1 // ========================================================================
2 // Copyright (c) 2009 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14
15 package org.eclipse.jetty.webapp;
16
17 import java.util.List;
18
19 import org.eclipse.jetty.util.resource.Resource;
20
21 /**
22 * FragmentConfiguration
23 *
24 * This configuration supports some Servlet 3.0 features in jetty-7.
25 *
26 * Process web-fragments in jars
27 */
28 public class FragmentConfiguration implements Configuration
29 {
30 public final static String FRAGMENT_RESOURCES="org.eclipse.jetty.webFragments";
31
32 public void preConfigure(WebAppContext context) throws Exception
33 {
34 if (!context.isConfigurationDiscovered())
35 return;
36
37 WebXmlProcessor processor = (WebXmlProcessor)context.getAttribute(WebXmlProcessor.WEB_PROCESSOR);
38 if (processor == null)
39 {
40 processor = new WebXmlProcessor (context);
41 context.setAttribute(WebXmlProcessor.WEB_PROCESSOR, processor);
42 }
43
44
45 //parse web-fragment.xmls
46 parseWebFragments(context, processor);
47
48 //TODO for jetty-8/servletspec 3 we will need to merge the parsed web fragments into the
49 //effective pom in this preConfigure step
50 }
51
52 public void configure(WebAppContext context) throws Exception
53 {
54 if (!context.isConfigurationDiscovered())
55 return;
56
57 //TODO for jetty-8/servletspec3 the fragments will not be separately processed here, but
58 //will be done by webXmlConfiguration when it processes the effective merged web.xml
59 WebXmlProcessor processor = (WebXmlProcessor)context.getAttribute(WebXmlProcessor.WEB_PROCESSOR);
60 if (processor == null)
61 {
62 processor = new WebXmlProcessor (context);
63 context.setAttribute(WebXmlProcessor.WEB_PROCESSOR, processor);
64 }
65
66 processor.processFragments();
67 }
68
69 public void deconfigure(WebAppContext context) throws Exception
70 {
71
72 }
73
74 public void postConfigure(WebAppContext context) throws Exception
75 {
76 context.setAttribute(FRAGMENT_RESOURCES, null);
77 }
78
79 /* ------------------------------------------------------------------------------- */
80 /**
81 * Look for any web.xml fragments in META-INF of jars in WEB-INF/lib
82 *
83 * @throws Exception
84 */
85 public void parseWebFragments (final WebAppContext context, final WebXmlProcessor processor) throws Exception
86 {
87 List<Resource> frags = (List<Resource>)context.getAttribute(FRAGMENT_RESOURCES);
88 if (frags!=null)
89 {
90 for (Resource frag : frags)
91 {
92 processor.parseFragment(Resource.newResource("jar:"+frag.getURL()+"!/META-INF/web-fragment.xml"));
93 }
94 }
95 }
96
97 }