Java List Combine combine(final List dataChunks)

Description

Combines a list of byte arrays into one big byte array.

License

Open Source License

Parameter

Parameter	Description
dataChunks	The list of byte arrays.

Return

The one big byte array.

Declaration

public static byte[] combine(final List<byte[]> dataChunks) 

Method Source Code

//package com.java2s;
/*/* w  ww . j a  v a 2 s  . c  o  m*/
Copyright 2015 Google Inc. 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.util.List;

public class Main {
    /**
     * Combines a list of byte arrays into one big byte array.
     * 
     * @param dataChunks The list of byte arrays.
     * 
     * @return The one big byte array.
     */
    public static byte[] combine(final List<byte[]> dataChunks) {
        int totalSize = 0;

        for (final byte[] dataPart : dataChunks) {
            totalSize += dataPart.length;
        }

        final byte[] data = new byte[totalSize];

        int index = 0;

        for (final byte[] dataPart : dataChunks) {
            System.arraycopy(dataPart, 0, data, index, dataPart.length);

            index += dataPart.length;
        }

        return data;
    }
}

Related

1. combine(final List r, final char sep)
2. combine(final List list, final List list2)
3. combine(int sign, List exponentBits, List mantissaBits)
4. combine(List r, char sep)
5. combine(List> lists)