protected override void InitStrategy()
{
var settings = new WebStationStreamingSettings();
_strategy = new WeightedWindowPrefetchingStrategy(
new StreamingCorePrefetchingStrategy(), _loaderName, SR.DescriptionWebStationPrefetchingStrategy)
{
Enabled = settings.RetrieveConcurrency > 0,
RetrievalThreadConcurrency = Math.Max(settings.RetrieveConcurrency, 1),
DecompressionThreadConcurrency = Math.Max(settings.DecompressConcurrency, 1),
FrameLookAheadCount = settings.ImageWindow >= 0 ? (int?)settings.ImageWindow : null,
SelectedImageBoxWeight = Math.Max(settings.SelectedWeighting, 1),
UnselectedImageBoxWeight = Math.Max(settings.UnselectedWeighting, 0)
};
PrefetchingStrategy = _strategy;
if (Platform.IsLogLevelEnabled(LogLevel.Debug))
{
StringBuilder message = new StringBuilder();
message.AppendLine(String.Format("Streaming Prefetch Strategy: {0}", _strategy.Name));
message.AppendLine(String.Format("\tEnabled: {0}", _strategy.Enabled ? "Yes" : "No"));
message.AppendLine(String.Format("\tRetrieval Thread Concurrency: {0}", _strategy.RetrievalThreadConcurrency));
message.AppendLine(String.Format("\tDecompression Thread Concurrency: {0}", _strategy.DecompressionThreadConcurrency));
message.AppendLine(String.Format("\tFrame Lookahead Count: {0}", _strategy.FrameLookAheadCount));
message.AppendLine(String.Format("\tSelected Imagebox Weight: {0}", _strategy.SelectedImageBoxWeight));
message.AppendLine(String.Format("\tUnselected Imagebox Weight: {0}", _strategy.UnselectedImageBoxWeight));
Platform.Log(LogLevel.Debug, message.ToString());
}
}
protected virtual void InitStrategy()
{
PrefetchingStrategy = new WeightedWindowPrefetchingStrategy(new StreamingCorePrefetchingStrategy(), _loaderName, SR.DescriptionPrefetchingStrategy)
{
Enabled = StreamingSettings.Default.RetrieveConcurrency > 0,
RetrievalThreadConcurrency = Math.Max(StreamingSettings.Default.RetrieveConcurrency, 1),
DecompressionThreadConcurrency = Math.Max(StreamingSettings.Default.DecompressConcurrency, 1),
FrameLookAheadCount = StreamingSettings.Default.ImageWindow >= 0 ? (int?) StreamingSettings.Default.ImageWindow : null,
SelectedImageBoxWeight = Math.Max(StreamingSettings.Default.SelectedWeighting, 1),
UnselectedImageBoxWeight = Math.Max(StreamingSettings.Default.UnselectedWeighting, 0)
};
}
public LocalStoreStudyLoader() : base("DICOM_LOCAL")
{
int? frameLookAhead = PreLoadingSettings.Default.FrameLookAheadCount;
if (PreLoadingSettings.Default.LoadAllFrames)
frameLookAhead = null;
var coreStrategy = new SimpleCorePrefetchingStrategy(frame => frame.ParentImageSop.DataSource is LocalStoreSopDataSource);
PrefetchingStrategy = new WeightedWindowPrefetchingStrategy(coreStrategy, "DICOM_LOCAL", "Simple prefetcing strategy for local images.")
{
Enabled = PreLoadingSettings.Default.Enabled,
RetrievalThreadConcurrency = PreLoadingSettings.Default.Concurrency,
FrameLookAheadCount = frameLookAhead,
SelectedImageBoxWeight = PreLoadingSettings.Default.SelectedImageBoxWeight,
UnselectedImageBoxWeight = PreLoadingSettings.Default.UnselectedImageBoxWeight,
DecompressionThreadConcurrency = 0
};
}
