1 /* ==================================================================== 2 * The Apache Software License, Version 1.1 3 * 4 * Copyright (c) 2000 The Apache Software Foundation. All rights 5 * reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * 3. The end-user documentation included with the redistribution, 20 * if any, must include the following acknowledgment: 21 * "This product includes software developed by the 22 * Apache Software Foundation (http://www.apache.org/)." 23 * Alternately, this acknowledgment may appear in the software itself, 24 * if and wherever such third-party acknowledgments normally appear. 25 * 26 * 4. The names "Apache" and "Apache Software Foundation" must 27 * not be used to endorse or promote products derived from this 28 * software without prior written permission. For written 29 * permission, please contact apache@apache.org. 30 * 31 * 5. Products derived from this software may not be called "Apache", 32 * nor may "Apache" appear in their name, without prior written 33 * permission of the Apache Software Foundation. 34 * 35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 46 * SUCH DAMAGE. 47 * ==================================================================== 48 * 49 * This software consists of voluntary contributions made by many 50 * individuals on behalf of the Apache Software Foundation. For more 51 * information on the Apache Software Foundation, please see 52 * <http://www.apache.org/>. 53 * 54 * Portions of this software are based upon public domain software 55 * originally written at the National Center for Supercomputing Applications, 56 * University of Illinois, Urbana-Champaign. 57 * 58 * Portions of this software are based upon public domain software 59 * originally written at the National Center for Supercomputing Applications, 60 * University of Illinois, Urbana-Champaign. 61 */ 62 63 package org.apache.poi.hpsf.littleendian; 64 65 import java.io.*; 66 67 /** 68 * <p>Represents a class ID (16 bytes). Unlike other little-endian 69 * type the {@link ClassID} is not just 16 bytes stored in the wrong 70 * order. Instead, it is a double word (4 bytes) followed by two words 71 * (2 bytes each) followed by 8 bytes.</p> 72 * 73 * @see LittleEndian 74 * 75 * @author Rainer Klute (klute@rainer-klute.de) 76 * @version $Id: ClassID.java,v 1.2 2002/04/30 03:51:02 acoliver Exp $ 77 * @since 2002-02-09 78 */ 79 public class ClassID extends LittleEndian 80 { 81 82 /** 83 * <p>Creates a {@link ClassID} and reads its value from a byte 84 * array.</p> 85 * 86 * @param src The byte array to read from. 87 * 88 * @param offset The offset of the first byte to read. 89 */ 90 public ClassID(final byte[] src, final int offset) 91 { 92 super(src, offset); 93 } 94 95 96 97 public final static int LENGTH = 16; 98 99 public int length() 100 { 101 return LENGTH; 102 } 103 104 105 106 public byte[] read(byte[] src, int offset) 107 { 108 LittleEndian[] b = new LittleEndian[11]; 109 b[0] = new DWord(src, offset); 110 b[1] = new Word(src, offset += DWord.LENGTH); 111 b[2] = new Word(src, offset += Word.LENGTH); 112 b[3] = new Byte(src, offset += Word.LENGTH); 113 b[4] = new Byte(src, offset += Byte.LENGTH); 114 b[5] = new Byte(src, offset += Byte.LENGTH); 115 b[6] = new Byte(src, offset += Byte.LENGTH); 116 b[7] = new Byte(src, offset += Byte.LENGTH); 117 b[8] = new Byte(src, offset += Byte.LENGTH); 118 b[9] = new Byte(src, offset += Byte.LENGTH); 119 b[10] = new Byte(src, offset += Byte.LENGTH); 120 int capacity = 0; 121 for (int i = 0; i < b.length; i++) 122 capacity += b[i].getBytes().length; 123 bytes = new byte[capacity]; 124 int pos = 0; 125 for (int i = 0; i < b.length; i++) 126 { 127 byte[] s = b[i].getBytes(); 128 for (int j = 0; j < s.length; j++) 129 bytes[pos++] = s[j]; 130 } 131 return bytes; 132 } 133 134 } 135