package org.apache.blur.spark;
/**
* 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.
*/
import org.apache.hadoop.io.Text;
import org.apache.spark.HashPartitioner;
public class BlurSparkPartitioner extends HashPartitioner {
private static final long serialVersionUID = 9853263327838L;
private final int _totalShard;
public BlurSparkPartitioner(int partitions) {
super(partitions);
_totalShard = partitions;
}
@Override
public int getPartition(Object key) {
if (key instanceof Text) {
return (key.hashCode() & Integer.MAX_VALUE) % _totalShard;
} else {
return super.getPartition(key);
}
}
}