Spring Framework example source code file (LocalSlsbInvokerInterceptorTests.java)

This example Spring Framework source code file (LocalSlsbInvokerInterceptorTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

businessmethods, context, ejb, exception, exception, localinterface, localinterfacewithbusinessmethods, localinterfacewithbusinessmethods, localslsbinvokerinterceptor, localslsbinvokerinterceptor, mockcontrol, mockcontrol, naming, object, proxyfactory, servlet, string, web

The Spring Framework LocalSlsbInvokerInterceptorTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed 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.springframework.ejb.access;

import javax.ejb.CreateException;
import javax.ejb.EJBLocalHome;
import javax.ejb.EJBLocalObject;
import javax.naming.Context;
import javax.naming.NamingException;

import junit.framework.TestCase;
import org.easymock.MockControl;

import org.springframework.aop.framework.ProxyFactory;
import org.springframework.jndi.JndiTemplate;

/**
 * @author Rod Johnson
 * @author Juergen Hoeller
*/
public class LocalSlsbInvokerInterceptorTests extends TestCase {

	/**
	 * Test that it performs the correct lookup.
	 */
	public void testPerformsLookup() throws Exception {
		MockControl ejbControl = MockControl.createControl(LocalInterfaceWithBusinessMethods.class);
		final LocalInterfaceWithBusinessMethods ejb = (LocalInterfaceWithBusinessMethods) ejbControl.getMock();
		ejbControl.replay();
		
		final String jndiName= "foobar";
		MockControl contextControl = contextControl(jndiName, ejb);
		
		LocalSlsbInvokerInterceptor si = configuredInterceptor(contextControl, jndiName);
		
		contextControl.verify();
	}
	
	public void testLookupFailure() throws Exception {
		final NamingException nex = new NamingException();
		final String jndiName= "foobar";
		JndiTemplate jt = new JndiTemplate() {
			public Object lookup(String name) throws NamingException {
				assertTrue(jndiName.equals(name));
				throw nex;
			}
		};
	
		LocalSlsbInvokerInterceptor si = new LocalSlsbInvokerInterceptor();
		si.setJndiName("foobar");
		// default resourceRef=false should cause this to fail, as java:/comp/env will not
		// automatically be added
		si.setJndiTemplate(jt);
		try {
			si.afterPropertiesSet();
			fail("Should have failed with naming exception");
		}
		catch (NamingException ex) {
			assertTrue(ex == nex);
		}
	}
	
	public void testInvokesMethodOnEjbInstance() throws Exception {
		Object retVal = new Object();
		MockControl ejbControl = MockControl.createControl(LocalInterfaceWithBusinessMethods.class);
		final LocalInterfaceWithBusinessMethods ejb = (LocalInterfaceWithBusinessMethods) ejbControl.getMock();
		ejb.targetMethod();
		ejbControl.setReturnValue(retVal, 1);
		ejb.remove();
		ejbControl.setVoidCallable(1);
		ejbControl.replay();
	
		final String jndiName= "foobar";
		MockControl contextControl = contextControl(jndiName, ejb);
	
		LocalSlsbInvokerInterceptor si = configuredInterceptor(contextControl, jndiName);
	
		ProxyFactory pf = new ProxyFactory(new Class[] { BusinessMethods.class } );
		pf.addAdvice(si);
		BusinessMethods target = (BusinessMethods) pf.getProxy();
	
		assertTrue(target.targetMethod() == retVal);
	
		contextControl.verify();
		ejbControl.verify();
	}
	
	public void testInvokesMethodOnEjbInstanceWithSeparateBusinessMethods() throws Exception {
		Object retVal = new Object();
		MockControl ejbControl = MockControl.createControl(LocalInterface.class);
		final LocalInterface ejb = (LocalInterface) ejbControl.getMock();
		ejb.targetMethod();
		ejbControl.setReturnValue(retVal, 1);
		ejb.remove();
		ejbControl.setVoidCallable(1);
		ejbControl.replay();

		final String jndiName= "foobar";
		MockControl contextControl = contextControl(jndiName, ejb);

		LocalSlsbInvokerInterceptor si = configuredInterceptor(contextControl, jndiName);

		ProxyFactory pf = new ProxyFactory(new Class[] { BusinessMethods.class } );
		pf.addAdvice(si);
		BusinessMethods target = (BusinessMethods) pf.getProxy();

		assertTrue(target.targetMethod() == retVal);

		contextControl.verify();
		ejbControl.verify();
	}

	private void testException(Exception expected) throws Exception {
		MockControl ejbControl = MockControl.createControl(LocalInterfaceWithBusinessMethods.class);
		final LocalInterfaceWithBusinessMethods ejb = (LocalInterfaceWithBusinessMethods) ejbControl.getMock();
		ejb.targetMethod();
		ejbControl.setThrowable(expected);
		ejbControl.replay();

		final String jndiName= "foobar";
		MockControl contextControl = contextControl(jndiName, ejb);

		LocalSlsbInvokerInterceptor si = configuredInterceptor(contextControl, jndiName);

		ProxyFactory pf = new ProxyFactory(new Class[] { LocalInterfaceWithBusinessMethods.class } );
		pf.addAdvice(si);
		LocalInterfaceWithBusinessMethods target = (LocalInterfaceWithBusinessMethods) pf.getProxy();

		try {
			target.targetMethod();
			fail("Should have thrown exception");
		}
		catch (Exception thrown) {
			assertTrue(thrown == expected);
		}

		contextControl.verify();
		ejbControl.verify();
	}
	
	public void testApplicationException() throws Exception {
		testException(new ApplicationException());
	}

	protected MockControl contextControl(final String jndiName, final Object ejbInstance)
			throws Exception {

		MockControl homeControl = MockControl.createControl(SlsbHome.class);
		final SlsbHome mockHome = (SlsbHome) homeControl.getMock();
		mockHome.create();
		homeControl.setReturnValue(ejbInstance, 1);
		homeControl.replay();
		
		MockControl ctxControl = MockControl.createControl(Context.class);
		final Context mockCtx = (Context) ctxControl.getMock();
		
		mockCtx.lookup("java:comp/env/" + jndiName);
		ctxControl.setReturnValue(mockHome);
		mockCtx.close();
		ctxControl.setVoidCallable();
		ctxControl.replay();
		return ctxControl;
	}
		
	protected LocalSlsbInvokerInterceptor configuredInterceptor(MockControl contextControl, final String jndiName)
			throws Exception {

		final Context mockCtx = (Context) contextControl.getMock();
		LocalSlsbInvokerInterceptor si = new LocalSlsbInvokerInterceptor();
		si.setJndiTemplate(new JndiTemplate() {
			protected Context createInitialContext() throws NamingException {
				return mockCtx;
			}
		});
		si.setJndiName(jndiName);
		si.setResourceRef(true);
		si.afterPropertiesSet();
		
		return si;
	}
	
	
	/** 
	 * Needed so that we can mock the create() method.
	 */
	private interface SlsbHome extends EJBLocalHome {

		LocalInterface create() throws CreateException;
	}


	private interface BusinessMethods {

		Object targetMethod() throws ApplicationException;
	}


	private interface LocalInterface extends EJBLocalObject {

		Object targetMethod() throws ApplicationException;
	}


	private interface LocalInterfaceWithBusinessMethods extends LocalInterface, BusinessMethods {
	}


	private class ApplicationException extends Exception {

		public ApplicationException() {
			super("appException");
		}
	}
 
}