Java ByteBuffer Copy copyToHeapBuffer(ByteBuffer src, ByteBuffer dest)

Description

copy To Heap Buffer

License

Open Source License

Declaration

public static int copyToHeapBuffer(ByteBuffer src, ByteBuffer dest) 

Method Source Code

//package com.java2s;
/* //from   ww  w .j av a2s .  co  m
 * Copyright (c) 2007-2008, Hazel Ltd. All Rights Reserved.
 * 
 * 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 int copyToHeapBuffer(ByteBuffer src, ByteBuffer dest) {
        int n = Math.min(src.remaining(), dest.remaining());
        if (n > 0) {
            int srcPosition = src.position();
            int destPosition = dest.position();

            int ixSrc = srcPosition + src.arrayOffset();
            int ixDest = destPosition + dest.arrayOffset();

            System.arraycopy(src.array(), ixSrc, dest.array(), ixDest, n);
            src.position(srcPosition + n);
            dest.position(destPosition + n);
        }
        return n;
    }
}

Related

1. copyFromStreamToBuffer(ByteBuffer out, DataInputStream in, int length)
2. copyOf(ByteBuffer payload)
3. copyRemaining(ByteBuffer src, ByteBuffer dst)
4. copyTo(ByteBuffer original, ByteBuffer copy)
5. copyToArray(@Nonnull ByteBuffer data)
6. copyToStream(ByteBuffer byteBuffer, OutputStream os)
7. copyWholeFrame(ByteBuffer srcFrame, ByteBuffer destFrame)
8. deepCopy(ByteBuffer orig)
9. deepCopyByteBufferToByteArray(ByteBuffer byteBuffer)