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authordiva2009-06-07 19:00:55 +0000
committerdiva2009-06-07 19:00:55 +0000
commit1ad237a8a757a0e6074278aff76805d01abf0c0b (patch)
treee6a697dd113aeb90c7dd92ee4d07f278d7ebf8de /OpenSim/Framework/InventoryFolderImpl.cs
parentSkip lone ident statments or for-loop assignments (diff)
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First draft of inventory service connectors, and service implementation. No handlers yet, this is just the OUT part for now. It's not active and nothing in the simulator uses this yet. Just checking it in to start sharing with others. There are a couple of interesting software design points that could use other devs opinions.
Hopefully I added all needed files.
Diffstat (limited to 'OpenSim/Framework/InventoryFolderImpl.cs')
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diff --git a/OpenSim/Framework/InventoryFolderImpl.cs b/OpenSim/Framework/InventoryFolderImpl.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections.Generic;
30using OpenMetaverse;
31
32namespace OpenSim.Framework
33{
34 public class InventoryFolderImpl : InventoryFolderBase
35 {
36 //private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
37
38 public static readonly string PATH_DELIMITER = "/";
39
40 /// <summary>
41 /// Items that are contained in this folder
42 /// </summary>
43 public Dictionary<UUID, InventoryItemBase> Items = new Dictionary<UUID, InventoryItemBase>();
44
45 /// <summary>
46 /// Child folders that are contained in this folder
47 /// </summary>
48 protected Dictionary<UUID, InventoryFolderImpl> m_childFolders = new Dictionary<UUID, InventoryFolderImpl>();
49
50 // Constructors
51 public InventoryFolderImpl(InventoryFolderBase folderbase)
52 {
53 Owner = folderbase.Owner;
54 ID = folderbase.ID;
55 Name = folderbase.Name;
56 ParentID = folderbase.ParentID;
57 Type = folderbase.Type;
58 Version = folderbase.Version;
59 }
60
61 public InventoryFolderImpl()
62 {
63 }
64
65 /// <summary>
66 /// Create a new subfolder.
67 /// </summary>
68 /// <param name="folderID"></param>
69 /// <param name="folderName"></param>
70 /// <param name="type"></param>
71 /// <returns>The newly created subfolder. Returns null if the folder already exists</returns>
72 public InventoryFolderImpl CreateChildFolder(UUID folderID, string folderName, ushort type)
73 {
74 lock (m_childFolders)
75 {
76 if (!m_childFolders.ContainsKey(folderID))
77 {
78 InventoryFolderImpl subFold = new InventoryFolderImpl();
79 subFold.Name = folderName;
80 subFold.ID = folderID;
81 subFold.Type = (short)type;
82 subFold.ParentID = this.ID;
83 subFold.Owner = Owner;
84 m_childFolders.Add(subFold.ID, subFold);
85
86 return subFold;
87 }
88 }
89
90 return null;
91 }
92
93 /// <summary>
94 /// Add a folder that already exists.
95 /// </summary>
96 /// <param name="folder"></param>
97 public void AddChildFolder(InventoryFolderImpl folder)
98 {
99 lock (m_childFolders)
100 {
101 folder.ParentID = ID;
102 m_childFolders[folder.ID] = folder;
103 }
104 }
105
106 /// <summary>
107 /// Does this folder contain the given child folder?
108 /// </summary>
109 /// <param name="folderID"></param>
110 /// <returns></returns>
111 public bool ContainsChildFolder(UUID folderID)
112 {
113 return m_childFolders.ContainsKey(folderID);
114 }
115
116 /// <summary>
117 /// Get a child folder
118 /// </summary>
119 /// <param name="folderID"></param>
120 /// <returns>The folder if it exists, null if it doesn't</returns>
121 public InventoryFolderImpl GetChildFolder(UUID folderID)
122 {
123 InventoryFolderImpl folder = null;
124
125 lock (m_childFolders)
126 {
127 m_childFolders.TryGetValue(folderID, out folder);
128 }
129
130 return folder;
131 }
132
133 /// <summary>
134 /// Removes the given child subfolder.
135 /// </summary>
136 /// <param name="folderID"></param>
137 /// <returns>
138 /// The folder removed, or null if the folder was not present.
