/*
* 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.apache.pig.builtin.mock.Storage.resetData;
import static org.apache.pig.builtin.mock.Storage.tuple;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StringReader;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Random;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.Job;
import org.apache.pig.ExecType;
import org.apache.pig.PigServer;
import org.apache.pig.ResourceSchema;
import org.apache.pig.backend.executionengine.ExecException;
import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil;
import org.apache.pig.builtin.mock.Storage;
import org.apache.pig.builtin.mock.Storage.Data;
import org.apache.pig.data.DataType;
import org.apache.pig.data.Tuple;
import org.apache.pig.impl.PigContext;
import org.apache.pig.impl.io.FileLocalizer;
import org.apache.pig.impl.logicalLayer.FrontendException;
import org.apache.pig.impl.logicalLayer.schema.Schema;
import org.apache.pig.impl.util.PropertiesUtil;
import org.apache.pig.impl.util.Utils;
import org.apache.pig.tools.grunt.Grunt;
import org.apache.pig.tools.grunt.GruntParser;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import com.google.common.io.Files;
public class TestPigServer {
private PigServer pig = null;
static MiniCluster cluster = MiniCluster.buildCluster();
private File tempDir;
@Before
public void setUp() throws Exception{
FileLocalizer.setInitialized(false);
pig = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
tempDir = Files.createTempDir();
tempDir.deleteOnExit();
registerNewResource(tempDir.getAbsolutePath());
}
@After
public void tearDown() throws Exception{
pig = null;
tempDir.delete();
}
@AfterClass
public static void oneTimeTearDown() throws Exception {
cluster.shutDown();
}
private final static String FILE_SEPARATOR = System.getProperty("file.separator");
// make sure that name is included or not (depending on flag "included")
// in the given list of stings
private static void verifyStringContained(List<URL> list, String name, boolean included) {
int count = 0;
for (URL url : list) {
if (url.toString().contains(name)) {
if (!included) {
fail("Included is false, but url ["+url+"] contains name ["+name+"]");
}
assertEquals("Too many urls contain name: " + name, 1, ++count);
}
}
if (included) {
assertEquals("Number of urls that contain name [" + name + "] != 1", 1, count);
}
}
// creates an empty jar file
private static void createFakeJarFile(String location, String name)
throws IOException {
createFakeJarFile(location, name,
FileSystem.getLocal(cluster.getConfiguration()).getRaw());
}
// creates an empty jar file
private static void createFakeJarFile(String location, String name, FileSystem fs)
throws IOException {
System.err. println("Location: " + location + " name: " + name);
Path dir = new Path(location);
fs.mkdirs(dir);
assertTrue(fs.createNewFile(new Path(dir, name)));
}
// dynamically add more resources to the system class loader
private static void registerNewResource(String file) throws Exception {
URL urlToAdd = new File(file).toURI().toURL();
URLClassLoader sysLoader = (URLClassLoader) ClassLoader.getSystemClassLoader();
Method addMethod = URLClassLoader.class.
getDeclaredMethod("addURL",
new Class[]{URL.class});
addMethod.setAccessible(true);
addMethod.invoke(sysLoader, new Object[]{urlToAdd});
}
/**
* The jar file to register is not present
*/
@Test
public void testRegisterJarFileNotPresent() throws Throwable {
// resister a jar file that does not exist
String jarName = "BadFileNameTestJarNotPresent.jar";
// jar name is not present to start with
verifyStringContained(pig.getPigContext().extraJars, jarName, false);
boolean raisedException = false;
try {
pig.registerJar(jarName);
} catch (IOException e) {
raisedException = true;
}
assertTrue("registerJar on jarName ["+jarName+"] should have raised an exception", raisedException);
verifyStringContained(pig.getPigContext().extraJars, jarName, false);
}
/**
* Jar file to register is not present in the system resources
* in this case name of jar file is relative to current working dir
*/
@Test
public void testRegisterJarLocalDir() throws Throwable {
String dir1 = "test1_register_jar_local";
String dir2 = "test2_register_jar_local";
String jarLocation = dir1 + FILE_SEPARATOR +
dir2 + FILE_SEPARATOR;
String jarName = "TestRegisterJarLocal.jar";
createFakeJarFile(jarLocation, jarName);
verifyStringContained(pig.getPigContext().extraJars, jarName, false);
pig.registerJar(jarLocation + jarName);
verifyStringContained(pig.getPigContext().extraJars, jarName, true);
// clean-up
assertTrue((new File(jarLocation + jarName)).delete());
(new File(dir1 + FILE_SEPARATOR + dir2)).delete();
(new File(dir1)).delete();
}
/**
* Jar file is located via system resources
* Test verifies that even with multiple resources matching,
* only one of them is registered.
