| /* |
| * 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. |
| */ |
| |
| #ifndef _CMSTEMPLATE_RECEIVER_H_ |
| #define _CMSTEMPLATE_RECEIVER_H_ |
| |
| #include <decaf/lang/Runnable.h> |
| #include <activemq/cmsutil/CmsTemplate.h> |
| #include <decaf/util/concurrent/CountDownLatch.h> |
| #include <decaf/util/concurrent/ThreadPoolExecutor.h> |
| #include <decaf/util/concurrent/LinkedBlockingQueue.h> |
| #include <decaf/lang/exceptions/RuntimeException.h> |
| #include "CmsMessageHandlerDefinitions.h" |
| |
| #include <decaf/util/concurrent/TimeUnit.h> |
| #include <string> |
| #include <memory> |
| |
| namespace cmstemplate { |
| |
| class ReceiverListener { |
| public: |
| |
| virtual ~ReceiverListener() {} |
| |
| virtual void onMessage(const std::string& message) = 0; |
| |
| }; |
| |
| class Receiver : public decaf::lang::Runnable { |
| private: |
| |
| std::string url; |
| decaf::util::concurrent::Mutex mutexForCmsTemplate; |
| decaf::util::concurrent::Mutex mutexGeneral; |
| bool closing; |
| decaf::util::concurrent::CountDownLatch ready; |
| ReceiverListener* messageListener; |
| std::auto_ptr<activemq::cmsutil::CmsTemplate> cmsTemplate; |
| std::auto_ptr<decaf::lang::Thread> asyncReceiverThread; |
| long long receiveTimeout; |
| bool bUseThreadPool; |
| long long cmsTemplateCreateTime; |
| long numOfMessagingTasks; |
| |
| private: |
| |
| static decaf::util::concurrent::ThreadPoolExecutor* threadPoolExecutor; |
| |
| private: |
| |
| virtual void waitUntilReady(); |
| |
| void increaseNumOfMessagingTasks(); |
| void decreaseNumOfMessagingTasks(); |
| long getNumOfMessagingTasks(); |
| |
| private: |
| |
| Receiver(const Receiver&); |
| Receiver& operator= (const Receiver&); |
| |
| public: |
| |
| Receiver(const std::string& url, const std::string& queueOrTopicName, bool isTopic, long long receiveTimeout = 2000, bool useThreadPool = true); |
| |
| virtual ~Receiver(); |
| |
| static void initialize(int reservedThreads, int maxThreads); |
| static void unInitialize(); |
| |
| void close(); |
| |
| virtual void run(); |
| |
| void registerMessageListener(ReceiverListener* messageListener, ErrorCode& errorCode); |
| |
| void receiveMessage(std::string& message, ErrorCode& errorCode, bool retryOnError = true); |
| |
| static bool isMessageExpired(cms::Message* message); |
| |
| void queueMessagingTask(const std::string& message); |
| |
| void executeMessagingTask(const std::string& message, bool bDecreaseNumOfMessagingTasks = true); |
| |
| }; |
| } |
| |
| #endif /** _CMSTEMPLATE_RECEIVER_H_ */ |