/*
* 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.ExecType;
import org.apache.pig.PigServer;
import org.apache.pig.builtin.PigStorage;
import org.apache.pig.data.Tuple;
import org.junit.Before;
import org.junit.Test;
public class TestFilterOpNumeric {
private final Log log = LogFactory.getLog(getClass());
private static int LOOP_COUNT = 1024;
private PigServer pig;
@Before
public void setUp() throws Exception {
pig = new PigServer(ExecType.LOCAL);
}
@Test
public void testNumericEq() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println(i + ":" + (double)i);
} else {
ps.println(i + ":" + (i-1));
}
}
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 == $1 and $0 <= $1);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertEquals(first, second);
String sfirst = t.get(0).toString();
String ssecond = t.get(1).toString();
assertFalse(sfirst.equals(ssecond));
}
}
@Test
public void testNumericNeq() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println("1:1");
} else {
ps.println("2:3");
}
}
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 != $1;";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertFalse(first.equals(second));
}
}
@Test
public void testNumericGt() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println(i + ":" + (double)i);
} else {
ps.println(i+1 + ":" + (double)(i));
}
}
ps.close();
pig.registerQuery("A=load '"
+ Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) + "' using "
+ PigStorage.class.getName() + "(':') as (f1: double, f2:double);");
String query = "A = filter A by ($0 > $1 and $0 >= $1);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertTrue(first.compareTo(second) > 0);
}
}
@Test
public void testBinCond() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
ps.println(i + "\t" + i + "\t1");
}
ps.close();
pig.registerQuery("A=load '"
+ Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) + "';");
String query = "A = foreach A generate ($1 >= "+ LOOP_COUNT+"-10?'1':'0');";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
int count =0;
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
if (first == 1)
count++;
else
assertTrue(first == 0);
}
assertEquals("expected count of 10", 10, count);
}
@Test
public void testNestedBinCond() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
ps.println(i + "\t" + i + "\t1");
}
ps.close();
pig.registerQuery("A=load '"
+ Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext())) + "';");
String query = "A = foreach A generate (($0 < 10 or $0 < 9)?(($1 >= 5 and $1 >= 4) ? 2: 1) : 0);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
int count =0;
while(it.hasNext()) {
Tuple t = it.next();
Integer first = (Integer)t.get(0);
count+=first;
assertTrue(first == 1 || first == 2 || first == 0);
}
assertEquals("expected count of 15", 15, count);
}
@Test
public void testNumericLt() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println(i + ":" + (double)i);
} else {
ps.println(i + ":" + (double)(i+1));
}
}
ps.close();
pig.registerQuery("A=load '"
+ Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext()))
+ "' using " + PigStorage.class.getName() + "(':') as (a: double, b:double);");
String query = "A = filter A by ($0 <= $1 and $0 < $1);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertTrue(first.compareTo(second) < 0);
}
}
@Test
public void testNumericGte() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println(i + ":" + (double)i);
} else if(i % 3 == 0){
ps.println(i-1 + ":" + (double)(i));
} else {
ps.println(i+1 + ":" + (double)(i));
}
}
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 > $1 or $0 >= $1);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertTrue(first.compareTo(second) >= 0);
}
}
@Test
public void testNumericLte() throws Throwable {
File tmpFile = File.createTempFile("test", "txt");
PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
for(int i = 0; i < LOOP_COUNT; i++) {
if(i % 5 == 0) {
ps.println(i + ":" + (double)i);
} else if(i % 3 == 0){
ps.println(i-1 + ":" + (double)(i));
} else {
ps.println(i+1 + ":" + (double)(i));
}
}
ps.close();
pig.registerQuery("A=load '"
+ Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext()))
+ "' using " + PigStorage.class.getName() + "(':') as (a: double, b:double);");
String query = "A = filter A by ($0 <= $1 or $0 < $1);";
log.info(query);
pig.registerQuery(query);
Iterator<Tuple> it = pig.openIterator("A");
tmpFile.delete();
while(it.hasNext()) {
Tuple t = it.next();
Double first = Double.valueOf(t.get(0).toString());
Double second = Double.valueOf(t.get(1).toString());
assertTrue(first.compareTo(second) <= 0);
}
}
}