*/
@Test
public void testRegisterJarFromResources () throws Throwable {
String dir = "test_register_jar_res_dir";
String subDir1 = "test_register_jar_res_sub_dir1";
String subDir2 = "test_register_jar_res_sub_dir2";
String jarName = "TestRegisterJarFromRes.jar";
String jarLocation1 = dir + FILE_SEPARATOR + subDir1 + FILE_SEPARATOR;
String jarLocation2 = dir + FILE_SEPARATOR + subDir2 + FILE_SEPARATOR;
createFakeJarFile(jarLocation1, jarName);
createFakeJarFile(jarLocation2, jarName);
verifyStringContained(pig.getPigContext().extraJars, jarName, false);
registerNewResource(jarLocation1);
registerNewResource(jarLocation2);
pig.registerJar(jarName);
verifyStringContained(pig.getPigContext().extraJars, jarName, true);
// clean-up
assertTrue((new File(jarLocation1 + jarName)).delete());
assertTrue((new File(jarLocation2 + jarName)).delete());
(new File(jarLocation1)).delete();
(new File(jarLocation2)).delete();
(new File(dir)).delete();
}
/**
* Use a resource inside a jar file.
* Verify that the containing jar file is registered correctly.
* @throws Exception
*/
@Test
public void testRegisterJarResourceInJar() throws Throwable {
String dir = "test_register_jar_res_in_jar";
String subDir = "sub_dir";
String jarName = "TestRegisterJarNonEmpty.jar";
String className = "TestRegisterJar";
String javaSrc = "package " + subDir + "; class " + className + " { }";
// create dirs
(new File(dir + FILE_SEPARATOR + subDir)).mkdirs();
// generate java file
FileOutputStream outStream =
new FileOutputStream(new File(dir + FILE_SEPARATOR + subDir +
FILE_SEPARATOR + className + ".java"));
OutputStreamWriter outWriter = new OutputStreamWriter(outStream);
outWriter.write(javaSrc);
outWriter.close();
// compile
int status;
status = Util.executeJavaCommand("javac " + dir + FILE_SEPARATOR + subDir +
FILE_SEPARATOR + className + ".java");
assertEquals(0, status);
// remove src file
(new File(dir + FILE_SEPARATOR + subDir +
FILE_SEPARATOR + className + ".java")).delete();
// generate jar file
status = Util.executeJavaCommand("jar -cf " + dir + FILE_SEPARATOR + jarName + " " +
"-C " + dir + " " + subDir);
assertEquals(0, status);
// remove class file and sub_dir
(new File(dir + FILE_SEPARATOR + subDir +
FILE_SEPARATOR + className + ".class")).delete();
(new File(dir + FILE_SEPARATOR + subDir)).delete();
// register resource
registerNewResource(dir + FILE_SEPARATOR + jarName);
// load the specific resource
boolean exceptionRaised = false;
try {
pig.registerJar("sub_dir/TestRegisterJar.class");
}
catch (IOException e) {
exceptionRaised = true;
}
// verify proper jar file is located
assertFalse(exceptionRaised);
verifyStringContained(pig.getPigContext().extraJars, jarName, true);
// clean up Jar file and test dir
(new File(dir + FILE_SEPARATOR + jarName)).delete();
(new File(dir)).delete();
}
@Test
public void testRegisterJarGlobbingRelative() throws Throwable {
String dir = "test1_register_jar_globbing_relative";
String jarLocation = dir + FILE_SEPARATOR;
String jar1Name = "TestRegisterJarGlobbing1.jar";
String jar2Name = "TestRegisterJarGlobbing2.jar";
createFakeJarFile(jarLocation, jar1Name);
createFakeJarFile(jarLocation, jar2Name);
pig.registerJar(jarLocation + "TestRegisterJarGlobbing*.jar");
verifyStringContained(pig.getPigContext().extraJars, jar1Name, true);
verifyStringContained(pig.getPigContext().extraJars, jar2Name, true);
// clean-up
assertTrue((new File(jarLocation + jar1Name)).delete());
assertTrue((new File(jarLocation + jar2Name)).delete());
(new File(dir)).delete();
}
@Test
public void testRegisterJarGlobbingAbsolute() throws Throwable {
String dir = "test1_register_jar_globbing_absolute";
String jarLocation = dir + FILE_SEPARATOR;
String jar1Name = "TestRegisterJarGlobbing1.jar";
