Java ByteBuffer Capacity ensureCapacity(ByteBuffer original, int newCapacity)

Description

ensure Capacity

License

Apache License

Declaration

static ByteBuffer ensureCapacity(ByteBuffer original, int newCapacity) 

Method Source Code

//package com.java2s;
/*/*from  w ww  .  j a va2s .co  m*/
 * Copyright 2017 Rafael Villar Villar
 *
 * 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 {
    static ByteBuffer ensureCapacity(ByteBuffer original, int newCapacity) {
        if (newCapacity <= original.capacity()) {
            return original;
        }

        int position = original.position();
        int limit = original.limit();

        original.clear();
        ByteBuffer newBuffer = ByteBuffer.allocate(newCapacity);
        newBuffer.put(original);
        newBuffer.position(position);
        newBuffer.limit(limit);
        return newBuffer;

    }
}

Related

1. borrowByteBuffer(final int capacity)
2. ensureCapacity(ByteBuffer buff, int len)
3. ensureCapacity(ByteBuffer buffer, int capacity)
4. ensureCapacity(ByteBuffer existingBuffer, int newLength)
5. expand(ByteBuffer buffer, int newCapacity)
6. getByteBuffer(int capacity)
7. grow(ByteBuffer buffer, int minCapacityIncrease)
8. growBuffer(ByteBuffer b, int newCapacity)