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19 package org.eclipse.jetty.webapp;
20
21
22 import java.net.URI;
23 import java.util.ArrayList;
24 import java.util.List;
25 import java.util.jar.JarEntry;
26
27 import org.eclipse.jetty.util.log.Log;
28 import org.eclipse.jetty.util.log.Logger;
29 import org.eclipse.jetty.util.resource.Resource;
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41 public class MetaInfConfiguration extends AbstractConfiguration
42 {
43 private static final Logger LOG = Log.getLogger(MetaInfConfiguration.class);
44
45 public static final String METAINF_TLDS = TagLibConfiguration.TLD_RESOURCES;
46 public static final String METAINF_FRAGMENTS = FragmentConfiguration.FRAGMENT_RESOURCES;
47 public static final String METAINF_RESOURCES = WebInfConfiguration.RESOURCE_URLS;
48
49 @Override
50 public void preConfigure(final WebAppContext context) throws Exception
51 {
52
53
54 ArrayList<Resource> jars = new ArrayList<Resource>();
55 jars.addAll(context.getMetaData().getOrderedContainerJars());
56 jars.addAll(context.getMetaData().getWebInfJars());
57
58 JarScanner scanner = new JarScanner()
59 {
60 public void processEntry(URI jarUri, JarEntry entry)
61 {
62 try
63 {
64 MetaInfConfiguration.this.processEntry(context,jarUri,entry);
65 }
66 catch (Exception e)
67 {
68 LOG.warn("Problem processing jar entry " + entry, e);
69 }
70 }
71 };
72
73
74
75 if (jars != null)
76 {
77 URI[] uris = new URI[jars.size()];
78 int i=0;
79 for (Resource r : jars)
80 {
81 uris[i++] = r.getURI();
82 }
83 scanner.scan(null, uris, true);
84 }
85 }
86 @Override
87 public void configure(WebAppContext context) throws Exception
88 {
89
90 }
91
92 @Override
93 public void deconfigure(WebAppContext context) throws Exception
94 {
95
96 }
97
98 @Override
99 public void postConfigure(WebAppContext context) throws Exception
100 {
101 context.setAttribute(METAINF_FRAGMENTS, null);
102 context.setAttribute(METAINF_RESOURCES, null);
103 context.setAttribute(METAINF_TLDS, null);
104 }
105
106 public void addResource (WebAppContext context, String attribute, Resource jar)
107 {
108 @SuppressWarnings("unchecked")
109 List<Resource> list = (List<Resource>)context.getAttribute(attribute);
110 if (list==null)
111 {
112 list=new ArrayList<Resource>();
113 context.setAttribute(attribute,list);
114 }
115 if (!list.contains(jar))
116 list.add(jar);
117 }
118
119
120 protected void processEntry(WebAppContext context, URI jarUri, JarEntry entry)
121 {
122 String name = entry.getName();
123
124 if (!name.startsWith("META-INF/"))
125 return;
126
127 try
128 {
129 if (name.equals("META-INF/web-fragment.xml") && context.isConfigurationDiscovered())
130 {
131 addResource(context,METAINF_FRAGMENTS,Resource.newResource(jarUri));
132 }
133 else if (name.equals("META-INF/resources/") && context.isConfigurationDiscovered())
134 {
135 addResource(context,METAINF_RESOURCES,Resource.newResource("jar:"+jarUri+"!/META-INF/resources"));
136 }
137 else
138 {
139 String lcname = name.toLowerCase();
140 if (lcname.endsWith(".tld"))
141 {
142 addResource(context,METAINF_TLDS,Resource.newResource("jar:"+jarUri+"!/"+name));
143 }
144 }
145 }
146 catch(Exception e)
147 {
148 context.getServletContext().log(jarUri+"!/"+name,e);
149 }
150 }
151 }