1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 package org.apache.shiro.authz.aop; 20 21 import org.apache.shiro.aop.MethodInterceptorSupport; 22 import org.apache.shiro.aop.MethodInvocation; 23 import org.apache.shiro.authz.AuthorizationException; 24 25 /** 26 * Basic abstract class to support intercepting methods that perform authorization (access control) checks. 27 * 28 * @since 0.9 29 */ 30 public abstract class AuthorizingMethodInterceptor extends MethodInterceptorSupport { 31 32 /** 33 * Invokes the specified method (<code>methodInvocation.{@link org.apache.shiro.aop.MethodInvocation#proceed proceed}()</code> 34 * if authorization is allowed by first 35 * calling {@link #assertAuthorized(org.apache.shiro.aop.MethodInvocation) assertAuthorized}. 36 */ 37 public Object invoke(MethodInvocation methodInvocation) throws Throwable { 38 assertAuthorized(methodInvocation); 39 return methodInvocation.proceed(); 40 } 41 42 /** 43 * Asserts that the specified MethodInvocation is allowed to continue by performing any necessary authorization 44 * (access control) checks first. 45 * @param methodInvocation the <code>MethodInvocation</code> to invoke. 46 * @throws AuthorizationException if the <code>methodInvocation</code> should not be allowed to continue/execute. 47 */ 48 protected abstract void assertAuthorized(MethodInvocation methodInvocation) throws AuthorizationException; 49 50 }