139 /// </returns>
140 public InventoryFolderImpl RemoveChildFolder(UUID folderID)
141 {
142 InventoryFolderImpl removedFolder = null;
143
144 lock (m_childFolders)
145 {
146 if (m_childFolders.ContainsKey(folderID))
147 {
148 removedFolder = m_childFolders[folderID];
149 m_childFolders.Remove(folderID);
150 }
151 }
152
153 return removedFolder;
154 }
155
156 /// <summary>
157 /// Delete all the folders and items in this folder.
158 /// </summary>
159 public void Purge()
160 {
161 foreach (InventoryFolderImpl folder in m_childFolders.Values)
162 {
163 folder.Purge();
164 }
165
166 m_childFolders.Clear();
167 Items.Clear();
168 }
169
170 /// <summary>
171 /// Returns the item if it exists in this folder or in any of this folder's descendant folders
172 /// </summary>
173 /// <param name="itemID"></param>
174 /// <returns>null if the item is not found</returns>
175 public InventoryItemBase FindItem(UUID itemID)
176 {
177 lock (Items)
178 {
179 if (Items.ContainsKey(itemID))
180 {
181 return Items[itemID];
182 }
183 }
184
185 lock (m_childFolders)
186 {
187 foreach (InventoryFolderImpl folder in m_childFolders.Values)
188 {
189 InventoryItemBase item = folder.FindItem(itemID);
190
191 if (item != null)
192 {
193 return item;
194 }
195 }
196 }
197
198 return null;
199 }
200
201 public InventoryItemBase FindAsset(UUID assetID)
202 {
203 lock (Items)
204 {
205 foreach (InventoryItemBase item in Items.Values)
206 {
207 if (item.AssetID == assetID)
208 return item;
209 }
210 }
211
212 lock (m_childFolders)
213 {
214 foreach (InventoryFolderImpl folder in m_childFolders.Values)
215 {
216 InventoryItemBase item = folder.FindAsset(assetID);
217
218 if (item != null)
219 {
220 return item;
221 }
222 }
223 }
224
225 return null;
226 }
227
228 /// <summary>
229 /// Deletes an item if it exists in this folder or any children
230 /// </summary>
231 /// <param name="folderID"></param>
232 /// <returns></returns>
233 public bool DeleteItem(UUID itemID)
234 {
235 bool found = false;
236
237 lock (Items)
238 {
239 if (Items.ContainsKey(itemID))
240 {
241 Items.Remove(itemID);
242 return true;
243 }
244 }
245
246 lock (m_childFolders)
247 {
248 foreach (InventoryFolderImpl folder in m_childFolders.Values)
249 {
250 found = folder.DeleteItem(itemID);
251
252 if (found == true)
253 {
254 break;
255 }
256 }
257 }
258
259 return found;
260 }
261
262 /// <summary>
263 /// Returns the folder requested if it is this folder or is a descendent of this folder. The search is depth
264 /// first.
265 /// </summary>
266 /// <returns>The requested folder if it exists, null if it does not.</returns>
267 public InventoryFolderImpl FindFolder(UUID folderID)
268 {
269 if (folderID == ID)
270 return this;
271
272 lock (m_childFolders)
273 {
274 foreach (InventoryFolderImpl folder in m_childFolders.Values)
275 {
276 InventoryFolderImpl returnFolder = folder.FindFolder(folderID);
277
278 if (returnFolder != null)
279 return returnFolder;
280 }
281 }
282
283 return null;
284 }
285
286 /// <summary>
287 /// Look through all child subfolders for a folder marked as one for a particular asset type, and return it.
288 /// </summary>
289 /// <param name="type"></param>
290 /// <returns>Returns null if no such folder is found</returns>
291 public InventoryFolderImpl FindFolderForType(int type)
292 {
293 lock (m_childFolders)
294 {
295 foreach (InventoryFolderImpl f in m_childFolders.Values)
296 {
297 if (f.Type == type)
298 return f;
299 }
300 }
301
302 return null;
303 }
304
305 /// <summary>
306 /// Find a folder given a PATH_DELIMITER delimited path starting from this folder
307 /// </summary>
308 ///
309 /// This method does not handle paths that contain multiple delimitors
310 ///
311 /// FIXME: We do not yet handle situations where folders have the same name. We could handle this by some
312 /// XPath like expression
313 ///
314 /// FIXME: Delimitors which occur in names themselves are not currently escapable.
