/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
*
* 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.springframework.security.access.annotation;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.annotation.security.DenyAll;
import javax.annotation.security.PermitAll;
import javax.annotation.security.RolesAllowed;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.method.AbstractFallbackMethodSecurityMetadataSource;
/**
* Sources method security metadata from major JSR 250 security annotations.
*
* @author Ben Alex
* @since 2.0
*/
public class Jsr250MethodSecurityMetadataSource extends AbstractFallbackMethodSecurityMetadataSource {
protected Collection<ConfigAttribute> findAttributes(Class<?> clazz) {
return processAnnotations(clazz.getAnnotations());
}
protected Collection<ConfigAttribute> findAttributes(Method method, Class<?> targetClass) {
return processAnnotations(AnnotationUtils.getAnnotations(method));
}
public Collection<ConfigAttribute> getAllConfigAttributes() {
return null;
}
private List<ConfigAttribute> processAnnotations(Annotation[] annotations) {
if (annotations == null || annotations.length == 0) {
return null;
}
List<ConfigAttribute> attributes = new ArrayList<ConfigAttribute>();
for (Annotation a: annotations) {
if (a instanceof DenyAll) {
attributes.add(Jsr250SecurityConfig.DENY_ALL_ATTRIBUTE);
return attributes;
}
if (a instanceof PermitAll) {
attributes.add(Jsr250SecurityConfig.PERMIT_ALL_ATTRIBUTE);
return attributes;
}
if (a instanceof RolesAllowed) {
RolesAllowed ra = (RolesAllowed) a;
for (String allowed : ra.value()) {
attributes.add(new Jsr250SecurityConfig(allowed));
}
return attributes;
}
}
return null;
}
}