/[xmltv_parser]/trunk/GBPVRProgramDatabaseFixer/SQLLITE.cs
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Contents of /trunk/GBPVRProgramDatabaseFixer/SQLLITE.cs

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Revision 163 - (show annotations) (download)
Fri Mar 15 16:53:40 2013 UTC (7 years, 6 months ago) by william
File size: 21107 byte(s)
+ filter GBPVR Programs to match the date-range of the XMLTV Programs list

1 //#define SQLLITE_CONNECTION_TEST
2 using System;
3 using System.Collections.Generic;
4 using System.Linq;
5 using System.Text;
6 using System.Data.SQLite;
7 using System.Diagnostics;
8 using Enterprise.Logging;
9 using libxmltv;
10 namespace GBPVRProgramDatabaseFixer
11 {
12 public interface ISQLLITE
13 {
14 List<SQLLITE.IPROGRAMME> Programs { get; }
15 List<SQLLITE.IRECORDING_SCHEDULE> Recordings { get; }
16 List<SQLLITE.ICHANNEL> Channels { get; }
17 IDateTimeRange GetProgramsDateRange(List<SQLLITE.IPROGRAMME> programs);
18 List<SQLLITE.IPROGRAMME> FilterProgramsByDateRange(List<SQLLITE.IPROGRAMME> programs, IDateTimeRange range);
19
20 }
21 public class SQLLITE : ISQLLITE
22 {
23 public static ISQLLITE Create(string database, EventHandler<EventArgs> OnInstanceCreated)
24 {
25 return new SQLLITE(database, OnInstanceCreated);
26 }
27
28 #region DATABASE DEFINITIONS
29
30 public interface ICHANNEL
31 {
32 Int64 oid { get; }
33 String name { get; }
34 String channelID { get; }
35 Int64 channel_number { get; }
36 String favourite_channel { get; }
37 String display_name { get; }
38 }
39 private class CHANNEL : ICHANNEL
40 {
41 public CHANNEL()
42 {
43 BaseDatabaseDefinition<CHANNEL>.CreateDefault(this);
44 }
45 //public RECORDING_SCHEDULE(SQLiteDataReader r, int index) { BaseDatabaseDefinition<RECORDING_SCHEDULE>.Create(this, r, index); }
46
47 public static void Create(ref CHANNEL instance, SQLiteDataReader r, int index)
48 {
49 BaseDatabaseDefinition<CHANNEL>.Create(ref instance, r, index);
50 }
51 #region ICHANNEL members
52 public Int64 oid { get; set; }
53 public String name { get; set; }
54 public String channelID { get; set; }
55 public Int64 channel_number { get; set; }
56 public String favourite_channel { get; set; }
57 public String display_name { get; set; }
58 #endregion
59 }
60 public interface IRECORDING_SCHEDULE
61 {
62 Int64 oid { get; }
63 Int64 programme_oid { get; }
64 Int64 capture_source_oid { get; }
65 Int16 status { get; }
66 String filename { get; }
67 Int64 recording_type { get; }
68 Int64 recording_group { get; }
69 DateTime manual_start_time { get; }
70 DateTime manual_end_time { get; }
71 Int64 manual_channel_oid { get; }
72 Int64 quality_level { get; }
73 Int64 pre_pad_minutes { get; }
74 Int64 post_pad_minutes { get;}
75 Int32 priority { get; }
76 String conversion_profile { get; }
77 }
78
79 private static class BaseDatabaseDefinition<T>
80 {
81 public static void CreateDefault(T instance)
82 {
83 try
84 {
85 Type t = typeof(T);
86 var props = t.GetProperties();
87 foreach (var prop in props)
88 {
89 Type prop_type = prop.PropertyType;
90 object field_value = null;
91 try
92 {
93 if (prop_type == typeof(string))
94 {
95 field_value = string.Empty;
96 }
97 else
98 {
99 field_value = Activator.CreateInstance(prop_type);
100 }
101 }
102 catch (Exception ex)
103 {
104 throw ex;
105 }
106 prop.SetValue(instance, field_value, null);
107 }
108 }
109 catch (Exception ex)
110 {
111 throw ex;
112 }
113 }
114 public static void Create(ref T instance, SQLiteDataReader r, int index)
115 {
116 string field_name = r.GetName(index);
117 Type field_type = r.GetFieldType(index);
118 object field_value = r.GetValue(index);
119 //gLog.Verbose.Debug.WriteLine("Name: '{0}' Type: '{1}' Value: '{2}'", field_name, field_type.Name, field_value == null ? "null" : field_value.ToString());
