001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.converter.stream;
018
019import java.io.ByteArrayOutputStream;
020
021/**
022 * A {@link ByteArrayOutputStream} that is capable of returning a
023 * {@link InputStreamCache} view of the buffer.
024 * <p/>
025 * This implementation avoids any buffer copying when caching in memory {@link java.io.InputStream}
026 * as the buffer can be shared.
027 */
028public final class CachedByteArrayOutputStream extends ByteArrayOutputStream {
029
030    public CachedByteArrayOutputStream(int size) {
031        super(size);
032    }
033
034    /**
035     * Creates a new {@link InputStreamCache} view of the byte array
036     */
037    public InputStreamCache newInputStreamCache() {
038        return new InputStreamCache(buf, count);
039    }
040}