String jar2Name = "TestRegisterJarGlobbing2.jar";
createFakeJarFile(jarLocation, jar1Name);
createFakeJarFile(jarLocation, jar2Name);
String currentDir = System.getProperty("user.dir");
pig.registerJar(new File(currentDir, dir) + FILE_SEPARATOR + "TestRegisterJarGlobbing*.jar");
verifyStringContained(pig.getPigContext().extraJars, jar1Name, true);
verifyStringContained(pig.getPigContext().extraJars, jar2Name, true);
// clean-up
assertTrue((new File(jarLocation + jar1Name)).delete());
assertTrue((new File(jarLocation + jar2Name)).delete());
(new File(dir)).delete();
}
@Test
public void testRegisterRemoteGlobbingJar() throws Throwable {
String dir = "test1_register_remote_jar_globbing";
String jarLocation = dir + FILE_SEPARATOR;
String jar1Name = "TestRegisterRemoteJarGlobbing1.jar";
String jar2Name = "TestRegisterRemoteJarGlobbing2.jar";
FileSystem fs = cluster.getFileSystem();
createFakeJarFile(jarLocation, jar1Name, fs);
createFakeJarFile(jarLocation, jar2Name, fs);
// find the absolute path for the directory so that it does not
// depend on configuration
String absPath = fs.getFileStatus(new Path(jarLocation)).getPath().toString();
pig.registerJar(absPath + FILE_SEPARATOR + "TestRegister{Remote}Jar*.jar");
verifyStringContained(pig.getPigContext().extraJars, jar1Name, true);
verifyStringContained(pig.getPigContext().extraJars, jar2Name, true);
// clean-up
assertTrue(fs.delete(new Path(jarLocation), true));
}
public void testDescribeLoad() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
Schema dumpedSchema = pig.dumpSchema("a") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: float,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeFilter() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = filter a by field1 > 10;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: float,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeDistinct() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = distinct a ;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: float,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeSort() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = order a by * desc;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: float,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeLimit() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = limit a 10;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: float,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeForeach() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = foreach a generate field1 + 10;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = new Schema(new Schema.FieldSchema(null, DataType.INTEGER));
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeForeachFail() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = foreach a generate field1 + 10;") ;
try {
pig.dumpSchema("c") ;
fail("Error expected");
} catch (Exception e) {
assertTrue(e.getMessage().contains("Unable to describe schema for alias c"));
}
}
@Test
public void testDescribeForeachNoSchema() throws Throwable {
pig.registerQuery("a = load 'a' ;") ;
pig.registerQuery("b = foreach a generate *;") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
assertNull(dumpedSchema);
}
@Test
public void testDescribeCogroup() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = load 'b' as (field4, field5: double, field6: chararray );") ;
pig.registerQuery("c = cogroup a by field1, b by field4;") ;
Schema dumpedSchema = pig.dumpSchema("c") ;
Schema expectedSchema = Utils.getSchemaFromString("group:int,a:{(field1:int,field2:float,field3:chararray)},b:{(field4:bytearray,field5:double,field6:chararray)}");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeCross() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = load 'b' as (field4, field5: double, field6: chararray );") ;
