/*
* 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.tez;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.apache.pig.PigServer;
import org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PhysicalPlan;
import org.apache.pig.backend.hadoop.executionengine.tez.TezExecType;
import org.apache.pig.backend.hadoop.executionengine.tez.TezLauncher;
import org.apache.pig.impl.PigContext;
import org.apache.pig.test.MiniGenericCluster;
import org.apache.pig.test.Util;
import org.apache.pig.tools.pigstats.PigStats;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Test cases to test the TezLauncher.
*/
public class TestTezLauncher {
private static PigContext pc;
private static PigServer pigServer;
private static MiniGenericCluster cluster;
private static final String INPUT_FILE = "TestTezLauncherInput";
private static final String[] INPUT_RECORDS = {
"100\tapple",
"200\torange",
"300\tstrawberry",
"300\tpear",
"100\tapple",
"300\tpear",
"400\tapple",
};
private static final String OUTPUT_FILE = "TestTezLauncherOutput";
private static final String[] OUTPUT_RECORDS = {
"all\t{(apple),(pear),(pear),(strawberry),(orange)}"
};
@BeforeClass
public static void setUpBeforeClass() throws Exception {
cluster = MiniGenericCluster.buildCluster(MiniGenericCluster.EXECTYPE_TEZ);
pc = new PigContext(new TezExecType(), cluster.getProperties());
Util.createInputFile(cluster, INPUT_FILE, INPUT_RECORDS);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
cluster.shutDown();
}
@Before
public void setUp() throws Exception {
pigServer = new PigServer(pc);
}
@After
public void tearDown() throws Exception {
Util.deleteFile(cluster, OUTPUT_FILE);
}
@Test
public void testRun1() throws Exception {
String query =
"a = load '" + INPUT_FILE + "' as (x:int, y:chararray);" +
"b = filter a by x > 100;" +
"c = foreach b generate y;" +
"d = group c all;" +
"store d into '" + OUTPUT_FILE + "';";
PhysicalPlan pp = Util.buildPp(pigServer, query);
TezLauncher launcher = new TezLauncher();
PigStats pigStats = launcher.launchPig(pp, "testRun1", pc);
assertTrue(pigStats.isSuccessful());
String[] output = Util.readOutput(cluster.getFileSystem(), OUTPUT_FILE);
for (int i = 0; i < output.length; i++) {
assertEquals(OUTPUT_RECORDS[i], output[i]);
}
assertEquals(1, pigStats.getInputStats().size());
assertEquals(INPUT_FILE, pigStats.getInputStats().get(0).getName());
assertEquals(1, pigStats.getOutputStats().size());
assertEquals(OUTPUT_FILE, pigStats.getOutputStats().get(0).getName());
}
}