/// <summary>
/// Purges the history of orchestrations and entities based on a set of filters.
/// </summary>
/// <remarks>
/// This method will purge at most 1000 instances. The caller can purge more than this by calling the method
/// multiple times, checking for a non-zero return value after each call.
/// </remarks>
/// <param name="createdTimeFrom">The minimum creation time filter. Only instances created after this date are purged.</param>
/// <param name="createdTimeTo">The maximum creation time filter. Only instances created before this date are purged.</param>
/// <param name="runtimeStatus">The set of orchestration status values to filter orchestrations by.</param>
/// <returns>Returns the number of purged instances.</returns>
public override async Task <int> PurgeHistoryByFilters(DateTime createdTimeFrom, DateTime?createdTimeTo, IEnumerable <OrchestrationStatus> runtimeStatus)
{
var purgeFilter = new PurgeInstanceFilter(createdTimeFrom, createdTimeTo, runtimeStatus);
var purgeResult = await this.service.PurgeInstanceStateAsync(purgeFilter);
return(purgeResult.DeletedInstanceCount);
}
public override async Task <PurgeResult> PurgeInstanceStateAsync(PurgeInstanceFilter purgeInstanceFilter)
{
var purgeQuery = new SqlOrchestrationQuery
{
PageSize = 1000,
CreatedTimeFrom = purgeInstanceFilter.CreatedTimeFrom,
FetchInput = false,
FetchOutput = false,
};
if (purgeInstanceFilter.CreatedTimeTo != null)
{
purgeQuery.CreatedTimeTo = purgeInstanceFilter.CreatedTimeTo.Value;
}
if (purgeInstanceFilter.RuntimeStatus?.Any() == true)
{
purgeQuery.StatusFilter = new HashSet <OrchestrationStatus>(purgeInstanceFilter.RuntimeStatus);
}
IReadOnlyCollection <OrchestrationState> results = await this.GetManyOrchestrationsAsync(purgeQuery, CancellationToken.None);
IEnumerable <string> instanceIds = results.Select(r => r.OrchestrationInstance.InstanceId);
int purgedInstanceCount = await this.PurgeOrchestrationHistoryAsync(instanceIds);
return(new PurgeResult(purgedInstanceCount));
}
public abstract Task <PurgeResult> PurgeInstanceStateAsync(PurgeInstanceFilter purgeInstanceFilter);