pig.registerQuery("c = cross a, b;") ;
Schema dumpedSchema = pig.dumpSchema("c") ;
Schema expectedSchema = Utils.getSchemaFromString("a::field1: int,a::field2: float,a::field3: chararray,b::field4: bytearray,b::field5: double,b::field6: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeJoin() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = load 'b' as (field4, field5: double, field6: chararray );") ;
pig.registerQuery("c = join a by field1, b by field4;") ;
Schema dumpedSchema = pig.dumpSchema("c");
Schema expectedSchema = Utils.getSchemaFromString("a::field1: int,a::field2: float,a::field3: chararray,b::field4: bytearray,b::field5: double,b::field6: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeUnion() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
pig.registerQuery("b = load 'b' as (field4, field5: double, field6: chararray );") ;
pig.registerQuery("c = union a, b;") ;
Schema dumpedSchema = pig.dumpSchema("c") ;
Schema expectedSchema = Utils.getSchemaFromString("field1: int,field2: double,field3: chararray");
assertEquals(expectedSchema, dumpedSchema);
}
@Test
public void testDescribeTuple2Elem() throws Throwable {
pig.registerQuery("a = load 'a' as (field1: int, field2: int, field3: int );") ;
pig.registerQuery("b = foreach a generate field1, (field2, field3);") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
assertTrue(dumpedSchema.getField(0).type==DataType.INTEGER);
assertTrue(dumpedSchema.getField(1).type==DataType.TUPLE);
}
@Test
public void testDescribeComplex() throws Throwable {
pig.registerQuery("a = load 'a' as (site: chararray, count: int, itemCounts: bag { itemCountsTuple: tuple (type: chararray, typeCount: int, f: float, m: map[]) } ) ;") ;
pig.registerQuery("b = foreach a generate site, count, FLATTEN(itemCounts);") ;
Schema dumpedSchema = pig.dumpSchema("b") ;
Schema expectedSchema = Utils.getSchemaFromString(
"site: chararray,count: int," +
"itemCounts::type: chararray,itemCounts::typeCount: int," +
"itemCounts::f: float,itemCounts::m: map[ ]");
assertEquals(expectedSchema, dumpedSchema);
}
private void registerScalarScript(boolean useScalar, String expectedSchemaStr) throws IOException {
pig.registerQuery("A = load 'adata' AS (a: int, b: int);");
//scalar
pig.registerQuery("C = FOREACH A GENERATE *;");
String overrideScalar = useScalar ? "C = FILTER A BY b % 2 == 0; " : "";
pig.registerQuery("B = FOREACH (GROUP A BY a) { " +
overrideScalar +
"D = FILTER A BY b % 2 == 1;" +
"GENERATE group AS a, A.b AS every, C.b AS even, D.b AS odd;" +
"};");
Schema dumpedSchema = pig.dumpSchema("B");
Schema expectedSchema = Utils.getSchemaFromString(
expectedSchemaStr);
assertEquals(expectedSchema, dumpedSchema);
}
// PIG-3581
@Test
public void testScalarPrecedence() throws Throwable {
registerScalarScript(true, "a: int,every: {(b: int)},even: {(b: int)},odd: {(b: int)}");
}
// PIG-3581
@Test
public void testScalarResolution() throws Throwable {
registerScalarScript(false, "a: int,every: {(b: int)},even: int,odd: {(b: int)}");
}
@Test
public void testExplainXmlComplex() throws Throwable {
pig.registerQuery("a = load 'a' as (site: chararray, count: int, itemCounts: bag { itemCountsTuple: tuple (type: chararray, typeCount: int, f: float, m: map[]) } ) ;") ;
pig.registerQuery("b = foreach a generate site, count, FLATTEN(itemCounts);") ;
pig.registerQuery("c = group b by site;");
pig.registerQuery("d = foreach c generate FLATTEN($1);");
pig.registerQuery("e = group d by $2;");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
pig.explain("e", "xml", true, false, ps, ps, null, null);
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(bais);
//Verify Logical and Physical Plans aren't supported.
