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// **********************************************************************
//
// Copyright (c) 2003-2015 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 Client extends Ice.Application
{
class ShutdownHook extends Thread
{
@Override
public void
run()
{
cleanup(true);
try
{
communicator().destroy();
}
catch(Ice.LocalException ex)
{
ex.printStackTrace();
}
}
}
private static void
menu()
{
System.out.println(
"usage:\n" +
"c: create a new per-client hello object\n" +
"0-9: send a greeting to a hello object\n" +
"s: shutdown the server and exit\n" +
"x: exit\n" +
"t: exit without destroying the session\n" +
"?: help\n");
}
@Override
public int
run(String[] args)
{
if(args.length > 0)
{
System.err.println(appName() + ": too many arguments");
return 1;
}
//
// Since this is an interactive demo we want to clear the
// Application installed interrupt callback and install our
// own shutdown hook.
//
setInterruptHook(new ShutdownHook());
java.io.BufferedReader in = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
String name;
try
{
do
{
System.out.print("Please enter your name ==> ");
System.out.flush();
name = in.readLine().trim();
}
while(name.length() == 0);
}
catch(java.io.IOException ex)
{
ex.printStackTrace();
return 0;
}
Ice.ObjectPrx base = communicator().propertyToProxy("SessionFactory.Proxy");
SessionFactoryPrx factory = SessionFactoryPrxHelper.checkedCast(base);
if(factory == null)
{
System.err.println("invalid proxy");
return 1;
}
synchronized(this)
{
_session = factory.create(name);
_executor.scheduleAtFixedRate(new Runnable()
{
@Override
public void
run()
{
try
{
_session.refresh();
}
catch(Ice.LocalException ex)
{
communicator().getLogger().warning("SessionRefreshThread: " + ex);
// Exceptions thrown from the executor task supress subsequent execution
// of the task.
throw ex;
}
}
}, 5, 5, java.util.concurrent.TimeUnit.SECONDS);
}
java.util.ArrayList<HelloPrx> hellos = new java.util.ArrayList<HelloPrx>();
menu();
try
{
boolean destroy = true;
boolean shutdown = false;
while(true)
{
System.out.print("==> ");
System.out.flush();
String line = in.readLine();
if(line == null)
{
break;
}
if(line.length() > 0 && Character.isDigit(line.charAt(0)))
{
int index;
try
{
index = Integer.parseInt(line);
}
catch(NumberFormatException e)
{
menu();
continue;
}
if(index < hellos.size())
{
HelloPrx hello = hellos.get(index);
hello.sayHello();
}
else
{
System.out.println("Index is too high. " + hellos.size() + " exist so far. " +
"Use 'c' to create a new hello object.");
}
}
else if(line.equals("c"))
{
hellos.add(_session.createHello());
System.out.println("created hello object " + (hellos.size() - 1));
}
else if(line.equals("s"))
{
destroy = false;
shutdown = true;
break;
}
else if(line.equals("x"))
{
break;
}
else if(line.equals("t"))
{
destroy = false;
break;
}
else if(line.equals("?"))
{
menu();
}
else
{
System.out.println("unknown command `" + line + "'");
menu();
}
}
cleanup(destroy);
if(shutdown)
{
factory.shutdown();
}
}
catch(Exception ex)
{
try
{
cleanup(true);
}
catch(Ice.LocalException e)
{
}
ex.printStackTrace();
}
return 0;
}
synchronized private void
cleanup(boolean destroy)
{
//
// The refresher task must be terminated before destroy is
// called, otherwise it might get ObjectNotExistException.
//
_executor.shutdown();
if(destroy && _session != null)
{
_session.destroy();
}
_session = null;
}
public static void
main(String[] args)
{
Client app = new Client();
int status = app.main("Client", args, "config.client");
System.exit(status);
}
private java.util.concurrent.ScheduledExecutorService _executor = java.util.concurrent.Executors.newScheduledThreadPool(1);
private SessionPrx _session = null;
}
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