001/*
002 * oauth2-oidc-sdk
003 *
004 * Copyright 2012-2016, Connect2id Ltd and contributors.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
007 * this file except in compliance with the License. You may obtain a copy of the
008 * License at
009 *
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software distributed
013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
015 * specific language governing permissions and limitations under the License.
016 */
017
018package com.nimbusds.openid.connect.sdk.federation.policy.operations;
019
020
021import java.util.List;
022import java.util.concurrent.atomic.AtomicBoolean;
023
024import com.nimbusds.oauth2.sdk.ParseException;
025import com.nimbusds.oauth2.sdk.util.JSONUtils;
026import com.nimbusds.openid.connect.sdk.federation.policy.language.*;
027
028
029/**
030 * Default (default) value operation.
031 *
032 * <p>Example policy:
033 *
034 * <pre>
035 * "require_auth_time": { "default" : true }
036 * </pre>
037 *
038 * <p>Related specifications:
039 *
040 * <ul>
041 *     <li>OpenID Connect Federation 1.0, section 4.1.6.
042 * </ul>
043 */
044public class DefaultOperation implements PolicyOperation,
045        BooleanConfiguration, StringConfiguration, StringListConfiguration,
046        UntypedOperation {
047        
048        
049        public static final OperationName NAME = new OperationName("default");
050        
051        
052        private AtomicBoolean isInit = new AtomicBoolean(false);
053        
054        
055        private boolean booleanValue;
056        
057        
058        private String stringValue;
059        
060        
061        private List<String> stringListValue;
062        
063        
064        @Override
065        public OperationName getOperationName() {
066                return NAME;
067        }
068        
069        
070        @Override
071        public void configure(final boolean parameter) {
072                isInit.set(true);
073                this.booleanValue = parameter;
074        }
075        
076        
077        @Override
078        public void configure(final String parameter) {
079                isInit.set(true);
080                this.stringValue = parameter;
081        }
082        
083        
084        @Override
085        public void configure(final List<String> parameter) {
086                isInit.set(true);
087                this.stringListValue = parameter;
088        }
089        
090        
091        @Override
092        public void parseConfiguration(final Object jsonEntity) throws ParseException {
093                if (jsonEntity instanceof Boolean) {
094                        configure(JSONUtils.toBoolean(jsonEntity));
095                } else if (jsonEntity instanceof String) {
096                        configure(JSONUtils.toString(jsonEntity));
097                } else {
098                        configure(JSONUtils.toStringList(jsonEntity));
099                }
100        }
101        
102        
103        @Override
104        public boolean getBooleanConfiguration() {
105                return booleanValue;
106        }
107        
108        
109        @Override
110        public String getStringConfiguration() {
111                return stringValue;
112        }
113        
114        
115        @Override
116        public List<String> getStringListConfiguration() {
117                return stringListValue;
118        }
119        
120        
121        @Override
122        public PolicyOperation merge(final PolicyOperation other)
123                throws PolicyViolationException {
124                
125                DefaultOperation otherTyped = Utils.castForMerge(other, DefaultOperation.class);
126                
127                if (! isInit.get() || ! otherTyped.isInit.get()) {
128                        throw new PolicyViolationException("The default operation is not initialized");
129                }
130                
131                if (getStringListConfiguration() != null) {
132                        
133                        if (getStringListConfiguration().equals(otherTyped.getStringListConfiguration())) {
134                                
135                                DefaultOperation copy = new DefaultOperation();
136                                copy.configure(getStringListConfiguration());
137                                return copy;
138                        }
139                        
140                        throw new PolicyViolationException("Default value mismatch");
141                        
142                } else if (getStringConfiguration() != null) {
143                        
144                        if (getStringConfiguration().equals(otherTyped.getStringConfiguration())) {
145                                
146                                DefaultOperation copy = new DefaultOperation();
147                                copy.configure(getStringConfiguration());
148                                return copy;
149                        }
150                        
151                        throw new PolicyViolationException("Default value mismatch");
152                        
153                } else if (getBooleanConfiguration() == otherTyped.getBooleanConfiguration()) {
154                        
155                        DefaultOperation copy = new DefaultOperation();
156                        copy.configure(getBooleanConfiguration());
157                        return copy;
158                } else {
159                        throw new PolicyViolationException("Default value mismatch");
160                }
161        }
162        
163        
164        @Override
165        public Object apply(final Object value) {
166                
167                if (! isInit.get()) {
168                        throw new IllegalStateException("The policy is not initialized");
169                }
170                
171                if (value != null) {
172                        return value;
173                }
174                
175                // Return default value
176                
177                if (stringListValue != null) {
178                        return stringListValue;
179                }
180                if (stringValue != null) {
181                        return stringValue;
182                }
183                return booleanValue;
184        }
185}