source: branches/TaskRewrite/src/plugins/acegi-0.5.1/src/java/org/codehaus/groovy/grails/plugins/springsecurity/SecurityAnnotationAttributes.java @ 58

/* Copyright 2006-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.grails.plugins.springsecurity;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.metadata.Attributes;
import org.springframework.security.SecurityConfig;
import org.springframework.security.annotation.Secured;

/**
 * Re-implementation of Acegi's {@link SecurityAnnotationAttributes} as a temporary
 * fix until I can figure out how to do this correctly in 2.0.
 *
 * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a>
 */
public class SecurityAnnotationAttributes implements Attributes {

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.Class)
         */
        @SuppressWarnings("unchecked")
        public Set<SecurityConfig> getAttributes(final Class target) {
                Set<SecurityConfig> attributes = new HashSet<SecurityConfig>();

                for (Annotation annotation : target.getAnnotations()) {
                        if (annotation instanceof Secured) {
                                Secured attr = (Secured)annotation;
                                for (String auth : attr.value()) {
                                        attributes.add(new SecurityConfig(auth));
                                }
                                break;
                        }
                }

                return attributes;
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.reflect.Method)
         */
        public Set<SecurityConfig> getAttributes(final Method method) {
                Set<SecurityConfig> attributes = new HashSet<SecurityConfig>();

                Annotation[] annotations = AnnotationUtils.getAnnotations(method);
                for (Annotation annotation : annotations) {
                        if (annotation instanceof Secured) {
                                Secured attr = (Secured)annotation;
                                for (String auth : attr.value()) {
                                        attributes.add(new SecurityConfig(auth));
                                }

                                break;
                        }
                }

                return attributes;
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.Class, java.lang.Class)
         */
        @SuppressWarnings("unchecked")
        public Collection getAttributes(final Class clazz, final Class filter) {
                throw new UnsupportedOperationException("Unsupported operation");
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.reflect.Method, java.lang.Class)
         */
        @SuppressWarnings("unchecked")
        public Collection getAttributes(final Method method, final Class clazz) {
                throw new UnsupportedOperationException("Unsupported operation");
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.reflect.Field)
         */
        @SuppressWarnings("unchecked")
        public Collection getAttributes(final Field field) {
                throw new UnsupportedOperationException("Unsupported operation");
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.metadata.Attributes#getAttributes(java.lang.reflect.Field, java.lang.Class)
         */
        @SuppressWarnings("unchecked")
        public Collection getAttributes(final Field field, final Class clazz) {
                throw new UnsupportedOperationException("Unsupported operation");
        }
}