| /* |
| * 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.test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Iterator; |
| import java.util.Properties; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapreduce.RecordReader; |
| import org.apache.hadoop.mapreduce.lib.input.FileSplit; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigSplit; |
| import org.apache.pig.builtin.PigStorage; |
| import org.apache.pig.data.Tuple; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public class TestSplitIndex { |
| private PigServer pigServer; |
| File inputDir; |
| @Before |
| public void setUp() throws Exception{ |
| pigServer = new PigServer(Util.getLocalTestMode(), new Properties()); |
| inputDir = File.createTempFile("tmp", ""); |
| inputDir.delete(); |
| inputDir.mkdir(); |
| Util.createLocalInputFile(inputDir.getAbsolutePath()+"/1", new String[] {"1\t2"}); |
| Util.createLocalInputFile(inputDir.getAbsolutePath()+"/2", new String[] {"3\t4"}); |
| } |
| |
| @Test |
| public void testSplitIndex() throws Exception { |
| pigServer.registerQuery("a = load '" + Util.encodeEscape(inputDir.toString()) + "' using " + SplitSensitiveLoadFunc.class.getName() + "();"); |
| Iterator<Tuple> iter = pigServer.openIterator("a"); |
| |
| boolean file1exist=false, file2exist=false; |
| Tuple t = iter.next(); |
| if (t.get(2).toString().endsWith("/1")) |
| file1exist = true; |
| if (t.get(2).toString().endsWith("/2")) |
| file2exist = true; |
| t = iter.next(); |
| if (t.get(2).toString().endsWith("/1")) |
| file1exist = true; |
| if (t.get(2).toString().endsWith("/2")) |
| file2exist = true; |
| if (!file1exist || !file2exist) |
| Assert.fail(); |
| } |
| |
| @Test |
| public void testSplitIndexNoCombine() throws Exception { |
| pigServer.getPigContext().getProperties().setProperty("pig.splitCombination", "false"); |
| pigServer.registerQuery("a = load '" + Util.encodeEscape(inputDir.toString()) + "' using " + SplitSensitiveLoadFunc.class.getName() + "();"); |
| Iterator<Tuple> iter = pigServer.openIterator("a"); |
| |
| boolean file1exist=false, file2exist=false; |
| Tuple t = iter.next(); |
| if (t.get(2).toString().endsWith("/1")) |
| file1exist = true; |
| if (t.get(2).toString().endsWith("/2")) |
| file2exist = true; |
| t = iter.next(); |
| if (t.get(2).toString().endsWith("/1")) |
| file1exist = true; |
| if (t.get(2).toString().endsWith("/2")) |
| file2exist = true; |
| if (!file1exist || !file2exist) |
| Assert.fail(); |
| } |
| |
| public static class SplitSensitiveLoadFunc extends PigStorage { |
| Path path = null; |
| public SplitSensitiveLoadFunc() { |
| super(); |
| } |
| @Override |
| public void prepareToRead(RecordReader reader, PigSplit split) { |
| in = reader; |
| path = ((FileSplit)split.getWrappedSplit()).getPath(); |
| } |
| |
| @Override |
| public Tuple getNext() throws IOException { |
| Tuple myTuple = super.getNext(); |
| if (myTuple != null) |
| myTuple.append(path.toString()); |
| return myTuple; |
| } |
| } |
| } |