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 addConfigTopic(TopicModel configTopic) {
061 String configTypeUri = configTopic.getTypeUri();
062 // error check
063 if (getConfigTopic(configTypeUri) != null) {
064 throw new RuntimeException("There is already a view configuration topic of type \"" + configTypeUri + "\"");
065 }
066 //
067 viewConfig.put(configTypeUri, configTopic);
068 }
069
070 public void updateConfigTopic(TopicModel configTopic) {
071 String configTypeUri = configTopic.getTypeUri();
072 TopicModel confTopic = getConfigTopic(configTypeUri);
073 // error check
074 if (confTopic == null) {
075 throw new RuntimeException("There is no view configuration topic of type \"" + configTypeUri + "\"");
076 }
077 //
078 confTopic.set(configTopic);
079 }
080
081 // ---
082
083 /**
084 * FIXME: to be dropped.
085 * <p>
086 * Read out a view configuration setting.
087 * <p>
088 * Compare to client-side counterpart: function get_view_config() in webclient.js
089 *
090 * @param configTypeUri The type URI of the configuration topic, e.g. "dm4.webclient.view_config"
091 * @param settingUri The setting URI, e.g. "dm4.webclient.icon"
092 *
093 * @return The setting value, or <code>null</code> if there is no such setting
094 */
095 public Object getSetting(String configTypeUri, String settingUri) {
096 TopicModel configTopic = getConfigTopic(configTypeUri);
097 if (configTopic == null) {
098 return null;
099 }
100 ChildTopicsModel childTopics = configTopic.getChildTopicsModel();
101 return childTopics.has(settingUri) ? childTopics.getObject(settingUri) : null;
102 }
103
104 // ---
105
106 // ### FIXME: drop parameter, implement JSONEnabled
107 public void toJSON(JSONObject configurable) {
108 try {
109 List viewConfigTopics = new ArrayList();
110 for (TopicModel configTopic : getConfigTopics()) {
111 viewConfigTopics.add(configTopic.toJSON());
112 }
113 configurable.put("view_config_topics", viewConfigTopics);
114 } catch (Exception e) {
115 throw new RuntimeException("Serialization failed (" + this + ")", e);
116 }
117 }
118
119 @Override
120 public String toString() {
121 return "view configuration " + viewConfig;
122 }
123
124 // ------------------------------------------------------------------------------------------------- Private Methods
125
126 private TopicModel getConfigTopic(String configTypeUri) {
127 return viewConfig.get(configTypeUri);
128 }
129 }