/// <summary>
/// Gets the number of pointers that need to be read from the request, taking
/// into account any pre-cached binary data.
/// </summary>
/// <returns>The number of pointers that need to be read</returns>
private int GetNumberOfPointers()
{
/* check to see if we have already cached the data for
* all pointers. if so, we can skip reading the binary sections.
* (unfortunately, if we have cached some of the sections but not all,
* we will probably have to read it all in again, depending on the order
* they are included)
* */
int c = 0;
foreach (Header header in this.headers.Pointers)
{
Pointer pointer = new Pointer(this.headers);
this.pointers.Add(pointer);
if (ResourceCache.IsCached(this.applicationName, header.GrowlResourcePointerID))
{
BinaryData data = ResourceCache.Get(this.applicationName, header.GrowlResourcePointerID);
pointer.Identifier = header.GrowlResourcePointerID;
pointer.ByteArray = data.Data;
c++;
}
}
foreach (HeaderCollection notification in this.notificationsToBeRegistered)
{
foreach (Header header in notification.Pointers)
{
Pointer pointer = new Pointer(notification);
this.pointers.Add(pointer);
if (ResourceCache.IsCached(this.applicationName, header.GrowlResourcePointerID))
{
BinaryData data = ResourceCache.Get(this.applicationName, header.GrowlResourcePointerID);
pointer.Identifier = header.GrowlResourcePointerID;
pointer.ByteArray = data.Data;
c++;
}
}
}
int p = this.pointers.Count;
// TODO: this effectively causes no cached resources to ever be used
//c = int.MaxValue;
// check to see if all pointers were already cached
if (p == c) p = 0; // if #cached == total#, we dont need to read any
else
{
// not all of the items are cached, so we have to re-read all of them.
// to do so, we have to clear any pointer data we may have set
foreach (Pointer pointer in this.pointers)
{
pointer.Clear();
}
}
if (c > 0 && p == 0)
{
requestInfo.SaveHandlingInfo("ALL BINARY RESOURCES ALREADY CACHED");
}
return p;
}