| /* |
| * 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 |
| * |
| * 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. |
| */ |
| package org.apache.nemo.common; |
| |
| import java.io.ByteArrayOutputStream; |
| |
| /** |
| * This class represents a custom implementation of {@link ByteArrayOutputStream}, |
| * which enables to get bytes buffer directly (without memory copy). |
| * TODO #370: Substitute ByteArrayOutputStream with java.nio.ByteBuffer |
| */ |
| public final class DirectByteArrayOutputStream extends ByteArrayOutputStream { |
| |
| /** |
| * Default constructor. |
| */ |
| public DirectByteArrayOutputStream() { |
| super(); |
| } |
| |
| /** |
| * Constructor specifying the size. |
| * |
| * @param size the initial size. |
| */ |
| public DirectByteArrayOutputStream(final int size) { |
| super(size); |
| } |
| |
| /** |
| * Note that serializedBytes include invalid bytes. |
| * So we have to use it with the actualLength by using size() whenever needed. |
| * |
| * @return the buffer where data is stored. |
| */ |
| public byte[] getBufDirectly() { |
| return buf; |
| } |
| } |