001 package de.deepamehta.core.model;
002
003 import org.codehaus.jettison.json.JSONObject;
004 import org.codehaus.jettison.json.JSONArray;
005
006 import java.util.ArrayList;
007 import java.util.HashMap;
008 import java.util.List;
009 import java.util.Map;
010 import java.util.logging.Logger;
011
012
013
014 /**
015 * @author <a href="mailto:jri@deepamehta.de">Jörg Richter</a>
016 */
017 public class ViewConfigurationModel {
018
019 // ---------------------------------------------------------------------------------------------- Instance Variables
020
021 /**
022 * Key: config topic type URI
023 */
024 private Map<String, TopicModel> viewConfig = new HashMap();
025
026 // ---------------------------------------------------------------------------------------------------- Constructors
027
028 public ViewConfigurationModel() {
029 }
030
031 public ViewConfigurationModel(List<TopicModel> configTopics) {
032 for (TopicModel topic : configTopics) {
033 addConfigTopic(topic);
034 }
035 }
036
037 /**
038 * @param configurable A topic type, an association type, or an association definition.
039 * ### FIXME: the sole JSONArray should be passed
040 */
041 public ViewConfigurationModel(JSONObject configurable) {
042 try {
043 JSONArray topics = configurable.optJSONArray("view_config_topics");
044 if (topics != null) {
045 for (int i = 0; i < topics.length(); i++) {
046 addConfigTopic(new TopicModel(topics.getJSONObject(i)));
047 }
048 }
049 } catch (Exception e) {
050 throw new RuntimeException("Parsing ViewConfigurationModel failed (JSONObject=" + configurable + ")", e);
051 }
052 }
053
054 // -------------------------------------------------------------------------------------------------- Public Methods
055
056 public Iterable<TopicModel> getConfigTopics() {
057 return viewConfig.values();
058 }
059
060 public void updateConfigTopic(TopicModel configTopic) {
061 String configTypeUri = configTopic.getTypeUri();
062 TopicModel confTopic = getConfigTopic(configTypeUri);
063 // error check
064 if (confTopic == null) {
065 throw new RuntimeException("There is no view configuration topic of type \"" + configTypeUri + "\"");
066 }
067 //
068 confTopic.set(configTopic);
069 }
070
071 public TopicModel addSetting(String configTypeUri, String settingUri, Object value) {
072 // create config topic if not exists
073 boolean created = false;
074 TopicModel configTopic = getConfigTopic(configTypeUri);
075 if (configTopic == null) {
076 configTopic = new TopicModel(configTypeUri);
077 addConfigTopic(configTopic);
078 created = true;
079 }
080 // make setting
081 configTopic.getCompositeValueModel().put(settingUri, value);
082 //
083 return created ? configTopic : null;
084 }
085
086 // ---
087
088 /**
089 * FIXME: to be dropped.
090 * <p>
091 * Read out a view configuration setting.
092 * <p>
093 * Compare to client-side counterpart: function get_view_config() in webclient.js
094 *
095 * @param configTypeUri The type URI of the configuration topic, e.g. "dm4.webclient.view_config"
096 * @param settingUri The setting URI, e.g. "dm4.webclient.icon"
097 *
098 * @return The setting value, or <code>null</code> if there is no such setting
099 */
100 public Object getSetting(String configTypeUri, String settingUri) {
101 TopicModel configTopic = getConfigTopic(configTypeUri);
102 if (configTopic == null) {
103 return null;
104 }
105 CompositeValueModel comp = configTopic.getCompositeValueModel();
106 return comp.has(settingUri) ? comp.getObject(settingUri) : null;
107 }
108
109 // ---
110
111 // ### FIXME: drop parameter, implement JSONEnabled
112 public void toJSON(JSONObject configurable) {
113 try {
114 List viewConfigTopics = new ArrayList();
115 for (TopicModel configTopic : getConfigTopics()) {
116 viewConfigTopics.add(configTopic.toJSON());
117 }
118 configurable.put("view_config_topics", viewConfigTopics);
119 } catch (Exception e) {
120 throw new RuntimeException("Serialization failed (" + this + ")", e);
121 }
122 }
123
124 @Override
125 public String toString() {
126 return "view configuration " + viewConfig;
127 }
128
129 // ------------------------------------------------------------------------------------------------- Private Methods
130
131 private TopicModel getConfigTopic(String configTypeUri) {
132 return viewConfig.get(configTypeUri);
133 }
134
135 private void addConfigTopic(TopicModel configTopic) {
136 String configTypeUri = configTopic.getTypeUri();
137 // error check
138 if (getConfigTopic(configTypeUri) != null) {
139 throw new RuntimeException("There is already a view configuration topic of type \"" + configTypeUri + "\"");
140 }
141 //
142 viewConfig.put(configTypeUri, configTopic);
143 }
144 }