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1 package org.apache.bcel.classfile; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache BCEL" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * "Apache BCEL", nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 57 import org.apache.bcel.Constants; 58 import java.io.*; 59 60 /*** 61 * This class is derived from <em>Attribute</em> and denotes that this is a 62 * deprecated method. 63 * It is instantiated from the <em>Attribute.readAttribute()</em> method. 64 * 65 * @version $Id: Deprecated.java,v 1.3 2002/03/11 16:16:35 mdahm Exp $ 66 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 67 * @see Attribute 68 */ 69 public final class Deprecated extends Attribute { 70 private byte[] bytes; 71 72 /*** 73 * Initialize from another object. Note that both objects use the same 74 * references (shallow copy). Use clone() for a physical copy. 75 */ 76 public Deprecated(Deprecated c) { 77 this(c.getNameIndex(), c.getLength(), c.getBytes(), c.getConstantPool()); 78 } 79 80 /*** 81 * @param name_index Index in constant pool to CONSTANT_Utf8 82 * @param length Content length in bytes 83 * @param bytes Attribute contents 84 * @param constant_pool Array of constants 85 */ 86 public Deprecated(int name_index, int length, byte[] bytes, 87 ConstantPool constant_pool) 88 { 89 super(Constants.ATTR_DEPRECATED, name_index, length, constant_pool); 90 this.bytes = bytes; 91 } 92 93 /*** 94 * Construct object from file stream. 95 * @param name_index Index in constant pool to CONSTANT_Utf8 96 * @param length Content length in bytes 97 * @param file Input stream 98 * @param constant_pool Array of constants 99 * @throws IOException 100 */ 101 Deprecated(int name_index, int length, DataInputStream file, 102 ConstantPool constant_pool) throws IOException 103 { 104 this(name_index, length, (byte [])null, constant_pool); 105 106 if(length > 0) { 107 bytes = new byte[length]; 108 file.readFully(bytes); 109 System.err.println("Deprecated attribute with length > 0"); 110 } 111 } 112 113 /*** 114 * Called by objects that are traversing the nodes of the tree implicitely 115 * defined by the contents of a Java class. I.e., the hierarchy of methods, 116 * fields, attributes, etc. spawns a tree of objects. 117 * 118 * @param v Visitor object 119 */ 120 public void accept(Visitor v) { 121 v.visitDeprecated(this); 122 } 123 124 /*** 125 * Dump source file attribute to file stream in binary format. 126 * 127 * @param file Output file stream 128 * @throws IOException 129 */ 130 public final void dump(DataOutputStream file) throws IOException 131 { 132 super.dump(file); 133 134 if(length > 0) 135 file.write(bytes, 0, length); 136 } 137 138 /*** 139 * @return data bytes. 140 */ 141 public final byte[] getBytes() { return bytes; } 142 143 /*** 144 * @param bytes. 145 */ 146 public final void setBytes(byte[] bytes) { 147 this.bytes = bytes; 148 } 149 150 /*** 151 * @return attribute name 152 */ 153 public final String toString() { 154 return Constants.ATTRIBUTE_NAMES[Constants.ATTR_DEPRECATED]; 155 } 156 157 /*** 158 * @return deep copy of this attribute 159 */ 160 public Attribute copy(ConstantPool constant_pool) { 161 Deprecated c = (Deprecated)clone(); 162 163 if(bytes != null) 164 c.bytes = (byte[])bytes.clone(); 165 166 c.constant_pool = constant_pool; 167 return c; 168 } 169 }

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