| /* |
| * 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.io.PrintWriter; |
| import java.util.Iterator; |
| |
| import org.apache.pig.PigServer; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.impl.io.FileLocalizer; |
| import org.apache.pig.backend.executionengine.ExecException; |
| import static org.apache.pig.PigServer.ExecType.MAPREDUCE; |
| |
| import junit.framework.TestCase; |
| |
| public class TestStore extends PigExecTestCase { |
| |
| private int LOOP_COUNT = 1024; |
| String fileName; |
| String tmpFile1, tmpFile2; |
| |
| public void testSingleStore() throws Exception{ |
| pigServer.registerQuery("A = load " + Util.encodeEscape(fileName.toString()) + ";"); |
| |
| pigServer.store("A", Util.encodeEscape(tmpFile1.toString())); |
| |
| pigServer.registerQuery("B = load " + Util.encodeEscape(tmpFile1.toString()) + ";"); |
| Iterator<Tuple> iter = pigServer.openIterator("B"); |
| |
| int i =0; |
| while (iter.hasNext()){ |
| Tuple t = iter.next(); |
| assertEquals(t.getAtomField(0).numval().intValue(),i); |
| assertEquals(t.getAtomField(1).numval().intValue(),i); |
| i++; |
| } |
| } |
| |
| public void testMultipleStore() throws Exception{ |
| pigServer.registerQuery("A = load " + Util.encodeEscape(fileName.toString()) + ";"); |
| |
| pigServer.store("A", Util.encodeEscape(tmpFile1.toString())); |
| |
| pigServer.registerQuery("B = foreach (group A by $0) generate $0, SUM($1);"); |
| pigServer.store("B", Util.encodeEscape(tmpFile2.toString()));
|
| pigServer.registerQuery("C = load " + Util.encodeEscape(tmpFile2.toString()) + ";"); |
| Iterator<Tuple> iter = pigServer.openIterator("C"); |
| |
| int i =0; |
| while (iter.hasNext()){ |
| Tuple t = iter.next(); |
| i++; |
| |
| } |
| |
| assertEquals(LOOP_COUNT, i); |
| |
| } |
| |
| public void testStoreWithMultipleMRJobs() throws Exception{ |
| pigServer.registerQuery("A = load " + Util.encodeEscape(fileName.toString()) + ";"); |
| pigServer.registerQuery("B = foreach (group A by $0) generate $0, SUM($1);"); |
| pigServer.registerQuery("C = foreach (group B by $0) generate $0, SUM($1);"); |
| pigServer.registerQuery("D = foreach (group C by $0) generate $0, SUM($1);"); |
| |
| pigServer.store("D", Util.encodeEscape(tmpFile2.toString()));
|
| pigServer.registerQuery("E = load " + Util.encodeEscape(tmpFile2.toString()) + ";"); |
| Iterator<Tuple> iter = pigServer.openIterator("E"); |
| |
| int i =0; |
| while (iter.hasNext()){ |
| Tuple t = iter.next(); |
| i++; |
| } |
| |
| assertEquals(LOOP_COUNT, i); |
| |
| } |
| |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| File f = File.createTempFile("tmp", ""); |
| PrintWriter pw = new PrintWriter(f); |
| for (int i=0;i<LOOP_COUNT; i++){ |
| pw.println(i + "\t" + i); |
| } |
| pw.close(); |
| |
| fileName = "'" + FileLocalizer.hadoopify(f.toString(), pigServer.getPigContext()) + "'"; |
| tmpFile1 = "'" + FileLocalizer.getTemporaryPath(null, pigServer.getPigContext()).toString() + "'"; |
| tmpFile2 = "'" + FileLocalizer.getTemporaryPath(null, pigServer.getPigContext()).toString() + "'"; |
| f.delete(); |
| } |
| |
| |
| public void testDelimiter() throws IOException{ |
| System.out.println("Temp files: " + tmpFile1 + ", " + tmpFile2); |
| pigServer.registerQuery("A = load " + fileName + ";"); |
| pigServer.store("A", tmpFile1, "PigStorage('\u0001')"); |
| pigServer.registerQuery("B = load " + tmpFile1 + "using PigStorage('\\u0001') ;"); |
| pigServer.registerQuery("C = foreach B generate $0, $1;"); |
| pigServer.store("C", tmpFile2); |
| pigServer.registerQuery("E = load " + tmpFile2 + ";"); |
| Iterator<Tuple> iter = pigServer.openIterator("E"); |
| int i =0; |
| while (iter.hasNext()) { |
| Tuple t = iter.next(); |
| assertEquals(t.getAtomField(0).numval().intValue(),i); |
| assertEquals(t.getAtomField(1).numval().intValue(),i); i++; |
| } |
| } |
| |
| } |