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     */
017    package org.apache.camel.converter.stream;
018    
019    import 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     */
028    public 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    }