdStr = Long::toString(Thread::currentThread()->getId());
// Create a messages
string text = (string) "Hello world! from thread " + threadIdStr;
for (int ix = 0; ix < numMessages; ++ix) {
std::auto_ptr<TextMessage> message(session->createTextMessage(text));
//????...
std::auto_ptr<Destination> tempDest(session->createTemporaryQueue());
//cms::Destination tempDest=session->createTemporaryTopic() ;
MessageConsumer * responseConsumer = session->createConsumer(tempDest.get());
responseConsumer->setMessageListener(this);//??...
message->setCMSReplyTo(tempDest.get());
Random random;
char buffer[NAME_BYTE_LEN] = { 0 };
random.nextBytes((unsigned char *)buffer, NAME_BYTE_LEN);
string correlationId = "";
for (int i = 0; i < NAME_BYTE_LEN; ++i)
{
char ch[NAME_BYTE_LEN * 2] = { 0 };
sprintf(ch, "%02X", (unsigned char)buffer[i]);
string str(ch);
correlationId += str;
}
message->setCMSCorrelationID(correlationId);
message->setIntProperty("Integer", ix);
printf("Producer Sent message #%d from thread %s\n", ix + 1, threadIdStr.c_str());
producer->send(message.get());
// Indicate we are ready for messages.
latch.countDown();
// Wait while asynchronous messages come in.
doneLatch.await(waitMillis);
}
}
catch (CMSException& e) {
printf("Producer run() CMSException \n");
// Indicate we are ready for messages.
latch.countDown();
e.printStackTrace();
}
}
// Called from the Producer since this class is a registered MessageListener.
virtual void onMessage(const Message* message) {
static int count = 0;
try {
count++;
const TextMessage* textMessage = dynamic_cast<const TextMessage*> (message);
//ActiveMQMessageTransformation
//std::auto_ptr<TextMessage> responsemessage(session->createTextMessage());
//responsemessage->setCMSCorrelationID(textMessage->getCMSCorrelationID());
//responsemessage->getCMSReplyTo()
string text = "";
if (textMessage != NULL) {
text = textMessage->getText();
}
else {
text = "NOT A TEXTMESSAGE!";
}
printf("Producer Message #%d Received: %s\n", count, text.c_str());
//producer.send
}
catch (CMSException& e) {
printf("Producer onMessage() CMSException \n");
e.printStackTrace();
}
// Commit all messages.
if (this->sessionTransacted) {
session->commit();
}
// No matter what, tag the count down latch until done.
doneLatch.countDown();
}
// If something bad happens you see it here as this class is also been
// registered as an ExceptionListener with the connection.
virtual void onException(const CMSException& ex AMQCPP_UNUSED) {
printf("Producer onException() CMS Exception occurred. Shutting down client. \n");
ex.printStackTrace();
exit(1);
}
private:
void cleanup() {
if (connection != NULL) {
try {
connection->close();
}
catch (cms::CMSException& ex) {
ex.printStackTrace();
}
}
// Destroy resources.
try {
delete destination;
destination = NULL;
delete producer;
producer = NULL;
delete session;
session = NULL;
delete connection;
connection = NULL;
}
catch (CMSException& e) {
e.printStackTrace();
}
}
};
class HelloWorldConsumer : public ExceptionListener,
public MessageListener,
public Runnable {
private:
CountDownLatch latch;
CountDownLatch doneLatch;
Connection* connection;
Session* session;
Destination* destination;
MessageConsumer* consumer;
MessageProducer *producer;
long waitMillis;
bool useTopic;
bool sessionTransacted;
std::string brokerURI;
private:
HelloWorldConsumer(const HelloWorldConsumer&);
HelloWorldConsumer& operator=(const HelloWorldConsumer&);
public:
HelloWorldConsumer(const std::string& brokerURI, int numMessages, bool useTopic = false, bool sessionTransacted = false, int waitMillis = 30000) :
latch(1),
doneLatch(numMessages),
connection(NULL),
session(NULL),
destination(NULL),
consumer(NULL),
producer(NULL),
waitMillis(waitMillis),
useTopic(useTopic),
sessionTransacted(sessionTransacted),
brokerURI(brokerURI) {
}
virtual ~HelloWorldConsumer() {
cleanup();
}
void close() {
this->cleanup();
}
void waitUntilReady() {
latch.await();
}
virtual void run() {
try {
// Create a ConnectionFactory
auto_ptr<ConnectionFactory> connectionFactory(
ConnectionFactory::createCMSConnectionFactory(brokerURI));
// Create a Connection
connection = connectionFactory->createConnection();
connection->start();
connection->setExceptionListener(this);
// Create a Session
if (this->sessionTransacted == true) {
session = connection->createSession(Session::SESSION_TRANSACTED);
}
else {
session = connection->createSession(Session::AUTO_ACKNOWLEDGE);
}
// Create the destination (Topic or Queue)
if (useTopic) {
destination = session->createTopic(QUEUE_NAME);
}
else {
destination = session->createQueue(QUEUE_NAME);
}
producer = session->createProducer();
producer->setDeliveryMode(DeliveryMode::NON_PERSISTENT);
// Create a MessageConsumer from the Session to the Topic or Queue
consumer = session->createConsumer(destination);
consumer->setMessageListener(this);
std::cout.flush();
std::cerr.flush();
// Indicate we are ready for messages.
