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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 <IceUtil/Options.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");
}
void
usage(const string& n)
{
cerr << "Usage: " << n << " [--batch] [--datagram|--twoway|--ordered|--oneway] [topic]" << endl;
}
int
Subscriber::run(int argc, char* argv[])
{
IceUtil::Options opts;
opts.addOpt("", "datagram");
opts.addOpt("", "twoway");
opts.addOpt("", "ordered");
opts.addOpt("", "oneway");
opts.addOpt("", "batch");
IceUtil::Options::StringVector remaining;
try
{
remaining = opts.parse(argc, (const char**)argv);
}
catch(const IceUtil::BadOptException& e)
{
cerr << argv[0] << ": " << e.reason << endl;
usage(appName());
return EXIT_FAILURE;
}
IceStorm::TopicManagerPrx manager = IceStorm::TopicManagerPrx::checkedCast(
communicator()->propertyToProxy("IceStorm.TopicManager.Proxy"));
if(!manager)
{
cerr << appName() << ": invalid proxy" << endl;
return EXIT_FAILURE;
}
string topicName = "time";
if(!remaining.empty())
{
topicName = remaining.front();
}
IceStorm::TopicPrx topic;
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::ObjectAdapterPtr adapter = communicator()->createObjectAdapter("Clock.Subscriber");
//
// Add a Servant for the Ice Object.
//
IceStorm::QoS qos;
Ice::ObjectPrx subscriber = adapter->addWithUUID(new ClockI);
//
// Set up the proxy.
//
int optsSet = 0;
if(opts.isSet("datagram"))
{
subscriber = subscriber->ice_datagram();
++optsSet;
}
if(opts.isSet("twoway"))
{
// Do nothing to the subscriber proxy. Its already twoway.
++optsSet;
}
if(opts.isSet("ordered"))
{
qos["reliability"] = "ordered";
// Do nothing to the subscriber proxy. Its already twoway.
++optsSet;
}
if(opts.isSet("oneway") || optsSet == 0)
{
subscriber = subscriber->ice_oneway();
++optsSet;
}
if(optsSet != 1)
{
usage(appName());
return EXIT_FAILURE;
}
if(opts.isSet("batch"))
{
if(opts.isSet("twoway") || opts.isSet("ordered"))
{
cerr << appName() << ": batch can only be set with oneway or datagram" << endl;
return EXIT_FAILURE;
}
if(opts.isSet("datagram"))
{
subscriber = subscriber->ice_batchDatagram();
}
else
{
subscriber = subscriber->ice_batchOneway();
}
}
topic->subscribeAndGetPublisher(qos, subscriber);
adapter->activate();
shutdownOnInterrupt();
communicator()->waitForShutdown();
topic->unsubscribe(subscriber);
return EXIT_SUCCESS;
}
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