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authorSean Dague2008-09-03 18:04:44 +0000
committerSean Dague2008-09-03 18:04:44 +0000
commiteee0fa73e0eec20945ec5bdf2761acb467a7dd2b (patch)
tree7dba226f07e6682d94653244e65356c379633c16 /OpenSim/Region/Environment/Modules
parentcome up nicer on startup if the opensim.ini section isn't there (diff)
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white space fixes
Diffstat (limited to 'OpenSim/Region/Environment/Modules')
-rw-r--r--OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs518
1 files changed, 259 insertions, 259 deletions
diff --git a/OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs b/OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs
index d3b3b77..a47f83a 100644
--- a/OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs
+++ b/OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs
@@ -19,291 +19,291 @@ using System.Diagnostics;
19namespace OpenSim.Region.Environment.Modules.ContentManagement 19namespace OpenSim.Region.Environment.Modules.ContentManagement
20{ 20{
21 21
22 public class CMModel 22 public class CMModel
23 { 23 {
24 static float TimeToUpdate = 0; 24 static float TimeToUpdate = 0;
25 static float TimeToConvertXml = 0; 25 static float TimeToConvertXml = 0;
26 26
27 private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); 27 private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
28 28
29 IContentDatabase m_database = null; 29 IContentDatabase m_database = null;
30 30
31 /// <value> 31 /// <value>
32 /// The class that contains all auras and metaentities used in the CMS. 32 /// The class that contains all auras and metaentities used in the CMS.
33 /// </value> 33 /// </value>
34 CMEntityCollection m_MetaEntityCollection = new CMEntityCollection(); 34 CMEntityCollection m_MetaEntityCollection = new CMEntityCollection();
35 35
36 public CMEntityCollection MetaEntityCollection 36 public CMEntityCollection MetaEntityCollection
37 { 37 {
38 get { return m_MetaEntityCollection; } 38 get { return m_MetaEntityCollection; }
39 } 39 }
40 40
41 public CMModel() 41 public CMModel()
42 { 42 {
43 } 43 }
44 44
45 public void Initialise(string database) 45 public void Initialise(string database)
46 { 46 {
47 if (database == "FileSystemDatabase") 47 if (database == "FileSystemDatabase")
48 m_database = new FileSystemDatabase(); 48 m_database = new FileSystemDatabase();
49 else if (database == "GitDatabase") 49 else if (database == "GitDatabase")
50 m_database = new GitDatabase(); 50 m_database = new GitDatabase();
51 } 51 }
52 52
53 public void InitialiseDatabase(Scene scene, string dir) 53 public void InitialiseDatabase(Scene scene, string dir)
54 { 54 {
55 m_database.Initialise(scene, dir); 55 m_database.Initialise(scene, dir);
56 } 56 }
57 57
58 /// <summary> 58 /// <summary>
59 /// Should be called just once to finish initializing the database. 59 /// Should be called just once to finish initializing the database.
60 /// </summary> 60 /// </summary>
61 public void PostInitialise() 61 public void PostInitialise()
62 { 62 {
63 m_database.PostInitialise(); 63 m_database.PostInitialise();
64 } 64 }
65 65
66 public ContentManagementEntity FindMetaEntityAffectedByUndo(LLUUID uuid) 66 public ContentManagementEntity FindMetaEntityAffectedByUndo(LLUUID uuid)
67 { 67 {
68 ContentManagementEntity ent = GetMetaGroupByPrim(uuid); 68 ContentManagementEntity ent = GetMetaGroupByPrim(uuid);
69 return ent; 69 return ent;
70 } 70 }
71 71
72 /// <summary> 72 /// <summary>
73 /// Removes the green aura when an a new scene object group is deleted. 73 /// Removes the green aura when an a new scene object group is deleted.
