private void LoadFullHeader()
{
if (_fullHeader != null)
{
return; //We've already got it without the pixel data.
}
var args = new LoadDicomFileArgs(this.StudyInstanceUid, this.SeriesInstanceUid, this.SopInstanceUid, true, false);
_fullHeader = _dicomFileLoader.LoadDicomFile(args);
_metaInfo = null;
}
private DicomFile TryClientRetrieveImageHeader(out Exception lastRetrieveException)
{
// retry parameters
const int retryTimeout = 1500;
int retryDelay = 50;
int retryCounter = 0;
CodeClock timeoutClock = new CodeClock();
timeoutClock.Start();
lastRetrieveException = null;
while (true)
{
try
{
if (retryCounter > 0)
{
Platform.Log(LogLevel.Info, "Retrying retrieve headers for Sop '{0}' (Attempt #{1})", this.SopInstanceUid, retryCounter);
}
return(_loader.LoadDicomFile(new LoadDicomFileArgs(this.StudyInstanceUid, this.SeriesInstanceUid, this.SopInstanceUid, true, false)));
}
catch (Exception ex)
{
lastRetrieveException = ex;
timeoutClock.Stop();
if (timeoutClock.Seconds * 1000 >= retryTimeout)
{
// log an alert that we are aborting (exception trace at debug level only)
int elapsed = (int)(1000 * timeoutClock.Seconds);
Platform.Log(LogLevel.Warn, "Failed to retrieve headers for Sop '{0}'; Aborting after {1} attempts in {2} ms", this.SopInstanceUid, retryCounter, elapsed);
Platform.Log(LogLevel.Debug, ex, "[GetHeaders Fail-Abort] Sop: {0}, Retry Attempts: {1}, Elapsed: {2} ms", this.SopInstanceUid, retryCounter, elapsed);
break;
}
timeoutClock.Start();
retryCounter++;
// log the retry (exception trace at debug level only)
Platform.Log(LogLevel.Warn, "Failed to retrieve headers for Sop '{0}'; Retrying in {1} ms", this.SopInstanceUid, retryDelay);
Platform.Log(LogLevel.Debug, ex, "[GetHeaders Fail-Retry] Sop: {0}, Retry in: {1} ms", this.SopInstanceUid, retryDelay);
MemoryManager.Collect(retryDelay);
retryDelay *= 2;
}
}
return(null);
}
private ISopDicomFileLoader ConvertLoader(IDicomFileLoader loader)
{
return(new SopDicomFileLoader(loader.CanLoadCompleteHeader, loader.CanLoadPixelData, loader.CanLoadFramePixelData,
args => loader.LoadDicomFile(new LoadDicomFileArgs(StudyInstanceUid, SeriesInstanceUid, SopInstanceUid, args.ForceCompleteHeader, args.IncludePixelData)),
args => loader.LoadFramePixelData(new LoadFramePixelDataArgs(StudyInstanceUid, SeriesInstanceUid, SopInstanceUid, args.FrameNumber))));
}
private ISopDicomFileLoader ConvertLoader(IDicomFileLoader loader)
{
return new SopDicomFileLoader(loader.CanLoadCompleteHeader, loader.CanLoadPixelData, loader.CanLoadFramePixelData,
args => loader.LoadDicomFile(new LoadDicomFileArgs(StudyInstanceUid, SeriesInstanceUid, SopInstanceUid, args.ForceCompleteHeader, args.IncludePixelData)),
args => loader.LoadFramePixelData(new LoadFramePixelDataArgs(StudyInstanceUid, SeriesInstanceUid, SopInstanceUid, args.FrameNumber)));
}
