/*
* Copyright 2002-2005 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.aop.support;
import junit.framework.TestCase;
import org.springframework.aop.Pointcut;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.aop.interceptor.NopInterceptor;
import org.springframework.beans.ITestBean;
import org.springframework.beans.TestBean;
/**
*
* @author Rod Johnson
*/
public class ControlFlowPointcutTests extends TestCase {
public ControlFlowPointcutTests(String s) {
super(s);
}
public void testMatches() {
TestBean target = new TestBean();
target.setAge(27);
NopInterceptor nop = new NopInterceptor();
ControlFlowPointcut cflow = new ControlFlowPointcut(One.class, "getAge");
ProxyFactory pf = new ProxyFactory(target);
ITestBean proxied = (ITestBean) pf.getProxy();
pf.addAdvisor(new DefaultPointcutAdvisor(cflow, nop));
// Not advised, not under One
assertEquals(target.getAge(), proxied.getAge());
assertEquals(0, nop.getCount());
// Will be advised
assertEquals(target.getAge(), new One().getAge(proxied));
assertEquals(1, nop.getCount());
// Won't be advised
assertEquals(target.getAge(), new One().nomatch(proxied));
assertEquals(1, nop.getCount());
assertEquals(3, cflow.getEvaluations());
}
/**
* Check that we can use a cflow pointcut only in conjunction with
* a static pointcut: e.g. all setter methods that are invoked under
* a particular class. This greatly reduces the number of calls
* to the cflow pointcut, meaning that it's not so prohibitively
* expensive.
*/
public void testSelectiveApplication() {
TestBean target = new TestBean();
target.setAge(27);
NopInterceptor nop = new NopInterceptor();
ControlFlowPointcut cflow = new ControlFlowPointcut(One.class);
Pointcut settersUnderOne = Pointcuts.intersection(Pointcuts.SETTERS, cflow);
ProxyFactory pf = new ProxyFactory(target);
ITestBean proxied = (ITestBean) pf.getProxy();
pf.addAdvisor(new DefaultPointcutAdvisor(settersUnderOne, nop));
// Not advised, not under One
target.setAge(16);
assertEquals(0, nop.getCount());
// Not advised; under One but not a setter
assertEquals(16, new One().getAge(proxied));
assertEquals(0, nop.getCount());
// Won't be advised
new One().set(proxied);
assertEquals(1, nop.getCount());
// We saved most evaluations
assertEquals(1, cflow.getEvaluations());
}
public void testEqualsAndHashCode() throws Exception {
assertEquals(new ControlFlowPointcut(One.class), new ControlFlowPointcut(One.class));
assertEquals(new ControlFlowPointcut(One.class, "getAge"), new ControlFlowPointcut(One.class, "getAge"));
assertFalse(new ControlFlowPointcut(One.class, "getAge").equals(new ControlFlowPointcut(One.class)));
assertEquals(new ControlFlowPointcut(One.class).hashCode(), new ControlFlowPointcut(One.class).hashCode());
assertEquals(new ControlFlowPointcut(One.class, "getAge").hashCode(), new ControlFlowPointcut(One.class, "getAge").hashCode());
assertFalse(new ControlFlowPointcut(One.class, "getAge").hashCode() == new ControlFlowPointcut(One.class).hashCode());
}
public class One {
int getAge(ITestBean proxied) {
return proxied.getAge();
}
int nomatch(ITestBean proxied) {
return proxied.getAge();
}
void set(ITestBean proxied) {
proxied.setAge(5);
}
}
}