001/**
002 * Copyright 2011-2013 The Kuali Foundation Licensed under the
003 * Educational Community License, Version 2.0 (the "License"); you may
004 * not use this file except in compliance with the License. You may
005 * obtain a copy of the License at
006 *
007 * http://www.osedu.org/licenses/ECL-2.0
008 *
009 * Unless required by applicable law or agreed to in writing,
010 * software distributed under the License is distributed on an "AS IS"
011 * BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
012 * or implied. See the License for the specific language governing
013 * permissions and limitations under the License.
014 */
015
016package org.kuali.mobility.security.authz.expression;
017
018import java.util.Iterator;
019import java.util.Set;
020
021import org.kuali.mobility.security.authn.entity.User;
022
023public class PersonAttributeExpression implements Expression {
024
025        private static final long serialVersionUID = 4461424607920854636L;
026
027        private String key;
028
029        private String value;
030
031        public PersonAttributeExpression(String key, String value) {
032                this.key = key;
033                this.value = value;
034        }
035
036        public boolean evaluate(User user) {        
037                Set<String> attributes = user.getPersonAttributes().getAttribute(key);
038                if (attributes != null) {
039                        for (Iterator<String> iter = attributes.iterator(); iter.hasNext();) {
040                                String attribute = iter.next();
041                                if (attribute != null && attribute.equalsIgnoreCase(value)) {
042                                        return true;
043                                }
044                        }
045                }
046                return false;
047        }
048
049        public String getKey() {
050                return key;
051        }
052
053        public String getValue() {
054                return value;
055        }
056
057        @Override
058        public boolean equals(Object obj) {
059                if (obj instanceof PersonAttributeExpression) {
060                        PersonAttributeExpression other = (PersonAttributeExpression)obj;
061                        return key.equals(other.key) && value.equals(other.value);
062                }
063                return false;
064        }
065        
066}