NodeList logicalPlan = doc.getElementsByTagName("logicalPlan");
assertEquals(1, logicalPlan.getLength());
assertTrue(logicalPlan.item(0).getTextContent().contains("Not Supported"));
NodeList physicalPlan = doc.getElementsByTagName("physicalPlan");
assertEquals(1, physicalPlan.getLength());
assertTrue(physicalPlan.item(0).getTextContent().contains("Not Supported"));
//Verify we have two loads and one is temporary
NodeList loads = doc.getElementsByTagName("POLoad");
assertEquals(2, loads.getLength());
boolean sawTempLoad = false;
boolean sawNonTempLoad = false;
for (int i = 0; i < loads.getLength(); i++) {
Boolean isTempLoad = null;
boolean hasAlias = false;
Node poLoad = loads.item(i);
NodeList children = poLoad.getChildNodes();
for (int j = 0; j < children.getLength(); j++) {
Node child = children.item(j);
if (child.getNodeName().equals("alias")) {
hasAlias = true;
}
if (child.getNodeName().equals("isTmpLoad")) {
if (child.getTextContent().equals("false")) {
isTempLoad = false;
} else if (child.getTextContent().equals("true")) {
isTempLoad = true;
}
}
}
if (isTempLoad == null) {
fail("POLoad elements should have isTmpLoad child node.");
} else if (isTempLoad && hasAlias) {
fail("Temp loads should not have aliases");
} else if (!isTempLoad && !hasAlias) {
fail("Non temporary loads should be associated with alias.");
}
sawTempLoad = sawTempLoad || isTempLoad;
sawNonTempLoad = sawNonTempLoad || !isTempLoad;
}
assertTrue(sawTempLoad && sawNonTempLoad);
}
@Test
public void testRegisterRemoteScript() throws Throwable {
String scriptName = "script.py";
File scriptFile = File.createTempFile("tmp", "");
PrintWriter pw = new PrintWriter(new FileWriter(scriptFile));
pw.println("@outputSchema(\"word:chararray\")\ndef helloworld():\n return 'Hello, World'");
pw.close();
FileSystem fs = cluster.getFileSystem();
fs.copyFromLocalFile(new Path(scriptFile.getAbsolutePath()), new Path(scriptName));
// find the absolute path for the directory so that it does not
// depend on configuration
String absPath = fs.getFileStatus(new Path(scriptName)).getPath().toString();
Util.createInputFile(cluster, "testRegisterRemoteScript_input", new String[]{"1", "2"});
pig.registerCode(absPath, "jython", "pig");
pig.registerQuery("a = load 'testRegisterRemoteScript_input';");
pig.registerQuery("b = foreach a generate pig.helloworld($0);");
Iterator<Tuple> iter = pig.openIterator("b");
assertTrue(iter.hasNext());
Tuple t = iter.next();
assertTrue(t.size() > 0);
assertEquals("Hello, World", t.get(0));
assertTrue(iter.hasNext());
t = iter.next();
assertTrue(t.size() > 0);
assertEquals("Hello, World", t.get(0));
assertFalse(iter.hasNext());
}
// PIG-3469
@Test
public void testNonExistingSecondDirectoryInSkewJoin() throws Exception {
String script =
"exists = LOAD 'test/org/apache/pig/test/data/InputFiles/jsTst1.txt' AS (x:chararray, a:long);" +
"missing = LOAD '/non/existing/directory' AS (a:long);" +
"missing = FOREACH ( GROUP missing BY a ) GENERATE $0 AS a, COUNT_STAR($1);" +
"joined = JOIN exists BY a, missing BY a USING 'skewed';" +
"STORE joined INTO '/tmp/test_out.tsv';";
PigServer pig = new PigServer(ExecType.LOCAL);
// Execution of the script should fail, but without throwing any exceptions (such as NPE)
try {
pig.registerScript(new ByteArrayInputStream(script.getBytes("UTF-8")));
} catch(Exception ex) {
fail("Unexpected exception: " + ex);
}
}
@Test
public void testParamSubstitution() throws Exception{
// using params map
PigServer pig=new PigServer(ExecType.LOCAL);
Map<String,String> params=new HashMap<String, String>();
params.put("input", "test/org/apache/pig/test/data/passwd");
File scriptFile=Util.createFile(new String[]{"a = load '$input' using PigStorage(':');"});
pig.registerScript(scriptFile.getAbsolutePath(),params);
Iterator<Tuple> iter=pig.openIterator("a");
int index=0;
List<Tuple> expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
// using param file
pig=new PigServer(ExecType.LOCAL);
List<String> paramFile=new ArrayList<String>();
