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
|
using MediaBrowser.Controller;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.FileOrganization;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Querying;
using System;
using System.Data;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Persistence
{
public class SqliteFileOrganizationRepository : IFileOrganizationRepository
{
private IDbConnection _connection;
private readonly ILogger _logger;
private readonly SemaphoreSlim _writeLock = new SemaphoreSlim(1, 1);
private SqliteShrinkMemoryTimer _shrinkMemoryTimer;
private readonly IServerApplicationPaths _appPaths;
public SqliteFileOrganizationRepository(ILogManager logManager, IServerApplicationPaths appPaths)
{
_appPaths = appPaths;
_logger = logManager.GetLogger(GetType().Name);
}
/// <summary>
/// Opens the connection to the database
/// </summary>
/// <returns>Task.</returns>
public async Task Initialize()
{
var dbFile = Path.Combine(_appPaths.DataPath, "fileorganization.db");
_connection = await SqliteExtensions.ConnectToDb(dbFile, _logger).ConfigureAwait(false);
string[] queries = {
//pragmas
"pragma temp_store = memory",
"pragma shrink_memory"
};
_connection.RunQueries(queries, _logger);
PrepareStatements();
_shrinkMemoryTimer = new SqliteShrinkMemoryTimer(_connection, _writeLock, _logger);
}
private void PrepareStatements()
{
}
public Task SaveResult(FileOrganizationResult result, CancellationToken cancellationToken)
{
return Task.FromResult(true);
}
public QueryResult<FileOrganizationResult> GetResults(FileOrganizationResultQuery query)
{
return new QueryResult<FileOrganizationResult>();
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
private readonly object _disposeLock = new object();
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool dispose)
{
if (dispose)
{
try
{
lock (_disposeLock)
{
if (_shrinkMemoryTimer != null)
{
_shrinkMemoryTimer.Dispose();
_shrinkMemoryTimer = null;
}
if (_connection != null)
{
if (_connection.IsOpen())
{
_connection.Close();
}
_connection.Dispose();
_connection = null;
}
}
}
catch (Exception ex)
{
_logger.ErrorException("Error disposing database", ex);
}
}
}
}
}
|