74 /// </summary> 74 /// </summary>
75 public void RemoveOrUpdateDeletedEntity(SceneObjectGroup group) 75 public void RemoveOrUpdateDeletedEntity(SceneObjectGroup group)
76 { 76 {
77 // Deal with new parts not revisioned that have been deleted. 77 // Deal with new parts not revisioned that have been deleted.
78 foreach(SceneObjectPart part in group.Children.Values) 78 foreach(SceneObjectPart part in group.Children.Values)
79 if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID)) 79 if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID))
80 m_MetaEntityCollection.RemoveNewlyCreatedEntityAura(part.UUID); 80 m_MetaEntityCollection.RemoveNewlyCreatedEntityAura(part.UUID);
81 } 81 }
82 82
83 /// <summary> 83 /// <summary>
84 /// Uses the database to serialize all current scene objects into xml and save into a database with an accompanying log message. 84 /// Uses the database to serialize all current scene objects into xml and save into a database with an accompanying log message.
85 /// </summary> 85 /// </summary>
86 public void CommitRegion(Scene scene, String logMessage) 86 public void CommitRegion(Scene scene, String logMessage)
87 { 87 {
88 m_log.Debug("[CONTENT MANAG] saving " + scene.RegionInfo.RegionName + " with log message: " + logMessage + " length of message: " + logMessage.Length); 88 m_log.Debug("[CONTENT MANAG] saving " + scene.RegionInfo.RegionName + " with log message: " + logMessage + " length of message: " + logMessage.Length);
89 m_database.SaveRegion(scene.RegionInfo.RegionID, scene.RegionInfo.RegionName, logMessage); 89 m_database.SaveRegion(scene.RegionInfo.RegionID, scene.RegionInfo.RegionName, logMessage);
90 m_log.Debug("[CONTENT MANAG] the region name we are dealing with heeeeeeeere: " + scene.RegionInfo.RegionName ); 90 m_log.Debug("[CONTENT MANAG] the region name we are dealing with heeeeeeeere: " + scene.RegionInfo.RegionName );
91 } 91 }
92 92
93 /// <summary> 93 /// <summary>
94 /// Retrieves the latest revision of a region in xml form, 94 /// Retrieves the latest revision of a region in xml form,
95 /// converts it to scene object groups and scene presences, 95 /// converts it to scene object groups and scene presences,
96 /// swaps the current scene's entity list with the revision's list. 96 /// swaps the current scene's entity list with the revision's list.
97 /// Note: Since deleted objects while 97 /// Note: Since deleted objects while
98 /// </summary> 98 /// </summary>
99 public void RollbackRegion(Scene scene) 99 public void RollbackRegion(Scene scene)
100 { 100 {
101 System.Collections.ArrayList xmllist = null; 101 System.Collections.ArrayList xmllist = null;
102 SceneObjectGroup temp = null; 102 SceneObjectGroup temp = null;
103 System.Collections.Hashtable deleteListUUIDs = new Hashtable(); 103 System.Collections.Hashtable deleteListUUIDs = new Hashtable();
104 Dictionary<LLUUID, EntityBase> SearchList = new Dictionary<LLUUID,EntityBase>(); 104 Dictionary<LLUUID, EntityBase> SearchList = new Dictionary<LLUUID,EntityBase>();
105 Dictionary<LLUUID, EntityBase> ReplacementList = new Dictionary<LLUUID,EntityBase>(); 105 Dictionary<LLUUID, EntityBase> ReplacementList = new Dictionary<LLUUID,EntityBase>();
106 int revision = m_database.GetMostRecentRevision(scene.RegionInfo.RegionID); 106 int revision = m_database.GetMostRecentRevision(scene.RegionInfo.RegionID);
107 EntityBase[] searchArray; 107 EntityBase[] searchArray;
108 108