paramFile.add(Util.createFile(new String[]{"input=test/org/apache/pig/test/data/passwd2"}).getAbsolutePath());
pig.registerScript(scriptFile.getAbsolutePath(),paramFile);
iter=pig.openIterator("a");
index=0;
expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd2", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
// using both param value and param file, param value should override param file
pig=new PigServer(ExecType.LOCAL);
pig.registerScript(scriptFile.getAbsolutePath(),params,paramFile);
iter=pig.openIterator("a");
index=0;
expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
}
// build the pig script from in-memory, and wrap it as ByteArrayInputStream
@Test
public void testRegisterScriptFromStream() throws Exception{
// using params map
PigServer pig=new PigServer(ExecType.LOCAL);
Map<String,String> params=new HashMap<String, String>();
params.put("input", "test/org/apache/pig/test/data/passwd");
String script="a = load '$input' using PigStorage(':');";
pig.registerScript(new ByteArrayInputStream(script.getBytes("UTF-8")),params);
Iterator<Tuple> iter=pig.openIterator("a");
int index=0;
List<Tuple> expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
// using param file
pig=new PigServer(ExecType.LOCAL);
List<String> paramFile=new ArrayList<String>();
paramFile.add(Util.createFile(new String[]{"input=test/org/apache/pig/test/data/passwd2"}).getAbsolutePath());
pig.registerScript(new ByteArrayInputStream(script.getBytes("UTF-8")),paramFile);
iter=pig.openIterator("a");
index=0;
expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd2", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
// using both param value and param file, param value should override param file
pig=new PigServer(ExecType.LOCAL);
pig.registerScript(new ByteArrayInputStream(script.getBytes("UTF-8")),params,paramFile);
iter=pig.openIterator("a");
index=0;
expectedTuples=Util.readFile2TupleList("test/org/apache/pig/test/data/passwd", ":");
while(iter.hasNext()){
Tuple tuple=iter.next();
assertEquals(tuple.get(0).toString(), expectedTuples.get(index).get(0).toString());
index++;
}
}
@Test
public void testPigProperties() throws Throwable {
File propertyFile = new File(tempDir, "pig.properties");
propertyFile.deleteOnExit();
TestPigServer.registerNewResource(propertyFile.getAbsolutePath());
File cliPropertyFile = new File("commandLine_pig.properties");
cliPropertyFile.deleteOnExit();
TestPigServer.registerNewResource(cliPropertyFile.getAbsolutePath());
Properties properties = PropertiesUtil.loadDefaultProperties();
assertEquals("40000000", properties.getProperty("pig.spill.gc.activation.size"));
assertNull(properties.getProperty("test123"));
PrintWriter out = new PrintWriter(new FileWriter(propertyFile));
out.println("test123=properties");
out.close();
properties = PropertiesUtil.loadDefaultProperties();
assertEquals("properties", properties.getProperty("test123"));
out = new PrintWriter(new FileWriter(cliPropertyFile));
out.println("test123=cli_properties");
out.close();
properties = PropertiesUtil.loadDefaultProperties();
PropertiesUtil.loadPropertiesFromFile(properties,
"commandLine_pig.properties");
assertEquals("cli_properties", properties.getProperty("test123"));
propertyFile.delete();
cliPropertyFile.delete();
}
@Test
public void testPigTempDir() throws Throwable {
Properties properties = PropertiesUtil.loadDefaultProperties();
File pigTempDir = new File(tempDir, FILE_SEPARATOR + "tmp" + FILE_SEPARATOR + "test");
properties.put("pig.temp.dir", pigTempDir.getPath());
PigContext pigContext=new PigContext(ExecType.LOCAL, properties);
pigContext.connect();
FileLocalizer.setInitialized(false);
String tempPath= FileLocalizer.getTemporaryPath(pigContext).toString();
Path path = new Path(tempPath);
assertTrue(tempPath.startsWith(pigTempDir.toURI().toString()));
FileSystem fs = FileSystem.get(path.toUri(),
ConfigurationUtil.toConfiguration(pigContext.getProperties()));
FileStatus status = fs.getFileStatus(path.getParent());
// Temporary root dir should have 700 as permission
