root / trunk / Pithos.Core / FileState.cs @ 99e6329f
History | View | Annotate | Download (17.6 kB)
1 |
#region |
---|---|
2 |
/* ----------------------------------------------------------------------- |
3 |
* <copyright file="FileState.cs" company="GRNet"> |
4 |
* |
5 |
* Copyright 2011-2012 GRNET S.A. All rights reserved. |
6 |
* |
7 |
* Redistribution and use in source and binary forms, with or |
8 |
* without modification, are permitted provided that the following |
9 |
* conditions are met: |
10 |
* |
11 |
* 1. Redistributions of source code must retain the above |
12 |
* copyright notice, this list of conditions and the following |
13 |
* disclaimer. |
14 |
* |
15 |
* 2. Redistributions in binary form must reproduce the above |
16 |
* copyright notice, this list of conditions and the following |
17 |
* disclaimer in the documentation and/or other materials |
18 |
* provided with the distribution. |
19 |
* |
20 |
* |
21 |
* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
22 |
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
23 |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
24 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
25 |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
26 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
27 |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
28 |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
29 |
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
31 |
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
32 |
* POSSIBILITY OF SUCH DAMAGE. |
33 |
* |
34 |
* The views and conclusions contained in the software and |
35 |
* documentation are those of the authors and should not be |
36 |
* interpreted as representing official policies, either expressed |
37 |
* or implied, of GRNET S.A. |
38 |
* </copyright> |
39 |
* ----------------------------------------------------------------------- |
40 |
*/ |
41 |
#endregion |
42 |
using System.Diagnostics.Contracts; |
43 |
using System.IO; |
44 |
using System.Threading.Tasks; |
45 |
using Castle.ActiveRecord; |
46 |
using Castle.ActiveRecord.Framework; |
47 |
using Castle.ActiveRecord.Queries; |
48 |
using NHibernate.Criterion; |
49 |
using Pithos.Core.Agents; |
50 |
using Pithos.Interfaces; |
51 |
using Pithos.Network; |
52 |
using log4net; |
53 |
|
54 |
namespace Pithos.Core |
55 |
{ |
56 |
using System; |
57 |
using System.Collections.Generic; |
58 |
|
59 |
/// <summary> |
60 |
/// TODO: Update summary. |
61 |
/// </summary> |
62 |
[ActiveRecord] |
63 |
public class FileState : ActiveRecordLinqBase<FileState> |
64 |
{ |
65 |
private static readonly ILog Log = LogManager.GetLogger("FileState"); |
66 |
|
67 |
private IList<FileTag> _tags = new List<FileTag>(); |
68 |
|
69 |
[PrimaryKey(PrimaryKeyType.Guid)] |
70 |
public Guid Id { get; set; } |
71 |
|
72 |
|
73 |
[Property(Unique = true, UniqueKey = "IX_FileState_FilePath")] |
74 |
public string FilePath { get; set; } |
75 |
|
76 |
[Property] |
77 |
public FileOverlayStatus OverlayStatus { get; set; } |
78 |
|
79 |
[Property] |
80 |
public FileStatus FileStatus { get; set; } |
81 |
|
82 |
[Property] |
83 |
public string Checksum { get; set; } |
84 |
|
85 |
|
86 |
[Property] |
87 |
public long? Version { get; set; } |
88 |
|
89 |
[Property] |
90 |
public DateTime? VersionTimeStamp { get; set; } |
91 |
|
92 |
|
93 |
[Property] |
94 |
public bool IsShared { get; set; } |
95 |
|
96 |
[Property] |
97 |
public string SharedBy { get; set; } |
98 |
|
99 |
[Property] |
100 |
public bool ShareWrite { get; set; } |
101 |
|
102 |
[Property] |
103 |
public bool IsFolder{ get; set; } |
104 |
|
105 |
[HasMany(Cascade = ManyRelationCascadeEnum.AllDeleteOrphan, Lazy = true, Inverse = true)] |
106 |
public IList<FileTag> Tags |
107 |
{ |
108 |
get { return _tags; } |
109 |
set { _tags = value; } |
110 |
