public async Task Start(SearchRequest sr, SearchCallback <SearchStatus> statusCallback)
{
this.Callback = statusCallback;
this.Request = sr;
this.Request.FilterListChanged += OnFilterListChanged;
this.Request.SortingChanged += OnSortOrderChanged;
FakeHits = null;
Pici.Log.debug(typeof(SearchSession), "searching:" + sr.SearchString);
ID = await PP2_Init();
if (ID > 0)
{
//run query if successfully initiated session
try
{
Callback.ThrowIfCancellationRequested();
//start session ping loop
Task pingTask = StartPingLoop();
//run request
await RunQuery(String.Format("searching {0}", sr.SearchString), true, true);
}
catch (OperationCanceledException)
{
throw;
}
finally
{
Pici.Log.info(typeof(SearchSession), "running initial search finished");
}
}
}
private async Task <int> PP2_Init()
{
try
{
// create session
Stream stream = await UrlHelper.GetInitUrl().GetStreamAsync();
PazPar2Init pInit =
await
Async.DeserializeXml <PazPar2Init>(serializerPazPar2Init, stream,
Pazpar2Settings.LOG_HTTP_RESPONSES);
Callback.ThrowIfCancellationRequested();
return(pInit.Session);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
Pici.Log.error(typeof(SearchSession), "pazpar2 init error", ex);
throw;
}
}
