01: /*
02: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
03: * Copyright (C) 2002-2005 NextApp, Inc.
04: *
05: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
06: *
07: * The contents of this file are subject to the Mozilla Public License Version
08: * 1.1 (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: * http://www.mozilla.org/MPL/
11: *
12: * Software distributed under the License is distributed on an "AS IS" basis,
13: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14: * for the specific language governing rights and limitations under the
15: * License.
16: *
17: * Alternatively, the contents of this file may be used under the terms of
18: * either the GNU General Public License Version 2 or later (the "GPL"), or
19: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20: * in which case the provisions of the GPL or the LGPL are applicable instead
21: * of those above. If you wish to allow use of your version of this file only
22: * under the terms of either the GPL or the LGPL, and not to allow others to
23: * use your version of this file under the terms of the MPL, indicate your
24: * decision by deleting the provisions above and replace them with the notice
25: * and other provisions required by the GPL or the LGPL. If you do not delete
26: * the provisions above, a recipient may use your version of this file under
27: * the terms of any one of the MPL, the GPL or the LGPL.
28: */
29:
30: package nextapp.echo2.webcontainer;
31:
32: import nextapp.echo2.app.ApplicationInstance;
33: import nextapp.echo2.webrender.ServiceRegistry;
34: import nextapp.echo2.webrender.WebRenderServlet;
35: import nextapp.echo2.webrender.service.SessionExpiredService;
36:
37: /**
38: * Web container <code>HttpServlet</code> implementation.
39: * An Echo application should provide an derivative of this
40: * class which is registered in the web application
41: * deployment descriptor.
42: */
43: public abstract class WebContainerServlet extends WebRenderServlet {
44:
45: /**
46: * Default constructor.
47: */
48: public WebContainerServlet() {
49: super ();
50: ServiceRegistry serviceRegistry = WebRenderServlet
51: .getServiceRegistry();
52: serviceRegistry.add(NewInstanceService.INSTANCE);
53: serviceRegistry.add(ContainerAsyncMonitorService.INSTANCE);
54: serviceRegistry.add(SessionExpiredService.INSTANCE);
55: serviceRegistry.add(ContainerSynchronizeService.INSTANCE);
56: serviceRegistry.add(WindowHtmlService.INSTANCE);
57: }
58:
59: /**
60: * Creates a new <code>ApplicationInstance</code> for visitor to an
61: * application.
62: *
63: * @return a new <code>ApplicationInstance</code>
64: */
65: public abstract ApplicationInstance newApplicationInstance();
66: }
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