01: /* ===========================================================================
02: * $RCSfile: InnerClassesAttrInfo.java,v $
03: * ===========================================================================
04: *
05: * RetroGuard -- an obfuscation package for Java classfiles.
06: *
07: * Copyright (c) 1998-2006 Mark Welsh (markw@retrologic.com)
08: *
09: * This program can be redistributed and/or modified under the terms of the
10: * Version 2 of the GNU General Public License as published by the Free
11: * Software Foundation.
12: *
13: * This program is distributed in the hope that it will be useful,
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: * GNU General Public License for more details.
17: *
18: */
19:
20: package COM.rl.obf.classfile;
21:
22: import java.io.*;
23: import java.util.*;
24:
25: /**
26: * Representation of an attribute.
27: *
28: * @author Mark Welsh
29: */
30: public class InnerClassesAttrInfo extends AttrInfo {
31: // Constants -------------------------------------------------------------
32:
33: // Fields ----------------------------------------------------------------
34: private int u2numberOfClasses;
35: private InnerClassesInfo[] classes;
36:
37: // Class Methods ---------------------------------------------------------
38:
39: // Instance Methods ------------------------------------------------------
40: protected InnerClassesAttrInfo(ClassFile cf, int attrNameIndex,
41: int attrLength) {
42: super (cf, attrNameIndex, attrLength);
43: }
44:
45: /** Return the String name of the attribute; over-ride this in sub-classes. */
46: protected String getAttrName() throws Exception {
47: return ATTR_InnerClasses;
48: }
49:
50: /** Return the array of inner classes data. */
51: protected InnerClassesInfo[] getInfo() throws Exception {
52: return classes;
53: }
54:
55: /** Check for Utf8 references in the 'info' data to the constant pool and mark them. */
56: protected void markUtf8RefsInInfo(ConstantPool pool)
57: throws Exception {
58: for (int i = 0; i < classes.length; i++) {
59: classes[i].markUtf8Refs(pool);
60: }
61: }
62:
63: /** Read the data following the header. */
64: protected void readInfo(DataInput din) throws Exception {
65: u2numberOfClasses = din.readUnsignedShort();
66: classes = new InnerClassesInfo[u2numberOfClasses];
67: for (int i = 0; i < u2numberOfClasses; i++) {
68: classes[i] = InnerClassesInfo.create(din);
69: }
70: }
71:
72: /** Export data following the header to a DataOutput stream. */
73: public void writeInfo(DataOutput dout) throws Exception {
74: dout.writeShort(u2numberOfClasses);
75: for (int i = 0; i < u2numberOfClasses; i++) {
76: classes[i].write(dout);
77: }
78: }
79:
80: /** Do necessary name remapping. */
81: protected void remap(ClassFile cf, NameMapper nm) throws Exception {
82: for (int i = 0; i < u2numberOfClasses; i++) {
83: classes[i].remap(cf, nm);
84: }
85: }
86: }
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