1 |
| |
2 |
| |
3 |
| |
4 |
| package net.sourceforge.pmd.typeresolution; |
5 |
| |
6 |
| import net.sourceforge.pmd.typeresolution.visitors.PMDASMVisitor; |
7 |
| |
8 |
| import org.objectweb.asm.ClassReader; |
9 |
| import org.objectweb.asm.ClassWriter; |
10 |
| |
11 |
| import java.io.IOException; |
12 |
| import java.util.HashMap; |
13 |
| import java.util.HashSet; |
14 |
| import java.util.List; |
15 |
| import java.util.Map; |
16 |
| import java.util.Set; |
17 |
| |
18 |
| public class PMDASMClassLoader extends ClassLoader { |
19 |
| |
20 |
4
| public PMDASMClassLoader() {
|
21 |
| } |
22 |
| |
23 |
52
| public synchronized Class loadClass(String name) throws ClassNotFoundException {
|
24 |
52
| return defineClass(name);
|
25 |
| } |
26 |
| |
27 |
| private Map importedClasses = new HashMap(); |
28 |
| |
29 |
| private Set dontBother = new HashSet(); |
30 |
| |
31 |
2
| public Map getImportedClasses(String className) {
|
32 |
2
| Map ret = (Map) importedClasses.get(className);
|
33 |
2
| return ret == null ? new HashMap() : ret;
|
34 |
| } |
35 |
| |
36 |
52
| private Class defineClass(String name) throws ClassNotFoundException {
|
37 |
| |
38 |
52
| if (dontBother.contains(name)) {
|
39 |
18
| throw new ClassNotFoundException(name);
|
40 |
| } |
41 |
34
| try {
|
42 |
34
| if (name.startsWith("java.")) {
|
43 |
23
| return Class.forName(name);
|
44 |
| } |
45 |
11
| if (importedClasses.containsKey(name)) {
|
46 |
0
| if (super.findLoadedClass(name) != null) {
|
47 |
0
| return super.findLoadedClass(name);
|
48 |
| } |
49 |
| } |
50 |
11
| ClassReader reader = new ClassReader(getResourceAsStream(name.replace('.', '/') + ".class"));
|
51 |
3
| PMDASMVisitor asmVisitor = new PMDASMVisitor();
|
52 |
3
| reader.accept(asmVisitor, 0);
|
53 |
| |
54 |
3
| List inner = asmVisitor.getInnerClasses();
|
55 |
3
| if (inner != null && !inner.isEmpty()) {
|
56 |
1
| for (int ix = 0; ix < inner.size(); ix++) {
|
57 |
1
| String str = (String) inner.get(ix);
|
58 |
1
| ClassReader innerReader = new ClassReader(getResourceAsStream(str.replace('.', '/') + ".class"));
|
59 |
1
| innerReader.accept(asmVisitor, 0);
|
60 |
| } |
61 |
| } |
62 |
3
| importedClasses.put(name, asmVisitor.getPackages());
|
63 |
3
| ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
|
64 |
3
| reader.accept(writer, 0);
|
65 |
| |
66 |
3
| byte[] byteCode = writer.toByteArray();
|
67 |
3
| return defineClass(name, byteCode, 0, byteCode.length);
|
68 |
| } catch (ClassNotFoundException e) { |
69 |
0
| dontBother.add(name);
|
70 |
0
| throw e;
|
71 |
| } catch (IOException e) { |
72 |
8
| dontBother.add(name);
|
73 |
8
| throw new ClassNotFoundException(name, e);
|
74 |
| } |
75 |
| } |
76 |
| } |