/// <summary>
/// Update the library when invoked via the timer
/// </summary>
private void UpdateLibrary()
{
try
{
// get a hook to the DB
IDBClient db = Database.RetrieveClient();
// retrieve the initial number of tracks
int beforeTracks = Database.RetrieveNumberOfTracks(db);
// get the audio library locations
IList <AudioLibraryLocation> locations = Database.RetrieveLibraryLocations(db);
// get the current timestamp, we'll use this in case anything gets modified while this is happening
DateTime beforeUpdate = DateTime.Now;
_log.Info("Starting library update at: " + beforeUpdate.ToLocalTime());
try
{
// recurse through each of the library locations
foreach (AudioLibraryLocation location in locations)
{
if (_log.IsDebugEnabled)
{
_log.Debug("Updating library location: " + location.Path);
}
// initialise the list of directories to process
IList <string> directoriesToProcess = new List <string>();
// start traversing down each directory
ProcessDirectory(directoriesToProcess, location.Path, location.LastWritten);
// if there was any processing needed to be done
if (directoriesToProcess.Count > 0)
{
const int numThreads = 5;
_libraryThreadPool = new FixedThreadPool(5, ThreadPriority.Lowest);
_log.Debug("Created custom thread pool for library with " + numThreads + " threads");
// make all the workers
for (int i = 0; i < directoriesToProcess.Count; i++)
{
var worker = new AudioLibraryWorker();
worker.Directory = directoriesToProcess[i];
// attach it to a worker for the pool
var workerItem = new WorkerItem(worker.WorkerMethod);
// add it to the pool
_libraryThreadPool.QueueWorkerItem(workerItem);
// start the show
_libraryThreadPool.Start();
}
}
// reset the reference to when this update run started
location.LastWritten = beforeUpdate;
// store this updated location back in the DB
Database.UpdateAddLibraryLocation(db, location);
// commit after each location. if something goes wrong, we wont have to redo
db.Commit();
}
// get the number of tracks after
int afterTracks = Database.RetrieveNumberOfTracks(db);
TimeSpan elapsedTime = DateTime.Now - beforeUpdate;
_log.Info("Finished library update at: " + DateTime.Now.ToLocalTime() + ". Took: " +
elapsedTime.TotalSeconds + " seconds");
_log.Info("Imported " + (afterTracks - beforeTracks) + " tracks");
// close the db
db.Close();
}
catch (DatabaseClosedException)
{
_log.Debug("The database has been closed prematurely");
}
}
catch (Db4oException ex)
{
_log.Error("Problem occurred when updating library", ex);
}
finally
{
_libraryUpdateTimer.Start();
}
}
/// <summary>
/// Update the library when invoked via the timer
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void UpdateLibrary()
{
_libraryUpdateTimer.Stop();
try
{
// lower the priority of this thread
Thread.CurrentThread.Priority = ThreadPriority.Lowest;
// get a hook to the DB
IDBClient db = Database.RetrieveClient();
// get the audio library locations
IList <VideoLibraryLocation> locations = Database.RetrieveLibraryLocations(db);
// get the current timestamp, we'll use this in case anything gets modified while this is happening
DateTime beforeUpdate = DateTime.Now;
_log.Info("Starting library update at: " + beforeUpdate.ToLocalTime());
try
{
// recurse through each of the library locations
foreach (VideoLibraryLocation location in locations)
{
if (_log.IsDebugEnabled)
{
_log.Debug("Updating library location: " + location.Path);
}
// // initialise the list of directories to process
// IList<string> directoriesToProcess = new List<string>();
// // start traversing down each directory
// ProcessDirectory(directoriesToProcess, location.Path, location.LastWritten);
// // if there was any processing needed to be done
// if (directoriesToProcess.Count > 0)
// {
// _libraryThreadPool = new FixedThreadPool(5, ThreadPriority.Lowest);
// _log.Debug("Created custom thread pool for library with 5 threads");
// // make all the workers
// for (int i = 0; i < directoriesToProcess.Count; i++)
// {
// if (!_theModule._theCore._keepRunning)
// {
// _libraryThreadPool._keepRunning = false;
// return;
// }
// // create the worker thread
// var worker = new LibraryWorker(_theModule, directoriesToProcess[i]);
// // attach it to a worker for the pool
// var workerItem =
// new WorkerItem(new LibraryWorker.DirectoryWorker(worker.WorkerMethod));
// // add it to the pool
// _libraryThreadPool.QueueWorkerItem(workerItem);
// // start the show
// _libraryThreadPool.Start();
// }
// }
// reset the reference to when this update run started
location.LastWritten = beforeUpdate;
// store this updated location back in the DB
Database.UpdateAddLibraryLocation(db, location);
// commit after each location. if something goes wrong, we wont have to redo
db.Commit();
}
TimeSpan elapsedTime = DateTime.Now - beforeUpdate;
_log.Info("Finished library update at: " + DateTime.Now.ToLocalTime() + ". Took: " +
elapsedTime.TotalSeconds + " seconds");
// close the db
db.Close();
}
catch (DatabaseClosedException)
{
_log.Debug("The database has been closed prematurely");
_libraryThreadPool._keepRunning = false;
}
}
catch (Db4oException ex)
{
_log.Error("Problem occurred when updating library", ex);
}
finally
{
_libraryUpdateTimer.Start();
}
}