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1
3 package jxxload_help;
4
5 public class PathVFSJavaLoader extends ClassLoader  {
6 private ClassLoader parent;
7
8 private PathVFS vfs;
9
10 public java.util.Vector interfaces = new java.util.Vector ();
11
12 public PathVFSJavaLoader(PathVFS vfs,ClassLoader parent) {
13 this.vfs = vfs;
14 this.parent = parent;
15 }
16
17 protected Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
18 Class c;
19
20 c = findLoadedClass(name);
21 if (c != null) return c;
22
23 try {
24 if (parent != null) return parent.loadClass(name);
25 } catch(ClassNotFoundException e) {
26 }
27
28 java.io.InputStream in = vfs.open(name.replace('.','/')+".class");
29 if (in == null) throw new ClassNotFoundException (name);
30 try {
31 byte[] buf = org.python.core.FileUtil.readBytes( in );
32 in.close();
33 return loadClassFromBytes(name,buf);
34 } catch(java.io.IOException e) {
35 throw new ClassNotFoundException (name);
36 }
37 }
38
39 private Class loadClassFromBytes(String name, byte[] data) {
40 Class c = defineClass(name, data, 0, data.length);
41 resolveClass(c);
42 if (c.isInterface()) interfaces.addElement(c);
43 if (!org.python.core.Options.skipCompile) {
44 Compiler.compileClass(c);
45 }
46 return c;
47 }
48
49 }
50
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Java API By Example, From Geeks To Geeks.