} |
111 |
|
112 |
[Property] |
113 |
public DateTime Modified { get; set; } |
114 |
|
115 |
|
116 |
public FileSystemInfo GetFileSystemInfo() |
117 |
{ |
118 |
if (String.IsNullOrWhiteSpace(FilePath)) |
119 |
throw new InvalidOperationException(); |
120 |
Contract.EndContractBlock(); |
121 |
|
122 |
return Directory.Exists(FilePath) ? |
123 |
(FileSystemInfo)new DirectoryInfo(FilePath) |
124 |
: new FileInfo(FilePath); |
125 |
} |
126 |
|
127 |
public string GetRelativeUrl(AccountInfo accountInfo) |
128 |
{ |
129 |
if (accountInfo==null) |
130 |
throw new ArgumentNullException("accountInfo"); |
131 |
Contract.EndContractBlock(); |
132 |
|
133 |
var fsi=GetFileSystemInfo(); |
134 |
return fsi.AsRelativeUrlTo(accountInfo.AccountPath); |
135 |
} |
136 |
/*public static FileState FindByFilePath(string absolutePath) |
137 |
{ |
138 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
139 |
throw new ArgumentNullException("absolutePath"); |
140 |
Contract.EndContractBlock(); |
141 |
try |
142 |
{ |
143 |
|
144 |
|
145 |
|
146 |
return Queryable.FirstOrDefault(s => s.FilePath == absolutePath); |
147 |
} |
148 |
catch (Exception ex) |
149 |
{ |
150 |
Log.Error(ex.ToString()); |
151 |
throw; |
152 |
} |
153 |
|
154 |
|
155 |
}*/ |
156 |
|
157 |
/* public static void DeleteByFilePath(string absolutePath) |
158 |
{ |
159 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
160 |
throw new ArgumentNullException("absolutePath"); |
161 |
Contract.EndContractBlock(); |
162 |
|
163 |
ExecuteWithRetry((session, instance) => |
164 |
{ |
165 |
const string hqlDelete = "delete FileState where FilePath = :path"; |
166 |
var deletedEntities = session.CreateQuery(hqlDelete) |
167 |
.SetString("path", absolutePath) |
168 |
.ExecuteUpdate(); |
169 |
return deletedEntities; |
170 |
}, null); |
171 |
|
172 |
}*/ |
173 |
|
174 |
public static void StoreFileStatus(string absolutePath, FileStatus newStatus) |
175 |
{ |
176 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
177 |
throw new ArgumentNullException("absolutePath"); |
178 |
Contract.EndContractBlock(); |
179 |
|
180 |
ExecuteWithRetry((session, instance) => |
181 |
{ |
182 |
const string hqlUpdate = "update FileState set FileStatus= :status where FilePath = :path "; |
183 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
184 |
.SetString("path", absolutePath) |
185 |
.SetEnum("status", newStatus) |
186 |
.ExecuteUpdate(); |
187 |
if (updatedEntities == 0) |
188 |
{ |
189 |
var newState = new FileState |
190 |
{ |
191 |
FilePath = absolutePath, |
192 |
Id = Guid.NewGuid(), |
193 |
FileStatus = newStatus, |
194 |
IsFolder=Directory.Exists(absolutePath) |
195 |
}; |
196 |
newState.CreateAndFlush(); |
197 |
} |
198 |
return null; |
199 |
}, null); |
200 |
|
201 |
} |
202 |
|
203 |
public static void StoreOverlayStatus(string absolutePath, FileOverlayStatus newStatus) |
204 |
{ |
205 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
206 |
throw new ArgumentNullException("absolutePath"); |
207 |
Contract.EndContractBlock(); |
208 |
|
209 |
ExecuteWithRetry((session, instance) => |
210 |
{ |
211 |
const string hqlUpdate = |
212 |
"update FileState set OverlayStatus= :status where FilePath = :path "; |
213 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
214 |
.SetString("path", absolutePath) |
215 |
.SetEnum("status", newStatus) |
216 |
.ExecuteUpdate(); |
217 |
if (updatedEntities == 0) |
218 |
{ |
219 |
var newState = new FileState |
220 |
{ |
221 |
FilePath = absolutePath, |
222 |
Id = Guid.NewGuid(), |
223 |
OverlayStatus = newStatus, |
224 |
IsFolder=Directory.Exists(absolutePath) |
225 |
}; |
226 |
newState.CreateAndFlush(); |
227 |
} |
228 |
return null; |
229 |
}, null); |
230 |
|
231 |
} |
232 |
|
233 |
/* |
234 |
public static void UpdateStatus(string absolutePath, FileStatus fileStatus, FileOverlayStatus overlayStatus) |
