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// **********************************************************************
//
// Copyright (c) 2003-2014 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.
//
// **********************************************************************
(function(){
require("Ice");
require("Glacier2");
require("./Chat");
//
// Servant that implements the ChatCallback interface,
// the message operation just writes the received data
// to stdout.
//
var ChatCallbackI = Ice.Class(Demo.ChatCallback, {
message: function(data)
{
console.log(data);
}
});
var communicator;
//
// Destroy communicator on SIGINT so application
// exit cleanly.
//
process.once("SIGINT", function() {
if(communicator)
{
communicator.destroy().finally(
function()
{
process.exit(0);
});
}
});
Ice.Promise.try(
function()
{
//
// Initialize the communicator with Ice.Default.Router property
// set to the chat demo Glacier2 router.
//
var id = new Ice.InitializationData();
id.properties = Ice.createProperties();
id.properties.setProperty("Ice.Default.Router", "DemoGlacier2/router:tcp -p 4063 -h localhost");
communicator = Ice.initialize(id);
function createSession()
{
return Ice.Promise.try(
function()
{
//
// Get a proxy to the default rotuer and down-cast it to Glacier2.Router
// interface to ensure Glacier2 server is available.
//
var router = communicator.getDefaultRouter();
var id;
return Glacier2.RouterPrx.checkedCast(router).then(
function(proxy)
{
router = proxy;
console.log("This demo accepts any user-id / password combination.");
process.stdout.write("user id: ");
return getline();
}
).then(
function(str)
{
id = str;
process.stdout.write("password: ");
return getline();
}
).then(
function(password)
{
return router.createSession(id, password);
}
).then(
function(session)
{
return runWithSession(router, Demo.ChatSessionPrx.uncheckedCast(session));
},
function(ex)
{
if(ex instanceof Glacier2.PermissionDeniedException)
{
console.log("permission denied:\n" + ex.reason);
return createSession();
}
else if(ex instanceof Glacier2.CannotCreateSessionException)
{
console.log("cannot create session:\n" + ex.reason);
return createSession();
}
else
{
throw ex;
}
});
});
};
function runWithSession(router, session)
{
var p = new Ice.Promise();
//
// Get the session timeout, the router client category and
// create the client object adapter.
//
// Use Ice.Promise.all to wait for the completion of all the
// calls.
//
Ice.Promise.all(
router.getSessionTimeout(),
router.getCategoryForClient(),
communicator.createObjectAdapterWithRouter("", router)
).then(
function(timeoutA, categoryA, adapterA)
{
var timeout = timeoutA[0];
var category = categoryA[0];
var adapter = adapterA[0];
//
// Call refreshSession in a loop to keep the
// session alive.
//
var refreshSession = function()
{
router.refreshSession().exception(
function(ex)
{
p.fail(ex);
}
).delay(timeout.toNumber() * 500).then(
function()
{
if(!p.completed())
{
refreshSession();
}
});
};
refreshSession();
//
// Create the ChatCallback servant and add it to the ObjectAdapter.
//
var callback = Demo.ChatCallbackPrx.uncheckedCast(
adapter.add(new ChatCallbackI(), new Ice.Identity("callback", category)));
//
// Set the chat session callback.
//
return session.setCallback(callback);
}
).then(
function()
{
//
// The chat function sequantially reads stdin messages
// and send it to server using the session say method.
//
function chat()
{
process.stdout.write("==> ");
return getline().then(
function(msg)
{
if(msg == "/quit")
{
p.succeed();
}
else if(msg.indexOf("/") == 0)
{
console.log("enter /quit to exit.");
}
else
{
return session.say(msg);
}
}
).then(
function()
{
if(!p.completed())
{
return chat();
}
}
).exception(
function(ex)
{
p.fail(ex);
});
}
//
// Start the chat loop
//
return chat();
}
).finally(
function()
{
//
// Destroy the session.
//
return router.destroySession();
}
).exception(
function(ex)
{
p.fail(ex);
});
return p;
}
return createSession();
}
).finally(
function()
{
//
// Destroy the communicator if required.
//
if(communicator)
{
return communicator.destroy();
}
}
).then(
function()
{
process.exit(0);
},
function(ex)
{
//
// Handle any exceptions above.
//
console.log(ex.toString());
process.exit(1);
});
//
// Asynchonously process stdin lines using a promise
//
var getline = function()
{
var p = new Ice.Promise();
process.stdin.resume();
process.stdin.once("data",
function(buffer)
{
process.stdin.pause();
p.succeed(buffer.toString("utf-8").trim());
});
return p;
};
}());
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