private AttachmentRetriever(string id, IdConverterDependencies converterDependencies)
{
bool flag = false;
try
{
ExTraceGlobals.AttachmentHandlingTracer.TraceDebug <string>((long)this.GetHashCode(), "Initialize IdAndSession to get attachment, id = {0}", id);
List <AttachmentId> attachmentIds = new List <AttachmentId>();
IdHeaderInformation headerInformation = ServiceIdConverter.ConvertFromConcatenatedId(id, BasicTypes.ItemOrAttachment, attachmentIds);
Item item = null;
IdAndSession idAndSession;
try
{
idAndSession = IdConverter.ConvertId(converterDependencies, headerInformation, IdConverter.ConvertOption.IgnoreChangeKey | IdConverter.ConvertOption.NoBind, BasicTypes.ItemOrAttachment, attachmentIds, null, this.GetHashCode(), false, ref item);
}
finally
{
if (item != null)
{
item.Dispose();
item = null;
}
}
this.attachmentHierarchy = new AttachmentHierarchy(idAndSession, false, true);
flag = true;
}
finally
{
if (!flag)
{
this.Dispose();
}
}
}
internal static AttachmentHandler.IAttachmentRetriever CreateInstance(string id, IdConverterDependencies converterDependencies)
{
if (string.IsNullOrEmpty(id))
{
throw new ArgumentException("id cannot be null or empty");
}
if (converterDependencies == null)
{
throw new ArgumentException("converterDependencies cannot be null");
}
return(new AttachmentRetriever(id, converterDependencies));
}