spring security AbstractMethodSecurityMetadataSource 源码
spring security AbstractMethodSecurityMetadataSource 代码
文件路径：/core/src/main/java/org/springframework/security/access/method/AbstractMethodSecurityMetadataSource.java
/*
* 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
*
* https://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.method;
import java.util.Collection;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.aop.framework.AopProxyUtils;
import org.springframework.security.access.ConfigAttribute;
/**
* Abstract implementation of <tt>MethodSecurityMetadataSource</tt> which resolves the
* secured object type to a MethodInvocation.
*
* @author Ben Alex
* @author Luke Taylor
*/
public abstract class AbstractMethodSecurityMetadataSource implements MethodSecurityMetadataSource {
protected final Log logger = LogFactory.getLog(getClass());
@Override
public final Collection<ConfigAttribute> getAttributes(Object object) {
if (object instanceof MethodInvocation) {
MethodInvocation mi = (MethodInvocation) object;
Object target = mi.getThis();
Class<?> targetClass = null;
if (target != null) {
targetClass = (target instanceof Class<?>) ? (Class<?>) target
: AopProxyUtils.ultimateTargetClass(target);
}
Collection<ConfigAttribute> attrs = getAttributes(mi.getMethod(), targetClass);
if (attrs != null && !attrs.isEmpty()) {
return attrs;
}
if (target != null && !(target instanceof Class<?>)) {
attrs = getAttributes(mi.getMethod(), target.getClass());
}
return attrs;
}
throw new IllegalArgumentException("Object must be a non-null MethodInvocation");
}
@Override
public final boolean supports(Class<?> clazz) {
return (MethodInvocation.class.isAssignableFrom(clazz));
}
}
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