string GetPrimaryFilterExpression(OrchestrationStateQueryFilter filter, bool isJumpStartTable)
{
string basicPrimaryFilter;
if (!isJumpStartTable)
{
basicPrimaryFilter = string.Format(CultureInfo.InvariantCulture, AzureTableConstants.PrimaryFilterTemplate);
}
else
{
basicPrimaryFilter = string.Format(
CultureInfo.InvariantCulture,
AzureTableConstants.PrimaryTimeRangeTemplate,
AzureTableOrchestrationJumpStartEntity.GetPartitionKey(DateTime.UtcNow.AddDays(-1)),
AzureTableOrchestrationJumpStartEntity.GetPartitionKey(DateTime.UtcNow));
}
string filterExpression = string.Empty;
if (filter != null)
{
if (filter is OrchestrationStateInstanceFilter)
{
var typedFilter = filter as OrchestrationStateInstanceFilter;
if (typedFilter.StartsWith)
{
filterExpression = string.Format(CultureInfo.InvariantCulture,
AzureTableConstants.PrimaryInstanceQueryRangeTemplate,
typedFilter.InstanceId, ComputeNextKeyInRange(typedFilter.InstanceId));
}
else
{
if (string.IsNullOrEmpty(typedFilter.ExecutionId))
{
filterExpression = string.Format(CultureInfo.InvariantCulture,
AzureTableConstants.PrimaryInstanceQueryRangeTemplate,
typedFilter.InstanceId, ComputeNextKeyInRange(typedFilter.InstanceId));
}
else
{
filterExpression = string.Format(CultureInfo.InvariantCulture,
AzureTableConstants.PrimaryInstanceQueryExactTemplate,
typedFilter.InstanceId,
typedFilter.ExecutionId);
}
}
}
else
{
// TODO : for now we don't have indexes for anything other than the
// instance id so all filters are 'secondary' filters
filterExpression = GetSecondaryFilterExpression(filter);
}
}
return(basicPrimaryFilter + (string.IsNullOrEmpty(filterExpression) ?
string.Empty : " and " + filterExpression));
}
internal override IEnumerable <ITableEntity> BuildDenormalizedEntities()
{
var entity1 = new AzureTableOrchestrationJumpStartEntity(OrchestrationJumpStartInstanceEntity);
entity1.TaskTimeStamp = TaskTimeStamp;
entity1.PartitionKey = GetPartitionKey(entity1.State.CreatedTime);
entity1.RowKey = AzureTableConstants.InstanceStateExactRowPrefix +
AzureTableConstants.JoinDelimiter + State.OrchestrationInstance.InstanceId +
AzureTableConstants.JoinDelimiter + State.OrchestrationInstance.ExecutionId;
return(new [] { entity1 });
}
TableQuery <AzureTableOrchestrationJumpStartEntity> CreateJumpStartQuery(DateTime startTime, DateTime endTime, int count)
{
string filterExpression = string.Format(
CultureInfo.InvariantCulture,
AzureTableConstants.PrimaryTimeRangeTemplate,
AzureTableOrchestrationJumpStartEntity.GetPartitionKey(startTime),
AzureTableOrchestrationJumpStartEntity.GetPartitionKey(endTime));
TableQuery <AzureTableOrchestrationJumpStartEntity> query =
new TableQuery <AzureTableOrchestrationJumpStartEntity>().Where(filterExpression);
if (count != -1)
{
query.TakeCount = count;
}
return(query);
}
