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     */
019    package org.tynamo.shiro.extension.authz.annotations.utils.casters.method;
020    
021    import org.apache.shiro.authz.annotation.RequiresAuthentication;
022    import org.apache.shiro.authz.annotation.RequiresGuest;
023    import org.apache.shiro.authz.annotation.RequiresPermissions;
024    import org.apache.shiro.authz.annotation.RequiresRoles;
025    import org.apache.shiro.authz.annotation.RequiresUser;
026    import org.apache.shiro.authz.aop.AuthenticatedAnnotationHandler;
027    import org.apache.shiro.authz.aop.AuthorizingAnnotationHandler;
028    import org.apache.shiro.authz.aop.GuestAnnotationHandler;
029    import org.apache.shiro.authz.aop.PermissionAnnotationHandler;
030    import org.apache.shiro.authz.aop.RoleAnnotationHandler;
031    import org.apache.shiro.authz.aop.UserAnnotationHandler;
032    
033    
034    /**
035     * Creates a handler based on the annotation type.  
036     * 
037     */
038    public class HandlerCreateVisitor implements MethodAnnotationCasterVisitor {
039    
040            private AuthorizingAnnotationHandler handler;
041            
042            @Override
043            public void visitRequiresAuthentication(RequiresAuthentication annotation) {
044                    handler = new AuthenticatedAnnotationHandler();
045            }
046    
047            @Override
048            public void visitRequiresGuest(RequiresGuest annotation) {
049                    handler = new GuestAnnotationHandler();
050            }
051    
052            @Override
053            public void visitRequiresPermissions(RequiresPermissions annotation) {
054                    handler = new PermissionAnnotationHandler();
055            }
056    
057            @Override
058            public void visitRequiresRoles(RequiresRoles annotation) {
059                    handler = new RoleAnnotationHandler();
060            }
061    
062            @Override
063            public void visitRequiresUser(RequiresUser annotation) {
064                    handler = new UserAnnotationHandler();
065            }
066    
067            @Override
068            public void visitNotFound() {
069                    handler = null;
070                    
071            }
072    
073            public AuthorizingAnnotationHandler getHandler() {
074                    return handler;
075            }
076    
077    }