2013-03-04 06:43:06 +01:00
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using MediaBrowser.Common.Configuration;
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2013-02-24 22:53:54 +01:00
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using MediaBrowser.Common.ScheduledTasks;
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2013-10-31 15:03:23 +01:00
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using MediaBrowser.Model.Logging;
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2013-02-21 02:33:05 +01:00
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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2015-10-04 06:23:11 +02:00
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using CommonIO;
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2013-02-21 02:33:05 +01:00
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2013-02-24 22:53:54 +01:00
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namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
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2013-02-21 02:33:05 +01:00
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{
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/// <summary>
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/// Deletes old cache files
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/// </summary>
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2013-12-26 15:20:45 +01:00
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public class DeleteCacheFileTask : IScheduledTask, IConfigurableScheduledTask
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2013-02-21 02:33:05 +01:00
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{
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2013-02-26 04:43:04 +01:00
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/// <summary>
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2013-03-04 06:43:06 +01:00
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/// Gets or sets the application paths.
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2013-02-26 04:43:04 +01:00
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/// </summary>
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2013-03-04 06:43:06 +01:00
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/// <value>The application paths.</value>
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private IApplicationPaths ApplicationPaths { get; set; }
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2013-02-26 04:43:04 +01:00
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2013-09-19 21:41:05 +02:00
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private readonly ILogger _logger;
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2013-10-31 15:03:23 +01:00
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private readonly IFileSystem _fileSystem;
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2014-05-07 04:28:19 +02:00
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2013-02-21 02:33:05 +01:00
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/// <summary>
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2013-02-23 08:57:11 +01:00
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/// Initializes a new instance of the <see cref="DeleteCacheFileTask" /> class.
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/// </summary>
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2013-10-31 15:03:23 +01:00
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public DeleteCacheFileTask(IApplicationPaths appPaths, ILogger logger, IFileSystem fileSystem)
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2013-02-23 08:57:11 +01:00
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{
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2013-03-04 06:43:06 +01:00
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ApplicationPaths = appPaths;
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_logger = logger;
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2013-10-31 15:03:23 +01:00
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_fileSystem = fileSystem;
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2013-02-23 08:57:11 +01:00
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}
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/// <summary>
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2013-02-21 02:33:05 +01:00
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/// Creates the triggers that define when the task will run
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/// </summary>
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/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
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public IEnumerable<ITaskTrigger> GetDefaultTriggers()
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2013-02-21 02:33:05 +01:00
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{
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2013-08-28 04:31:39 +02:00
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// Until we can vary these default triggers per server and MBT, we need something that makes sense for both
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return new ITaskTrigger[] {
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// Every so often
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new IntervalTrigger { Interval = TimeSpan.FromHours(24)}
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};
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2013-02-21 02:33:05 +01:00
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}
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/// <summary>
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/// Returns the task to be executed
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/// </summary>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="progress">The progress.</param>
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/// <returns>Task.</returns>
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public Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
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2013-02-21 02:33:05 +01:00
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{
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var minDateModified = DateTime.UtcNow.AddDays(-30);
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2013-02-21 02:33:05 +01:00
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2013-09-19 21:41:05 +02:00
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try
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{
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2013-03-04 06:43:06 +01:00
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DeleteCacheFilesFromDirectory(cancellationToken, ApplicationPaths.CachePath, minDateModified, progress);
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2013-09-19 21:41:05 +02:00
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}
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catch (DirectoryNotFoundException)
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{
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// No biggie here. Nothing to delete
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}
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progress.Report(90);
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2016-07-23 07:03:16 +02:00
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minDateModified = DateTime.UtcNow.AddDays(-1);
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2014-05-07 04:28:19 +02:00
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2013-09-19 21:41:05 +02:00
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try
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{
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DeleteCacheFilesFromDirectory(cancellationToken, ApplicationPaths.TempDirectory, minDateModified, progress);
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}
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catch (DirectoryNotFoundException)
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{
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// No biggie here. Nothing to delete
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}
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return Task.FromResult(true);
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2013-02-21 02:33:05 +01:00
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}
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/// <summary>
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/// Deletes the cache files from directory with a last write time less than a given date
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/// </summary>
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/// <param name="cancellationToken">The task cancellation token.</param>
