| /** |
| * 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 "AdvisoryProducer.h" |
| |
| #include <cms/Topic.h> |
| #include <cms/Message.h> |
| #include <cms/TextMessage.h> |
| #include <decaf/lang/exceptions/NullPointerException.h> |
| #include <decaf/lang/Integer.h> |
| |
| using namespace std; |
| using namespace activemqcpp; |
| using namespace activemqcpp::examples; |
| using namespace activemqcpp::examples::advisories; |
| using namespace decaf; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| AdvisoryProducer::AdvisoryProducer( cms::Session* session ) : consumerOnline(false), |
| shutdown(false), |
| shutdownLatch(1), |
| session(session), |
| consumer(), |
| producer() { |
| |
| if( session == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, "Session Object passed was Null." ); |
| } |
| |
| std::auto_ptr<cms::Topic> destination( session->createTopic( |
| "HEART-BEAT-CHANNEL" ) ); |
| std::auto_ptr<cms::Topic> advisories( session->createTopic( |
| "ActiveMQ.Advisory.Consumer.Topic.HEART-BEAT-CHANNEL" ) ); |
| |
| this->producer.reset( session->createProducer( destination.get() ) ); |
| this->consumer.reset( session->createConsumer( advisories.get() ) ); |
| this->consumer->setMessageListener( this ); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| AdvisoryProducer::~AdvisoryProducer() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void AdvisoryProducer::stop() { |
| this->shutdown = true; |
| this->shutdownLatch.await( 3000 ); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void AdvisoryProducer::run() { |
| |
| while( !this->shutdown ) { |
| |
| if( this->consumerOnline ) { |
| |
| std::auto_ptr<cms::TextMessage> message( |
| this->session->createTextMessage( "Alive" ) ); |
| |
| this->producer->send( message.get() ); |
| |
| Thread::sleep( 1000 ); |
| } |
| } |
| |
| this->shutdownLatch.countDown(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void AdvisoryProducer::onMessage( const cms::Message* message ) { |
| |
| if( message->getCMSType() == "Advisory" ) { |
| |
| std::cout << "Received an Advisory Message!" << std::endl; |
| |
| if( message->propertyExists( "consumerCount" ) ) { |
| |
| std::string consumerCount = message->getStringProperty( "consumerCount" ); |
| std::cout << "Number of Consumers = " << consumerCount << std::endl; |
| this->consumerOnline = Integer::parseInt( consumerCount ) > 0 ? true : false; |
| } |
| |
| } else { |
| std::cout << "Received a Non-Advisory Message!" << std::endl; |
| } |
| } |