109 xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID, revision); 109 xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID, revision);
110 if (xmllist == null) 110 if (xmllist == null)
111 { 111 {
112 m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") does not have given revision number (" + revision + ")."); 112 m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") does not have given revision number (" + revision + ").");
113 return; 113 return;
114 } 114 }
115 115
116 m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") revision number (" + revision + ")."); 116 m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") revision number (" + revision + ").");
117 m_log.Info("[CMMODEL]: Scene Objects = " + xmllist.Count); 117 m_log.Info("[CMMODEL]: Scene Objects = " + xmllist.Count);
118 m_log.Info("[CMMODEL]: Converting scene entities list to specified revision."); 118 m_log.Info("[CMMODEL]: Converting scene entities list to specified revision.");
119 119
120 m_log.ErrorFormat("[CMMODEL]: 1"); 120 m_log.ErrorFormat("[CMMODEL]: 1");
121 121
122 foreach (string xml in xmllist) 122 foreach (string xml in xmllist)
123 { 123 {
124 try{ 124 try{
125 temp = new SceneObjectGroup(xml); 125 temp = new SceneObjectGroup(xml);
126 temp.SetScene(scene); 126 temp.SetScene(scene);
127 foreach(SceneObjectPart part in temp.Children.Values) 127 foreach(SceneObjectPart part in temp.Children.Values)
128 part.RegionHandle = scene.RegionInfo.RegionHandle; 128 part.RegionHandle = scene.RegionInfo.RegionHandle;
129 ReplacementList.Add(temp.UUID, (EntityBase)temp); 129 ReplacementList.Add(temp.UUID, (EntityBase)temp);
130 } 130 }
131 catch(Exception e) 131 catch(Exception e)
132 { 132 {
133 m_log.Info("[CMMODEL]: Error while creating replacement list for rollback: " + e); 133 m_log.Info("[CMMODEL]: Error while creating replacement list for rollback: " + e);
134 } 134 }
135 } 135 }
136 136
137 //If in scene but not in revision and not a client, remove them 137 //If in scene but not in revision and not a client, remove them
138 while (true) 138 while (true)
139 { 139 {
140 try 140 try
141 { 141 {
142 foreach(EntityBase entity in scene.GetEntities()) 142 foreach(EntityBase entity in scene.GetEntities())
143 { 143 {
144 if (entity == null) 144 if (entity == null)
145 continue; 145 continue;
146 146
147 if (entity is ScenePresence) 147 if (entity is ScenePresence)
148 { 148 {
149 ReplacementList.Add(entity.UUID, entity); 149 ReplacementList.Add(entity.UUID, entity);
150 continue; 150 continue;
151 } 151 }
152 else //if (!ReplacementList.ContainsKey(entity.UUID)) 152 else //if (!ReplacementList.ContainsKey(entity.UUID))
153 deleteListUUIDs.Add(entity.UUID, 0); 153 deleteListUUIDs.Add(entity.UUID, 0);
154 } 154 }
155 } 155 }
156 catch(Exception e) 156 catch(Exception e)
157 { 157 {
158 m_log.ErrorFormat("[CMMODEL]: " + e); 158 m_log.ErrorFormat("[CMMODEL]: " + e);
159 deleteListUUIDs.Clear(); 159 deleteListUUIDs.Clear();
160 ReplacementList.Clear(); 160 ReplacementList.Clear();
161 continue; 161 continue;
162 } 162 }
163 break; 163 break;
164 } 164 }
165 165
166 foreach(LLUUID uuid in deleteListUUIDs.Keys) 166 foreach(LLUUID uuid in deleteListUUIDs.Keys)
167 { 167 {
168 try 168 try
169 { 169 {
170 // I thought that the DeleteGroup() function would handle all of this, but it doesn't. I'm not sure WHAT it handles. 170 // I thought that the DeleteGroup() function would handle all of this, but it doesn't. I'm not sure WHAT it handles.
