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1
5 package com.tc.jboss;
6
7 import com.tc.object.bytecode.hook.impl.ClassProcessorHelper;
8 import com.tc.object.loaders.NamedClassLoader;
9 import com.tc.object.loaders.Namespace;
10
11 import java.io.File  ;
12 import java.lang.reflect.Method ;
13 import java.net.URL ;
14
15 public class JBossLoaderNaming {
16
17 private static final String UCL = "org.jboss.mx.loading.UnifiedClassLoader";
18 private static final String UCL3 = "org.jboss.mx.loading.UnifiedClassLoader3";
19
20 private static String serverHomeDir = null;
21 private static String serverBaseDir = null;
22 private static String serverTempDir = null;
23
24 private static boolean initialized = false;
25
26 public static synchronized void initialize(ClassLoader bootLoader, File homeDir, File baseDir, File tempDir)
27 throws Exception {
28 if (initialized) { throw new IllegalStateException ("already initialized"); }
29 initialized = true;
30
31 NamedClassLoader ncl = (NamedClassLoader) bootLoader;
32 ncl.__tc_setClassLoaderName(Namespace.createLoaderName(Namespace.JBOSS_NAMESPACE, "boot"));
33 ClassProcessorHelper.registerGlobalLoader(ncl);
34
35 serverHomeDir = homeDir.getAbsoluteFile().toURL().toExternalForm();
36 serverBaseDir = baseDir.getAbsoluteFile().toURL().toExternalForm();
37 serverTempDir = tempDir.getAbsoluteFile().toURL().toExternalForm();
38 }
39
40 public synchronized static String getLoaderName(ClassLoader loader) throws Exception {
41 if (loader == null) { throw new NullPointerException ("null loader"); }
42 if (!initialized) { throw new IllegalStateException ("not yet initialized"); }
43
44 Class type = loader.getClass();
45 String className = type.getName();
46
47 if (UCL3.equals(className)) {
48 return makeUCLName(loader, true);
49 } else if (UCL.equals(className)) { return makeUCLName(loader, false); }
50
51 throw new UnsupportedOperationException ("Support missing for loader of type: " + className);
52 }
53
54 private static String makeUCLName(ClassLoader loader, boolean methodIsOnSuper) throws Exception {
55 final Class clazz = loader.getClass();
56
57 Class lookup = clazz;
58 if (methodIsOnSuper) {
59 lookup = clazz.getSuperclass();
60 }
61
62 Method getUrl = lookup.getDeclaredMethod("getURL", new Class [] {});
63 URL url = (URL ) getUrl.invoke(loader, new Object [] {});
64
65 Method getOrigUrl = lookup.getDeclaredMethod("getOrigURL", new Class [] {});
66 URL origUrl = (URL ) getOrigUrl.invoke(loader, new Object [] {});
67
68 if (url == null && origUrl == null) { return null; }
69
70 final URL u;
71 if ((url == null) || url.toExternalForm().startsWith(serverTempDir)) {
72 u = origUrl;
73 } else {
74 u = url;
75 }
76
77 String urlString = u.toExternalForm();
78
79 if (urlString.startsWith(serverHomeDir)) {
80 urlString = urlString.substring(serverHomeDir.length());
81 } else if (urlString.startsWith(serverBaseDir)) {
82 urlString = urlString.substring(serverBaseDir.length());
83 }
84
85 return Namespace.createLoaderName(Namespace.JBOSS_NAMESPACE, getShortName(clazz) + ":" + urlString);
86 }
87
88 private static String getShortName(Class clazz) {
89 String s = clazz.getName();
90 return s.substring(s.lastIndexOf('.') + 1);
91 }
92
93 }
94 |
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