/tags/release-0.1-rc2/hive/external/serde/src/java/org/apache/hadoop/hive/serde2/ByteStreamTypedSerDe.java

/**
 * 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.hadoop.hive.serde2;

import java.lang.reflect.Type;

import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.Writable;

/**
 * ByteStreamTypedSerDe.
 *
 */
public abstract class ByteStreamTypedSerDe extends TypedSerDe {

  protected ByteStream.Input bis;
  protected ByteStream.Output bos;

  public ByteStreamTypedSerDe(Type objectType) throws SerDeException {
    super(objectType);
    bos = new ByteStream.Output();
    bis = new ByteStream.Input();
  }

  @Override
  public Object deserialize(Writable field) throws SerDeException {
    Object retObj = super.deserialize(field);
    BytesWritable b = (BytesWritable) field;
    bis.reset(b.get(), b.getSize());
    return (retObj);
  }

}