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
   *
   *     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.cassandra.io.util;
  
  import java.io.IOException;
  import java.nio.BufferOverflowException;
  import java.nio.ByteBuffer;
  
  
  /**
   * An implementation of the DataOutputStream interface using a FastByteArrayOutputStream and exposing
   * its buffer so copies can be avoided. This version does not expand if it runs out of capacity and
   * throws BufferOverflowException instead.
   *
   * This class is completely thread unsafe.
   */
  public class DataOutputBufferFixed extends DataOutputBuffer
  {
      public DataOutputBufferFixed()
      {
          this(128);
      }
  
      public DataOutputBufferFixed(int size)
      {
          super(size);
      }
  
      public DataOutputBufferFixed(ByteBuffer buffer)
      {
          super(buffer);
      }
  
      @Override
      protected void doFlush(int count) throws IOException
      {
          throw new BufferOverflowException();
      }
  
      /*
       * Not currently reachable (all paths hit doFLush first), but in the spirit of things this should throw
       * if it is called.
       * @see org.apache.cassandra.io.util.DataOutputBuffer#reallocate(long)
       */
      @Override
      protected void expandToFit(long newSize)
      {
          throw new BufferOverflowException();
      }
  
      public void clear()
      {
          buffer.clear();
      }
  }
  