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// **********************************************************************
//
// Copyright (c) 2003-2009 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.
//
// **********************************************************************
import Demo.*;
public class Subscriber extends Ice.Application
{
public class ClockI extends _ClockDisp
{
public void
tick(String date, Ice.Current current)
{
System.out.println(date);
}
}
public void
usage()
{
System.out.println("Usage: " + appName() + " [--batch] [--datagram|--twoway|--ordered|--oneway] " +
"[--retryCount count] [--id id] [topic]");
}
public int
run(String[] args)
{
args = communicator().getProperties().parseCommandLineOptions("Clock", args);
String topicName = "time";
String option = "None";
boolean batch = false;
String id = null;
String retryCount = null;
int i;
for(i = 0; i < args.length; ++i)
{
String oldoption = option;
if(args[i].equals("--datagram"))
{
option = "Datagram";
}
else if(args[i].equals("--twoway"))
{
option = "Twoway";
}
else if(args[i].equals("--ordered"))
{
option = "Ordered";
}
else if(args[i].equals("--oneway"))
{
option = "Oneway";
}
else if(args[i].equals("--batch"))
{
batch = true;
}
else if(args[i].equals("--id"))
{
++i;
if(i >= args.length)
{
usage();
return 1;
}
id = args[i];
}
else if(args[i].equals("--retryCount"))
{
++i;
if(i >= args.length)
{
usage();
return 1;
}
retryCount = args[i];
}
else if(args[i].startsWith("--"))
{
usage();
return 1;
}
else
{
topicName = args[i++];
break;
}
if(!oldoption.equals(option) && !oldoption.equals("None"))
{
usage();
return 1;
}
}
if(i != args.length)
{
usage();
return 1;
}
if(retryCount != null)
{
if(option.equals("None"))
{
option = "Twoway";
}
else if(!option.equals("Twoway") && !option.equals("Ordered"))
{
usage();
return 1;
}
}
if(batch && (option.equals("Twoway") || option.equals("Ordered")))
{
System.err.println(appName() + ": batch can only be set with oneway or datagram");
return 1;
}
IceStorm.TopicManagerPrx manager = IceStorm.TopicManagerPrxHelper.checkedCast(
communicator().propertyToProxy("TopicManager.Proxy"));
if(manager == null)
{
System.err.println("invalid proxy");
return 1;
}
//
// Retrieve the topic.
//
IceStorm.TopicPrx topic;
try
{
topic = manager.retrieve(topicName);
}
catch(IceStorm.NoSuchTopic e)
{
try
{
topic = manager.create(topicName);
}
catch(IceStorm.TopicExists ex)
{
System.err.println(appName() + ": temporary failure, try again.");
return 1;
}
}
Ice.ObjectAdapter adapter = communicator().createObjectAdapter("Clock.Subscriber");
//
// Add a servant for the Ice object. If --id is used the
// identity comes from the command line, otherwise a UUID is
// used.
//
// id is not directly altered since it is used below to detect
// whether subscribeAndGetPublisher can raise
// AlreadySubscribed.
//
Ice.Identity subId = new Ice.Identity(id, "");
if(subId.name == null)
{
subId.name = Ice.Util.generateUUID();
}
Ice.ObjectPrx subscriber = adapter.add(new ClockI(), subId);
java.util.Map<String, String> qos = new java.util.HashMap<String, String>();
if(retryCount != null)
{
qos.put("retryCount", retryCount);
}
//
// Set up the proxy.
//
if(option.equals("Datagram"))
{
if(batch)
{
subscriber = subscriber.ice_batchDatagram();
}
else
{
subscriber = subscriber.ice_datagram();
}
}
else if(option.equals("Twoway"))
{
// Do nothing to the subscriber proxy. Its already twoway.
}
else if(option.equals("Ordered"))
{
// Do nothing to the subscriber proxy. Its already twoway.
qos.put("reliability", "ordered");
}
else if(option.equals("Oneway") || option.equals("None"))
{
if(batch)
{
subscriber = subscriber.ice_batchOneway();
}
else
{
subscriber = subscriber.ice_oneway();
}
}
try
{
topic.subscribeAndGetPublisher(qos, subscriber);
}
catch(IceStorm.AlreadySubscribed e)
{
// If we're manually setting the subscriber id ignore.
if(id == null)
{
e.printStackTrace();
return 1;
}
else
{
System.out.println("reactivating persistent subscriber");
}
}
catch(IceStorm.BadQoS e)
{
e.printStackTrace();
return 1;
}
adapter.activate();
shutdownOnInterrupt();
communicator().waitForShutdown();
topic.unsubscribe(subscriber);
return 0;
}
public static void
main(String[] args)
{
Subscriber app = new Subscriber();
int status = app.main("Subscriber", args, "config.sub");
System.exit(status);
}
}
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