aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/Environment/Modules/ContentManagementSystem/CMModel.cs
blob: a47f83ab7bbd5eed5184b54ae8a71d63c84e0262 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
// CMModel.cs 
// User: bongiojp 
//
//

using System;
using System.Collections.Generic;
using System.Collections;
using libsecondlife;
using OpenSim;
using OpenSim.Framework;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
using log4net;
using OpenSim.Region.Physics.Manager;
using Axiom.Math;
using System.Diagnostics;

namespace OpenSim.Region.Environment.Modules.ContentManagement
{

    public class CMModel
    {			
        static float TimeToUpdate = 0;
        static float TimeToConvertXml = 0;
	
        private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        
        IContentDatabase m_database = null;
	
        /// <value>
        /// The class that contains all auras and metaentities used in the CMS.
        /// </value>
        CMEntityCollection m_MetaEntityCollection = new CMEntityCollection();
	
        public CMEntityCollection MetaEntityCollection
        {
            get { return m_MetaEntityCollection; }
        }
	
        public CMModel()
        {
        }
	
        public void Initialise(string database)
        {
            if (database == "FileSystemDatabase")
                m_database = new FileSystemDatabase();
            else if (database == "GitDatabase")
                m_database = new GitDatabase();
        }
	
        public void InitialiseDatabase(Scene scene, string dir)
        {
            m_database.Initialise(scene, dir);
        }
	
        /// <summary>
        /// Should be called just once to finish initializing the database.
        /// </summary>
        public void PostInitialise()
        {
            m_database.PostInitialise();
        }
	
        public ContentManagementEntity FindMetaEntityAffectedByUndo(LLUUID uuid)
        {
            ContentManagementEntity ent = GetMetaGroupByPrim(uuid);
            return ent;
        }
		
        /// <summary>
        /// Removes the green aura when an a new scene object group is deleted.
        /// </summary>
        public void RemoveOrUpdateDeletedEntity(SceneObjectGroup group)
        {
            // Deal with new parts not revisioned that have been deleted.
            foreach(SceneObjectPart part in group.Children.Values)
                if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID))
                    m_MetaEntityCollection.RemoveNewlyCreatedEntityAura(part.UUID);
        }
		
        /// <summary>
        /// Uses the database to serialize all current scene objects into xml and save into a database with an accompanying log message.
        /// </summary>
        public void CommitRegion(Scene scene, String logMessage)
        {
            m_log.Debug("[CONTENT MANAG] saving " + scene.RegionInfo.RegionName + " with log message: " + logMessage + " length of message: " + logMessage.Length);
            m_database.SaveRegion(scene.RegionInfo.RegionID, scene.RegionInfo.RegionName, logMessage);
            m_log.Debug("[CONTENT MANAG] the region name we are dealing with heeeeeeeere: " + scene.RegionInfo.RegionName );
        }
		
        /// <summary>
        /// Retrieves the latest revision of a region in xml form, 
        /// converts it to scene object groups and scene presences, 
        /// swaps the current scene's entity list with the revision's list.
        /// Note: Since deleted objects while 
        /// </summary>
        public void RollbackRegion(Scene scene)
        {
            System.Collections.ArrayList xmllist = null;
            SceneObjectGroup temp = null;
            System.Collections.Hashtable deleteListUUIDs = new Hashtable();
            Dictionary<LLUUID, EntityBase> SearchList = new Dictionary<LLUUID,EntityBase>();
            Dictionary<LLUUID, EntityBase> ReplacementList = new Dictionary<LLUUID,EntityBase>();
            int revision = m_database.GetMostRecentRevision(scene.RegionInfo.RegionID);
            EntityBase[] searchArray;
			
            xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID, revision);
            if (xmllist == null)
            {
                m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") does not have given revision number (" + revision + ").");
                return;
            }
			
            m_log.Info("[CMMODEL]: Region (" + scene.RegionInfo.RegionID + ") revision number (" + revision + ").");
            m_log.Info("[CMMODEL]: Scene Objects = " + xmllist.Count);
            m_log.Info("[CMMODEL]: Converting scene entities list to specified revision.");
			
            m_log.ErrorFormat("[CMMODEL]: 1");
			
            foreach (string xml in xmllist)
            {
                try{
                    temp = new SceneObjectGroup(xml);
                    temp.SetScene(scene);
                    foreach(SceneObjectPart part in temp.Children.Values)
                        part.RegionHandle = scene.RegionInfo.RegionHandle;
                    ReplacementList.Add(temp.UUID, (EntityBase)temp);
                } 
                catch(Exception e)
                {
                    m_log.Info("[CMMODEL]: Error while creating replacement list for rollback: " + e);
                }		
            }

            //If in scene but not in revision and not a client, remove them
            while (true)
            {
                try 
                {
                    foreach(EntityBase entity in scene.GetEntities())
                    {
                        if (entity == null)
                            continue;
						
                        if (entity is ScenePresence)
                        {
                            ReplacementList.Add(entity.UUID, entity);
                            continue;
                        }
                        else //if (!ReplacementList.ContainsKey(entity.UUID))
                            deleteListUUIDs.Add(entity.UUID, 0);
                    }
                }
                catch(Exception e)
                {
                    m_log.ErrorFormat("[CMMODEL]: " + e);
                    deleteListUUIDs.Clear();
                    ReplacementList.Clear();
                    continue;
                }
                break;
            }
			
