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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 test;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.util.logging.LogManager;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import cl.CustomClassLoader;
import patha.SomeClassA;
/**
* This shows how to test the Calculator service component.
*/
public class ClassloaderTestCase {
@Before
public void setUp() throws Exception {
}
@After
public void tearDown() throws Exception {
}
@Test
public void testClassloader() throws Exception {
try {
CustomClassLoader cl1 = new CustomClassLoader();
// get the class
Class classA1 = cl1.loadClass("patha.SomeClassA");
Class classB1 = cl1.loadClass("patha.SomeClassB");
// Find the doSomething method in the class
Method doSomething = classA1.getMethod( "doSomething", classB1 );
// create an instance of the class
Object instanceA1 = classA1.newInstance();
Object instanceB1 = classB1.newInstance();
// Create a list containing the arguments
Object argsArray1[] = { instanceB1 };
// Call the method
doSomething.invoke( instanceA1, argsArray1 );
// Set up a B with a new class loader
CustomClassLoader cl2 = new CustomClassLoader();
Class classB2 = cl2.loadClass("patha.SomeClassB");
Method setSomeString = classB2.getMethod( "setSomeString", String.class );
Object instanceB2 = classB2.newInstance();
Object argsArray2[] = { "B2 String" };
setSomeString.invoke( instanceB2, argsArray2 );
// try to pass it into A from the first class loader
Object argsArray3[] = { instanceB2 };
doSomething.invoke( instanceA1, argsArray3 );
} catch (Exception ex) {
System.err.println(ex.toString());
}
}
}
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