Author: nmittler
Date: Thu Jul 6 08:41:15 2006
New Revision: 419587
URL: http://svn.apache.org/viewvc?rev=419587&view=rev
Log:
Adding example of usage for activemq-cpp - will be displayed on the wiki
Added:
incubator/activemq/trunk/activemq-cpp/src/examples/main.cpp
Added: incubator/activemq/trunk/activemq-cpp/src/examples/main.cpp
URL:
http://svn.apache.org/viewvc/incubator/activemq/trunk/activemq-cpp/src/examples/main.cpp?rev=419587&view=auto
==============================================================================
--- incubator/activemq/trunk/activemq-cpp/src/examples/main.cpp (added)
+++ incubator/activemq/trunk/activemq-cpp/src/examples/main.cpp Thu Jul 6
08:41:15 2006
@@ -0,0 +1,243 @@
+
+// START SNIPPET: demo
+
+#include <activemq/concurrent/Thread.h>
+#include <activemq/concurrent/Runnable.h>
+#include <activemq/core/ActiveMQConnectionFactory.h>
+#include <cms/Connection.h>
+#include <cms/Session.h>
+#include <cms/TextMessage.h>
+#include <cms/ExceptionListener.h>
+#include <cms/MessageListener.h>
+#include <stdlib.h>
+
+using namespace activemq::core;
+using namespace activemq::concurrent;
+using namespace cms;
+using namespace std;
+
+class HelloWorldProducer : public Runnable {
+private:
+
+ Connection* connection;
+ Session* session;
+ Destination* destination;
+ MessageProducer* producer;
+ int numMessages;
+
+public:
+
+ HelloWorldProducer( int numMessages ){
+ connection = NULL;
+ session = NULL;
+ destination = NULL;
+ producer = NULL;
+ this->numMessages = numMessages;
+ }
+
+ virtual ~HelloWorldProducer(){
+ cleanup();
+ }
+
+ virtual void run() {
+ try {
+ // Create a ConnectionFactory
+ ActiveMQConnectionFactory* connectionFactory = new
ActiveMQConnectionFactory("127.0.0.1:61613");
+
+ // Create a Connection
+ connection = connectionFactory->createConnection();
+ connection->start();
+
+ // Create a Session
+ session = connection->createSession( Session::AutoAcknowledge );
+
+ // Create the destination (Topic or Queue)
+ destination = session->createQueue("TEST.FOO");
+
+ // Create a MessageProducer from the Session to the Topic or Queue
+ producer = session->createProducer(*destination);
+ producer->setDeliveryMode( Message::NONPERSISTANT);
+
+ // Stringify the thread id
+ char threadIdStr[100];
+ itoa( Thread::getId(), threadIdStr, 10 );
+
+ // Create a messages
+ string text = (string)"Hello world! from thread " + threadIdStr;
+
+ for( int ix=0; ix<numMessages; ++ix ){
+ TextMessage* message = session->createTextMessage( text );
+
+ // Tell the producer to send the message
+ printf( "Sent message from thread %s\n", threadIdStr );
+ producer->send(*message);
+
+ delete message;
+ }
+
+ }catch (CMSException& e) {
+ e.printStackTrace();
+ }
+ }
+
+private:
+
+ void cleanup(){
+
+ // Close open resources.
+ try{
+ if( session != NULL ) session->close();
+ if( connection != NULL ) connection->close();
+ }catch (CMSException& e) {}
+
+ // Destroy resources.
+ try{
+ if( destination != NULL ) delete destination;
+ }catch (CMSException& e) {}
+ destination = NULL;
+
+ try{
+ if( producer != NULL ) delete producer;
+ }catch (CMSException& e) {}
+ producer = NULL;
+
+ try{
+ if( session != NULL ) delete session;
+ }catch (CMSException& e) {}
+ session = NULL;
+
+ try{
+ if( connection != NULL ) delete connection;
+ }catch (CMSException& e) {}
+ connection = NULL;
+ }
+};
+
+class HelloWorldConsumer : public ExceptionListener,
+ public MessageListener,
+ public Runnable {
+
+private:
+
+ Connection* connection;
+ Session* session;
+ Destination* destination;
+ MessageConsumer* consumer;
+ long waitMillis;
+
+public:
+
+ HelloWorldConsumer( long waitMillis ){
+ connection = NULL;
+ session = NULL;
+ destination = NULL;
+ consumer = NULL;
+ this->waitMillis = waitMillis;
+ }
+ virtual ~HelloWorldConsumer(){
+ cleanup();
+ }
+
+ virtual void run() {
+
+ try {
+
+ // Create a ConnectionFactory
+ ActiveMQConnectionFactory* connectionFactory = new
ActiveMQConnectionFactory("127.0.0.1:61613");
+
+ // Create a Connection
+ connection = connectionFactory->createConnection();
+ delete connectionFactory;
+ connection->start();
+
+ connection->setExceptionListener(this);
+
+ // Create a Session
+ session = connection->createSession( Session::AutoAcknowledge );
+
+ // Create the destination (Topic or Queue)
+ destination = session->createQueue("TEST.FOO");
+
+ // Create a MessageConsumer from the Session to the Topic or Queue
+ consumer = session->createConsumer(*destination);
+
+ consumer->setMessageListener( this );
+
+ // Sleep while asynchronous messages come in.
+ Thread::sleep( waitMillis );
+
+ } catch (CMSException& e) {
+ e.printStackTrace();
+ }
+ }
+
+ virtual void onMessage( const Message& message ){
+
+ try
+ {
+ const TextMessage& textMessage = dynamic_cast<const
TextMessage&>(message);
+ string text = textMessage.getText();
+ printf( "Received: %s\n", text.c_str() );
+ }
+ catch( std::bad_cast& ex )
+ {
+ printf( "Received something other than a text Message\n" );
+ }
+ }
+
+ virtual void onException( const CMSException& ex ) {
+ printf("JMS Exception occured. Shutting down client.\n");
+ }
+
+private:
+
+ void cleanup(){
+
+ // Close open resources.
+ try{
+ if( session != NULL ) session->close();
+ if( connection != NULL ) connection->close();
+ }catch (CMSException& e) {}
+
+ // Destroy resources.
+ try{
+ if( destination != NULL ) delete destination;
+ }catch (CMSException& e) {}
+ destination = NULL;
+
+ try{
+ if( consumer != NULL ) delete consumer;
+ }catch (CMSException& e) {}
+ consumer = NULL;
+
+ try{
+ if( session != NULL ) delete session;
+ }catch (CMSException& e) {}
+ session = NULL;
+
+ try{
+ if( connection != NULL ) delete connection;
+ }catch (CMSException& e) {}
+ connection = NULL;
+ }
+};
+
+void main(int argc, char* argv[]) {
+
+ HelloWorldProducer producer( 1000 );
+ HelloWorldConsumer consumer( 5000 );
+
+ // Start the consumer thread.
+ Thread consumerThread( &consumer );
+ consumerThread.start();
+
+ // Start the producer thread.
+ Thread producerThread( &producer );
+ producerThread.start();
+
+ // Wait for the threads to complete.
+ producerThread.join();
+ consumerThread.join();
+}
+
+// END SNIPPET: demo
