/// <summary>
/// Given the search request, build the response.
/// </summary>
/// <param name="search"></param>
/// <returns></returns>
private async Task <ISearchResponse> BuildResponse(SearchRequest search)
{
// we want the stopwatch to include the getting of the transaction as well.
var stopwatch = new Stopwatch();
stopwatch.Start();
var log = new StringBuilder();
var token = CancellationToken.None;
var transaction = await Persister.BeginRead(token).ConfigureAwait(false);
log.AppendLine($" > Got transaction Time Elapsed: {stopwatch.Elapsed:g}");
try
{
// search the words.
var words = await GetWords(search, token).ConfigureAwait(false);
log.AppendLine($" > Got Words Time Elapsed: {stopwatch.Elapsed:g}");
// get the percent complete
var status = await GetStatus(token).ConfigureAwait(false);
log.AppendLine($" > Got Status Time Elapsed: {stopwatch.Elapsed:g}");
// we are done here.
Persister.Commit(transaction);
log.AppendLine($" > Committed Time Elapsed: {stopwatch.Elapsed:g}");
// log it.
stopwatch.Stop();
log.Append($"Completed search for '{search.What}' found {words.Count} result(s) (Time Elapsed: {stopwatch.Elapsed:g})");
Logger.Information(log.ToString());
// we can now build the response model.
return(new SearchResponse(words,
stopwatch.ElapsedMilliseconds,
status));
}
catch (Exception e)
{
Persister.Rollback(transaction);
Logger.Exception(e);
}
// return nothing
return(new SearchResponse());
}