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
20 package org.eclipse.jetty.webapp;
21
22 import java.util.Map;
23
24 import org.eclipse.jetty.util.resource.Resource;
25
26 /**
27 * FragmentConfiguration
28 * <p>
29 * Process web-fragments in jars
30 */
31 public class FragmentConfiguration extends AbstractConfiguration
32 {
33 public final static String FRAGMENT_RESOURCES="org.eclipse.jetty.webFragments";
34
35 @Override
36 public void preConfigure(WebAppContext context) throws Exception
37 {
38 if (!context.isConfigurationDiscovered())
39 return;
40
41 //find all web-fragment.xmls
42 findWebFragments(context, context.getMetaData());
43
44 }
45
46
47 @Override
48 public void postConfigure(WebAppContext context) throws Exception
49 {
50 context.setAttribute(FRAGMENT_RESOURCES, null);
51 }
52
53 /* ------------------------------------------------------------------------------- */
54 /**
55 * Look for any web-fragment.xml fragments in META-INF of jars in WEB-INF/lib
56 * @param context the web app context to look in
57 * @param metaData the metadata to populate with fragments
58 *
59 * @throws Exception if unable to find web fragments
60 */
61 public void findWebFragments (final WebAppContext context, final MetaData metaData) throws Exception
62 {
63 @SuppressWarnings("unchecked")
64 Map<Resource, Resource> frags = (Map<Resource,Resource>)context.getAttribute(FRAGMENT_RESOURCES);
65 if (frags!=null)
66 {
67 for (Resource key : frags.keySet())
68 {
69 if (key.isDirectory()) //tolerate the case where the library is a directory, not a jar. useful for OSGi for example
70 {
71 metaData.addFragment(key, frags.get(key));
72 }
73 else //the standard case: a jar most likely inside WEB-INF/lib
74 {
75 metaData.addFragment(key, frags.get(key));
76 }
77 }
78 }
79 }
80 }