public virtual void DeleteExpiredGroups(List <IdentityStoreObject> groups)
        {
            LogExtension.EnterMethod(GroupsProcessor.logger, MethodBase.GetCurrentMethod(), new object[0]);
            List <string> groupsToNotify = new List <string>();
            List <IdentityStoreObject> groupsToDelete = new List <IdentityStoreObject>();

            try
            {
                foreach (IdentityStoreObject group in groups)
                {
                    try
                    {
                        if (!this.IsGroup(group))
                        {
                            GroupsProcessor.logger.DebugFormat("DeleteExpiredGroups. Object {0} is not a group.", this.GetAttributeValue(Helper.KnownProviderAttributes.get_Name(), group.get_AttributesBusinessObject()).get_Value() ?? string.Empty);
                            continue;
                        }
                        else if (this.IsSystemGroup(group))
                        {
                            GroupsProcessor.logger.DebugFormat("DeleteExpiredGroups. Object {0} is a system group.", this.GetAttributeValue(Helper.KnownProviderAttributes.get_Name(), group.get_AttributesBusinessObject()).get_Value() ?? string.Empty);
                            continue;
                        }
                        else if (this.IsGroupInExcludedContainer(group))
                        {
                            GroupsProcessor.logger.DebugFormat("DeleteExpiredGroups. Object {0} is in excluded containers.", this.GetAttributeValue(Helper.KnownProviderAttributes.get_Name(), group.get_AttributesBusinessObject()).get_Value() ?? string.Empty);
                            continue;
                        }
                        else if (this.ShouldExpireSecurityGroup(group))
                        {
                            string   expirationDateString = this.GetAttributeValue("XGroupExpirationDate", group.get_AttributesBusinessObject()).get_Value();
                            DateTime expirationDate       = Helper.ParseDateTime(expirationDateString);
                            if (expirationDate.Date == DateTime.MinValue.Date)
                            {
                                continue;
                            }
                            else if (DateTime.Now.Date.Subtract(expirationDate.Date).Days >= Helper.AppConfiguration.get_DeletionDaysAfterExpiry())
                            {
                                this.SetAttributeValue("IMGIsDeleted", "true", group.get_AttributesBusinessObject());
                                string updatedDisplayName = this.GetUpdatedDisplayName(group);
                                group.set_ObjectDisplayName(updatedDisplayName);
                                this.SetAttributeValue(Helper.KnownProviderAttributes.get_DisplayName(), updatedDisplayName, group.get_AttributesBusinessObject());
                                groupsToNotify.Add(group.get_ObjectIdFromIdentityStore());
                                groupsToDelete.Add(group);
                                GroupsProcessor.logger.InfoFormat("Group Deleted: {0}", group.get_ObjectDisplayName());
                            }
                            else
                            {
                                continue;
                            }
                        }
                        else
                        {
                            GroupsProcessor.logger.DebugFormat("DeleteExpiredGroups. Object {0} is a security group.", this.GetAttributeValue(Helper.KnownProviderAttributes.get_Name(), group.get_AttributesBusinessObject()).get_Value() ?? string.Empty);
                            continue;
                        }
                    }
                    catch (Exception exception)
                    {
                        Exception ex = exception;
                        GroupsProcessor.logger.Error(string.Format("An Error occured while performing deletion operation on group: {0} Reason: {1}", this.GetAttributeValue(Helper.KnownProviderAttributes.get_DistinguishedName(), group.get_AttributesBusinessObject()).get_Value() ?? string.Empty, ex.Message), ex);
                    }
                }
                ServicesGroupServiceClient groupServiceClient = new ServicesGroupServiceClient(false);
                if (groupsToDelete.Count > 0)
                {
                    groupsToDelete.ForEach((IdentityStoreObject g) => this.SetAttributeValue("IMGLastSentExpireNotificationDate", DateTime.Now.Date.ToString("yyyy MMMM dd HH:mm:ss"), g.get_AttributesBusinessObject()));
                    groupsToDelete.ForEach((IdentityStoreObject g) => this.SetAttributeValue("IMGIsDeleted", "TRUE", g.get_AttributesBusinessObject()));
                    List <IdentityStoreObject> groupsToUpdate = this.CloneObjectsForUpdate(new List <string>()
                    {
                        "IMGLastSentExpireNotificationDate",
                        "IMGIsDeleted",
                        Helper.KnownProviderAttributes.get_DisplayName()
                    }, groupsToDelete, null);
                    string       compressedString = DataCompressionHelper.CompressObjects <List <IdentityStoreObject> >(groupsToUpdate);
                    ActionResult result           = groupServiceClient.UpdateManyWithCompression(Helper.CurrentTask.get_IdentityStoreId(), compressedString, typeof(IdentityStoreObject).FullName);
                    this.LogResults(result, "DeleteExpiredGroups");
                }
                if (groupsToNotify.Count > 0)
                {
                    ActionResult result = groupServiceClient.SendGlmNotification(Helper.CurrentTask.get_IdentityStoreId(), 29, groupsToNotify);
                    this.LogResults(result, "DeleteExpiredGroups-Notifications");
                }
                LogExtension.ExitMethod(GroupsProcessor.logger, MethodBase.GetCurrentMethod(), new object[0]);
            }
            catch (Exception exception1)
            {
                Exception Ex = exception1;
                LogExtension.LogException(GroupsProcessor.logger, string.Format("An error ocurred while deleting 30 days old expired groups: {0}", Ex.Message), Ex);
            }
        }