01: /**
02: * YGuard -- an obfuscation library for Java(TM) classfiles.
03: *
04: * Original Copyright (c) 1999 Mark Welsh (markw@retrologic.com)
05: * Modifications Copyright (c) 2002 yWorks GmbH (yguard@yworks.com)
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2 of the License, or (at your option) any later version.
11: *
12: * This library is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: *
21: * The author may be contacted at yguard@yworks.com
22: *
23: * Java and all Java-based marks are trademarks or registered
24: * trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
25: */package com.yworks.yguard.obf.classfile;
26:
27: import java.io.*;
28: import java.util.*;
29:
30: /**
31: * Representation of an Exception table entry.
32: *
33: * @author Mark Welsh
34: */
35: public class ExceptionInfo {
36: // Constants -------------------------------------------------------------
37: public static final int CONSTANT_FIELD_SIZE = 8;
38:
39: // Fields ----------------------------------------------------------------
40: private int u2startpc;
41: private int u2endpc;
42: private int u2handlerpc;
43: private int u2catchType;
44:
45: // Class Methods ---------------------------------------------------------
46: public static ExceptionInfo create(DataInput din)
47: throws java.io.IOException {
48: ExceptionInfo ei = new ExceptionInfo();
49: ei.read(din);
50: return ei;
51: }
52:
53: // Instance Methods ------------------------------------------------------
54: private ExceptionInfo() {
55: }
56:
57: private void read(DataInput din) throws java.io.IOException {
58: u2startpc = din.readUnsignedShort();
59: u2endpc = din.readUnsignedShort();
60: u2handlerpc = din.readUnsignedShort();
61: u2catchType = din.readUnsignedShort();
62: }
63:
64: /** Export the representation to a DataOutput stream. */
65: public void write(DataOutput dout) throws java.io.IOException {
66: dout.writeShort(u2startpc);
67: dout.writeShort(u2endpc);
68: dout.writeShort(u2handlerpc);
69: dout.writeShort(u2catchType);
70: }
71: }
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