public SearchFileNamesResult SearchFileNames(SearchParams searchParams)
{
var matchFunction = SearchPreProcessParams <FileName>(searchParams, MatchFileName, MatchFileRelativePath);
if (matchFunction == null)
{
return(SearchFileNamesResult.Empty);
}
// taskCancellation is used to make sure we cancel previous tasks as fast
// as possible to avoid using too many CPU resources if the caller keeps
// asking us to search for things. Note that this assumes the caller is
// only interested in the result of the *last* query, while the previous
// queries will throw an OperationCanceled exception.
_taskCancellation.CancelAll();
var matches = _currentFileDatabase.FileNames
.AsParallel()
// We need the line below because of "Take" (.net 4.0 PLinq limitation)
.WithExecutionMode(ParallelExecutionMode.ForceParallelism)
.WithCancellation(_taskCancellation.GetNewToken())
.Where(item => matchFunction(item))
.Take(searchParams.MaxResults)
.ToList();
return(new SearchFileNamesResult {
FileNames = matches,
TotalCount = _currentFileDatabase.FileNames.Count
});
}
public SearchFilePathsResult SearchFilePaths(SearchParams searchParams)
{
// taskCancellation is used to make sure we cancel previous tasks as fast
// as possible to avoid using too many CPU resources if the caller keeps
// asking us to search for things. Note that this assumes the caller is
// only interested in the result of the *last* query, while the previous
// queries will throw an OperationCanceled exception.
_taskCancellation.CancelAll();
var preProcessResult = PreProcessFileSystemNameSearch <FileName>(
searchParams,
MatchFileName,
MatchFileRelativePath);
if (preProcessResult == null)
{
return(SearchFilePathsResult.Empty);
}
using (preProcessResult) {
var searchedFileCount = 0;
var matches = _currentFileDatabase.FileNames
.AsParallel()
// We need the line below because of "Take" (.net 4.0 PLinq
// limitation)
.WithExecutionMode(ParallelExecutionMode.ForceParallelism)
.WithCancellation(_taskCancellation.GetNewToken())
.Where(
item => {
if (!searchParams.IncludeSymLinks)
{
if (_currentFileDatabase.IsContainedInSymLink(item))
{
return(false);
}
}
Interlocked.Increment(ref searchedFileCount);
return(preProcessResult.Matcher(item));
})
.Take(searchParams.MaxResults)
.ToList();
return(new SearchFilePathsResult {
FileNames = matches,
TotalCount = searchedFileCount
});
}
}
private void SearchFilesPaths(string searchPattern, bool immediate)
{
var processedSearchPattern = PreproccessFilePathSearchString(searchPattern);
// Cancel all previously running tasks
_taskCancellation.CancelAll();
var cancellationToken = _taskCancellation.GetNewToken();
var id = Interlocked.Increment(ref _operationSequenceId);
var progressId = string.Format("{0}-{1}", OperationsIds.SearchFilePaths, id);
var sw = new Stopwatch();
var request = new DispatchThreadServerRequest {
// Note: Having a single ID for all searches ensures previous search
// requests are superseeded.
Id = "MetaSearch",
Request = new SearchFilePathsRequest {
SearchParams = new SearchParams {
SearchString = processedSearchPattern,
MaxResults = 200, // TM_TODO
MatchCase = false,
MatchWholeWord = false,
IncludeSymLinks = true,
UseRe2Engine = true,
Regex = false,
}
},
Delay = TimeSpan.FromMilliseconds(immediate ? 0 : GlobalSettings.AutoSearchDelayMsec), OnThreadPoolSend = () => { sw.Start(); }, OnThreadPoolReceive = () => { sw.Stop(); }, OnDispatchThreadSuccess = typedResponse => {
if (cancellationToken.IsCancellationRequested)
{
return;
}
var response = ((SearchFilePathsResponse)typedResponse);
var msg = string.Format("Found {0:n0} path(s) among {1:n0} ({2:0.00} seconds) matching pattern \"{3}\"",
response.HitCount,
response.TotalCount,
sw.Elapsed.TotalSeconds,
processedSearchPattern);
var viewModel = CreateSearchFilePathsResult(response.SearchResult, msg, "", true);
ViewModel.UpdateFileList(viewModel);
_control.UpdateSelection();
}, OnDispatchThreadError = errorResponse => {
if (cancellationToken.IsCancellationRequested)
{
return;
}
}
};
_dispatchThreadServerRequestExecutor.Post(request);
}
private void SearchWorker(SearchWorkerParams workerParams)
{
// Cancel all previously running tasks
_taskCancellation.CancelAll();
var cancellationToken = _taskCancellation.GetNewToken();
var id = Interlocked.Increment(ref _operationSequenceId);
var progressId = string.Format("{0}-{1}", workerParams.OperationName, id);
var sw = new Stopwatch();
var request = new DispatchThreadServerRequest {
// Note: Having a single ID for all searches ensures previous search
// requests are superseeded.
Id = "MetaSearch",
Request = workerParams.TypedRequest,
Delay = workerParams.Delay,
OnThreadPoolSend = () => {
sw.Start();
_progressBarTracker.Start(progressId, workerParams.HintText);
},
OnThreadPoolReceive = () => {
sw.Stop();
_progressBarTracker.Stop(progressId);
},
OnDispatchThreadSuccess = typedResponse => {
if (cancellationToken.IsCancellationRequested)
{
return;
}
workerParams.ProcessResponse(typedResponse, sw);
},
OnDispatchThreadError = errorResponse => {
if (cancellationToken.IsCancellationRequested)
{
return;
}
workerParams.ProcessError(errorResponse, sw);
}
};
_dispatchThreadServerRequestExecutor.Post(request);
}
