| /* |
| * 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 static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.PrintStream; |
| import java.util.Iterator; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.builtin.PigStorage; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.impl.io.FileLocalizer; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestFilterOpString { |
| |
| private final Log log = LogFactory.getLog(getClass()); |
| private static int LOOP_COUNT = 1024; |
| |
| private PigServer pig; |
| |
| @Before |
| public void setUp() throws Exception { |
| FileLocalizer.deleteTempFiles(); |
| pig = new PigServer(Util.getLocalTestMode()); |
| } |
| |
| @Test |
| public void testStringEq() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("a:" + i); |
| // test with nulls |
| ps.println("a:"); |
| ps.println(":a"); |
| ps.println(":"); |
| } else { |
| ps.println("ab:ab"); |
| expectedCount++; |
| } |
| } |
| ps.close(); |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 eq $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| count++; |
| assertEquals(first, second); |
| } |
| assertEquals(expectedCount, count); |
| } |
| |
| @Test |
| public void testStringNeq() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("ab:ab"); |
| } else if (i % 3 == 0) { |
| ps.println("ab:abc"); |
| expectedCount++; |
| } else { |
| // test with nulls |
| ps.println(":"); |
| ps.println("ab:"); |
| ps.println(":ab"); |
| } |
| } |
| ps.close(); |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 neq $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| assertFalse(first.equals(second)); |
| count++; |
| } |
| assertEquals(expectedCount, count); |
| } |
| |
| @Test |
| public void testStringGt() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("b:a"); |
| expectedCount++; |
| } else { |
| ps.println("a:b"); |
| // test with nulls |
| ps.println("a:"); |
| ps.println(":b"); |
| ps.println(":"); |
| |
| } |
| } |
| ps.close(); |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 gt $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| assertTrue(first.compareTo(second) > 0); |
| count++; |
| } |
| assertEquals(expectedCount, count); |
| } |
| |
| |
| |
| @Test |
| public void testStringGte() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("b:a"); |
| expectedCount++; |
| }else if(i % 3 == 0) { |
| ps.println("b:b"); |
| expectedCount++; |
| } else { |
| ps.println("a:b"); |
| // test with nulls |
| ps.println("a:"); |
| ps.println(":b"); |
| ps.println(":"); |
| } |
| } |
| ps.close(); |
| |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 gte $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| assertTrue(first.compareTo(second) >= 0); |
| count++; |
| } |
| assertEquals(expectedCount, count); |
| } |
| |
| @Test |
| public void testStringLt() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("b:a"); |
| // test with nulls |
| ps.println("a:"); |
| ps.println(":b"); |
| ps.println(":"); |
| } else { |
| ps.println("a:b"); |
| expectedCount++; |
| } |
| } |
| ps.close(); |
| |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 lt $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| assertTrue(first.compareTo(second) < 0); |
| count++; |
| } |
| assertEquals(expectedCount, count); |
| } |
| |
| @Test |
| public void testStringLte() throws Throwable { |
| File tmpFile = File.createTempFile("test", "txt"); |
| PrintStream ps = new PrintStream(new FileOutputStream(tmpFile)); |
| int expectedCount = 0; |
| for(int i = 0; i < LOOP_COUNT; i++) { |
| if(i % 5 == 0) { |
| ps.println("b:a"); |
| // test with nulls |
| ps.println("a:"); |
| ps.println(":b"); |
| ps.println(":"); |
| }else if(i % 3 == 0) { |
| ps.println("b:b"); |
| expectedCount++; |
| } else { |
| ps.println("a:b"); |
| expectedCount++; |
| } |
| } |
| ps.close(); |
| |
| pig.registerQuery("A=load '" |
| + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) |
| + "' using " + PigStorage.class.getName() + "(':');"); |
| String query = "A = filter A by $0 lte $1;"; |
| |
| log.info(query); |
| pig.registerQuery(query); |
| Iterator<Tuple> it = pig.openIterator("A"); |
| tmpFile.delete(); |
| int count = 0; |
| while(it.hasNext()) { |
| Tuple t = it.next(); |
| String first = t.get(0).toString(); |
| String second = t.get(1).toString(); |
| assertTrue(first.compareTo(second) <= 0); |
| count++; |
| } |
| assertEquals(expectedCount, count); |
| } |
| } |