hbase-common/src/main/java/org/apache/hadoop/hbase/io/ByteBufferWriterDataOutputStream.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.io;
  19
  20 import java.io.DataOutputStream;
  21 import java.io.IOException;
  22 import java.io.OutputStream;
  23 import java.nio.ByteBuffer;
  24
  25 import org.apache.hadoop.hbase.util.ByteBufferUtils;
  26 import org.apache.yetus.audience.InterfaceAudience;
  27
  28 /**
  29  * Our extension of DataOutputStream which implements ByteBufferWriter
  30  */
  31 @InterfaceAudience.Private
  32 public class ByteBufferWriterDataOutputStream extends DataOutputStream
  33     implements ByteBufferWriter {
  34
  35   public ByteBufferWriterDataOutputStream(OutputStream out) {
  36     super(out);
  37   }
  38
  39   @Override
  40   public void write(ByteBuffer b, int off, int len) throws IOException {
  41     ByteBufferUtils.copyBufferToStream(out, b, off, len);
  42     written += len;
  43   }
  44 }