latch.countDown();
// Wait while asynchronous messages come in.
doneLatch.await();
}
catch (CMSException& e) {
printf("Consumer onException() CMS Exception occurred. Shutting down client. \n");
// Indicate we are ready for messages.
latch.countDown();
e.printStackTrace();
}
}
// Called from the consumer since this class is a registered MessageListener.
virtual void onMessage(const Message* message) {
static int count = 0;
try {
count++;
// Create the Thread Id String
string threadIdStr = Long::toString(Thread::currentThread()->getId());
static bool bPrintf = true;
if (bPrintf)
{
bPrintf = false;
printf("consumer Message threadid: %s\n", threadIdStr.c_str());
}
string strReply = "consumer return xxx,ThreadID=" + threadIdStr;
const TextMessage* textMessage = dynamic_cast<const TextMessage*> (message);
if (NULL == textMessage)
{
printf("NULL==textMessage %s", message->getCMSType().c_str());
return;
}
std::auto_ptr<TextMessage> responsemessage(session->createTextMessage(strReply));
responsemessage->setCMSCorrelationID(textMessage->getCMSCorrelationID());
string text = "";
if (textMessage != NULL) {
text = textMessage->getText();
}
else {
text = "NOT A TEXTMESSAGE!";
}
int nProPerty = textMessage->getIntProperty("Integer");
printf("consumer Message #%d Received: %s,nProPerty[%d]\n", count, text.c_str(), nProPerty);
const cms::Destination* destSend = textMessage->getCMSReplyTo();
if (destSend)
{
this->producer->send(destSend, responsemessage.get());
printf("consumer Message #%d send: %s\n", count, strReply.c_str());
}
}
catch (CMSException& e) {
printf("Consumer onMessage() CMS Exception occurred. Shutting down client. \n");
e.printStackTrace();
}
// Commit all messages.
if (this->sessionTransacted) {
session->commit();
}
// No matter what, tag the count down latch until done.
//doneLatch.countDown();
}
// If something bad happens you see it here as this class is also been
// registered as an ExceptionListener with the connection.
virtual void onException(const CMSException& ex AMQCPP_UNUSED) {
printf("Consumer onException() CMS Exception occurred. Shutting down client. \n");
//printf("CMS Exception occurred. Shutting down client.\n");
ex.printStackTrace();
exit(1);
}
private:
void cleanup() {
if (connection != NULL) {
try {
connection->close();
}
catch (cms::CMSException& ex) {
ex.printStackTrace();
}
}
// Destroy resources.
try {
delete destination;
destination = NULL;
delete consumer;
consumer = NULL;
delete session;
session = NULL;
delete connection;
connection = NULL;
}
catch (CMSException& e) {
e.printStackTrace();
}
}
};
int main(int argc AMQCPP_UNUSED, char* argv[] AMQCPP_UNUSED) {
//if(argc<2)
//{
// printf("argc<2\r\n");
// return 0;
//}
activemq::library::ActiveMQCPP::initializeLibrary();
{
std::cout << "=====================================================\n";
std::cout << "Starting the example:" << std::endl;
std::cout << "-----------------------------------------------------\n";
// Set the URI to point to the IP Address of your broker.
// add any optional params to the url to enable things like
// tightMarshalling or tcp logging etc. See the CMS web site for
// a full list of configuration options.
//
// http://activemq.apache.org/cms/
//
// Wire Format Options:
// =========================
// Use either stomp or openwire, the default ports are different for each
//
// Examples:
// tcp://127.0.0.1:61616 default to openwire
// tcp://127.0.0.1:61616?wireFormat=openwire same as above
// tcp://127.0.0.1:61613?wireFormat=stomp use stomp instead
//
// SSL:
// =========================
// To use SSL you need to specify the location of the trusted Root CA or the
// certificate for the broker you want to connect to. Using the Root CA allows
// you to use failover with multiple servers all using certificates signed by
// the trusted root. If using client authentication you also need to specify
// the location of the client Certificate.
