/// <summary>
/// Perform the validation on the parameters of this "Get League Summary" query and, if all OK, mark it
/// as allowed to continue
/// </summary>
/// <param name="queryId">
/// Unique identifier of the query event stream for this "Get League Summary" query
/// </param>
/// <param name="log">
/// If set, output progress to this trace writer
/// </param>
private static async Task <bool> ValidateGetLeagueSummaryQuery(string queryId,
ILogger log)
{
const string QUERY_NAME = @"get-league-summary";
Guid queryGuid;
if (Guid.TryParse(queryId, out queryGuid))
{
// Get the current state of the query...
Projection getQueryState = new Projection(@"Query",
QUERY_NAME,
queryGuid.ToString(),
nameof(Query_Summary_Projection));
if (null != getQueryState)
{
#region Logging
if (null != log)
{
log.LogDebug($"Projection processor created in ValidateGetLeagueSummaryQuery");
}
#endregion
// Run the query summary projection
Query_Summary_Projection qryProjection =
new Query_Summary_Projection(log);
await getQueryState.Process(qryProjection);
if ((qryProjection.CurrentSequenceNumber > 0) || (qryProjection.ProjectionValuesChanged()))
{
// Process the query state as is now...
#region Logging
if (null != log)
{
log.LogDebug($"Query { qryProjection.QueryName } projection run for {queryGuid} in ValidateGetLeagueSummaryQuery");
}
#endregion
if (qryProjection.CurrentState == Query_Summary_Projection.QueryState.Completed)
{
// No need to validate a completed query
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryGuid} is complete so no need to validate in ValidateGetLeagueSummaryQuery");
}
#endregion
return(true);
}
if (qryProjection.CurrentState == Query_Summary_Projection.QueryState.Invalid)
{
// No need to validate an already invalid query
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryGuid} is already marked as invalid so no need to validate in ValidateGetLeagueSummaryQuery");
}
#endregion
return(false);
}
if (qryProjection.CurrentState == Query_Summary_Projection.QueryState.Validated)
{
// No need to validate an already validated query
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryGuid} is already validated so no need to validate in ValidateGetLeagueSummaryQuery");
}
#endregion
return(true);
}
// Validations - 1: Check league name is not empty
if (qryProjection.ParameterIsSet(nameof(Get_League_Summary_Definition.League_Name)))
{
string leagueNameParam = qryProjection.GetParameter <string>(nameof(Get_League_Summary_Definition.League_Name));
if (string.IsNullOrWhiteSpace(leagueNameParam))
{
await QueryLogRecord.LogQueryValidationError(queryGuid, QUERY_NAME, true, "League name may not be blank");
#region Logging
if (null != log)
{
log.LogWarning($"Query {QUERY_NAME} :: {queryGuid} has a blank league name in ValidateGetLeagueSummaryQuery");
}
#endregion
return(false);
}
else
{
// any additional validation could go here (?)..
return(true);
}
}
else
{
// Parameter is mandatory but may not be set yet so leave the query as is
#region Logging
if (null != log)
{
log.LogWarning($"Query { qryProjection.QueryName } has no value specified for the parameter {nameof(Get_League_Summary_Definition.League_Name)} in ValidateGetLeagueSummaryQuery");
}
#endregion
return(false);
}
}
}
}
return(false);
}
/// <summary>
/// Add projection requests for the projections that need to be run in order to get the data
/// for this Get League Summary query
/// </summary>
/// <param name="queryId">
/// Unique identifier of the query
/// </param>
/// <param name="log">
/// Optional tracing output
/// </param>
private static async Task RequestProjectionsGetLeagueSummaryQuery(
string queryName,
string queryId,
ILogger log)
{
Guid queryGuid;
if (Guid.TryParse(queryId, out queryGuid))
{
// Get the current state of the query...
Projection getQueryState = new Projection(@"Query",
queryName,
queryGuid.ToString(),
nameof(Query_Summary_Projection));
if (null != getQueryState)
{
#region Logging
if (null != log)
{
log.LogInformation($"Projection processor created to get query state from RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
// Run the query summary projection
Query_Summary_Projection qryProjection =
new Query_Summary_Projection(log);
await getQueryState.Process(qryProjection);
if ((qryProjection.CurrentSequenceNumber > 0) || (qryProjection.ProjectionValuesChanged()))
{
// Process the query state as is now...
#region Logging
if (null != log)
{
log.LogDebug($"Query { qryProjection.QueryName } projection run for {queryGuid } in RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
// Ignore queries in an invalid state...
if ((qryProjection.CurrentState == Query_Summary_Projection.QueryState.Completed) ||
(qryProjection.CurrentState == Query_Summary_Projection.QueryState.Invalid))
{
// No need to validate a completed query
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryGuid} state is {qryProjection.CurrentState} so no projections requested in RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
return;
}
// Get the league parameter
if (qryProjection.ParameterIsSet(nameof(Get_League_Summary_Definition.League_Name)))
{
string leagueNameParam = qryProjection.GetParameter <string>(nameof(Get_League_Summary_Definition.League_Name));
if (string.IsNullOrWhiteSpace(leagueNameParam))
{
#region Logging
if (null != log)
{
log.LogError($"Query {queryName } :: {queryGuid} has a blank league name in RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
}
else
{
// Find out what projections have been already requested
Query_Projections_Projection qryProjectionsRequested = new Query_Projections_Projection();
await getQueryState.Process(qryProjectionsRequested);
if ((qryProjectionsRequested.CurrentSequenceNumber > 0) || (qryProjectionsRequested.ProjectionValuesChanged()))
{
// Process the query state as is now...
if ((qryProjectionsRequested.UnprocessedRequests.Count == 0) && (qryProjectionsRequested.ProcessedRequests.Count == 0))
{
// No projections have been added to this so add the "get league summary" request
await QueryLogRecord.RequestProjection(queryGuid,
qryProjection.QueryName,
nameof(Leagues.League.projection.League_Summary_Information),
"Leagues",
"League",
leagueNameParam,
null);
}
else
{
if (qryProjectionsRequested.UnprocessedRequests.Count > 0)
{
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryName} projection in progress for {queryGuid } in RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
}
if (qryProjectionsRequested.ProcessedRequests.Count > 0)
{
#region Logging
if (null != log)
{
log.LogWarning($"Query {queryName} projection already processed for {queryGuid } in RequestProjectionsGetLeagueSummaryQuery");
}
#endregion
}
}
}
}
}
}
}
}
}