171 ((SceneObjectGroup)scene.Entities[uuid]).DetachFromBackup((SceneObjectGroup)scene.Entities[uuid]); 171 ((SceneObjectGroup)scene.Entities[uuid]).DetachFromBackup((SceneObjectGroup)scene.Entities[uuid]);
172 scene.PhysicsScene.RemovePrim(((SceneObjectGroup)scene.Entities[uuid]).RootPart.PhysActor); 172 scene.PhysicsScene.RemovePrim(((SceneObjectGroup)scene.Entities[uuid]).RootPart.PhysActor);
173 scene.SendKillObject(scene.Entities[uuid].LocalId); 173 scene.SendKillObject(scene.Entities[uuid].LocalId);
174 scene.m_innerScene.DeleteSceneObject(uuid, false); 174 scene.m_innerScene.DeleteSceneObject(uuid, false);
175 ((SceneObjectGroup)scene.Entities[uuid]).DeleteGroup(); 175 ((SceneObjectGroup)scene.Entities[uuid]).DeleteGroup();
176 } 176 }
177 catch(Exception e) 177 catch(Exception e)
178 { 178 {
179 m_log.ErrorFormat("[CMMODEL]: Error while removing objects from scene: " + e); 179 m_log.ErrorFormat("[CMMODEL]: Error while removing objects from scene: " + e);
180 } 180 }
181 } 181 }
182 182
183 lock (scene) 183 lock (scene)
184 { 184 {
185 scene.Entities = ReplacementList; 185 scene.Entities = ReplacementList;
186 } 186 }
187 187
188 foreach(EntityBase ent in ReplacementList.Values) 188 foreach(EntityBase ent in ReplacementList.Values)
189 { 189 {
190 try 190 try
191 { 191 {
192 if (!(ent is SceneObjectGroup)) 192 if (!(ent is SceneObjectGroup))
193 continue; 193 continue;
194 194
195 if ((((SceneObjectGroup)ent).RootPart.GetEffectiveObjectFlags() & (uint) LLObject.ObjectFlags.Phantom) == 0) 195 if ((((SceneObjectGroup)ent).RootPart.GetEffectiveObjectFlags() & (uint) LLObject.ObjectFlags.Phantom) == 0)
196 ((SceneObjectGroup)ent).ApplyPhysics(true); 196 ((SceneObjectGroup)ent).ApplyPhysics(true);
197 ((SceneObjectGroup)ent).AttachToBackup(); 197 ((SceneObjectGroup)ent).AttachToBackup();
198 ((SceneObjectGroup)ent).HasGroupChanged = true; // If not true, then attaching to backup does nothing because no change is detected. 198 ((SceneObjectGroup)ent).HasGroupChanged = true; // If not true, then attaching to backup does nothing because no change is detected.
199 ((SceneObjectGroup)ent).ScheduleGroupForFullUpdate(); 199 ((SceneObjectGroup)ent).ScheduleGroupForFullUpdate();
200 } 200 }
201 catch(Exception e) 201 catch(Exception e)
202 { 202 {
203 m_log.ErrorFormat("[CMMODEL]: Error while attaching new scene entities to backup and scheduling for a full update: " + e); 203 m_log.ErrorFormat("[CMMODEL]: Error while attaching new scene entities to backup and scheduling for a full update: " + e);
204 } 204 }
205 } 205 }
206 m_log.Info("[CMMODEL]: Scheduling a backup of new scene object groups to backup."); 206 m_log.Info("[CMMODEL]: Scheduling a backup of new scene object groups to backup.");
207 scene.Backup(); 207 scene.Backup();
208 } 208 }
209 209
210 /// <summary> 210 /// <summary>
211 /// Detects if a scene object group from the scene list has moved or changed scale. The green aura 211 /// Detects if a scene object group from the scene list has moved or changed scale. The green aura
212 /// that surrounds the object is then moved or scaled with the group. 212 /// that surrounds the object is then moved or scaled with the group.
