// Read the properties in a property context
// T is the type of the object to be populated
// Property getters must be supplied to map property Ids to members of T
// The returned value is the subnode tree, if any, related to the contents of the properties
//
// First form takes a node ID for a node in the main node tree
public BTree <Node> ReadProperties <T>(FileStream fs, NID nid, PropertyGetters <T> g, T target)
{
BTree <Node> subNodeTree;
var rn = ndb.LookupNodeAndReadItsSubNodeBtree(fs, nid, out subNodeTree);
ReadPropertiesInternal <T>(fs, subNodeTree, rn.DataBid, g, target);
return(subNodeTree);
}
public List <Property> ReadAttachmentProperties(Attachment a)
{
using (var fs = ndb.GetReadStream())
{
BTree <Node> subNodeTreeMessage = a.subNodeTreeProperties;
if (subNodeTreeMessage == null)
{
// No subNodeTree given: assume we can look it up in the main tree
ndb.LookupNodeAndReadItsSubNodeBtree(fs, a.Parent.Nid, out subNodeTreeMessage);
}
// Read all non-content properties
// Convert to list so that we can dispose the file access
return(new List <Property>(ltp.ReadAllProperties(fs, subNodeTreeMessage, a.Nid, attachmentContentExclusions, true)));
}
}
