ExactlyPointcut.java

package org.theonefx.wcframework.aop;

import java.lang.reflect.Method;

/**
 * @File          : ExactlyPointcut.java
 * @ClassName     : ExactlyPointcut
 * @Author        : TheoneFx
 * @Date          : 2013-3-11 下午10:36:53
 * @Version       : v1.0
 * @Description   : 明确的切入点，唯一指定一个method
 */
public class ExactlyPointcut implements Pointcut {

	private final Class<?> clazz;

	private final Method method;

	public ExactlyPointcut(Class<?> clazz, Method method) {
		this.clazz = clazz;
		this.method = method;
	}

	@Override
	public ClassFilter getClassFilter() {
		return classFilter;
	}

	@Override
	public MethodMatcher getMethodMatcher() {
		return methodMatcher;
	}

	private final ClassFilter classFilter = new ClassFilter() {

		@Override
		public boolean matches(Class<?> clazz) {
			return clazz.getCanonicalName().equals(ExactlyPointcut.this.clazz.getCanonicalName());
		}
	};

	private final MethodMatcher methodMatcher = new MethodMatcher() {

		@Override
		public boolean match(Method method) {
			if (method == ExactlyPointcut.this.method) {
				return true;
			}
			if (method.getName().equals(ExactlyPointcut.this.method.getName())) {
				Class<?>[] types1 = method.getParameterTypes();
				Class<?>[] types2 = ExactlyPointcut.this.method.getParameterTypes();
				if (types1.length != types2.length) {
					return false;
				}
				for (int i = 0; i < types1.length; i++) {
					if (!types1[i].getCanonicalName().equals(types2[i].getCanonicalName())) {
						return false;
					}
				}
				return true;
			} else {
				return false;
			}
		}
	};
}