001 package de.deepamehta.core.model;
002
003 import de.deepamehta.core.Identifiable;
004 import de.deepamehta.core.JSONEnabled;
005
006 import org.codehaus.jettison.json.JSONObject;
007
008
009
010 // ### TODO: differentiate between a model and an update model.
011 // ### The latter's constructor must set no default values (see #311).
012 public abstract class DeepaMehtaObjectModel implements Identifiable, JSONEnabled, Cloneable {
013
014 // ---------------------------------------------------------------------------------------------- Instance Variables
015
016 // ### TODO: make these private?
017 protected long id; // is -1 in models used for a create operation. ### FIXDOC
018 // is never -1 in models used for an update operation.
019 protected String uri; // is never null in models used for a create operation, may be empty. ### FIXDOC
020 // may be null in models used for an update operation.
021 protected String typeUri; // is never null in models used for a create operation. ### FIXDOC
022 // may be null in models used for an update operation.
023 protected SimpleValue value; // is never null in models used for a create operation, may be constructed
024 // on empty string. ### FIXDOC
025 // may be null in models used for an update operation.
026 protected CompositeValueModel composite; // is never null, may be empty. ### FIXDOC
027
028 // ---------------------------------------------------------------------------------------------------- Constructors
029
030 public DeepaMehtaObjectModel(String typeUri) {
031 this(-1, typeUri);
032 }
033
034 public DeepaMehtaObjectModel(String typeUri, SimpleValue value) {
035 this(null, typeUri, value);
036 }
037
038 public DeepaMehtaObjectModel(String typeUri, CompositeValueModel composite) {
039 this(null, typeUri, composite);
040 }
041
042 public DeepaMehtaObjectModel(String uri, String typeUri) {
043 this(-1, uri, typeUri, null, null);
044 }
045
046 public DeepaMehtaObjectModel(String uri, String typeUri, SimpleValue value) {
047 this(-1, uri, typeUri, value, null);
048 }
049
050 public DeepaMehtaObjectModel(String uri, String typeUri, CompositeValueModel composite) {
051 this(-1, uri, typeUri, null, composite);
052 }
053
054 public DeepaMehtaObjectModel(long id) {
055 this(id, null, null);
056 }
057
058 public DeepaMehtaObjectModel(long id, String typeUri) {
059 this(id, typeUri, null);
060 }
061
062 public DeepaMehtaObjectModel(long id, CompositeValueModel composite) {
063 this(id, null, composite);
064 }
065
066 public DeepaMehtaObjectModel(long id, String typeUri, CompositeValueModel composite) {
067 this(id, null, typeUri, null, composite);
068 }
069
070 /**
071 * @param uri If <code>null</code> an empty string is set. This is OK. ### FIXDOC
072 * @param typeUri Mandatory. Note: only the internal meta type topic (ID 0) has no type URI (null). ### FIXDOC
073 * @param value If <code>null</code> an empty string value is set. This is OK. ### FIXDOC
074 * @param composite If <code>null</code> an empty composite is set. This is OK. ### FIXDOC
075 */
076 public DeepaMehtaObjectModel(long id, String uri, String typeUri, SimpleValue value,
077 CompositeValueModel composite) {
078 this.id = id;
079 this.uri = uri != null ? uri : ""; // ### FIXME: don't set default at this level
080 this.typeUri = typeUri;
081 this.value = value != null ? value : new SimpleValue(""); // ### FIXME: don't set default at this level
082 this.composite = composite != null ? composite : new CompositeValueModel();
083 }
084
085 public DeepaMehtaObjectModel(DeepaMehtaObjectModel model) {
086 this(model.id, model.uri, model.typeUri, model.value, model.composite);
087 }
088
089 /**
090 * Used for regular objects: topics and associations.
091 */
092 public DeepaMehtaObjectModel(JSONObject model) {
093 try {
094 this.id = model.optLong("id", -1);
095 this.uri = model.optString("uri", null);
096 this.typeUri = model.optString("type_uri", null);
097 this.value = model.has("value") ? new SimpleValue(model.get("value")) : null;
098 this.composite = model.has("composite") ? new CompositeValueModel(model.getJSONObject("composite"))
099 : new CompositeValueModel();
100 } catch (Exception e) {
101 throw new RuntimeException("Parsing DeepaMehtaObjectModel failed (JSONObject=" + model + ")", e);
102 }
103 }
104
105 /**
106 * Used for types: topic types and association types.