315 ///
316 /// <param name="path">
317 /// The path to the required folder.
318 /// It this is empty or consists only of the PATH_DELIMTER then this folder itself is returned.
319 /// </param>
320 /// <returns>null if the folder is not found</returns>
321 public InventoryFolderImpl FindFolderByPath(string path)
322 {
323 if (path == string.Empty)
324 return this;
325
326 path = path.Trim();
327
328 if (path == PATH_DELIMITER)
329 return this;
330
331 string[] components = path.Split(new string[] { PATH_DELIMITER }, 2, StringSplitOptions.None);
332
333 lock (m_childFolders)
334 {
335 foreach (InventoryFolderImpl folder in m_childFolders.Values)
336 {
337 if (folder.Name == components[0])
338 if (components.Length > 1)
339 return folder.FindFolderByPath(components[1]);
340 else
341 return folder;
342 }
343 }
344
345 // We didn't find a folder with the given name
346 return null;
347 }
348
349 /// <summary>
350 /// Find an item given a PATH_DELIMITOR delimited path starting from this folder.
351 ///
352 /// This method does not handle paths that contain multiple delimitors
353 ///
354 /// FIXME: We do not yet handle situations where folders or items have the same name. We could handle this by some
355 /// XPath like expression
356 ///
357 /// FIXME: Delimitors which occur in names themselves are not currently escapable.
358 /// </summary>
359 /// <param name="path">
360 /// The path to the required item.
361 /// </param>
362 /// <returns>null if the item is not found</returns>
363 public InventoryItemBase FindItemByPath(string path)
364 {
365 string[] components = path.Split(new string[] { PATH_DELIMITER }, 2, StringSplitOptions.None);
366
367 if (components.Length == 1)
368 {
369 lock (Items)
370 {
371 foreach (InventoryItemBase item in Items.Values)
372 {
373 if (item.Name == components[0])
374 return item;
375 }
376 }
377 }
378 else
379 {
380 lock (m_childFolders)
381 {
382 foreach (InventoryFolderImpl folder in m_childFolders.Values)
383 {
384 if (folder.Name == components[0])
385 return folder.FindItemByPath(components[1]);
386 }
387 }
388 }
389
390 // We didn't find an item or intermediate folder with the given name
391 return null;
392 }
393
394 /// <summary>
395 /// Return a copy of the list of child items in this folder. The items themselves are the originals.
396 /// </summary>
397 public List<InventoryItemBase> RequestListOfItems()
398 {
399 List<InventoryItemBase> itemList = new List<InventoryItemBase>();
400
401 lock (Items)
402 {
403 foreach (InventoryItemBase item in Items.Values)
404 {
405 itemList.Add(item);
406 }
407 }
408
409 //m_log.DebugFormat("[INVENTORY FOLDER IMPL]: Found {0} items", itemList.Count);
410
411 return itemList;
412 }
413
414 /// <summary>
415 /// Return a copy of the list of child folders in this folder. The folders themselves are the originals.
416 /// </summary>
417 public List<InventoryFolderBase> RequestListOfFolders()
418 {
419 List<InventoryFolderBase> folderList = new List<InventoryFolderBase>();
420
421 lock (m_childFolders)
422 {
423 foreach (InventoryFolderBase folder in m_childFolders.Values)
424 {
425 folderList.Add(folder);
426 }
427 }
428
429 return folderList;
430 }
431
432 public List<InventoryFolderImpl> RequestListOfFolderImpls()
433 {
434 List<InventoryFolderImpl> folderList = new List<InventoryFolderImpl>();
435
436 lock (m_childFolders)
437 {
438 foreach (InventoryFolderImpl folder in m_childFolders.Values)
439 {
440 folderList.Add(folder);
441 }
442 }
443
444 return folderList;
445 }
446
447 /// <value>
448 /// The total number of items in this folder and in the immediate child folders (though not from other
449 /// descendants).
450 /// </value>
451 public int TotalCount
452 {
453 get
454 {
455 int total = Items.Count;
456
457 foreach (InventoryFolderImpl folder in m_childFolders.Values)
458 {
459 total = total + folder.TotalCount;
460 }
461
462 return total;
463 }
464 }
465 }
466}
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