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* 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.assertTrue;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.pig.ExecType;
import org.apache.pig.PigServer;
import org.apache.pig.builtin.mock.Storage;
import org.apache.pig.data.Tuple;
import org.junit.AfterClass;
import org.junit.Test;
public class TestPigServerWithMacros {
private static MiniCluster cluster = MiniCluster.buildCluster();
@AfterClass
public static void tearDown() throws Exception {
cluster.shutDown();
}
@Test
public void testRegisterRemoteMacro() throws Throwable {
PigServer pig = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
String macroName = "util.pig";
File macroFile = File.createTempFile("tmp", "");
PrintWriter pw = new PrintWriter(new FileWriter(macroFile));
pw.println("DEFINE row_count(X) RETURNS Z { Y = group $X all; $Z = foreach Y generate COUNT($X); };");
pw.close();
FileSystem fs = cluster.getFileSystem();
fs.copyFromLocalFile(new Path(macroFile.getAbsolutePath()), new Path(macroName));
// find the absolute path for the directory so that it does not
// depend on configuration
String absPath = fs.getFileStatus(new Path(macroName)).getPath().toString();
Util.createInputFile(cluster, "testRegisterRemoteMacro_input", new String[]{"1", "2"});
pig.registerQuery("import '" + absPath + "';");
pig.registerQuery("a = load 'testRegisterRemoteMacro_input';");
pig.registerQuery("b = row_count(a);");
Iterator<Tuple> iter = pig.openIterator("b");
assertEquals(2L, ((Long)iter.next().get(0)).longValue());
pig.shutdown();
}
@Test
public void testInlineMacro() throws Throwable {
PigServer pig = new PigServer(ExecType.LOCAL);
Storage.Data data = resetData(pig);
data.set("some_path", "(l:chararray)", tuple("first row"), tuple("second row"));
pig.registerQuery("DEFINE row_count(X) RETURNS Z { Y = group $X all; $Z = foreach Y generate COUNT($X); };");
pig.registerQuery("a = load 'some_path' USING mock.Storage();");
pig.registerQuery("b = row_count(a);");
Iterator<Tuple> iter = pig.openIterator("b");
assertEquals(2L, ((Long)iter.next().get(0)).longValue());
pig.shutdown();
}
@Test
public void testRegisterResourceMacro() throws Throwable {
PigServer pig = new PigServer(ExecType.LOCAL);
String macrosFile = "test/pig/macros.pig";
File macrosJarFile = File.createTempFile("macros", ".jar");
System.out.println("Creating macros jar " + macrosJarFile);
Manifest manifest = new Manifest();
manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
JarOutputStream jarStream = new JarOutputStream(new FileOutputStream(macrosJarFile), manifest);
JarEntry jarEntry = new JarEntry(macrosFile);
jarEntry.setTime(System.currentTimeMillis());
jarStream.putNextEntry(jarEntry);
PrintWriter pw = new PrintWriter(jarStream);
pw.println("DEFINE row_count_in_jar(X) RETURNS Z { Y = group $X all; $Z = foreach Y generate COUNT($X); };");
pw.close();
jarStream.close();
Storage.Data data = resetData(pig);
data.set("some_path", "(l:int)", tuple(tuple("1")), tuple(tuple("2")), tuple(tuple("3")), tuple(tuple("10")), tuple(tuple("11")));
System.out.println("Registering macros jar " + macrosJarFile);
pig.registerJar(macrosJarFile.toString());
pig.registerQuery("import '" + macrosFile + "';");
pig.registerQuery("a = load 'some_path' USING mock.Storage();");
pig.registerQuery("b = row_count_in_jar(a);");
Iterator<Tuple> iter = pig.openIterator("b");
assertTrue(((Long)iter.next().get(0))==5);
pig.shutdown();
}
}