/// <summary>
/// Get the alerts changed after last sync
/// </summary>
/// <param name="since"></param>
/// <returns></returns>
internal Dictionary <int, Alert> GetAlertsChangesSince(DateTime since)
{
Dictionary <int, Alert> modifiedAlerts = new Dictionary <int, Alert>();
try
{
if (since < alertList.Created || since < DateTime.UtcNow.AddDays(-60))
{
//By default, the change log retains data for 60 days. You can configure the retention period by setting the ChangeLogRetentionPeriod property.
since = alertList.Created;
//since = DateTime.UtcNow.AddDays(-30);
}
//SPChangeToken startToken = new SPChangeToken(SPChangeCollection.CollectionScope.List, list.ID, DateTime.UtcNow);
//SPChangeToken endToken = new SPChangeToken(SPChangeCollection.CollectionScope.List,list.ID, new DateTime(2008, 10, 18));
SPChangeToken token = new SPChangeToken(SPChangeCollection.CollectionScope.List, this.alertList.ID, since.ToUniversalTime());
//Dictionary<int,Alert> modifiedAlerts = new Dictionary<int,Alert>();
foreach (SPChange change in alertList.GetChanges(token))
{
if (!(change is SPChangeItem))
{
continue;
}
SPChangeItem item = change as SPChangeItem;
if (!modifiedAlerts.ContainsKey(item.Id))
{
Alert alert = null;
//if(item.ChangeType != 3)
try
{
alert = new Alert(alertList.GetItemById(item.Id), new MailTemplateManager(alertList.ParentWeb));
}
catch
{
//item has been deleted
}
//if (alert != null && !alert.ImmidiateAlways)
//{
// alert = null;
//}
modifiedAlerts.Add(item.Id, alert);
}
//Check if the alert is not immediate and all the stuff which are not eligible for timer based alerts
}
}
catch { }
return(modifiedAlerts);
}
protected virtual bool ShouldNotify(SPChangeItem change)
{
return(true);
}
protected override bool ShouldNotify(SPChangeItem change)
{
return(monitoredLists.Contains(change.ListId));
}
protected override bool ShouldNotify(SPChangeItem change)
{
return(change.ListId == listId);
}