213 /// </summary> 213 /// </summary>
214 public System.Collections.ArrayList UpdateNormalEntityEffects(SceneObjectGroup group) 214 public System.Collections.ArrayList UpdateNormalEntityEffects(SceneObjectGroup group)
215 { 215 {
216 System.Collections.ArrayList auraList = new System.Collections.ArrayList(); 216 System.Collections.ArrayList auraList = new System.Collections.ArrayList();
217 if (group == null) 217 if (group == null)
218 return null; 218 return null;
219 foreach(SceneObjectPart part in group.Children.Values) 219 foreach(SceneObjectPart part in group.Children.Values)
220 { 220 {
221 if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID)) 221 if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID))
222 { 222 {
223 ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).SetAura(new LLVector3(0,254,0), part.Scale); 223 ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).SetAura(new LLVector3(0,254,0), part.Scale);
224 ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).RootPart.GroupPosition = part.GetWorldPosition(); 224 ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).RootPart.GroupPosition = part.GetWorldPosition();
225 auraList.Add((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]); 225 auraList.Add((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]);
226 } 226 }
227 } 227 }
228 return auraList; 228 return auraList;
229 } 229 }
230 230
231 public void DeleteAllMetaObjects() 231 public void DeleteAllMetaObjects()
232 { 232 {
233 m_MetaEntityCollection.ClearAll(); 233 m_MetaEntityCollection.ClearAll();
234 } 234 }
235 235
236 /// <summary> 236 /// <summary>
237 /// Downloads the latest revision of the given scene and converts the xml file to CMEntities. After this method, the view can find the differences 237 /// Downloads the latest revision of the given scene and converts the xml file to CMEntities. After this method, the view can find the differences
238 /// and display the differences to clients. 238 /// and display the differences to clients.
239 /// </summary> 239 /// </summary>
240 public void UpdateCMEntities(Scene scene) 240 public void UpdateCMEntities(Scene scene)
241 { 241 {
242 Stopwatch x = new Stopwatch(); 242 Stopwatch x = new Stopwatch();
243 x.Start(); 243 x.Start();
244 244
245 System.Collections.ArrayList xmllist = null; 245 System.Collections.ArrayList xmllist = null;
246 m_log.Debug("[CONTENT MANAGEMENT] Retrieving object xml files for region: " + scene.RegionInfo.RegionID); 246 m_log.Debug("[CONTENT MANAGEMENT] Retrieving object xml files for region: " + scene.RegionInfo.RegionID);
247 xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID); 247 xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID);
248 m_log.Info("[FSDB]: got list"); 248 m_log.Info("[FSDB]: got list");
249 if (xmllist == null) 249 if (xmllist == null)
250 return; 250 return;
251 251
252 Stopwatch y = new Stopwatch(); 252 Stopwatch y = new Stopwatch();
253 y.Start(); 253 y.Start();
254 foreach (string xml in xmllist) 254 foreach (string xml in xmllist)
255 m_MetaEntityCollection.CreateNewEntity(xml, scene); 255 m_MetaEntityCollection.CreateNewEntity(xml, scene);
256 y.Stop(); 256 y.Stop();
257 TimeToConvertXml += y.ElapsedMilliseconds; 257 TimeToConvertXml += y.ElapsedMilliseconds;
258 m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities for " + scene.RegionInfo.RegionName + ": " + y.ElapsedMilliseconds); 258 m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities for " + scene.RegionInfo.RegionName + ": " + y.ElapsedMilliseconds);
259 m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities so far: " + TimeToConvertXml); 259 m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities so far: " + TimeToConvertXml);
260 260
261 m_log.Info("[FSDB]: checking for new scene object parts missing green auras and create the auras"); 261 m_log.Info("[FSDB]: checking for new scene object parts missing green auras and create the auras");
262 CheckForNewEntitiesMissingAuras(scene); 262 CheckForNewEntitiesMissingAuras(scene);
263 263
264 x.Stop(); 264 x.Stop();
265 TimeToUpdate += x.ElapsedMilliseconds; 265 TimeToUpdate += x.ElapsedMilliseconds;
266 m_log.Info("[FileSystemDatabase] Time spent Updating entity list for " + scene.RegionInfo.RegionName + ": " + x.ElapsedMilliseconds); 266 m_log.Info("[FileSystemDatabase] Time spent Updating entity list for " + scene.RegionInfo.RegionName + ": " + x.ElapsedMilliseconds);
267 m_log.Info("[FileSystemDatabase] Time spent Updating so far: " + TimeToUpdate); 267 m_log.Info("[FileSystemDatabase] Time spent Updating so far: " + TimeToUpdate);
268 268
269 } 269 }
270 270
271 /// <summary> 271 /// <summary>
272 /// Compares the scene's object group list to the list of meta entities. If there is an object group that does not have a corresponding meta entity 272 /// Compares the scene's object group list to the list of meta entities. If there is an object group that does not have a corresponding meta entity
273 /// it is a new part that must have a green aura (for diff mode). 273 /// it is a new part that must have a green aura (for diff mode).