120
121 Type t = typeof(T);
122 var props = t.GetProperties();
123 foreach (var prop in props)
124 {
125 if (prop.Name.ToLower() == field_name.ToLower())
126 {
127 if (prop.PropertyType == field_type)
128 {
129 Type db_type = field_value.GetType();
130 try
131 {
132 if (db_type == typeof(System.DBNull))
133 {
134 prop.SetValue(instance, null, null);
135 }
136 else
137 {
138 prop.SetValue(instance, field_value, null);
139 }
140
141 }
142 catch (Exception ex)
143 {
144 throw ex;
145 }
146 }
147 else
148 {
149 gLog.Verbose.Debug.WriteLine("Found Property: {0} but there was a type mismatch. Property Type: '{1}' Expected: '{2}'", prop.Name, prop.PropertyType.Name, field_type.Name);
150 throw new InvalidOperationException(string.Format("Found Property: {0} but there was a type mismatch. Property Type: '{1}' Expected: '{2}'", prop.Name, prop.PropertyType.Name, field_type.Name));
151 }
152 }
153 }
154
155 }
156 }
157
158 private class RECORDING_SCHEDULE : IRECORDING_SCHEDULE
159 {
160 public RECORDING_SCHEDULE()
161 {
162 BaseDatabaseDefinition<RECORDING_SCHEDULE>.CreateDefault(this);
163 }
164 //public RECORDING_SCHEDULE(SQLiteDataReader r, int index) { BaseDatabaseDefinition<RECORDING_SCHEDULE>.Create(this, r, index); }
165
166 public static void Create(ref RECORDING_SCHEDULE instance, SQLiteDataReader r, int index)
167 {
168 BaseDatabaseDefinition<RECORDING_SCHEDULE>.Create(ref instance, r, index);
169 }
170
171 #region IRECORDING_SCHEDULE members
172 public Int64 oid { get; set;}
173 public Int64 programme_oid { get; set;}
174 public Int64 capture_source_oid { get; set;}
175 public Int16 status { get; set; }
176 public String filename { get; set; }
177 public Int64 recording_type { get;set; }
178 public Int64 recording_group { get; set;}
179 public DateTime manual_start_time { get; set;}
180 public DateTime manual_end_time { get; set; }
181 public Int64 manual_channel_oid { get; set; }
182 public Int64 quality_level { get; set; }
183 public Int64 pre_pad_minutes { get; set; }
184 public Int64 post_pad_minutes { get; set; }
185 public Int32 priority { get; set; }
186 public String conversion_profile { get; set; }
187 #endregion
188 }
189
190 public interface IPROGRAMME
191 {
192 Int64 oid { get; }
193 String name { get; }
194 String sub_title { get; }
195 String description { get; }
196 DateTime start_time { get; }
197 DateTime end_time { get; }
198 Int64 channel_oid { get; }
199 String unique_identifier { get; }
200 String rating { get; }
201 }
202 private class PROGRAMME : IPROGRAMME
203 {
204 public PROGRAMME()
205 {
206 BaseDatabaseDefinition<PROGRAMME>.CreateDefault(this);
207 }
208 //public PROGRAMME(SQLiteDataReader r, int index) : base(r, index) { }
209 public static void Create(ref PROGRAMME instance, SQLiteDataReader r, int index)
210 {
211 BaseDatabaseDefinition<PROGRAMME>.Create(ref instance, r, index);
212 }
213 #region IPROGRAMME members
214 public Int64 oid { get; set; }
215 public String name { get; set; }
216 public String sub_title { get; set; }
217 public String description { get; set; }
218 public DateTime start_time { get; set; }
219 public DateTime end_time { get; set; }
220 public Int64 channel_oid { get; set; }
221 public String unique_identifier { get; set; }
222 public String rating { get; set; }
223 #endregion
224 }
225 #endregion
226 private static class TABLES
227 {
228 public const string RECORDING_SCHEDULE = "RECORDING_SCHEDULE";
229 public const string PROGRAMME = "PROGRAMME";
230 public const string CHANNEL = "CHANNEL";
231 }
232
233 //public SQLLite() { }
234 protected SQLLITE(string database, EventHandler<EventArgs> OnInstanceCreated)
235 {
236 this.OnInstanceCreated = OnInstanceCreated;
