EndianConverter.java

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/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
package org.openoffice.xmerge.util;
 
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
 
public class EndianConverter {
 
    public static byte[] writeShort (short value) {
        return ByteBuffer.allocate(2).order(ByteOrder.LITTLE_ENDIAN)
            .putShort(value).array();
    }
 
    public static byte[] writeInt (int value) {
        return ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN)
            .putInt(value).array();
    }
 
    public static byte[] writeDouble(double value) {
        return ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).putLong(
            Double.doubleToLongBits(value)).array();
    }
 
    public static short readShort (byte[] value) {
        return ByteBuffer.allocate(2).order(ByteOrder.LITTLE_ENDIAN)
            .put(value).getShort(0);
    }
 
    public static int readInt(byte[] value) {
        return ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN)
            .put(value).getInt(0);
    }
 
    public static double readDouble(byte[] value) {
        return Double.longBitsToDouble(
            ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).put(value)
                .getLong(0));
    }
}