            foreach(LLUUID uuid in deleteListUUIDs.Keys)
            {
                try 
                {
                    // I thought that the DeleteGroup() function would handle all of this, but it doesn't. I'm not sure WHAT it handles.
                    ((SceneObjectGroup)scene.Entities[uuid]).DetachFromBackup((SceneObjectGroup)scene.Entities[uuid]);
                    scene.PhysicsScene.RemovePrim(((SceneObjectGroup)scene.Entities[uuid]).RootPart.PhysActor);
                    scene.SendKillObject(scene.Entities[uuid].LocalId);
                    scene.m_innerScene.DeleteSceneObject(uuid, false);
                    ((SceneObjectGroup)scene.Entities[uuid]).DeleteGroup();
                }
                catch(Exception e)
                {
                    m_log.ErrorFormat("[CMMODEL]: Error while removing objects from scene: " + e);
                }
            }
			
            lock (scene)
            {
                scene.Entities = ReplacementList;
            }

            foreach(EntityBase ent in ReplacementList.Values)
            {
                try
                {	
                    if (!(ent is SceneObjectGroup))
                        continue;
					
                    if ((((SceneObjectGroup)ent).RootPart.GetEffectiveObjectFlags() & (uint) LLObject.ObjectFlags.Phantom) == 0)
                        ((SceneObjectGroup)ent).ApplyPhysics(true);
                    ((SceneObjectGroup)ent).AttachToBackup();
                    ((SceneObjectGroup)ent).HasGroupChanged = true; // If not true, then attaching to backup does nothing because no change is detected.
                    ((SceneObjectGroup)ent).ScheduleGroupForFullUpdate();
                }
                catch(Exception e)
                {
                    m_log.ErrorFormat("[CMMODEL]: Error while attaching new scene entities to backup and scheduling for a full update: " + e);
                }
            }
            m_log.Info("[CMMODEL]: Scheduling a backup of new scene object groups to backup.");
            scene.Backup();
        }
		
        /// <summary>
        /// Detects if a scene object group from the scene list has moved or changed scale. The green aura
        /// that surrounds the object is then moved or scaled with the group.
        /// </summary>
        public System.Collections.ArrayList UpdateNormalEntityEffects(SceneObjectGroup group)
        {
            System.Collections.ArrayList auraList = new System.Collections.ArrayList();
            if (group == null)
                return null;
            foreach(SceneObjectPart part in group.Children.Values)
            {
                if (m_MetaEntityCollection.Auras.ContainsKey(part.UUID))
                {
                    ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).SetAura(new LLVector3(0,254,0), part.Scale);
                    ((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]).RootPart.GroupPosition = part.GetWorldPosition();
                    auraList.Add((AuraMetaEntity)m_MetaEntityCollection.Auras[part.UUID]);
                }
            }
            return auraList;
        }
		
        public void DeleteAllMetaObjects()
        {
            m_MetaEntityCollection.ClearAll();
        }

        /// <summary>
        /// Downloads the latest revision of the given scene and converts the xml file to CMEntities. After this method, the view can find the differences
        /// and display the differences to clients.
        /// </summary>
        public void UpdateCMEntities(Scene scene)
        {
            Stopwatch x = new Stopwatch();
            x.Start();

            System.Collections.ArrayList xmllist = null;
            m_log.Debug("[CONTENT MANAGEMENT] Retrieving object xml files for region: " + scene.RegionInfo.RegionID);
            xmllist = m_database.GetRegionObjectXMLList(scene.RegionInfo.RegionID);
            m_log.Info("[FSDB]: got list");
            if (xmllist == null)
                return;

            Stopwatch y = new Stopwatch();
            y.Start();
            foreach (string xml in xmllist)
                m_MetaEntityCollection.CreateNewEntity(xml, scene);
            y.Stop();
            TimeToConvertXml += y.ElapsedMilliseconds;
            m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities for " + scene.RegionInfo.RegionName + ": " + y.ElapsedMilliseconds);		
            m_log.Info("[FileSystemDatabase] Time spent converting xml to metaentities so far: " + TimeToConvertXml);			
			
            m_log.Info("[FSDB]: checking for new scene object parts missing green auras and create the auras");
            CheckForNewEntitiesMissingAuras(scene);
			
            x.Stop();
            TimeToUpdate += x.ElapsedMilliseconds;
            m_log.Info("[FileSystemDatabase] Time spent Updating entity list for " + scene.RegionInfo.RegionName + ": " + x.ElapsedMilliseconds);		
            m_log.Info("[FileSystemDatabase] Time spent Updating so far: " + TimeToUpdate);
			
        }
		
        /// <summary>
        /// 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
        /// it is a new part that must have a green aura (for diff mode).
        /// Returns list of ContentManagementEntities
        /// </summary>
        public ArrayList CheckForNewEntitiesMissingAuras(Scene scene)
        {	
            ArrayList missingList = null;
            ArrayList newList = new ArrayList();
			
            m_log.Debug("[CONTENT MANAGEMENT] Checking for new scene object parts in scene: " + scene.RegionInfo.RegionName);		
			
            //Check if the current scene has groups not included in the current list of MetaEntities
            //If so, then the current scene's parts that are new should be marked green.		
            missingList = m_MetaEntityCollection.CheckForMissingEntities(scene.GetEntities());

            foreach(Object missingPart in missingList)
            {
                if (m_MetaEntityCollection.Auras.ContainsKey(((SceneObjectPart)missingPart).UUID))
                    continue;
                newList.Add(m_MetaEntityCollection.CreateAuraForNewlyCreatedEntity((SceneObjectPart)missingPart));
            }
            m_log.Info("Number of missing objects found: " + newList.Count);
            return newList;
        }
		
        //-------------------------------- HELPERS --------------------------------------------------------------------//
		
        public ContentManagementEntity GetMetaGroupByPrim(LLUUID uuid)
        {
            foreach (Object ent in m_MetaEntityCollection.Entities.Values)
            {
                if (((ContentManagementEntity)ent).HasChildPrim(uuid))
                    return (ContentManagementEntity)ent;
            }
            return null;
        }
    }	
}