01: /*
02: * Copyright (c) 2001-2007, Jean Tessier
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: *
09: * * Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: *
12: * * Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * * Neither the name of Jean Tessier nor the names of his contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31: */
32:
33: package com.jeantessier.classreader;
34:
35: import java.io.*;
36: import java.util.*;
37:
38: import org.apache.log4j.*;
39:
40: public class Exceptions_attribute extends Attribute_info {
41: private Collection<Class_info> exceptions = new LinkedList<Class_info>();
42:
43: public Exceptions_attribute(Classfile classfile, Visitable owner,
44: DataInputStream in) throws IOException {
45: super (classfile, owner);
46:
47: int byteCount = in.readInt();
48: Logger.getLogger(getClass()).debug(
49: "Attribute length: " + byteCount);
50:
51: int exceptionCount = in.readUnsignedShort();
52: Logger.getLogger(getClass()).debug(
53: "Reading " + exceptionCount + " exception(s) ...");
54: for (int i = 0; i < exceptionCount; i++) {
55: Logger.getLogger(getClass()).debug("Exception " + i + ":");
56: Class_info exception = (Class_info) classfile
57: .getConstantPool().get(in.readUnsignedShort());
58: exceptions.add(exception);
59: Logger.getLogger(getClass()).debug("Class " + exception);
60: }
61: }
62:
63: public Collection<Class_info> getExceptions() {
64: return exceptions;
65: }
66:
67: public String toString() {
68: return "Exceptions";
69: }
70:
71: public void accept(Visitor visitor) {
72: visitor.visitExceptions_attribute(this);
73: }
74: }
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