Package org.springframework.aop.framework.autoproxy

Source Code of org.springframework.aop.framework.autoproxy.NullChecker

/*
* Copyright 2002-2013 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.framework.autoproxy;

import java.lang.reflect.Method;

import org.junit.Test;

import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.tests.sample.beans.TestBean;

import static org.junit.Assert.*;

/**
* @author Juergen Hoeller
* @author Dave Syer
* @author Chris Beams
*/
public final class BeanNameAutoProxyCreatorInitTests {

  @Test(expected=IllegalArgumentException.class)
  public void testIgnoreAdvisorThatIsCurrentlyCreation() {
    ClassPathXmlApplicationContext ctx =
      new ClassPathXmlApplicationContext(getClass().getSimpleName() + "-context.xml", getClass());
    TestBean bean = (TestBean) ctx.getBean("bean");
    bean.setName("foo");
    assertEquals("foo", bean.getName());
    bean.setName(null); // should throw
  }

}


class NullChecker implements MethodBeforeAdvice {

  @Override
  public void before(Method method, Object[] args, Object target) throws Throwable {
    check(args);
  }

  private void check(Object[] args) {
    for (int i = 0; i < args.length; i++) {
      if (args[i] == null) {
        throw new IllegalArgumentException("Null argument at position " + i);
      }
    }
  }

}
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