274 /// Returns list of ContentManagementEntities 274 /// Returns list of ContentManagementEntities
275 /// </summary> 275 /// </summary>
276 public ArrayList CheckForNewEntitiesMissingAuras(Scene scene) 276 public ArrayList CheckForNewEntitiesMissingAuras(Scene scene)
277 { 277 {
278 ArrayList missingList = null; 278 ArrayList missingList = null;
279 ArrayList newList = new ArrayList(); 279 ArrayList newList = new ArrayList();
280 280
281 m_log.Debug("[CONTENT MANAGEMENT] Checking for new scene object parts in scene: " + scene.RegionInfo.RegionName); 281 m_log.Debug("[CONTENT MANAGEMENT] Checking for new scene object parts in scene: " + scene.RegionInfo.RegionName);
282 282
283 //Check if the current scene has groups not included in the current list of MetaEntities 283 //Check if the current scene has groups not included in the current list of MetaEntities
284 //If so, then the current scene's parts that are new should be marked green. 284 //If so, then the current scene's parts that are new should be marked green.
285 missingList = m_MetaEntityCollection.CheckForMissingEntities(scene.GetEntities()); 285 missingList = m_MetaEntityCollection.CheckForMissingEntities(scene.GetEntities());
286 286
287 foreach(Object missingPart in missingList) 287 foreach(Object missingPart in missingList)
288 { 288 {
289 if (m_MetaEntityCollection.Auras.ContainsKey(((SceneObjectPart)missingPart).UUID)) 289 if (m_MetaEntityCollection.Auras.ContainsKey(((SceneObjectPart)missingPart).UUID))
290 continue; 290 continue;
291 newList.Add(m_MetaEntityCollection.CreateAuraForNewlyCreatedEntity((SceneObjectPart)missingPart)); 291 newList.Add(m_MetaEntityCollection.CreateAuraForNewlyCreatedEntity((SceneObjectPart)missingPart));
292 } 292 }
293 m_log.Info("Number of missing objects found: " + newList.Count); 293 m_log.Info("Number of missing objects found: " + newList.Count);
294 return newList; 294 return newList;
295 } 295 }
296 296
297//-------------------------------- HELPERS --------------------------------------------------------------------// 297 //-------------------------------- HELPERS --------------------------------------------------------------------//
298 298
299 public ContentManagementEntity GetMetaGroupByPrim(LLUUID uuid) 299 public ContentManagementEntity GetMetaGroupByPrim(LLUUID uuid)
300 { 300 {
301 foreach (Object ent in m_MetaEntityCollection.Entities.Values) 301 foreach (Object ent in m_MetaEntityCollection.Entities.Values)
302 { 302 {
303 if (((ContentManagementEntity)ent).HasChildPrim(uuid)) 303 if (((ContentManagementEntity)ent).HasChildPrim(uuid))
304 return (ContentManagementEntity)ent; 304 return (ContentManagementEntity)ent;
305 } 305 }
306 return null; 306 return null;
307 } 307 }
308 } 308 }
309} \ No newline at end of file 309} \ No newline at end of file