assertEquals("rwx------", status.getPermission().toString());
pigTempDir.delete();
FileLocalizer.setInitialized(false);
}
@Test
public void testUniquePigTempDir() throws Throwable {
Properties properties = PropertiesUtil.loadDefaultProperties();
File pigTempDir = new File(tempDir, FILE_SEPARATOR + "tmp" + FILE_SEPARATOR + "test");
properties.put("pig.temp.dir", pigTempDir.getPath());
PigContext pigContext = new PigContext(ExecType.LOCAL, properties);
pigContext.connect();
FileLocalizer.setInitialized(false);
Random r = new Random(5);
FileLocalizer.setR(r);
String tempPath1 = FileLocalizer.getTemporaryPath(pigContext).toString();
FileLocalizer.setInitialized(false);
r = new Random(5);
FileLocalizer.setR(r);
String tempPath2 = FileLocalizer.getTemporaryPath(pigContext).toString();
assertFalse(tempPath1.toString().equals(tempPath2.toString()));
// cleanup
pigTempDir.delete();
FileLocalizer.setInitialized(false);
}
@Test
public void testDescribeForEachFlatten() throws Throwable {
pig.registerQuery("a = load 'a';") ;
pig.registerQuery("b = group a by $0;") ;
pig.registerQuery("c = foreach b generate flatten(a);") ;
Schema s = pig.dumpSchema("c") ;
assertNull(s);
}
@Test // PIG-2059
public void test1() throws Throwable {
pig.setValidateEachStatement(true);
pig.registerQuery("A = load 'x' as (u, v);") ;
try {
pig.registerQuery("B = foreach A generate $2;") ;
fail("Query is supposed to fail.");
} catch(FrontendException ex) {
String msg = "Out of bound access. " +
"Trying to access non-existent column: 2";
Util.checkMessageInException(ex, msg);
}
}
@Test
public void testDefaultPigProperties() throws Throwable {
//Test with PigServer
PigServer pigServer = new PigServer(ExecType.MAPREDUCE);
Properties properties = pigServer.getPigContext().getProperties();
assertEquals("999", properties.getProperty("pig.exec.reducers.max"));
assertEquals("true", properties.getProperty("aggregate.warning"));
assertEquals("true", properties.getProperty("opt.multiquery"));
assertEquals("false", properties.getProperty("stop.on.failure"));
//Test with properties file
File propertyFile = new File(tempDir, "pig.properties");
properties = PropertiesUtil.loadDefaultProperties();
assertEquals("999", properties.getProperty("pig.exec.reducers.max"));
assertEquals("true", properties.getProperty("aggregate.warning"));
assertEquals("true", properties.getProperty("opt.multiquery"));
assertEquals("false", properties.getProperty("stop.on.failure"));
PrintWriter out = new PrintWriter(new FileWriter(propertyFile));
out.println("aggregate.warning=false");
out.println("opt.multiquery=false");
out.println("stop.on.failure=true");
out.close();
properties = PropertiesUtil.loadDefaultProperties();
assertEquals("false", properties.getProperty("aggregate.warning"));
assertEquals("false", properties.getProperty("opt.multiquery"));
assertEquals("true", properties.getProperty("stop.on.failure"));
propertyFile.delete();
}
@Test
public void testSecondarySort() throws Exception {
PigServer pigServer = new PigServer(ExecType.LOCAL);
Data data = resetData(pigServer);
data.set("foo",
tuple("a", 1, "b"),
tuple("b", 2, "c"),
tuple("c", 3, "d")
);
pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage() AS (f1:chararray,f2:int,f3:chararray);");
pigServer.registerQuery("B = order A by f1,f2,f3 DESC;");
pigServer.registerQuery("STORE B INTO 'bar' USING mock.Storage();");
List<Tuple> out = data.get("bar");
assertEquals(tuple("a", 1, "b"), out.get(0));
assertEquals(tuple("b", 2, "c"), out.get(1));
assertEquals(tuple("c", 3, "d"), out.get(2));
}
@Test(expected = RuntimeException.class)
public void testLocationStrictCheck() throws ExecException, IOException {
Properties properties = PropertiesUtil.loadDefaultProperties();
properties.setProperty("pig.location.check.strict", "true");
PigServer pigServer = new PigServer(ExecType.LOCAL, properties);
Data data = resetData(pigServer);
data.set("foo",
tuple("a", 1, "b"),
tuple("b", 2, "c"),
tuple("c", 3, "d"));
pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage() AS (f1:chararray,f2:int,f3:chararray);");