237 //CreateConnection(database);
238 this.Database = database;
239 if (!CreateDatabaseBackup())
240 {
241 gLog.Error.WriteLine("Failed to backup database.");
242 return;
243 }
244 ConnectionTest();
245 ReadChannelData();
246 ReadRecodringScheduleData();
247 ReadProgrammeData();
248 OnCreatedInstance(this, new EventArgs());
249 }
250
251 [NonSerialized]
252 private EventHandler<EventArgs> _OnInstanceCreated;
253 private EventHandler<EventArgs> OnInstanceCreated { get { return _OnInstanceCreated; } set { _OnInstanceCreated = value; } }
254
255 private void OnCreatedInstance(object sender, EventArgs e)
256 {
257 if (OnInstanceCreated != null) { OnInstanceCreated.Invoke(sender, e); }
258 }
259
260 private string Database;
261 #region ISQLLITE members
262 public List<IPROGRAMME> Programs { get; private set; }
263 public List<IRECORDING_SCHEDULE> Recordings { get; private set; }
264 public List<ICHANNEL> Channels { get; private set; }
265
266 public IDateTimeRange GetProgramsDateRange(List<SQLLITE.IPROGRAMME> programs)
267 {
268 var list = new List<IPROGRAMME>(programs.ToArray());
269 DateTime first = new DateTime();
270 DateTime last = new DateTime();
271 first = list.OrderBy(s => s.start_time).ToList().First().start_time;
272 last = list.OrderBy(s => s.start_time).ToList().Last().start_time;
273 gLog.Info.WriteLine("\tFirst: {0} = ({1})", first.ToString("yyyy/MM/dd HH:mm:ss.fffffff"), first.ToDateTimeString());
274 gLog.Info.WriteLine("\tLast: {0} = ({1})", last.ToString("yyyy/MM/dd HH:mm:ss.fffffff"), last.ToDateTimeString());
275 var range = DateTimeRange.Create(first, last);
276 return range;
277 }
278
279 public List<SQLLITE.IPROGRAMME> FilterProgramsByDateRange(List<SQLLITE.IPROGRAMME> programs, IDateTimeRange range)
280 {
281 List<SQLLITE.IPROGRAMME> list = new List<IPROGRAMME>(programs.ToArray());
282 list = list.OrderBy(s => s.start_time).ToList();
283 List<SQLLITE.IPROGRAMME> list2 = new List<IPROGRAMME>();
284 if (range == null)
285 {
286 gLog.Warn.WriteLine("The DateTimeRange passed in is null...returning the original program list");
287 return list;
288 }
289 //gLog.Warn.WriteLine("FilterProgramsByDateRange has not been implemented");
290
291 foreach (var program in list)
292 {
293 if (program.start_time >= range.Start &&
294 program.start_time <= range.End)
295 {
296 list2.Add(program);
297 }
298 }
299 list2 = list2.OrderBy(s => s.channel_oid).ThenBy(s => s.start_time).ToList();
300 return list2;
301 }
302 #endregion
303
304
305 private string CreateConnectionString()
306 {
307 string connection_string = string.Format("Data Source={0}", this.Database);
308 return connection_string;
309 }
310
311 private SQLiteConnection CreateConnection() { SQLiteConnection connection = new SQLiteConnection(CreateConnectionString()); return connection; }
312
313 [Conditional("SQLLITE_CONNECTION_TEST")]
314 private void ConnectionTest()
315 {
316 try
317 {
318 using (SQLiteConnection con = CreateConnection())
319 {
320 con.Open();
321 string command_text = string.Format("select * from {0};", TABLES.CHANNEL);
322 gLog.Verbose.Debug.WriteLine("Executing Command: '{0}'", command_text);
323 using (SQLiteCommand cmd = new SQLiteCommand(command_text, con))
324 {
325 using (SQLiteDataReader r = cmd.ExecuteReader())
326 {
327 if (!r.HasRows)
328 {
329 gLog.Warn.WriteLine("Query: '{0}' returned no rows.", cmd.CommandText);
330 }
331 else
332 {
333 while (r.Read())
334 {
335 for (int i = 0; i < r.FieldCount; i++)
336 {
337 string field_name = r.GetName(i);
338 Type field_type = r.GetFieldType(i);
339 object field_value = r.GetValue(i);
340 gLog.Verbose.Debug.WriteLine("Name: '{0}' Type: '{1}' Value: '{2}'", field_name, field_type.Name, field_value == null ? "null" : field_value.ToString());
341 }