235 |
{ |
236 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
237 |
throw new ArgumentNullException("absolutePath"); |
238 |
Contract.EndContractBlock(); |
239 |
|
240 |
ExecuteWithRetry((session, instance) => |
241 |
{ |
242 |
const string hqlUpdate = |
243 |
"update FileState set OverlayStatus= :overlayStatus, FileStatus= :fileStatus where FilePath = :path "; |
244 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
245 |
.SetString("path", absolutePath) |
246 |
.SetEnum("fileStatus", fileStatus) |
247 |
.SetEnum("overlayStatus", overlayStatus) |
248 |
.ExecuteUpdate(); |
249 |
return updatedEntities; |
250 |
}, null); |
251 |
|
252 |
} |
253 |
*/ |
254 |
|
255 |
/* |
256 |
public static void UpdateStatus(string absolutePath, FileStatus fileStatus) |
257 |
{ |
258 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
259 |
throw new ArgumentNullException("absolutePath"); |
260 |
Contract.EndContractBlock(); |
261 |
|
262 |
ExecuteWithRetry((session, instance) => |
263 |
{ |
264 |
const string hqlUpdate = |
265 |
"update FileState set FileStatus= :fileStatus where FilePath = :path "; |
266 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
267 |
.SetString("path", absolutePath) |
268 |
.SetEnum("fileStatus", fileStatus) |
269 |
.ExecuteUpdate(); |
270 |
return updatedEntities; |
271 |
}, null); |
272 |
|
273 |
} |
274 |
|
275 |
*/ |
276 |
public static void RenameState(string oldPath, string newPath) |
277 |
{ |
278 |
if (string.IsNullOrWhiteSpace(oldPath)) |
279 |
throw new ArgumentNullException("oldPath"); |
280 |
Contract.EndContractBlock(); |
281 |
|
282 |
ExecuteWithRetry((session, instance) => |
283 |
{ |
284 |
const string hqlUpdate = |
285 |
"update FileState set FilePath= :newPath where FilePath = :oldPath "; |
286 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
287 |
.SetString("oldPath", oldPath) |
288 |
.SetString("newPath", newPath) |
289 |
.ExecuteUpdate(); |
290 |
return updatedEntities; |
291 |
}, null); |
292 |
|
293 |
} |
294 |
|
295 |
/* public static void UpdateStatus(Guid id, FileStatus fileStatus) |
296 |
{ |
297 |
|
298 |
ExecuteWithRetry((session, instance) => |
299 |
{ |
300 |
const string hqlUpdate = |
301 |
"update FileState set FileStatus= :fileStatus where Id = :id "; |
302 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
303 |
.SetGuid("id", id) |
304 |
.SetEnum("fileStatus", fileStatus) |
305 |
.ExecuteUpdate(); |
306 |
return updatedEntities; |
307 |
}, null); |
308 |
}*/ |
309 |
|
310 |
public static void UpdateChecksum(string absolutePath, string checksum) |
311 |
{ |
312 |
if (string.IsNullOrWhiteSpace(absolutePath)) |
313 |
throw new ArgumentNullException("absolutePath"); |
314 |
Contract.EndContractBlock(); |
315 |
|
316 |
ExecuteWithRetry((session, instance) => |
317 |
{ |
318 |
const string hqlUpdate = "update FileState set Checksum= :checksum where FilePath = :path "; |
319 |
var updatedEntities = session.CreateQuery(hqlUpdate) |
320 |
.SetString("path", absolutePath) |
321 |
.SetString("checksum", checksum) |
322 |
.ExecuteUpdate(); |
323 |
return updatedEntities; |
324 |
}, null); |
325 |
|
326 |
} |
327 |
|
328 |
public static void ChangeRootPath(string oldPath, string newPath) |
329 |
{ |
330 |
if (String.IsNullOrWhiteSpace(oldPath)) |
331 |
throw new ArgumentNullException("oldPath"); |
332 |
if (!Path.IsPathRooted(oldPath)) |
333 |
throw new ArgumentException("oldPath must be an absolute path", "oldPath"); |
334 |
if (string.IsNullOrWhiteSpace(newPath)) |
335 |
throw new ArgumentNullException("newPath"); |
336 |
if (!Path.IsPathRooted(newPath)) |
337 |
throw new ArgumentException("newPath must be an absolute path", "newPath"); |
338 |
Contract.EndContractBlock(); |
339 |
|
340 |
//Ensure the paths end with the same character |
341 |
if (!oldPath.EndsWith("\\")) |
342 |
oldPath = oldPath + "\\"; |