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/// <param name="directory">The directory.</param>
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/// <param name="minDateModified">The min date modified.</param>
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/// <param name="progress">The progress.</param>
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2013-02-22 05:23:06 +01:00
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private void DeleteCacheFilesFromDirectory(CancellationToken cancellationToken, string directory, DateTime minDateModified, IProgress<double> progress)
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{
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var filesToDelete = _fileSystem.GetFiles(directory, true)
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.Where(f => _fileSystem.GetLastWriteTimeUtc(f) < minDateModified)
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.ToList();
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var index = 0;
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foreach (var file in filesToDelete)
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{
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double percent = index;
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percent /= filesToDelete.Count;
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2013-02-22 05:23:06 +01:00
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progress.Report(100 * percent);
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cancellationToken.ThrowIfCancellationRequested();
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2013-09-19 21:41:05 +02:00
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DeleteFile(file.FullName);
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index++;
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}
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2015-03-08 06:37:48 +01:00
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DeleteEmptyFolders(directory);
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2013-02-22 05:23:06 +01:00
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progress.Report(100);
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2013-02-21 02:33:05 +01:00
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}
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2015-09-13 23:32:02 +02:00
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private void DeleteEmptyFolders(string parent)
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{
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foreach (var directory in _fileSystem.GetDirectoryPaths(parent))
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{
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DeleteEmptyFolders(directory);
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if (!_fileSystem.GetFileSystemEntryPaths(directory).Any())
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{
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2015-11-20 18:55:38 +01:00
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try
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{
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_fileSystem.DeleteDirectory(directory, false);
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}
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2015-11-24 19:46:23 +01:00
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catch (UnauthorizedAccessException ex)
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{
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_logger.ErrorException("Error deleting directory {0}", ex, directory);
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}
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2015-11-20 18:55:38 +01:00
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catch (IOException ex)
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{
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_logger.ErrorException("Error deleting directory {0}", ex, directory);
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}
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2015-03-08 06:37:48 +01:00
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}
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}
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}
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2013-09-19 21:41:05 +02:00
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private void DeleteFile(string path)
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{
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try
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{
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_fileSystem.DeleteFile(path);
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}
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2015-11-24 19:46:23 +01:00
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catch (UnauthorizedAccessException ex)
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{
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_logger.ErrorException("Error deleting file {0}", ex, path);
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}
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2013-09-19 21:41:05 +02:00
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catch (IOException ex)
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{
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_logger.ErrorException("Error deleting file {0}", ex, path);
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}
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}
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2013-02-21 02:33:05 +01:00
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/// <summary>
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/// Gets the name of the task
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/// </summary>
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/// <value>The name.</value>
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public string Name
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{
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get { return "Cache file cleanup"; }
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}
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/// <summary>
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/// Gets the description.
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/// </summary>
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/// <value>The description.</value>
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public string Description
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{
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get { return "Deletes cache files no longer needed by the system"; }
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}
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/// <summary>
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/// Gets the category.
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/// </summary>
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/// <value>The category.</value>
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public string Category
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{
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get
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{
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return "Maintenance";
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}
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}
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2013-12-26 15:20:45 +01:00
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/// <summary>
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/// Gets a value indicating whether this instance is hidden.
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/// </summary>
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/// <value><c>true</c> if this instance is hidden; otherwise, <c>false</c>.</value>
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public bool IsHidden
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{
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get { return true; }
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}
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2014-01-19 07:36:21 +01:00
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public bool IsEnabled
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{
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get { return true; }
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}
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2013-02-21 02:33:05 +01:00
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}
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}
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