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// **********************************************************************
//
// Copyright (c) 2003-2007 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.
//
// **********************************************************************
#include <Ice/Application.h>
#include <IceStorm/IceStorm.h>
#include <IceGrid/Query.h>
#include <IceUtil/UUID.h>
#include <Clock.h>
#include <map>
using namespace std;
using namespace Demo;
class ClockI : public Clock
{
public:
virtual void
tick(const string& time, const Ice::Current&)
{
cout << time << endl;
}
};
class Subscriber : public Ice::Application
{
public:
virtual int run(int, char*[]);
};
int
main(int argc, char* argv[])
{
Subscriber app;
return app.main(argc, argv, "config.sub");
}
int
Subscriber::run(int argc, char* argv[])
{
Ice::PropertiesPtr properties = communicator()->getProperties();
IceGrid::QueryPrx query = IceGrid::QueryPrx::uncheckedCast(communicator()->stringToProxy("DemoIceGrid/Query"));
Ice::ObjectProxySeq managers = query->findAllReplicas(query->findObjectByType("::IceStorm::TopicManager"));
string topicName = "time";
if(argc != 1)
{
topicName = argv[1];
}
//
// Set the requested quality of service "reliability" =
// "batch". This tells IceStorm to send events to the subscriber
// in batches at regular intervals.
//
IceStorm::QoS qos;
qos["reliability"] = "batch";
//
// Create the servant to receive the events.
//
Ice::ObjectAdapterPtr adapter = communicator()->createObjectAdapter("Clock.Subscriber");
Ice::ObjectPrx clock = adapter->addWithUUID(new ClockI);
IceStorm::TopicPrx topic;
Ice::ObjectProxySeq::const_iterator p;
for(p = managers.begin(); p != managers.end(); ++p)
{
//
// Add a Servant for the Ice Object.
//
IceStorm::TopicManagerPrx manager = IceStorm::TopicManagerPrx::checkedCast(*p);
try
{
topic = manager->retrieve(topicName);
}
catch(const IceStorm::NoSuchTopic&)
{
try
{
topic = manager->create(topicName);
}
catch(const IceStorm::TopicExists&)
{
cerr << appName() << ": temporary failure. try again." << endl;
return EXIT_FAILURE;
}
}
}
Ice::ObjectProxySeq topics = query->findAllReplicas(topic);
for(p = topics.begin(); p != topics.end(); ++p)
{
topic = IceStorm::TopicPrx::uncheckedCast(*p);
topic->subscribe(qos, clock);
}
adapter->activate();
shutdownOnInterrupt();
communicator()->waitForShutdown();
//
// Unsubscribe all subscribed objects.
//
for(p = topics.begin(); p != topics.end(); ++p)
{
topic = IceStorm::TopicPrx::uncheckedCast(*p);
topic->unsubscribe(clock);
}
return EXIT_SUCCESS;
}
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