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14 package org.eclipse.jetty.webapp;
15
16
17 import java.net.URI;
18 import java.util.ArrayList;
19 import java.util.List;
20 import java.util.jar.JarEntry;
21
22 import org.eclipse.jetty.util.log.Log;
23 import org.eclipse.jetty.util.resource.Resource;
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35 public class MetaInfConfiguration implements Configuration
36 {
37 public static final String METAINF_TLDS = TagLibConfiguration.TLD_RESOURCES;
38 public static final String METAINF_FRAGMENTS = FragmentConfiguration.FRAGMENT_RESOURCES;
39 public static final String METAINF_RESOURCES = WebInfConfiguration.RESOURCE_URLS;
40 public static final String CONTAINER_JAR_RESOURCES = WebInfConfiguration.CONTAINER_JAR_RESOURCES;
41 public static final String WEB_INF_JAR_RESOURCES = WebInfConfiguration.WEB_INF_JAR_RESOURCES;
42
43 public void preConfigure(final WebAppContext context) throws Exception
44 {
45
46
47 ArrayList<Resource> jars = new ArrayList<Resource>();
48 jars.addAll((List<Resource>)context.getAttribute(CONTAINER_JAR_RESOURCES));
49 jars.addAll((List<Resource>)context.getAttribute(WEB_INF_JAR_RESOURCES));
50
51 JarScanner scanner = new JarScanner()
52 {
53 public void processEntry(URI jarUri, JarEntry entry)
54 {
55 try
56 {
57 MetaInfConfiguration.this.processEntry(context,jarUri,entry);
58 }
59 catch (Exception e)
60 {
61 Log.warn("Problem processing jar entry " + entry, e);
62 }
63 }
64 };
65
66
67
68 if (jars != null)
69 {
70 URI[] uris = new URI[jars.size()];
71 int i=0;
72 for (Resource r : jars)
73 {
74 uris[i++] = r.getURI();
75 }
76 scanner.scan(null, uris, true);
77 }
78 }
79
80
81 public void configure(WebAppContext context) throws Exception
82 {
83
84 }
85
86 public void deconfigure(WebAppContext context) throws Exception
87 {
88
89 }
90
91 public void postConfigure(WebAppContext context) throws Exception
92 {
93 context.setAttribute(METAINF_FRAGMENTS, null);
94 context.setAttribute(METAINF_RESOURCES, null);
95 context.setAttribute(METAINF_TLDS, null);
96 }
97
98 public void addResource (WebAppContext context, String attribute, Resource jar)
99 {
100 List<Resource> list = (List<Resource>)context.getAttribute(attribute);
101 if (list==null)
102 {
103 list=new ArrayList<Resource>();
104 context.setAttribute(attribute,list);
105 }
106 if (!list.contains(jar))
107 list.add(jar);
108 }
109
110
111 protected void processEntry(WebAppContext context, URI jarUri, JarEntry entry)
112 {
113 String name = entry.getName();
114
115 if (!name.startsWith("META-INF/"))
116 return;
117
118 try
119 {
120 if (name.equals("META-INF/web-fragment.xml") && context.isConfigurationDiscovered())
121 {
122 addResource(context,METAINF_FRAGMENTS,Resource.newResource(jarUri));
123 }
124 else if (name.equals("META-INF/resources/") && context.isConfigurationDiscovered())
125 {
126 addResource(context,METAINF_RESOURCES,Resource.newResource("jar:"+jarUri+"!/META-INF/resources"));
127 }
128 else
129 {
130 String lcname = name.toLowerCase();
131 if (lcname.endsWith(".tld"))
132 {
133 addResource(context,METAINF_TLDS,Resource.newResource("jar:"+jarUri+"!/"+name));
134 }
135 }
136 }
137 catch(Exception e)
138 {
139 context.getServletContext().log(jarUri+"!/"+name,e);
140 }
141 }
142 }