| public static GetLastWriteTimeUtc ( string path ) : System.DateTime | ||
| path | string | |
| return | System.DateTime | |
private void OnIndexModifierFinishedIndexOperation(object sender, FinishedIndexOperationEventArgs e)
{
if (e.Operation.Action == IndexOperation.OptimizeIndex)
{
this._indexModifier.FinishedIndexOperation -= OnIndexModifierFinishedIndexOperation;
this._settings.LastIndexOptimization = Directory.GetLastWriteTimeUtc(this._settings.IndexPath);
}
}
public static DateTime GetLastWriteTimeUtc(string path)
{
if (_provider == null)
{
return(Directory.GetLastWriteTimeUtc(path));
}
return(_provider.GetLastWriteTimeUtc(path));
}
/// <summary>
/// Gets a specific directory's last write time, in UTC.
/// </summary>
/// <param name="path">The path of the directory.</param>
/// <returns>
/// A <see cref="DateTime" /> in UTC.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="path" /> is <see langword="null" /> (<see langword="Nothing" />
/// in Visual Basic).
/// </exception>
public DateTime GetLastWriteTime(string path)
{
_ = Requires.NotNullOrWhiteSpace(
path,
nameof(path));
return(FSDir.GetLastWriteTimeUtc(path));
}
public static System.DateTime GetLastWriteTimeUtc(string path) => MSIOD.GetLastWriteTimeUtc(path);
public override DateTimeOffset GetLastWriteTime() => new DateTimeOffset(D.GetLastWriteTimeUtc(this.FullName), TimeSpan.Zero);
/// <summary>
/// Checks the index. If it does not exists, this will start
/// creating a new index. This process is recoverable/restartable and
/// can/should be called each time the Search is expected to be used.
/// </summary>
/// <param name="force">if set to <c>true</c> a re-indexing of all
/// items is started.</param>
public void CheckIndex(bool force)
{
if (!UseIndex)
{
return;
}
bool restartIndexing = false;
bool fileBasedIndex = this._settings.IndexPath != null &&
Directory.Exists(this._settings.IndexPath);
string indexingStateFile = this.RestartIndexingStateFile;
DateTime indexModifiedAt = DateTime.MinValue;
if (fileBasedIndex)
{
indexModifiedAt = Directory.GetLastWriteTimeUtc(this._settings.IndexPath);
bool indexStateFileExists = (indexingStateFile != null && File.Exists(indexingStateFile));
// if the index have to be (re-)created, we don't want to rely on old restart infos:
if ((force || startIndexAll) && indexStateFileExists)
{
FileHelper.Delete(indexingStateFile);
}
// restart indexing: read state and go on with the next non-indexed feed
restartIndexing = (!startIndexAll && indexStateFileExists);
}
else
{
startIndexAll = true;
}
if (force || restartIndexing || startIndexAll)
{
IDictionary restartInfo = null;
DictionaryEntry lastIndexed = new DictionaryEntry();
if (restartIndexing)
{
// read indexState into restartInfo (persisted feed urls/id, that are yet indexed)
restartInfo = ReadIndexingRestartStateFileContent(indexingStateFile, out lastIndexed);
}
if (restartInfo == null)
{
restartInfo = new HybridDictionary();
}
if (startIndexAll)
{
this._indexModifier.CreateIndex();
}
LuceneIndexer indexer = GetIndexer();
indexer.IndexingFinished += OnIndexingFinished;
indexer.IndexingProgress += OnIndexingProgress;
indexer.IndexAll(restartInfo, lastIndexed);
}
else if (fileBasedIndex)
{
// check, if we have to call OptimizeIndex():
DateTime lastIndexModification = this._settings.LastIndexOptimization;
int compareResult = indexModifiedAt.CompareTo(lastIndexModification);
// indexModifiedAt is greater than lastIndexModification, hence index was modified:
if (compareResult > 0)
{
// attach event to get optimize index finished notification:
this._indexModifier.FinishedIndexOperation += OnIndexModifierFinishedIndexOperation;
this.IndexOptimize();
}
else if (compareResult != 0)
{
// correct the bad persisted entry:
this._settings.LastIndexOptimization = Directory.GetLastWriteTimeUtc(this._settings.IndexPath);
}
}
}
public override DateTime GetLastWriteTimeUtc(string path)
{
return(Directory.GetLastWriteTimeUtc(path));
}