content: /*
   * 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
   *
   *     https://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.avro.util;
  
  import java.io.ByteArrayOutputStream;
  import java.nio.ByteBuffer;
  
  /**
   * Utility to make data written to an {@link ByteArrayOutputStream} directly
   * available as a {@link ByteBuffer}.
   */
  public class NonCopyingByteArrayOutputStream extends ByteArrayOutputStream {
  
    /**
     * Creates a new byte array output stream, with a buffer capacity of the
     * specified size, in bytes.
     *
     * @param size the initial size
     * @throws IllegalArgumentException if size is negative
     */
    public NonCopyingByteArrayOutputStream(int size) {
      super(size);
    }
  
    /**
     * Get the contents of this ByteArrayOutputStream wrapped as a ByteBuffer. This
     * is a shallow copy. Changes to this ByteArrayOutputstream "write through" to
     * the ByteBuffer.
     *
     * @return The contents of this ByteArrayOutputstream wrapped as a ByteBuffer
     */
    public ByteBuffer asByteBuffer() {
      return ByteBuffer.wrap(super.buf, 0, super.count);
    }
  }
  