public void LoadDocumentFromMetadata(LibraryDB.LibraryItem library_item, Dictionary <string, byte[]> /* can be null */ library_items_annotations_cache, bool notify_changed_pdf_document)
{
try
{
PDFDocument pdf_document = PDFDocument.LoadFromMetaData(this, library_item.data, library_items_annotations_cache);
Utilities.LockPerfTimer l1_clk = Utilities.LockPerfChecker.Start();
lock (pdf_documents_lock)
{
l1_clk.LockPerfTimerStop();
pdf_documents[pdf_document.Fingerprint] = pdf_document;
}
if (!pdf_document.Deleted)
{
TagManager.Instance.ProcessDocument(pdf_document);
ReadingStageManager.Instance.ProcessDocument(pdf_document);
}
if (notify_changed_pdf_document)
{
SignalThatDocumentsHaveChanged(pdf_document);
}
else
{
SignalThatDocumentsHaveChanged(null);
}
}
catch (Exception ex)
{
Logging.Warn(ex, "Couldn't load document from {0}", library_item.fingerprint);
}
}
internal void NotifyLibraryThatDocumentHasChangedExternally(string fingerprint)
{
Logging.Info("Library has been notified that {0} has changed", fingerprint);
try
{
LibraryDB.LibraryItem library_item = library_db.GetLibraryItem(fingerprint, PDFDocumentFileLocations.METADATA);
LoadDocumentFromMetadata(library_item, null, true);
}
catch (Exception ex)
{
Logging.Warn(ex, "We were told that something had changed, but could not find it on looking...");
}
}
void BuildFromDocumentRepository()
{
try
{
library_is_loaded = false;
Logging.Debug("+Build library from repository");
List <LibraryDB.LibraryItem> library_items = this.library_db.GetLibraryItems(null, PDFDocumentFileLocations.METADATA);
// Get the annotations cache
Dictionary <string, byte[]> library_items_annotations_cache = this.library_db.GetLibraryItemsAsCache(PDFDocumentFileLocations.ANNOTATIONS);
Logging.Info("Loading {0} files from repository at {1}", library_items.Count, LIBRARY_DOCUMENTS_BASE_PATH);
for (int i = 0; i < library_items.Count; ++i)
{
LibraryDB.LibraryItem library_item = library_items[i];
// Track progress of how long this is taking to load
if (0 == i % 250)
{
StatusManager.Instance.UpdateStatus("LibraryInitialLoad", "Loading your library", i, library_items.Count);
}
try
{
LoadDocumentFromMetadata(library_item, library_items_annotations_cache, false);
}
catch (Exception ex)
{
Logging.Error(ex, "There was a problem loading document {0}", library_item);
}
}
StatusManager.Instance.ClearStatus("LibraryInitialLoad");
Logging.Debug("-Build library from repository");
}
catch (Exception ex)
{
Logging.Error(ex, "There was a problem while building the document library");
}
finally
{
library_is_loaded = true;
}
}
// NOTE: this function is executed ASYNCHRONOUSLY.
//
// Once completed, an event will be fired to
// help the main application update any relevant views.
private void BuildFromDocumentRepository()
{
try
{
LibraryIsLoaded = false;
// abort work when this library instance has already been Dispose()d in the main UI thread:
if (LibraryIsKilled)
{
Logging.Info("Building the library has been SKIPPED/ABORTED as the library {0} has already been killed.", WebLibraryDetail.Id);
return;
}
Stopwatch clk = Stopwatch.StartNew();
long prev_clk = 0;
long elapsed = 0;
Logging.Debug特("+Build library from repository");
List <LibraryDB.LibraryItem> library_items = library_db.GetLibraryItems(null, PDFDocumentFileLocations.METADATA);
// abort work when this library instance has already been Dispose()d in the main UI thread:
if (LibraryIsKilled)
{
Logging.Info("Building the library has been SKIPPED/ABORTED as the library {0} has already been killed.", WebLibraryDetail.Id);
return;
}
elapsed = clk.ElapsedMilliseconds;
Logging.Debug特(":Build library '{2}' from repository -- time spent: {0} ms on fetching {1} records from SQLite DB.", elapsed, library_items.Count, WebLibraryDetail.DescriptiveTitle);
prev_clk = elapsed;
// Get the annotations cache
Dictionary <string, byte[]> library_items_annotations_cache = library_db.GetLibraryItemsAsCache(PDFDocumentFileLocations.ANNOTATIONS);
// abort work when this library instance has already been Dispose()d in the main UI thread:
if (LibraryIsKilled)
{
Logging.Info("Building the library has been SKIPPED/ABORTED as the library {0} has already been killed.", WebLibraryDetail.Id);
return;
}
elapsed = clk.ElapsedMilliseconds;
Logging.Debug特(":Build library '{2}' from repository -- time spent: {0} ms on fetching annotation cache for {1} records.", elapsed - prev_clk, library_items.Count, WebLibraryDetail.DescriptiveTitle);
prev_clk = elapsed;
Logging.Info("Library '{2}': Loading {0} files from repository at {1}", library_items.Count, LIBRARY_DOCUMENTS_BASE_PATH, WebLibraryDetail.DescriptiveTitle);
for (int i = 0; i < library_items.Count; ++i)
{
LibraryDB.LibraryItem library_item = library_items[i];
// Track progress of how long this is taking to load
elapsed = clk.ElapsedMilliseconds;
if (prev_clk + 1000 <= elapsed)
{
StatusManager.Instance.UpdateStatus("LibraryInitialLoad", String.Format("Loading your library '{0}'", WebLibraryDetail.DescriptiveTitle), i, library_items.Count);
Logging.Info("Library '{2}': Loaded {0}/{1} documents", i, library_items.Count, WebLibraryDetail.DescriptiveTitle);
prev_clk = elapsed;
System.Threading.Thread.Yield();
}
if (LibraryIsKilled)
{
// abort work when this library instance has already been Dispose()d in the main UI thread:
Logging.Info("Building the library has been SKIPPED/ABORTED as the library {0} has already been killed.", WebLibraryDetail.Id);
break;
}
try
{
LoadDocumentFromMetadata(library_item, library_items_annotations_cache, false);
}
catch (Exception ex)
{
Logging.Error(ex, "Library '{1}': There was a problem loading document {0}", library_item, WebLibraryDetail.DescriptiveTitle);
}
}
StatusManager.Instance.ClearStatus("LibraryInitialLoad");
Logging.Debug特("-Build library '{2}' from repository -- time spent: {0} ms on {1} library records.", clk.ElapsedMilliseconds, library_items.Count, WebLibraryDetail.DescriptiveTitle);
}
catch (Exception ex)
{
if (LibraryIsKilled)
{
Logging.Warn(ex, "There was a failure while building the *KILLED* document library instance for library {0} ({1})", WebLibraryDetail.DescriptiveTitle, WebLibraryDetail.Id);
}
else
{
Logging.Error(ex, "There was a problem while building the document library {0} ({1})", WebLibraryDetail.DescriptiveTitle, WebLibraryDetail.Id);
}
}
finally
{
LibraryIsLoaded = true;
if (!LibraryIsKilled)
{
// fire the event ASYNC
OnLibraryLoaded?.BeginInvoke(this, null, null);
}
}
}
