001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.shiro.aspectj;
020
021import org.apache.shiro.aop.MethodInvocation;
022import org.apache.shiro.authz.aop.AnnotationsAuthorizingMethodInterceptor;
023import org.aspectj.lang.JoinPoint;
024import org.aspectj.lang.reflect.MethodSignature;
025import org.slf4j.Logger;
026import org.slf4j.LoggerFactory;
027
028import java.util.Arrays;
029
030/**
031 * Extends the annotations authorizing method interceptor class hierarchie to adapt
032 * an aspectj {@link JoinPoint} into a {@link MethodInvocation} amd to perform the
033 * authorization of method invocations.
034 *
035 * @since 1.0
036 */
037public class AspectjAnnotationsAuthorizingMethodInterceptor extends AnnotationsAuthorizingMethodInterceptor {
038    /**
039     * This class's private log instance.
040     */
041    private static final Logger log = LoggerFactory.getLogger(AspectjAnnotationsAuthorizingMethodInterceptor.class);
042
043    /**
044     * Performs the method interception of the before advice at the specified joint point.
045     *
046     * @param aJoinPoint The joint point to intercept.
047     * @throws Throwable If an error occurs berforming the method invocation.
048     */
049    protected void performBeforeInterception(JoinPoint aJoinPoint) throws Throwable {
050        if (log.isTraceEnabled()) log.trace("#### Invoking a method decorated with a Shiro annotation" +
051                "\n\tkind       : " + aJoinPoint.getKind() +
052                "\n\tjoinPoint  : " + aJoinPoint +
053                "\n\tannotations: " + Arrays.toString(((MethodSignature) aJoinPoint.getSignature()).getMethod().getAnnotations()) +
054                "\n\ttarget     : " + aJoinPoint.getTarget()
055        );
056
057        // 1. Adapt the join point into a method invocation
058        BeforeAdviceMethodInvocationAdapter mi = BeforeAdviceMethodInvocationAdapter.createFrom(aJoinPoint);
059
060        // 2. Delegate the authorization of the method call to the super class
061        super.invoke(mi);
062    }
063}