Java ByteBuffer Endian decodeLittleEndianFixedWidthLong(ByteBuffer buffer)

Description

decode Little Endian Fixed Width Long

License

Apache License

Declaration

public static long decodeLittleEndianFixedWidthLong(ByteBuffer buffer) 

Method Source Code

//package com.java2s;
/**/*from ww w .  j av a2  s  .  c  om*/
 *  Copyright 2011 Rapleaf
 *
 *  Licensed 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
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import java.nio.ByteBuffer;

public class Main {
    public static long decodeLittleEndianFixedWidthLong(ByteBuffer buffer) {
        return decodeLittleEndianFixedWidthLong(buffer.array(), buffer.arrayOffset() + buffer.position(),
                buffer.remaining());
    }

    public static long decodeLittleEndianFixedWidthLong(byte[] bytes, int off, int len) {
        long result = 0;
        for (int i = off + len - 1; i >= off; i--) {
            result <<= 8;
            result |= bytes[i] & 0xff;
        }
        return result;
    }
}

Related

1. assertByteOrderLittleEndian(ByteBuffer buffer)
2. convertLittleEndianLong(ByteBuffer buff, int size)
3. decodeLittleEndianVarInt(ByteBuffer buffer)
4. extractInt(ByteBuffer header_buf, boolean bigEndian)
5. extractShort(ByteBuffer buffer, boolean bigEndian)
6. inLittleEndianOrder(ByteBuffer buf)