/*
* Copyright 2002-2016 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.context.expression;
import org.junit.Test;
import org.springframework.beans.factory.BeanIsNotAFactoryException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.expression.FactoryBeanAccessTests.SimpleBeanResolver.Boat;
import org.springframework.context.expression.FactoryBeanAccessTests.SimpleBeanResolver.CarFactoryBean;
import org.springframework.context.support.StaticApplicationContext;
import org.springframework.expression.AccessException;
import org.springframework.expression.EvaluationContext;
import org.springframework.expression.Expression;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.expression.spel.support.StandardEvaluationContext;
import static org.junit.Assert.*;
/**
* Unit tests for expressions accessing beans and factory beans.
*
* @author Andy Clement
*/
public class FactoryBeanAccessTests {
@Test
public void factoryBeanAccess() { // SPR9511
StandardEvaluationContext context = new StandardEvaluationContext();
context.setBeanResolver(new SimpleBeanResolver());
Expression expr = new SpelExpressionParser().parseRaw("@car.colour");
assertEquals("red", expr.getValue(context));
expr = new SpelExpressionParser().parseRaw("&car.class.name");
assertEquals(CarFactoryBean.class.getName(), expr.getValue(context));
expr = new SpelExpressionParser().parseRaw("@boat.colour");
assertEquals("blue",expr.getValue(context));
expr = new SpelExpressionParser().parseRaw("&boat.class.name");
try {
assertEquals(Boat.class.getName(), expr.getValue(context));
fail("Expected BeanIsNotAFactoryException");
}
catch (BeanIsNotAFactoryException binafe) {
// success
}
// No such bean
try {
expr = new SpelExpressionParser().parseRaw("@truck");
assertEquals("red", expr.getValue(context));
fail("Expected NoSuchBeanDefinitionException");
}
catch (NoSuchBeanDefinitionException nsbde) {
// success
}
// No such factory bean
try {
expr = new SpelExpressionParser().parseRaw("&truck");
assertEquals(CarFactoryBean.class.getName(), expr.getValue(context));
fail("Expected NoSuchBeanDefinitionException");
}
catch (NoSuchBeanDefinitionException nsbde) {
// success
}
}
static class SimpleBeanResolver
implements org.springframework.expression.BeanResolver {
static class Car {
public String getColour() {
return "red";
}
}
static class CarFactoryBean implements FactoryBean<Car> {
public Car getObject() {
return new Car();
}
public Class<Car> getObjectType() {
return Car.class;
}
public boolean isSingleton() {
return false;
}
}
static class Boat {
public String getColour() {
return "blue";
}
}
StaticApplicationContext ac = new StaticApplicationContext();
public SimpleBeanResolver() {
ac.registerSingleton("car", CarFactoryBean.class);
ac.registerSingleton("boat", Boat.class);
}
@Override
public Object resolve(EvaluationContext context, String beanName)
throws AccessException {
return ac.getBean(beanName);
}
}
}