public SearchResult GetResults(SearchRequest searchRequest)
{
if (string.IsNullOrEmpty(searchRequest.Query))
{
return(new SearchResult());
}
if (searchRequest.SystemIds == null || searchRequest.SystemIds.Count() == 0)
{
return(new SearchResult());
}
var cachedResults = _searchResultPositionRepository.Get(
x => searchRequest.SystemIds.Contains(x.SearchConnectorId) &&
(x.Query == searchRequest.Query.ToLower() ||
x.Description.ToLower().Contains(searchRequest.Query.ToLower()))
).OrderByDescending(x => x.Date);
if (cachedResults.Count() > 0)
{
var connectorId = cachedResults.First().SearchConnectorId;
var positions = cachedResults.Where(x => x.SearchConnectorId == connectorId).Take(10);
SearchResult searchResult = new SearchResult();
searchResult.SearchPositions = positions.ToList();
searchResult.SearchSystem = connectorId;
return(searchResult);
}
var connectors = _searchConnectorRepository.Get(x => searchRequest.SystemIds.Contains(x.Id)).ToList();
int connectorsCount = connectors.Count;
SearchResult[] results = new SearchResult[connectorsCount];
SearchResult finalResult = new SearchResult();
finalResult.SearchSystem = 1;
List <Task> tasks = new List <Task>();
for (int i = 0; i < connectorsCount; i++)
{
results[i] = new SearchResult();
int currentIndex = i;
var searchTask = Task.Run(() => GetResultPosition(connectors[currentIndex], searchRequest.Query, out results[currentIndex]));
tasks.Add(searchTask);
}
while (tasks.Count() > 0)
{
Task.WaitAny(tasks.ToArray(), 3000);
if (results.Where(x => x.SearchPositions.Count > 0).Count() > 0)
{
finalResult = results.Where(x => x.SearchPositions.Count > 0).First();
break;
}
List <int> removeTasks = new List <int>();
for (int i = 0; i < tasks.Count; i++)
{
if (tasks[i].Status != TaskStatus.Running)
{
removeTasks.Add(i);
}
}
//Ни один таск не завершился => таймаут
if (removeTasks.Count == 0)
{
break;
}
removeTasks.Reverse(); //Если удалять таски то с конца, чтобы не нарушить очередность
foreach (int number in removeTasks)
{
tasks.Remove(tasks.ElementAt(number));
}
}
if (finalResult.SearchPositions.Count > 0)
{
finalResult.SearchPositions = finalResult.SearchPositions.Take(10).ToList();
foreach (var searchPosition in finalResult.SearchPositions)
{
searchPosition.Query = searchRequest.Query.ToLower();
searchPosition.SearchConnectorId = finalResult.SearchSystem;
searchPosition.Date = DateTime.UtcNow;
_searchResultPositionRepository.Insert(searchPosition);
}
}
return(finalResult);
}
