Spring Framework example source code file (ChainedPersistenceExceptionTranslatorTests.java)

This example Spring Framework source code file (ChainedPersistenceExceptionTranslatorTests.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

chainedpersistenceexceptiontranslator, chainedpersistenceexceptiontranslator, chainedpersistenceexceptiontranslatortests, invaliddataaccessapiusageexception, invaliddataaccessapiusageexception, mappersistenceexceptiontranslator, mappersistenceexceptiontranslator, optimisticlockingfailureexception, runtimeexception, runtimeexception, should, testcase

The Spring Framework ChainedPersistenceExceptionTranslatorTests.java source code

/*
 * Copyright 2002-2006 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.dao.support;

import junit.framework.TestCase;

import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.dao.OptimisticLockingFailureException;
import org.springframework.dao.support.DataAccessUtilsTests.MapPersistenceExceptionTranslator;

/**
 * @author Rod Johnson
 * @since 2.0
 */
public class ChainedPersistenceExceptionTranslatorTests extends TestCase {
	
	public void testEmpty() {
		ChainedPersistenceExceptionTranslator pet = new ChainedPersistenceExceptionTranslator();
		//MapPersistenceExceptionTranslator mpet = new MapPersistenceExceptionTranslator();
		RuntimeException in = new RuntimeException("in");
		assertSame(in, DataAccessUtils.translateIfNecessary(in, pet));
	}
	
	public void testExceptionTranslationWithTranslation() {
		MapPersistenceExceptionTranslator mpet1 = new MapPersistenceExceptionTranslator();
		RuntimeException in1 = new RuntimeException("in");
		InvalidDataAccessApiUsageException out1 = new InvalidDataAccessApiUsageException("out");
		InvalidDataAccessApiUsageException out2 = new InvalidDataAccessApiUsageException("out");
		mpet1.addTranslation(in1, out1);
		
		ChainedPersistenceExceptionTranslator chainedPet1 = new ChainedPersistenceExceptionTranslator();
		assertSame("Should not translate yet", in1, DataAccessUtils.translateIfNecessary(in1, chainedPet1));
		chainedPet1.addDelegate(mpet1);
		assertSame("Should now translate", out1, DataAccessUtils.translateIfNecessary(in1, chainedPet1));
		
		// Now add a new translator and verify it wins
		MapPersistenceExceptionTranslator mpet2 = new MapPersistenceExceptionTranslator();
		mpet2.addTranslation(in1, out2);
		chainedPet1.addDelegate(mpet2);
		assertSame("Should still translate the same due to ordering", 
				out1, DataAccessUtils.translateIfNecessary(in1, chainedPet1));
		
		ChainedPersistenceExceptionTranslator chainedPet2 = new ChainedPersistenceExceptionTranslator();
		chainedPet2.addDelegate(mpet2);
		chainedPet2.addDelegate(mpet1);
		assertSame("Should translate differently due to ordering", 
				out2, DataAccessUtils.translateIfNecessary(in1, chainedPet2));
		
		RuntimeException in2 = new RuntimeException("in2");
		OptimisticLockingFailureException out3 = new OptimisticLockingFailureException("out2");
		assertNull(chainedPet2.translateExceptionIfPossible(in2));
		MapPersistenceExceptionTranslator mpet3 = new MapPersistenceExceptionTranslator();
		mpet3.addTranslation(in2, out3);
		chainedPet2.addDelegate(mpet3);
		assertSame(out3, chainedPet2.translateExceptionIfPossible(in2));
	}

}