Receiver.h

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// -*- lsst-c++ -*-

/*
 * LSST Data Management System
 * Copyright 2008-2016  AURA/LSST.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <https://www.lsstcorp.org/LegalNotices/>.
 */

#ifndef LSST_CTRL_EVENTS_RECEIVER_H
#define LSST_CTRL_EVENTS_RECEIVER_H


#include <cms/Connection.h>
#include <cms/Session.h>
#include <cms/TextMessage.h>

#include <stdlib.h>
#include <iostream>

#include "lsst/base.h"
#include "lsst/utils/Utils.h"
#include "lsst/daf/base/PropertySet.h"

#include "lsst/ctrl/events/Event.h"
#include "lsst/ctrl/events/EventBroker.h"

using lsst::daf::base::PropertySet;

namespace lsst {
namespace ctrl {
namespace events {
class Receiver {
public:
    Receiver();

    virtual ~Receiver();

    PTR(Event) receiveEvent();

    PTR(Event) receiveEvent(long timeout);

    virtual std::string getDestinationPropertyName() = 0;

    std::string getDestinationName();

    std::string getSelector();

    static const long infiniteTimeout = -1;

protected:
    std::string _destinationName;
    //
    // JMS session
    cms::Session* _session;

    void init(const std::string& hostName, const std::string& destinationName, const std::string& selector, bool createQueue, int hostPort);

private:

    // connection to the JMS broker
    cms::Connection* _connection;

    // JMS message destination
    cms::Destination* _destination;

    // Object that receives the messages
    cms::MessageConsumer* _consumer;

    // the selector for this receiver
    std::string _selector;

};


}
}
}


#endif /*end LSST_CTRL_EVENTS_RECEIVER_H*/