private void PurgeObjects(IModelPurgingRule purgingRule, CancellationToken token)
{
try{
Tracing.Tracer.LogVerboseText($"Purging {purgingRule}");
var objectsCount = 0;
if (Application != null)
{
using (var objectSpace = Application.CreateObjectSpace()){
StoreExecutionTime(purgingRule, objectSpace);
var criteriaOperator = objectSpace.ParseCriteria(purgingRule.Criteria);
var objects = objectSpace.GetObjects(purgingRule.TypeInfo.Type, criteriaOperator);
objectSpace.SetTopReturnedObjectsCount(objects, purgingRule.ChunkSize);
while (objects.Count > 0)
{
token.ThrowIfCancellationRequested();
objectsCount += objects.Count;
objectSpace.Delete(objects);
objectSpace.CommitChanges();
objectSpace.ReloadCollection(objects);
}
}
}
Tracing.Tracer.LogVerboseText($"Purged {purgingRule}-{objectsCount}");
}
catch (TaskCanceledException) {
}
catch (Exception e) {
Tracing.Tracer.LogError(e);
}
}
private static void StoreExecutionTime(IModelPurgingRule purgingRule, IObjectSpace objectSpace)
{
var ruleId = purgingRule.GetParent <IModelClass>().Id() + ((ModelNode)purgingRule).Id;
var ruleScheduleStorage = objectSpace.GetObjectsQuery <RuleInfoObject>().FirstOrDefault(storage =>
storage.RuleScheduleType == RuleScheduleType.Purging && storage.RuleId == ruleId) ?? objectSpace.CreateObject <RuleInfoObject>();
ruleScheduleStorage.RuleScheduleType = RuleScheduleType.Purging;
ruleScheduleStorage.RuleId = ((ModelNode)purgingRule).Id;
ruleScheduleStorage.Executed = DateTime.Now;
objectSpace.CommitChanges();
}
