001/*
002 * Copyright 2002-2018 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.aop.aspectj;
018
019import org.aopalliance.aop.Advice;
020
021import org.springframework.aop.Pointcut;
022import org.springframework.aop.PointcutAdvisor;
023import org.springframework.core.Ordered;
024import org.springframework.lang.Nullable;
025import org.springframework.util.Assert;
026
027/**
028 * AspectJPointcutAdvisor that adapts an {@link AbstractAspectJAdvice}
029 * to the {@link org.springframework.aop.PointcutAdvisor} interface.
030 *
031 * @author Adrian Colyer
032 * @author Juergen Hoeller
033 * @since 2.0
034 */
035public class AspectJPointcutAdvisor implements PointcutAdvisor, Ordered {
036
037        private final AbstractAspectJAdvice advice;
038
039        private final Pointcut pointcut;
040
041        @Nullable
042        private Integer order;
043
044
045        /**
046         * Create a new AspectJPointcutAdvisor for the given advice.
047         * @param advice the AbstractAspectJAdvice to wrap
048         */
049        public AspectJPointcutAdvisor(AbstractAspectJAdvice advice) {
050                Assert.notNull(advice, "Advice must not be null");
051                this.advice = advice;
052                this.pointcut = advice.buildSafePointcut();
053        }
054
055
056        public void setOrder(int order) {
057                this.order = order;
058        }
059
060        @Override
061        public int getOrder() {
062                if (this.order != null) {
063                        return this.order;
064                }
065                else {
066                        return this.advice.getOrder();
067                }
068        }
069
070        @Override
071        public boolean isPerInstance() {
072                return true;
073        }
074
075        @Override
076        public Advice getAdvice() {
077                return this.advice;
078        }
079
080        @Override
081        public Pointcut getPointcut() {
082                return this.pointcut;
083        }
084
085        /**
086         * Return the name of the aspect (bean) in which the advice was declared.
087         * @since 4.3.15
088         * @see AbstractAspectJAdvice#getAspectName()
089         */
090        public String getAspectName() {
091                return this.advice.getAspectName();
092        }
093
094
095        @Override
096        public boolean equals(@Nullable Object other) {
097                if (this == other) {
098                        return true;
099                }
100                if (!(other instanceof AspectJPointcutAdvisor)) {
101                        return false;
102                }
103                AspectJPointcutAdvisor otherAdvisor = (AspectJPointcutAdvisor) other;
104                return this.advice.equals(otherAdvisor.advice);
105        }
106
107        @Override
108        public int hashCode() {
109                return AspectJPointcutAdvisor.class.hashCode() * 29 + this.advice.hashCode();
110        }
111
112}