001    /*
002     * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
003     * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004     *
005     * This code is free software; you can redistribute it and/or modify it
006     * under the terms of the GNU General Public License version 2 only, as
007     * published by the Free Software Foundation.  Sun designates this
008     * particular file as subject to the "Classpath" exception as provided
009     * by Sun in the LICENSE file that accompanied this code.
010     *
011     * This code is distributed in the hope that it will be useful, but WITHOUT
012     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013     * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014     * version 2 for more details (a copy is included in the LICENSE file that
015     * accompanied this code).
016     *
017     * You should have received a copy of the GNU General Public License version
018     * 2 along with this work; if not, write to the Free Software Foundation,
019     * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020     *
021     * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022     * CA 95054 USA or visit www.sun.com if you need additional information or
023     * have any questions.
024     */
025    
026    
027    
028    package sun.tools.javap;
029    
030    import java.io.*;
031    
032    /**
033     * Reads and stores attribute information.
034     *
035     * @author  Sucheta Dambalkar (Adopted code from jdis)
036     */
037    class AttrData {
038        ClassData cls;
039        int name_cpx;
040        int datalen;
041        byte data[];
042    
043        public AttrData (ClassData cls) {
044            this.cls=cls;
045        }
046    
047        /**
048         * Reads unknown attribute.
049         */
050        public void read(int name_cpx, DataInputStream in) throws IOException {
051            this.name_cpx=name_cpx;
052            datalen=in.readInt();
053            data=new byte[datalen];
054            in.readFully(data);
055        }
056    
057        /**
058         * Reads just the name of known attribute.
059         */
060        public void read(int name_cpx){
061            this.name_cpx=name_cpx;
062        }
063    
064        /**
065         * Returns attribute name.
066         */
067        public String getAttrName(){
068            return cls.getString(name_cpx);
069        }
070    
071        /**
072         * Returns attribute data.
073         */
074        public byte[] getData(){
075            return data;
076        }
077    }