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Diffstat (limited to 'xmerge/java/org/openoffice/xmerge/util/EndianConverter.java')
| -rw-r--r-- | xmerge/java/org/openoffice/xmerge/util/EndianConverter.java | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/xmerge/java/org/openoffice/xmerge/util/EndianConverter.java b/xmerge/java/org/openoffice/xmerge/util/EndianConverter.java deleted file mode 100644 index 353bee82efdc..000000000000 --- a/xmerge/java/org/openoffice/xmerge/util/EndianConverter.java +++ /dev/null @@ -1,179 +0,0 @@ -/************************************************************************ - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - - -package org.openoffice.xmerge.util; - - -/** - * <p>Helper class providing static methods to convert data to/from - * Network Byte Order (Big Endian).</p> - * - * <p>With the introduction of <code>java.nio.ByteOrder</code> and - * <code>java.nio.ByteBuffer</code> in Java 1.4, it may no longer be - * necessary to use this class in the future.</p> - * - * @author Mark Murnane - * @version 1.1 - */ -public class EndianConverter { - - /** - * <p>Convert a <code>short</code> to a Little Endian representation.</p> - * - * @param value The <code>short</code> to be converted. - * - * @return Two element <code>byte</code> array containing the converted - * value. - */ - public static byte[] writeShort (short value) { - byte[] leShort = new byte[2]; - - leShort[0] = (byte) value; - leShort[1] = (byte) (value >>> 8); - - return leShort; - } - - - /** - * <p>Convert an integer to a Little Endian representation.</p> - * - * @param value The <code>int</code> to be converted. - * - * @return Four element <code>byte</code> array containing the converted - * value. - */ - public static byte[] writeInt (int value) { - byte[] leInt = new byte[4]; - - leInt[0] = (byte) value; - leInt[1] = (byte) (value >>> 8); - leInt[2] = (byte) (value >>> 16); - leInt[3] = (byte) (value >>> 24); - - return leInt; - } - - /** - * <p>Converts a <code>double</code> to a Little Endian representation - * of a float in IEEE-754 format. - * - * <p>An array with more than eight elements can be used, but only the first - * eight elements will be read.</p> - * - * @param value <code>double</code> containing the value to be converted - * - * @return <code>byte</code> array containing the LE representation of a IEEE-754 float - */ - public static byte[] writeDouble(double value) { - - long myDouble = Double.doubleToLongBits(value); - byte[] leDouble = new byte[8]; - - leDouble[0] = (byte) (myDouble >>> 0); - leDouble[1] = (byte) (myDouble >>> 8); - leDouble[2] = (byte) (myDouble >>> 16); - leDouble[3] = (byte) (myDouble >>> 24); - leDouble[4] = (byte) (myDouble >>> 32); - leDouble[5] = (byte) (myDouble >>> 40); - leDouble[6] = (byte) (myDouble >>> 48); - leDouble[7] = (byte) (myDouble >>> 56); - - return leDouble; - } - - /** - * <p>Convert a Little Endian representation of a short to a Java - * <code>short</code> (Network Byte Order).</p> - * - * <p>An array with more than two elements can be used, but only the first - * two elements will be read.</p> - * - * @param value <code>byte</code> array containing the LE representation - * of the value. - * - * @return <code>short</code> containing the converted value. - */ - public static short readShort (byte[] value) { - int high, low; - - high = value[1] & 0xFF; - low = value[0] & 0xFF; - - return (short)(high << 8 | low); - } - - - /** - * <p>Convert a Little Endian representation of an integer to a Java - * <code>int</code> (Network Byte Order).</p> - * - * <p>An array with more than four elements can be used, but only the first - * four elements will be read.</p> - * - * @param value <code>byte</code> array containing the LE representation - * of the value. - * - * @return <code>int</code> containing the converted value. - */ - public static int readInt(byte[] value) { - int number = 0; - - for (int i = 0; i < 4; i++) { - number |= (value[i] & 0xFF) << ( i * 8); - } - - return number; - } - - /** - * <p>Convert a Little Endian representation of a float in IEEE-754 Little - * Endian to a Java <code>double</code> (Network Byte Order).</p> - * - * <p>An array with more than eight elements can be used, but only the first - * eight elements will be read.</p> - * - * @param value <code>byte</code> array containing the LE representation - * of a IEEE-754 float. - * - * @return <code>double</code> containing the converted value. - */ - public static double readDouble(byte[] value) { - - long lvalue = ( ((long)(value[7]) << 56) + - ((long)(value[6]&0xFF) << 48) + - ((long)(value[5]&0xFF) << 40) + - ((long)(value[4]&0xFF) << 32) + - ((long)(value[3]&0xFF) << 24) + - ((long)(value[2]&0xFF) << 16) + - ((long)(value[1]&0xFF) << 8) + - (long)(value[0]&0xFF)); - - return Double.longBitsToDouble(lvalue); - } -} |