/*
* 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.mapReduceLayer;
import com.google.common.collect.Lists;
import org.apache.hadoop.conf.Configuration;
import org.apache.pig.LoadFunc;
import org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLoad;
import org.apache.pig.builtin.PigStorage;
import org.apache.pig.test.PigStorageWithStatistics;
import org.apache.pig.test.TestJobControlCompiler;
import org.junit.Assert;
import org.junit.Test;
public class TestInputSizeReducerEstimator {
private static final Configuration CONF = new Configuration();
@Test
public void testGetInputSizeFromFs() throws Exception {
long size = 2L * 1024 * 1024 * 1024;
Assert.assertEquals(size, InputSizeReducerEstimator.getTotalInputFileSize(
CONF, Lists.newArrayList(createPOLoadWithSize(size, new PigStorage())),
new org.apache.hadoop.mapreduce.Job(CONF)));
Assert.assertEquals(size, InputSizeReducerEstimator.getTotalInputFileSize(
CONF,
Lists.newArrayList(createPOLoadWithSize(size, new PigStorageWithStatistics())),
new org.apache.hadoop.mapreduce.Job(CONF)));
Assert.assertEquals(size * 2, InputSizeReducerEstimator.getTotalInputFileSize(
CONF,
Lists.newArrayList(
createPOLoadWithSize(size, new PigStorage()),
createPOLoadWithSize(size, new PigStorageWithStatistics())),
new org.apache.hadoop.mapreduce.Job(CONF)));
}
@Test
public void testGetInputSizeFromLoader() throws Exception {
long size = 2L * 1024 * 1024 * 1024;
Assert.assertEquals(size, InputSizeReducerEstimator.getInputSizeFromLoader(
createPOLoadWithSize(size, new PigStorageWithStatistics()),
new org.apache.hadoop.mapreduce.Job(CONF)));
}
private static POLoad createPOLoadWithSize(long size, LoadFunc loadFunc) throws Exception {
return TestJobControlCompiler.createPOLoadWithSize(size, loadFunc);
}
}