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Java > Open Source Codes > com > caucho > bytecode > OpaqueAttribute


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free SoftwareFoundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.bytecode;
31
32 import com.caucho.log.Log;
33
34 import java.io.IOException JavaDoc;
35 import java.util.logging.Logger JavaDoc;
36
37 /**
38  * Represents a generic attribute
39  */
40 public class OpaqueAttribute extends Attribute {
41   static private final Logger JavaDoc log = Log.open(OpaqueAttribute.class);
42
43   private byte []_value;
44
45   OpaqueAttribute(String JavaDoc name)
46   {
47     super(name);
48   }
49
50   /**
51    * Sets the opaque value.
52    */
53   public void setValue(byte []value)
54   {
55     _value = value;
56   }
57
58   /**
59    * Gets the opaque value.
60    */
61   public byte []getValue()
62   {
63     return _value;
64   }
65
66   /**
67    * Writes the field to the output.
68    */
69   public void write(ByteCodeWriter out)
70     throws IOException JavaDoc
71   {
72     out.writeUTF8Const(getName());
73     out.writeInt(_value.length);
74     out.write(_value, 0, _value.length);
75   }
76
77   /**
78    * Clones the attribute
79    */
80   public Attribute export(JavaClass cl, JavaClass target)
81   {
82     target.getConstantPool().addUTF8(getName());
83       
84     OpaqueAttribute attr = new OpaqueAttribute(getName());
85
86     byte []value = new byte[_value.length];
87     System.arraycopy(_value, 0, value, 0, _value.length);
88     
89     attr.setValue(value);
90
91     return attr;
92   }
93
94   public String JavaDoc toString()
95   {
96     return "OpaqueAttribute[" + getName() + "]";
97   }
98 }
99
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