/*
* 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.flink.hadoopcompatibility.mapred.record.datatypes;
import org.apache.flink.types.BooleanValue;
import org.apache.flink.types.ByteValue;
import org.apache.flink.types.DoubleValue;
import org.apache.flink.types.FloatValue;
import org.apache.flink.types.IntValue;
import org.apache.flink.types.LongValue;
import org.apache.flink.types.NullValue;
import org.apache.flink.types.Record;
import org.apache.flink.types.StringValue;
import org.apache.flink.types.Value;
import org.apache.hadoop.io.BooleanWritable;
import org.apache.hadoop.io.ByteWritable;
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;
/**
* Converter for the default hadoop writables.
* Key will be in field 0, Value in field 1 of a Record.
*/
public class DefaultHadoopTypeConverter<K, V> implements HadoopTypeConverter<K, V> {
private static final long serialVersionUID = 1L;
@Override
public void convert(Record flinkRecord, K hadoopKey, V hadoopValue) {
flinkRecord.setField(0, convert(hadoopKey));
flinkRecord.setField(1, convert(hadoopValue));
}
protected Value convert(Object hadoopType) {
if(hadoopType instanceof org.apache.hadoop.io.LongWritable ) {
return new LongValue(((LongWritable)hadoopType).get());
}
if(hadoopType instanceof org.apache.hadoop.io.Text) {
return new StringValue(((Text)hadoopType).toString());
}
if(hadoopType instanceof org.apache.hadoop.io.IntWritable) {
return new IntValue(((IntWritable)hadoopType).get());
}
if(hadoopType instanceof org.apache.hadoop.io.FloatWritable) {
return new FloatValue(((FloatWritable)hadoopType).get());
}
if(hadoopType instanceof org.apache.hadoop.io.DoubleWritable) {
return new DoubleValue(((DoubleWritable)hadoopType).get());
}
if(hadoopType instanceof org.apache.hadoop.io.BooleanWritable) {
return new BooleanValue(((BooleanWritable)hadoopType).get());
}
if(hadoopType instanceof org.apache.hadoop.io.ByteWritable) {
return new ByteValue(((ByteWritable)hadoopType).get());
}
if (hadoopType instanceof NullWritable) {
return NullValue.getInstance();
}
throw new RuntimeException("Unable to convert Hadoop type ("+hadoopType.getClass().getCanonicalName()+") to a Flink data type.");
}
}