//
// System::setProperty( "decaf.net.ssl.keyStore", "<path>/client.pem" );
// System::setProperty( "decaf.net.ssl.keyStorePassword", "password" );
// System::setProperty( "decaf.net.ssl.trustStore", "<path>/rootCA.pem" );
//
// The you just specify the ssl transport in the URI, for example:
//
// ssl://localhost:61617
//
std::string brokerURI = "tcp://127.0.0.1:61616?jms.watchTopicAdvisories=false";
//============================================================
// set to true to use topics instead of queues
// Note in the code above that this causes createTopic or
// createQueue to be used in both consumer an producer.
//============================================================
bool useTopics = false;
bool sessionTransacted = true;
int numMessages = 1;
bool useConsumer = true;
bool useProducer = true;
//int nSet=atoi(argv[1]);
//if(1==nSet)
//{
//#define USE_COMSUMER
//}
//else
//{
//#define USE_PRODUCER
//
//}
long long startTime = System::currentTimeMillis();
#ifdef USE_PRODUCER
printf("?? USE_PRODUCER \r\n");
int numProducerMessages = 30;
int nThreadNumber = 10;
vector<HelloWorldProducer *> vHelloWorldProducer;
for (int i = 0; i < nThreadNumber; ++i)
{
HelloWorldProducer * producerTemp = new HelloWorldProducer(brokerURI, numProducerMessages, useTopics);
vHelloWorldProducer.push_back(producerTemp);
}
#endif
#ifdef USE_COMSUMER
printf("?? USE_COMSUMER \r\n");
HelloWorldConsumer consumer(brokerURI, numMessages, useTopics, sessionTransacted);
// Start the consumer thread.
Thread consumerThread(&consumer);
consumerThread.start();
// Wait for the consumer to indicate that its ready to go.
consumer.waitUntilReady();
#endif
#ifdef USE_PRODUCER
// Start the producer thread.
vector<Thread *> vThread;
for (int i = 0; i < nThreadNumber; ++i)
{
HelloWorldProducer & ProducerTemp = *vHelloWorldProducer[i];
Thread * threadTemp = new Thread(&ProducerTemp);
vThread.push_back(threadTemp);
threadTemp->start();
ProducerTemp.waitUntilReady();
}
for (size_t i = 0; i < vThread.size(); ++i)
{
Thread * threadTemp = vThread[i];
//threadTemp->join();
}
while (1)
{
Thread::sleep(10);
}
//Thread producerThread1(&producer1);
//producerThread1.start();
//producer1.waitUntilReady();
//Thread producerThread2(&producer2);
//producerThread2.start();
//producer2.waitUntilReady();
//Thread producerThread3(&producer3);
//producerThread3.start();
//producer3.waitUntilReady();
#endif
#ifdef USE_PRODUCER
// Wait for the threads to complete.
//producerThread1.join();
//producerThread2.join();
//producerThread3.join();
#endif
#ifdef USE_COMSUMER
consumerThread.join();
#endif
long long endTime = System::currentTimeMillis();
double totalTime = (double)(endTime - startTime) / 1000.0;
#ifdef USE_PRODUCER
//producer1.close();
//producer2.close();
//producer3.close();
for (size_t i = 0; i < vHelloWorldProducer.size(); ++i)
{
HelloWorldProducer * ProducerTemp = vHelloWorldProducer[i];
ProducerTemp->close();
if (ProducerTemp)
{
delete ProducerTemp;
ProducerTemp = NULL;
}
}
#endif
#ifdef USE_COMSUMER
consumer.close();
#endif
std::cout << "Time to completion = " << totalTime << " seconds." << std::endl;
std::cout << "-----------------------------------------------------\n";
std::cout << "Finished with the example." << std::endl;
std::cout << "=====================================================\n";
}
activemq::library::ActiveMQCPP::shutdownLibrary();
return 0;
}
When I run the above example producer and consumer following happens:
- Producer is able to put the message on the queue.
- Consumer is able to retrieve the message from the queues.
- When consumer tries to send response back using replyTo desitnation, the send fails with error message listed above.
On the broker and consumer/producer I have advisorySupport turned OFF. When I turn them on this work fine.
What I would like to know: 1. How can I make the error go away but still have advisorySupport off.
Thanks a lot for your help.
The error was resolved by downcasting cms::Connection to ActiveMQConnection and calling .setWatchTopicAdvisories(false).