107 */
108 public DeepaMehtaObjectModel(JSONObject typeModel, String typeUri) {
109 try {
110 this.id = typeModel.optLong("id", -1);
111 this.uri = typeModel.optString("uri");
112 this.typeUri = typeUri;
113 this.value = new SimpleValue(typeModel.get("value"));
114 this.composite = new CompositeValueModel();
115 } catch (Exception e) {
116 throw new RuntimeException("Parsing DeepaMehtaObjectModel failed (JSONObject=" + typeModel +
117 ", typeUri=\"" + typeUri + "\")", e);
118 }
119 }
120
121 // -------------------------------------------------------------------------------------------------- Public Methods
122
123 // --- ID ---
124
125 public long getId() {
126 return id;
127 }
128
129 public void setId(long id) {
130 this.id = id;
131 }
132
133 // --- URI ---
134
135 public String getUri() {
136 return uri;
137 }
138
139 public void setUri(String uri) {
140 this.uri = uri;
141 }
142
143 // --- Type URI ---
144
145 public String getTypeUri() {
146 return typeUri;
147 }
148
149 public void setTypeUri(String typeUri) {
150 this.typeUri = typeUri;
151 }
152
153 // --- Simple Value ---
154
155 public SimpleValue getSimpleValue() {
156 return value;
157 }
158
159 // ---
160
161 public void setSimpleValue(String value) {
162 setSimpleValue(new SimpleValue(value));
163 }
164
165 public void setSimpleValue(int value) {
166 setSimpleValue(new SimpleValue(value));
167 }
168
169 public void setSimpleValue(long value) {
170 setSimpleValue(new SimpleValue(value));
171 }
172
173 public void setSimpleValue(boolean value) {
174 setSimpleValue(new SimpleValue(value));
175 }
176
177 public void setSimpleValue(SimpleValue value) {
178 this.value = value;
179 }
180
181 // --- Composite Value ---
182
183 public CompositeValueModel getCompositeValueModel() {
184 return composite;
185 }
186
187 public void setCompositeValue(CompositeValueModel comp) {
188 this.composite = comp;
189 }
190
191 // ---
192
193 public void set(DeepaMehtaObjectModel model) {
194 setId(model.getId());
195 setUri(model.getUri());
196 setTypeUri(model.getTypeUri());
197 setSimpleValue(model.getSimpleValue());
198 setCompositeValue(model.getCompositeValueModel());
199 }
200
201 // ---
202
203 public abstract RoleModel createRoleModel(String roleTypeUri);
204
205
206
207 // === Serialization ===
208
209 @Override
210 public JSONObject toJSON() {
211 try {
212 JSONObject o = new JSONObject();
213 o.put("id", id);
214 o.put("uri", uri);
215 o.put("type_uri", typeUri);
216 o.put("value", value.value());
217 o.put("composite", composite.toJSON());
218 return o;
219 } catch (Exception e) {
220 throw new RuntimeException("Serialization failed (" + this + ")", e);
221 }
222 }
223
224
225
226 // === Java API ===
227
228 @Override
229 public DeepaMehtaObjectModel clone() {
230 try {
231 DeepaMehtaObjectModel model = (DeepaMehtaObjectModel) super.clone();
232 model.composite = composite.clone();
233 return model;
234 } catch (Exception e) {
235 throw new RuntimeException("Cloning a DeepaMehtaObjectModel failed", e);
236 }
237 }
238
239 @Override
240 public boolean equals(Object o) {
241 return ((DeepaMehtaObjectModel) o).id == id;
242 }
243
244 @Override
245 public int hashCode() {
246 return ((Long) id).hashCode();
247 }
248
249 @Override
250 public String toString() {
251 return "id=" + id + ", uri=\"" + uri + "\", typeUri=\"" + typeUri + "\", value=\"" + value +
252 "\", composite=" + composite;
253 }
254 }