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// **********************************************************************
//
// Copyright (c) 2003-2005 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef TOPIC_I_H
#define TOPIC_I_H
#include <IceUtil/RecMutex.h>
#include <IceStorm/IceStormInternal.h>
#include <IceStorm/PersistentTopicMap.h>
#include <IceStorm/SubscriberFactory.h>
#include <list>
namespace IceStorm
{
class Event;
typedef IceUtil::Handle<Event> EventPtr;
class TopicSubscribers;
typedef IceUtil::Handle<TopicSubscribers> TopicSubscribersPtr;
class TraceLevels;
typedef IceUtil::Handle<TraceLevels> TraceLevelsPtr;
class Subscriber;
typedef IceUtil::Handle<Subscriber> SubscriberPtr;
class SubscriberFactory;
typedef IceUtil::Handle<SubscriberFactory> SubscriberFactoryPtr;
typedef std::list<SubscriberPtr> SubscriberList;
class TopicSubscribers : public IceUtil::Shared
{
public:
TopicSubscribers(const TraceLevelsPtr&);
virtual ~TopicSubscribers();
void add(const SubscriberPtr&);
void remove(const Ice::ObjectPrx&);
void publish(const EventPtr&);
SubscriberList clearErrorList();
private:
TraceLevelsPtr _traceLevels;
//
// TODO: Should there be a map from identity to subscriber?
//
IceUtil::Mutex _subscribersMutex;
SubscriberList _subscribers;
//
// Set of subscribers that have encountered an error.
//
IceUtil::Mutex _errorMutex;
SubscriberList _error;
};
class TopicI : public TopicInternal, public IceUtil::RecMutex
{
public:
TopicI(const Ice::ObjectAdapterPtr&, const TraceLevelsPtr&, const std::string&, const LinkRecordDict&,
const SubscriberFactoryPtr&, const std::string&, const std::string&);
~TopicI();
virtual std::string getName(const Ice::Current&) const;
virtual Ice::ObjectPrx getPublisher(const Ice::Current&) const;
virtual void subscribe(const QoS&, const Ice::ObjectPrx&, const Ice::Current&);
virtual void unsubscribe(const Ice::ObjectPrx&, const Ice::Current&);
virtual void destroy(const Ice::Current&);
virtual void link(const TopicPrx&, Ice::Int, const Ice::Current&);
virtual void unlink(const TopicPrx&, const Ice::Current&);
virtual LinkInfoSeq getLinkInfoSeq(const Ice::Current&) const;
virtual TopicLinkPrx getLinkProxy(const Ice::Current&);
// Internal methods
bool destroyed() const;
void reap();
private:
//
// Immutable members.
//
Ice::ObjectAdapterPtr _adapter;
TraceLevelsPtr _traceLevels;
std::string _name; // The topic name
SubscriberFactoryPtr _factory;
Ice::ObjectPtr _publisher; // Publisher & associated proxy
Ice::ObjectPrx _publisherPrx;
Ice::ObjectPtr _link; // TopicLink & associated proxy
TopicLinkPrx _linkPrx;
//
// Mutable members. Protected by *this
//
bool _destroyed; // Has this Topic been destroyed?
TopicSubscribersPtr _subscribers; // Set of Subscribers
Freeze::ConnectionPtr _connection;
PersistentTopicMap _topics;
LinkRecordDict _links;
};
typedef IceUtil::Handle<TopicI> TopicIPtr;
} // End namespace IceStorm
#endif
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