342 break;
343 }
344 }
345 }
346 }
347 con.Clone();
348 }
349 OnCreatedInstance(this, new EventArgs());
350 }
351 catch (Exception ex)
352 {
353 gLog.Error.WriteLine(ex.ToString());
354 }
355 }
356
357
358 private bool CreateDatabaseBackup()
359 {
360 try
361 {
362 string backup_file = string.Format("{0}.{1}", this.Database, DateTime.Now.ToString("yyyyMMddHHmmss"));
363 gLog.Info.WriteLine("Creating Database backup...");
364 gLog.Info.WriteLine("\tSource: {0}", this.Database);
365 gLog.Info.WriteLine("\tDestination: {0}", backup_file);
366
367 System.IO.File.Copy(this.Database, backup_file);
368 return true;
369 }
370 catch (Exception ex)
371 {
372 gLog.Error.WriteLine(ex.ToString());
373 return false;
374 }
375 }
376 private void ReadChannelData()
377 {
378 try
379 {
380 List<ICHANNEL> channels = new List<ICHANNEL>();
381 using (SQLiteConnection con = CreateConnection())
382 {
383 con.Open();
384 string command_text = string.Format("select * from {0};", TABLES.CHANNEL);
385 gLog.Verbose.Debug.WriteLine("Executing Command: '{0}'", command_text);
386 using (SQLiteCommand cmd = new SQLiteCommand(command_text, con))
387 {
388 using (SQLiteDataReader r = cmd.ExecuteReader())
389 {
390 if (!r.HasRows)
391 {
392 gLog.Warn.WriteLine("Query: '{0}' returned no rows.", cmd.CommandText);
393 }
394 else
395 {
396 while (r.Read())
397 {
398 CHANNEL channel = new CHANNEL();
399 for (int i = 0; i < r.FieldCount; i++)
400 {
401 CHANNEL.Create(ref channel, r, i);
402 }
403 channels.Add(channel);
404 }
405 }
406 }
407 }
408 con.Clone();
409 }
410 this.Channels = channels;
411 }
412 catch (Exception ex)
413 {
414 gLog.Error.WriteLine(ex.ToString());
415 }
416 }
417 private void ReadProgrammeData()
418 {
419 try
420 {
421 List<IPROGRAMME> programs = new List<IPROGRAMME>();
422 using (SQLiteConnection con = CreateConnection())
423 {
424 con.Open();
425 string command_text = string.Format("select * from {0};", TABLES.PROGRAMME);
426 gLog.Verbose.Debug.WriteLine("Executing Command: '{0}'", command_text);
427 using (SQLiteCommand cmd = new SQLiteCommand(command_text, con))
428 {
429 using (SQLiteDataReader r = cmd.ExecuteReader())
430 {
431 if (!r.HasRows)
432 {
433 gLog.Warn.WriteLine("Query: '{0}' returned no rows.", cmd.CommandText);
434 }
435 else
436 {
437 while (r.Read())
438 {
439 PROGRAMME program = new PROGRAMME();
440 for (int i = 0; i < r.FieldCount; i++)
441 {
442 PROGRAMME.Create(ref program, r, i);
443 }
444 programs.Add(program);
445 }
446 }
447 }
448 }
449 con.Clone();
450 }
451 this.Programs = programs;
452 }
453 catch (Exception ex)
454 {
455 gLog.Error.WriteLine(ex.ToString());
456 }
457 }
458 private void ReadRecodringScheduleData()
459 {
460 try
461 {
462 List<IRECORDING_SCHEDULE> recordings = new List<IRECORDING_SCHEDULE>();
463 using (SQLiteConnection con = CreateConnection())
464 {
465 con.Open();
466 string command_text = string.Format("select * from {0};", TABLES.RECORDING_SCHEDULE);
467 gLog.Verbose.Debug.WriteLine("Executing Command: '{0}'", command_text);
468 using (SQLiteCommand cmd = new SQLiteCommand(command_text, con))
469 {
470 using (SQLiteDataReader r = cmd.ExecuteReader())
471 {
472 if (!r.HasRows)
473 {
474 gLog.Warn.WriteLine("Query: '{0}' returned no rows.", cmd.CommandText);
475 }
476 else
477 {
478 while (r.Read())
479 {
480 RECORDING_SCHEDULE recording = new RECORDING_SCHEDULE();
481 for (int i = 0; i < r.FieldCount; i++)
482 {
483 RECORDING_SCHEDULE.Create(ref recording, r, i);
484 }
485 recordings.Add(recording);
486 }
487 }
488 }
489 }
490 con.Clone();
491 }
492 this.Recordings = recordings;
493 }
494 catch (Exception ex)
495 {
496 gLog.Error.WriteLine(ex.ToString());
497 }
498 }
499
500 }
501 }

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