/**
 * 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.pig.backend.hadoop.executionengine.spark.running;

import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigHadoopLogger;
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat;
import org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator;
import org.apache.pig.data.Tuple;
import org.apache.pig.impl.util.UDFContext;
import org.apache.pig.tools.pigstats.PigStatusReporter;

import java.io.IOException;

public class PigInputFormatSpark extends PigInputFormat {
	@Override
	public RecordReader<Text, Tuple> createRecordReader(InputSplit split,
			TaskAttemptContext context) throws IOException,
			InterruptedException {
		init();
		resetUDFContext();
		return super.createRecordReader(split, context);
	}

	private void resetUDFContext() {
		UDFContext.getUDFContext().reset();
	}

	private void init() {
		PigStatusReporter pigStatusReporter = PigStatusReporter.getInstance();
		PigHadoopLogger pigHadoopLogger = PigHadoopLogger.getInstance();
		pigHadoopLogger.setReporter(pigStatusReporter);
		PhysicalOperator.setPigLogger(pigHadoopLogger);
	}
}