/**
* 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.hadoop.streaming;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.MalformedURLException;
import org.apache.hadoop.util.JarFinder;
import org.junit.Test;
import static org.junit.Assert.*;
import org.apache.hadoop.conf.Configuration;
/**
* Test Hadoop StreamUtil successfully returns a class loaded by the job conf
* but has no package name.
*/
public class TestClassWithNoPackage
{
@Test
public void testGoodClassOrNull() throws Exception {
String NAME = "ClassWithNoPackage";
ClassLoader cl = TestClassWithNoPackage.class.getClassLoader();
String JAR = JarFinder.getJar(cl.loadClass(NAME));
// Add testjob jar file to classpath.
Configuration conf = new Configuration();
conf.setClassLoader(new URLClassLoader(new URL[]{new URL("file", null, JAR)},
null));
// Get class with no package name.
String defaultPackage = this.getClass().getPackage().getName();
Class c = StreamUtil.goodClassOrNull(conf, NAME, defaultPackage);
assertNotNull("Class " + NAME + " not found!", c);
}
public static void main(String[]args) throws Exception
{
new TestClassWithNoPackage().testGoodClassOrNull();
}
}