1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.compress.harmony.unpack200.bytecode;
18
19 import java.io.DataOutputStream;
20 import java.io.IOException;
21
22 /**
23 * Signature class file attribute
24 */
25 public class SignatureAttribute extends Attribute {
26
27 private static CPUTF8 attributeName;
28
29 public static void setAttributeName(final CPUTF8 cpUTF8Value) {
30 attributeName = cpUTF8Value;
31 }
32
33 private int signatureIndex;
34
35 private final CPUTF8 signature;
36
37 public SignatureAttribute(final CPUTF8 value) {
38 super(attributeName);
39 this.signature = value;
40 }
41
42 /*
43 * (non-Javadoc)
44 *
45 * @see org.apache.commons.compress.harmony.unpack200.bytecode.Attribute#getLength()
46 */
47 @Override
48 protected int getLength() {
49 return 2;
50 }
51
52 @Override
53 protected ClassFileEntry[] getNestedClassFileEntries() {
54 return new ClassFileEntry[] { getAttributeName(), signature };
55 }
56
57 @Override
58 protected void resolve(final ClassConstantPool pool) {
59 super.resolve(pool);
60 signature.resolve(pool);
61 signatureIndex = pool.indexOf(signature);
62 }
63
64 /*
65 * (non-Javadoc)
66 *
67 * @see org.apache.commons.compress.harmony.unpack200.bytecode.ClassFileEntry#toString()
68 */
69 @Override
70 public String toString() {
71 // TODO Auto-generated method stub
72 return "Signature: " + signature;
73 }
74
75 /*
76 * (non-Javadoc)
77 *
78 * @see org.apache.commons.compress.harmony.unpack200.bytecode.Attribute#writeBody(java.io.DataOutputStream)
79 */
80 @Override
81 protected void writeBody(final DataOutputStream dos) throws IOException {
82 dos.writeShort(signatureIndex);
83 }
84
85 }