1 //
2 // ========================================================================
3 // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.osgi.httpservice;
20
21 import java.io.IOException;
22
23 import javax.servlet.ServletException;
24 import javax.servlet.http.HttpServletRequest;
25 import javax.servlet.http.HttpServletResponse;
26
27 import org.eclipse.jetty.server.Request;
28 import org.eclipse.jetty.servlet.ErrorPageErrorHandler;
29
30 /**
31 * Extended error page handler.
32 * Makes it easy to plug a servlet to handle errors thrown by the HttpService or
33 * to use Jetty's ErrorPageErrorHandler API to plug custom error pages.
34 */
35 public class HttpServiceErrorPageErrorHandler extends ErrorPageErrorHandler
36 {
37
38 private static HttpServiceErrorPageErrorHandler INSTANCE;
39
40 public static HttpServiceErrorPageErrorHandler getInstance()
41 {
42 return INSTANCE;
43 }
44
45 public HttpServiceErrorPageErrorHandler()
46 {
47 INSTANCE = this;
48 }
49
50 @Override
51 public void handle(String target, Request baseRequest,
52 HttpServletRequest request, HttpServletResponse response)
53 throws IOException {
54 if (HttpServiceErrorHandlerHelper.getCustomErrorHandler() != null)
55 {
56 try
57 {
58 HttpServiceErrorHandlerHelper.getCustomErrorHandler().service(request, response);
59 }
60 catch (ServletException e)
61 {
62 //well
63 }
64 }
65 if (!response.isCommitted())
66 {
67 super.handle(target, baseRequest, request, response);
68 }
69 }
70
71 @Override
72 protected void doStop() throws Exception
73 {
74 INSTANCE = null;
75 super.doStop();
76 }
77
78
79
80 }