001package org.apache.fulcrum.security.model.basic; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021import org.apache.fulcrum.security.acl.AccessControlList; 022import org.apache.fulcrum.security.entity.User; 023import org.apache.fulcrum.security.model.ACLFactory; 024import org.apache.fulcrum.security.model.basic.entity.BasicUser; 025import org.apache.fulcrum.security.spi.AbstractManager; 026import org.apache.fulcrum.security.util.GroupSet; 027import org.apache.fulcrum.security.util.UnknownEntityException; 028 029/** 030 * 031 * This factory creates instance of the DynamicAccessControlList 032 * 033 * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a> 034 * @version $Id$ 035 */ 036public class BasicACLFactory extends AbstractManager implements ACLFactory 037{ 038 /** 039 * Construct a new ACL object. 040 * 041 * This constructs a new ACL object from the configured class and 042 * initializes it with the supplied roles and permissions. 043 * 044 * @param groupSet 045 * The GroupSet that this ACL should contain 046 * 047 * @return an object implementing ACL interface. 048 * @throws UnknownEntityException 049 * if the object could not be instantiated. 050 */ 051 private BasicAccessControlListImpl getAclInstance(GroupSet groupSet) throws UnknownEntityException 052 { 053 BasicAccessControlListImpl accessControlList; 054 055 try 056 { 057 accessControlList = new BasicAccessControlListImpl(groupSet); 058 } 059 catch (Exception e) 060 { 061 throw new UnknownEntityException("Failed to instantiate an ACL implementation object", e); 062 } 063 064 return accessControlList; 065 } 066 067 /* (non-Javadoc) 068 * @see org.apache.fulcrum.security.model.ACLFactory#getAccessControlList(org.apache.fulcrum.security.entity.User) 069 */ 070 public <T extends AccessControlList> T getAccessControlList(User user) 071 { 072 GroupSet groupSet = ((BasicUser) user).getGroups(); 073 074 try 075 { 076 @SuppressWarnings("unchecked") 077 T aclInstance = (T) getAclInstance(groupSet); 078 return aclInstance; 079 } 080 catch (UnknownEntityException uue) 081 { 082 throw new RuntimeException(uue.getMessage(), uue); 083 } 084 } 085}