Michael Bayne
27c11ce393
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4763 542714f4-19e9-0310-aa3c-eee0fc999fb1
107 lines
3.5 KiB
ActionScript
107 lines
3.5 KiB
ActionScript
//
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// $Id$
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2007 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.presents.client {
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import com.threerings.util.StringUtil;
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import com.threerings.presents.data.AuthCodes;
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/**
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* Handles the process of switching between servers.
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*
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* @see Client#moveToServer
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*/
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public class ServerSwitcher extends ClientAdapter
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{
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public function ServerSwitcher (
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client :Client, hostname :String, ports :Array, obs :InvocationService_ConfirmListener)
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{
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_client = client;
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_hostname = hostname;
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_ports = ports;
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_observer = obs;
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}
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public function switchServers () :void
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{
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_client.addClientObserver(this);
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if (!_client.isLoggedOn()) {
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// if we're not logged on right now, just do the switch immediately
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clientDidClear(null);
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} else {
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// note our current connection information so that we can restore it if our logon
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// attempt fails
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_oldHostname = _client.getHostname();
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_oldPorts = _client.getPorts();
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// otherwise logoff and wait for all of our callbacks to clear
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_client.logoff(true);
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}
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}
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// from ClientAdapter
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override public function clientDidClear (event :ClientEvent) :void
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{
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// configure the client to point to the new server and logon
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_client.setServer(_hostname, _ports);
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if (!_client.logon()) {
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Log.getLog(this).warning("logon() failed during server switch? [hostname=" + _hostname +
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", ports=" + StringUtil.toString(_ports) + "].");
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handleLogonFailure(null);
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}
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}
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// from ClientAdapter
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override public function clientDidLogon (event :ClientEvent) :void
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{
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_client.removeClientObserver(this);
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if (_observer != null) {
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_observer.requestProcessed();
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}
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}
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// from ClientAdapter
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override public function clientFailedToLogon (event :ClientEvent) :void
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{
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handleLogonFailure(event.getCause());
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}
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protected function handleLogonFailure (error :Error) :void
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{
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_client.removeClientObserver(this);
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if (_oldHostname != null) { // restore our previous server and ports
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_client.setServer(_oldHostname, _oldPorts);
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}
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if (_observer != null) {
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_observer.requestFailed((error is LogonError) ? error.message : AuthCodes.SERVER_ERROR);
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}
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}
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protected var _client :Client;
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protected var _hostname :String, _oldHostname :String;
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protected var _ports :Array, _oldPorts :Array;
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protected var _observer :InvocationService_ConfirmListener;
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}
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}
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