| /** |
| * 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.mapred.nativetask; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.io.BooleanWritable; |
| import org.apache.hadoop.io.ByteWritable; |
| import org.apache.hadoop.io.BytesWritable; |
| import org.apache.hadoop.io.DoubleWritable; |
| import org.apache.hadoop.io.FloatWritable; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.io.VIntWritable; |
| import org.apache.hadoop.io.VLongWritable; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapred.nativetask.serde.*; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @InterfaceAudience.Private |
| public class HadoopPlatform extends Platform { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(HadoopPlatform.class); |
| |
| public HadoopPlatform() throws IOException { |
| } |
| |
| @Override |
| public void init() throws IOException { |
| registerKey(NullWritable.class.getName(), NullWritableSerializer.class); |
| registerKey(Text.class.getName(), TextSerializer.class); |
| registerKey(LongWritable.class.getName(), LongWritableSerializer.class); |
| registerKey(IntWritable.class.getName(), IntWritableSerializer.class); |
| registerKey(Writable.class.getName(), DefaultSerializer.class); |
| registerKey(BytesWritable.class.getName(), BytesWritableSerializer.class); |
| registerKey(BooleanWritable.class.getName(), BoolWritableSerializer.class); |
| registerKey(ByteWritable.class.getName(), ByteWritableSerializer.class); |
| registerKey(FloatWritable.class.getName(), FloatWritableSerializer.class); |
| registerKey(DoubleWritable.class.getName(), DoubleWritableSerializer.class); |
| registerKey(VIntWritable.class.getName(), VIntWritableSerializer.class); |
| registerKey(VLongWritable.class.getName(), VLongWritableSerializer.class); |
| |
| LOG.info("Hadoop platform inited"); |
| } |
| |
| @Override |
| public boolean support(String keyClassName, INativeSerializer<?> serializer, JobConf job) { |
| if (keyClassNames.contains(keyClassName) |
| && serializer instanceof INativeComparable) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean define(Class<?> comparatorClass) { |
| return false; |
| } |
| |
| @Override |
| public String name() { |
| return "Hadoop"; |
| } |
| } |