| /* |
| * 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. |
| */ |
| |
| #include <decaf/lang/Thread.h> |
| #include <decaf/lang/Runnable.h> |
| #include <decaf/util/concurrent/CountDownLatch.h> |
| #include <activemq/core/ActiveMQConnectionFactory.h> |
| #include <activemq/core/ActiveMQConnection.h> |
| #include <activemq/transport/DefaultTransportListener.h> |
| #include <activemq/library/ActiveMQCPP.h> |
| #include <decaf/lang/Integer.h> |
| #include <activemq/util/Config.h> |
| #include <decaf/util/Date.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> |
| |
| using namespace activemq; |
| using namespace activemq::core; |
| using namespace activemq::transport; |
| using namespace decaf::lang; |
| using namespace decaf::util; |
| using namespace decaf::util::concurrent; |
| using namespace cms; |
| using namespace std; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| class SimpleAsyncConsumer : public ExceptionListener, |
| public MessageListener, |
| public DefaultTransportListener { |
| private: |
| |
| Connection* connection; |
| Session* session; |
| Destination* destination; |
| MessageConsumer* consumer; |
| bool useTopic; |
| std::string brokerURI; |
| std::string destURI; |
| bool clientAck; |
| |
| private: |
| |
| SimpleAsyncConsumer(const SimpleAsyncConsumer&); |
| SimpleAsyncConsumer& operator=(const SimpleAsyncConsumer&); |
| |
| public: |
| |
| SimpleAsyncConsumer(const std::string& brokerURI, |
| const std::string& destURI, |
| bool useTopic = false, |
| bool clientAck = false) : |
| connection(NULL), |
| session(NULL), |
| destination(NULL), |
| consumer(NULL), |
| useTopic(useTopic), |
| brokerURI(brokerURI), |
| destURI(destURI), |
| clientAck(clientAck) { |
| } |
| |
| virtual ~SimpleAsyncConsumer() { |
| this->cleanup(); |
| } |
| |
| void close() { |
| this->cleanup(); |
| } |
| |
| void runConsumer() { |
| |
| try { |
| |
| // Create a ConnectionFactory |
| ActiveMQConnectionFactory* connectionFactory = new ActiveMQConnectionFactory(brokerURI); |
| |
| // Create a Connection |
| connection = connectionFactory->createConnection(); |
| delete connectionFactory; |
| |
| ActiveMQConnection* amqConnection = dynamic_cast<ActiveMQConnection*>(connection); |
| if (amqConnection != NULL) { |
| amqConnection->addTransportListener(this); |
| } |
| |
| connection->start(); |
| |
| connection->setExceptionListener(this); |
| |
| // Create a Session |
| if (clientAck) { |
| session = connection->createSession(Session::CLIENT_ACKNOWLEDGE); |
| } else { |
| session = connection->createSession(Session::AUTO_ACKNOWLEDGE); |
| } |
| |
| // Create the destination (Topic or Queue) |
| if (useTopic) { |
| destination = session->createTopic(destURI); |
| } else { |
| destination = session->createQueue(destURI); |
| } |
| |
| // Create a MessageConsumer from the Session to the Topic or Queue |
| consumer = session->createConsumer(destination); |
| consumer->setMessageListener(this); |
| |
| } catch (CMSException& e) { |
| 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++; |
| const TextMessage* textMessage = dynamic_cast<const TextMessage*>(message); |
| string text = ""; |
| |
| if (textMessage != NULL) { |
| text = textMessage->getText(); |
| } else { |
| text = "NOT A TEXTMESSAGE!"; |
| } |
| |
| if (clientAck) { |
| message->acknowledge(); |
| } |
| |
| printf("Message #%d Received: %s\n", count, text.c_str()); |
| } catch (CMSException& e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| // 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("CMS Exception occurred. Shutting down client.\n"); |
| exit(1); |
| } |
| |
| virtual void onException(const decaf::lang::Exception& ex) { |
| printf("Transport Exception occurred: %s \n", ex.getMessage().c_str()); |
| } |
| |
| virtual void transportInterrupted() { |
| std::cout << "The Connection's Transport has been Interrupted." << std::endl; |
| } |
| |
| virtual void transportResumed() { |
| std::cout << "The Connection's Transport has been Restored." << std::endl; |
| } |
| |
| private: |
| |
| void cleanup(){ |
| |
| //************************************************* |
| // Always close destination, consumers and producers before |
| // you destroy their sessions and connection. |
| //************************************************* |
| |
| // Destroy resources. |
| try{ |
| if( destination != NULL ) delete destination; |
| }catch (CMSException& e) {} |
| destination = NULL; |
| |
| try{ |
| if( consumer != NULL ) delete consumer; |
| }catch (CMSException& e) {} |
| consumer = NULL; |
| |
| // Close open resources. |
| try{ |
| if( session != NULL ) session->close(); |
| if( connection != NULL ) connection->close(); |
| }catch (CMSException& e) {} |
| |
| // Now Destroy them |
| try{ |
| if( session != NULL ) delete session; |
| }catch (CMSException& e) {} |
| session = NULL; |
| |
| try{ |
| if( connection != NULL ) delete connection; |
| }catch (CMSException& e) {} |
| connection = NULL; |
| } |
| }; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int main(int argc AMQCPP_UNUSED, char* argv[] AMQCPP_UNUSED) { |
| |
| activemq::library::ActiveMQCPP::initializeLibrary(); |
| |
| std::cout << "=====================================================\n"; |
| std::cout << "Starting the example:" << std::endl; |
| std::cout << "-----------------------------------------------------\n"; |
| |
| // Set the URI to point to the IPAddress 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 |
| // |
| std::string brokerURI = |
| "failover:(tcp://127.0.0.1:61616" |
| // "?wireFormat=openwire" |
| // "&connection.useAsyncSend=true" |
| // "&transport.commandTracingEnabled=true" |
| // "&transport.tcpTracingEnabled=true" |
| // "&wireFormat.tightEncodingEnabled=true" |
| ")"; |
| |
| //============================================================ |
| // This is the Destination Name and URI options. Use this to |
| // customize where the consumer listens, to have the consumer |
| // use a topic or queue set the 'useTopics' flag. |
| //============================================================ |
| std::string destURI = "TEST.FOO"; //?consumer.prefetchSize=1"; |
| |
| //============================================================ |
| // set to true to use topics instead of queues |
| // Note in the code above that this causes createTopic or |
| // createQueue to be used in the consumer. |
| //============================================================ |
| bool useTopics = false; |
| |
| //============================================================ |
| // set to true if you want the consumer to use client ack mode |
| // instead of the default auto ack mode. |
| //============================================================ |
| bool clientAck = false; |
| |
| // Create the consumer |
| SimpleAsyncConsumer consumer( brokerURI, destURI, useTopics, clientAck ); |
| |
| // Start it up and it will listen forever. |
| consumer.runConsumer(); |
| |
| // Wait to exit. |
| std::cout << "Press 'q' to quit" << std::endl; |
| while( std::cin.get() != 'q') {} |
| |
| // All CMS resources should be closed before the library is shutdown. |
| consumer.close(); |
| |
| std::cout << "-----------------------------------------------------\n"; |
| std::cout << "Finished with the example." << std::endl; |
| std::cout << "=====================================================\n"; |
| |
| activemq::library::ActiveMQCPP::shutdownLibrary(); |
| } |