src/main/activemq/transport/correlator/FutureResponse.h

Go to the documentation of this file.

/*
 * 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 _ACTIVEMQ_TRANSPORT_CORRELATOR_FUTURERESPONSE_H_
#define _ACTIVEMQ_TRANSPORT_CORRELATOR_FUTURERESPONSE_H_

#include <activemq/util/Config.h>
#include <decaf/lang/Pointer.h>
#include <decaf/util/concurrent/Mutex.h>
#include <decaf/util/concurrent/CountDownLatch.h>
#include <activemq/commands/Response.h>

#include <activemq/exceptions/ActiveMQException.h>

namespace activemq{
namespace transport{
namespace correlator{

    using decaf::lang::Pointer;
    using activemq::commands::Response;

    class AMQCPP_API FutureResponse {
    private:

        mutable decaf::util::concurrent::CountDownLatch responseLatch;
        Pointer<Response> response;

    public:

        FutureResponse() : responseLatch( 1 ), response() {}

        virtual ~FutureResponse(){}

        virtual const Pointer<Response>& getResponse() const {
            this->responseLatch.await();
            return response;
        }
        virtual Pointer<Response>& getResponse() {
            this->responseLatch.await();
            return response;
        }

        virtual const Pointer<Response>& getResponse( unsigned int timeout ) const {
            this->responseLatch.await( timeout );
            return response;
        }
        virtual Pointer<Response>& getResponse( unsigned int timeout ) {
            this->responseLatch.await( timeout );
            return response;
        }

        virtual void setResponse( const Pointer<Response>& response ) {
            this->response = response;
            this->responseLatch.countDown();
        }

    };

}}}

#endif /*_ACTIVEMQ_TRANSPORT_CORRELATOR_FUTURERESPONSE_H_*/