pigServer.registerQuery("B = order A by f1,f2,f3 DESC;");
pigServer.registerQuery("C = order A by f1,f2,f3;");
// Storing to same location 'bar' should throw a RuntimeException
pigServer.registerQuery("STORE B INTO 'bar' USING mock.Storage();");
pigServer.registerQuery("STORE C INTO 'bar' USING mock.Storage();");
List<Tuple> out = data.get("bar");
assertEquals(tuple("a", 1, "b"), out.get(0));
assertEquals(tuple("b", 2, "c"), out.get(1));
assertEquals(tuple("c", 3, "d"), out.get(2));
}
@Test
public void testSkipParseInRegisterForBatch() throws Throwable {
// numTimesInitiated = 10. 4 (once per registerQuery) + 6 (launchPlan->RandomSampleLoader,
// InputSizeReducerEstimator, getSplits->RandomSampleLoader,
// createRecordReader->RandomSampleLoader, getSplits, createRecordReader)
// numTimesSchemaCalled = 4 (once per registerQuery)
_testSkipParseInRegisterForBatch(false, 10, 4);
// numTimesInitiated = 7 (parseAndBuild, launchPlan->RandomSampleLoader,
// InputSizeReducerEstimator, getSplits->RandomSampleLoader,
// createRecordReader->RandomSampleLoader, getSplits, createRecordReader)
// numTimesSchemaCalled = 1 (parseAndBuild)
_testSkipParseInRegisterForBatch(true, 7, 1);
}
@Test
// See PIG-3967
public void testGruntValidation() throws IOException {
PigServer pigServer = new PigServer(ExecType.LOCAL);
Data data = resetData(pigServer);
data.set("foo",
tuple("a", 1, "b"),
tuple("b", 2, "c"),
tuple("c", 3, "d"));
pigServer.setValidateEachStatement(true);
pigServer.registerQuery("A = LOAD 'foo' USING mock.Storage() AS (f1:chararray,f2:int,f3:chararray);");
pigServer.registerQuery("store A into '" + tempDir + "/testGruntValidation1';");
pigServer.registerQuery("B = LOAD 'foo' USING mock.Storage() AS (f1:chararray,f2:int,f3:chararray);");
pigServer.registerQuery("store B into '" + tempDir + "/testGruntValidation2';"); // This should pass
boolean validationExceptionCaptured = false;
try {
// This should fail due to output validation
pigServer.registerQuery("store A into '" + tempDir + "/testGruntValidation1';");
} catch (FrontendException e) {
validationExceptionCaptured = true;
}
assertTrue(validationExceptionCaptured);
}
private void _testSkipParseInRegisterForBatch(boolean skipParseInRegisterForBatch,
int numTimesInitiated, int numTimesSchemaCalled) throws Throwable {
MockTrackingStorage.numTimesInitiated = 0;
MockTrackingStorage.numTimesSchemaCalled = 0;
String query = "A = LOAD 'foo' USING " + MockTrackingStorage.class.getName() + "();\n" +
"B = order A by $0,$1,$2;\n" +
"C = LIMIT B 2;\n" +
"STORE C INTO 'bar' USING mock.Storage();\n";
BufferedReader in = new BufferedReader(new StringReader(query));
Properties properties = new Properties();
properties.setProperty("io.sort.mb", "2");
PigContext pigContext = new PigContext(ExecType.LOCAL, properties);
Data data;
if (skipParseInRegisterForBatch) {
data = resetData(pigContext);
data.set("foo", tuple("a", 1, "b"), tuple("b", 2, "c"), tuple("c", 3, "d"));
Grunt grunt = new Grunt(in, pigContext);
grunt.exec(); // Calls grunt.parseStopOnError(); which executes as batch
}
else {
PigServer pigServer = new PigServer(pigContext);
data = resetData(pigServer);
data.set("foo", tuple("a", 1, "b"), tuple("b", 2, "c"), tuple("c", 3, "d"));
GruntParser grunt = new GruntParser(in, pigServer);
grunt.setInteractive(false);
grunt.parseStopOnError(true); //not batch
}
assertEquals(numTimesInitiated, MockTrackingStorage.numTimesInitiated);
assertEquals(numTimesSchemaCalled, MockTrackingStorage.numTimesSchemaCalled);
List<Tuple> out = data.get("bar");
assertEquals(2, out.size());
assertEquals(tuple("a", 1, "b"), out.get(0));
assertEquals(tuple("b", 2, "c"), out.get(1));
}
public static class MockTrackingStorage extends Storage {
public static int numTimesInitiated = 0;
public static int numTimesSchemaCalled = 0;
public MockTrackingStorage() {
super();
numTimesInitiated++;
}
@Override
public ResourceSchema getSchema(String location, Job job) throws IOException {
numTimesSchemaCalled++;
return super.getSchema(location, job);
}
}
}