public async Task <ActionResult> QueryResult(QueryInfo queryInfo)
{
if (queryInfo == null)
{
return(BadRequest());
}
ViewData[nameof(SearchInfo)] = queryInfo;
object results;
try
{
/*** validation ***/
queryInfo.Validate();
/*** query preparation ***/
SparqlRemoteEndpoint endpoint = SearchPreparing.CreateEndpoint(queryInfo.Endpoints[0], queryInfo.Timeout, queryInfo.DefaultGraph);
SparqlQuery query = QueryParsing.ParseQuery(queryInfo.QueryString);
/*** query processing ***/
results = await QueryProcessing.ProcessQuery(query, endpoint);
//ViewData["ExecutionTime"] = query.QueryExecutionTime;
}
catch (BrowserException e)
{
return(View("QueryResultError", e.Message));
}
catch (Exception)
{
//TODO: better text
return(View("QueryResultError", "Unknown error..."));
}
/*** result processing ***/
if (results is SparqlResultSet)
{
return(View("QueryResultSet", (SparqlResultSet)results));
}
else if (results is IGraph)
{
return(View("QueryResultGraph", (IGraph)results));
}
else if (results is AsyncError)
{
return(View("QueryResultError", ErrorProcessing.ProcessAsyncError((AsyncError)results)));
}
else
{
//TODO: better text
return(View("QueryResultError", "Unknown error..."));
}
}