343 |
if (!newPath.EndsWith("\\")) |
344 |
newPath = newPath + "\\"; |
345 |
|
346 |
ExecuteWithRetry((session, instance) => |
347 |
{ |
348 |
const string hqlUpdate = |
349 |
"update FileState set FilePath = replace(FilePath,:oldPath,:newPath) where FilePath like :oldPath || '%' "; |
350 |
var renames = session.CreateQuery(hqlUpdate) |
351 |
.SetString("oldPath", oldPath) |
352 |
.SetString("newPath", newPath) |
353 |
.ExecuteUpdate(); |
354 |
return renames; |
355 |
}, null); |
356 |
} |
357 |
|
358 |
public static Task<FileState> CreateForAsync(string filePath, int blockSize, string algorithm) |
359 |
{ |
360 |
if (blockSize <= 0) |
361 |
throw new ArgumentOutOfRangeException("blockSize"); |
362 |
if (String.IsNullOrWhiteSpace(algorithm)) |
363 |
throw new ArgumentNullException("algorithm"); |
364 |
Contract.EndContractBlock(); |
365 |
|
366 |
|
367 |
var fileState = new FileState |
368 |
{ |
369 |
FilePath = filePath, |
370 |
OverlayStatus = FileOverlayStatus.Unversioned, |
371 |
FileStatus = FileStatus.Created, |
372 |
Id = Guid.NewGuid() |
373 |
}; |
374 |
|
375 |
|
376 |
return fileState.UpdateHashesAsync(blockSize, algorithm); |
377 |
} |
378 |
|
379 |
public async Task<FileState> UpdateHashesAsync(int blockSize, string algorithm) |
380 |
{ |
381 |
if (blockSize <= 0) |
382 |
throw new ArgumentOutOfRangeException("blockSize"); |
383 |
if (String.IsNullOrWhiteSpace(algorithm)) |
384 |
throw new ArgumentNullException("algorithm"); |
385 |
Contract.EndContractBlock(); |
386 |
|
387 |
//Skip updating the hash for folders |
388 |
if (Directory.Exists(FilePath)) |
389 |
return this; |
390 |
|
391 |
var hash = await TaskEx.Run(() => |
392 |
{ |
393 |
var info = new FileInfo(FilePath); |
394 |
return info.CalculateHash(blockSize, algorithm); |
395 |
}); |
396 |
|
397 |
Checksum = hash; |
398 |
|
399 |
return this; |
400 |
} |
401 |
|
402 |
private static void ExecuteWithRetry(NHibernateDelegate call, object state) |
403 |
{ |
404 |
int retries = 3; |
405 |
while (retries > 0) |
406 |
try |
407 |
{ |
408 |
using (new SessionScope()) |
409 |
{ |
410 |
Execute(call, state); |
411 |
return; |
412 |
} |
413 |
} |
414 |
catch (ActiveRecordException ) |
415 |
{ |
416 |
retries--; |
417 |
if (retries <= 0) |
418 |
throw; |
419 |
} |
420 |
} |
421 |
|
422 |
/// <summary> |
423 |
/// Remove all FileState rows from the database whose path |
424 |
/// starts with one of the removed paths |
425 |
/// </summary> |
426 |
/// <param name="removed"></param> |
427 |
public static void RemovePaths(List<string> removed) |
428 |
{ |
429 |
if (removed == null) |
430 |
return; |
431 |
if (removed.Count == 0) |
432 |
return; |
433 |
|
434 |
//Create a disjunction (list of OR statements |
435 |
var disjunction = new Disjunction(); |
436 |
foreach (var path in removed) |
437 |
{ |
438 |
//with the restriction FileState.FilePath like '@path%' |
439 |
disjunction.Add(Restrictions.On<FileState>(s => s.FilePath) |
440 |
.IsLike(path, MatchMode.Start)); |
441 |
} |
442 |
|
443 |
//Generate a query from the disjunction |
444 |
var query=QueryOver.Of<FileState>().Where(disjunction); |
445 |
//Adn retrieveonly the IDs |
446 |
var idQuery = new ProjectionQuery<FileState,Guid>(query.DetachedCriteria, |
447 |
Projections.ProjectionList() |
448 |
.Add(Projections.Id())); |
449 |
|
450 |
var ids=idQuery.Execute(); |
451 |
DeleteAll(ids); |
452 |
|
453 |
} |
454 |
} |
455 |
|
456 |
[ActiveRecord("Tags")] |
457 |
public class FileTag : ActiveRecordLinqBase<FileTag> |
458 |
{ |
459 |
[PrimaryKey] |
460 |
public int Id { get; set; } |
461 |
|
462 |
[Property] |
463 |
public string Name { get; set; } |
464 |
|
465 |
[Property] |
466 |
public string Value { get; set; } |
467 |
|
468 |
[BelongsTo("FileStateId")] |
469 |
public FileState FileState { get; set; } |
470 |
|
471 |
} |
472 |
|
473 |
} |