All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.acegisecurity.vote.AbstractAccessDecisionManager Maven / Gradle / Ivy

There is a newer version: 1.0.7
Show newest version
/* 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.acegisecurity.vote;

import org.acegisecurity.AccessDecisionManager;
import org.acegisecurity.AccessDeniedException;
import org.acegisecurity.AcegiMessageSource;
import org.acegisecurity.ConfigAttribute;

import org.springframework.beans.factory.InitializingBean;

import org.springframework.context.MessageSource;
import org.springframework.context.MessageSourceAware;
import org.springframework.context.support.MessageSourceAccessor;

import org.springframework.util.Assert;

import java.util.Iterator;
import java.util.List;


/**
 * Abstract implementation of {@link AccessDecisionManager}.

Handles configuration of a bean context defined list * of {@link AccessDecisionVoter}s and the access control behaviour if all voters abstain from voting (defaults to * deny access).

*/ public abstract class AbstractAccessDecisionManager implements AccessDecisionManager, InitializingBean, MessageSourceAware { //~ Instance fields ================================================================================================ private List decisionVoters; protected MessageSourceAccessor messages = AcegiMessageSource.getAccessor(); private boolean allowIfAllAbstainDecisions = false; //~ Methods ======================================================================================================== public void afterPropertiesSet() throws Exception { checkIfValidList(this.decisionVoters); Assert.notNull(this.messages, "A message source must be set"); } protected final void checkAllowIfAllAbstainDecisions() { if (!this.isAllowIfAllAbstainDecisions()) { throw new AccessDeniedException(messages.getMessage("AbstractAccessDecisionManager.accessDenied", "Access is denied")); } } private void checkIfValidList(List listToCheck) { if ((listToCheck == null) || (listToCheck.size() == 0)) { throw new IllegalArgumentException("A list of AccessDecisionVoters is required"); } } public List getDecisionVoters() { return this.decisionVoters; } public boolean isAllowIfAllAbstainDecisions() { return allowIfAllAbstainDecisions; } public void setAllowIfAllAbstainDecisions(boolean allowIfAllAbstainDecisions) { this.allowIfAllAbstainDecisions = allowIfAllAbstainDecisions; } public void setDecisionVoters(List newList) { checkIfValidList(newList); Iterator iter = newList.iterator(); while (iter.hasNext()) { Object currentObject = null; try { currentObject = iter.next(); AccessDecisionVoter attemptToCast = (AccessDecisionVoter) currentObject; } catch (ClassCastException cce) { throw new IllegalArgumentException("AccessDecisionVoter " + currentObject.getClass().getName() + " must implement AccessDecisionVoter"); } } this.decisionVoters = newList; } public void setMessageSource(MessageSource messageSource) { this.messages = new MessageSourceAccessor(messageSource); } public boolean supports(ConfigAttribute attribute) { Iterator iter = this.decisionVoters.iterator(); while (iter.hasNext()) { AccessDecisionVoter voter = (AccessDecisionVoter) iter.next(); if (voter.supports(attribute)) { return true; } } return false; } /** * Iterates through all AccessDecisionVoters and ensures each can support the presented class.

If * one or more voters cannot support the presented class, false is returned.

* * @param clazz DOCUMENT ME! * * @return DOCUMENT ME! */ public boolean supports(Class clazz) { Iterator iter = this.decisionVoters.iterator(); while (iter.hasNext()) { AccessDecisionVoter voter = (AccessDecisionVoter) iter.next(); if (!voter.supports(clazz)) { return false; } } return true; } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy