public void Search(SearchCriteria criteria, CancellationTokenSource tokenSource)
{
logger.Info(criteria.ToString());
this.criteria = criteria;
this.token = tokenSource.Token;
searchedFileCount = 0;
if (criteria.SearchInResults)
{
// use the filename list from previous search result
filenameList.Clear();
filenameList.AddRange(matchedFilenameList);
}
else
{
// construct new filename list
CreateFilenameList();
}
FileListCompleted?.Invoke(this, new ListFileCompletedEventArgs(filenameList));
matchedFilenameList.Clear();
matchedFileCount = 0;
ParallelOptions options = new ParallelOptions
{
MaxDegreeOfParallelism = criteria.SearchThreads,
CancellationToken = this.token
};
try
{
Parallel.ForEach(filenameList, options, (filename, loopStat) =>
{
options.CancellationToken.ThrowIfCancellationRequested();
SearchInDicomFile(filename);
});
OnSearchComplete?.Invoke(this, new OnSearchCompleteEventArgs {
Reason = Enums.ReasonEnum.Normal
});
}
catch (OperationCanceledException)
{
OnSearchComplete?.Invoke(this, new OnSearchCompleteEventArgs {
Reason = Enums.ReasonEnum.UserCancelled
});
logger.Info("User cancelled the search.");
}
finally
{
tokenSource.Dispose();
}
}
public async Task <ActionResult <List <ResultProxy> > > GetResults(SearchProxy search)
{
try
{
if (search.ExecutedAt == default)
{
search.ExecutedAt = DateTime.Now;
}
// Adds the Search to database, and retrieves it again, to get version with Id generated by the database.
_ = await handler.Add(search);
search = await handler.Find(new SearchProxy()
{
Target = search.Target,
DesiredAmount = search.DesiredAmount,
Term = search.Term,
Path = search.Path,
ExecutedAt = search.ExecutedAt
});
var results = new List <ResultProxy>();
Task <ResultProxy> web = null;
Task <ResultProxy> files = null;
Task <ResultProxy> folders = null;
// Initiats different tasks to search specified areas.
switch (search.Target)
{
case Core.Enums.SearchTarget.All:
web = SearchWeb(search);
files = SearchFiles(search);
folders = SearchFolders(search);
break;
case Core.Enums.SearchTarget.WebAndFiles:
web = SearchWeb(search);
files = SearchFiles(search);
break;
case Core.Enums.SearchTarget.WebAndFolder:
web = SearchWeb(search);
folders = SearchFolders(search);
break;
case Core.Enums.SearchTarget.FilesAndFolders:
files = SearchFiles(search);
folders = SearchFolders(search);
break;
case Core.Enums.SearchTarget.Web:
web = SearchWeb(search);
break;
case Core.Enums.SearchTarget.Files:
files = SearchFiles(search);
break;
case Core.Enums.SearchTarget.Folders:
folders = SearchFolders(search);
break;
default:
break;
}
// Awaits the different tasks, and adds the ResultProxy to database and return list.
// A Check to ensure the tasks have completed succefully, would be an possible improvement
if (web != null)
{
var awaitedWeb = await web;
_ = await handler.Add(awaitedWeb);
results.Add(awaitedWeb);
}
if (files != null)
{
var awaitedFiles = await files;
_ = await handler.Add(awaitedFiles);
results.Add(awaitedFiles);
}
if (folders != null)
{
var awaitedFolders = await folders;
_ = await handler.Add(awaitedFolders);
results.Add(awaitedFolders);
}
OnSearchComplete?.Invoke(search);
return(new OkObjectResult(results));
}
catch (Exception e)
{
throw;
}
}
