private void LoadClassList(Cursor dataTableCursor)
{
// Initialize the class list
this.classesByName = new Dictionary<string, int>();
// Load column IDs
Columnid ldapDisplayNameCol = this.FindColumnId(CommonDirectoryAttributes.LDAPDisplayName);
Columnid dntCol = this.FindColumnId(CommonDirectoryAttributes.DNTag);
// Search for all classes
dataTableCursor.CurrentIndex = this.FindIndexName(CommonDirectoryAttributes.ObjectClass);
dataTableCursor.FindRecords(MatchCriteria.EqualTo, Key.Compose(CommonDirectoryClasses.ClassSchemaId));
while (dataTableCursor.MoveNext())
{
// TODO: Load more data about classes
int classId = dataTableCursor.RetrieveColumnAsDNTag(dntCol).Value;
string className = dataTableCursor.RetrieveColumnAsString(ldapDisplayNameCol);
classesByName.Add(className, classId);
}
}
private void LoadAttributeProperties(Cursor dataTableCursor)
{
// With these built-in attributes, ID == Internal ID
Columnid attributeIdCol = this.attributesByInternalId[CommonDirectoryAttributes.AttributeIdId].ColumnID;
SchemaAttribute ldapDisplayNameAtt = this.attributesByInternalId[CommonDirectoryAttributes.LdapDisplayNameId];
Columnid ldapDisplayNameCol = ldapDisplayNameAtt.ColumnID;
// Set index to ldapDisplayName so that we can find attributes by their name
dataTableCursor.CurrentIndex = ldapDisplayNameAtt.Index;
// Load attribute ids of attributeSchema attributes by doing DB lookups
// TODO: Hardcode IDs of these attributes so that we do not have to do DB lookups?
Columnid internalIdCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.InternalId);
Columnid linkIdCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.LinkId);
Columnid isSingleValuedCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.IsSingleValued);
Columnid attributeSyntaxCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.AttributeSyntax);
Columnid isInGlobalCatalogCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.IsInGlobalCatalog);
Columnid searchFlagsCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.SearchFlags);
Columnid systemOnlyCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.SystemOnly);
Columnid syntaxCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.AttributeSyntax);
Columnid omSyntaxCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.AttributeOmSyntax);
Columnid cnCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.CommonName);
Columnid rangeLowerCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.RangeLower);
Columnid rangeUpperCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.RangeUpper);
Columnid schemaGuidCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.SchemaGuid);
Columnid systemFlagsCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.SystemFlags);
Columnid isDefunctCol = this.LoadColumnIdByAttributeName(dataTableCursor, CommonDirectoryAttributes.IsDefunct);
// Now traverse through all schema attributes and load their properties
dataTableCursor.CurrentIndex = this.attributesByInternalId[CommonDirectoryAttributes.ObjectClassId].Index;
dataTableCursor.FindRecords(MatchCriteria.EqualTo, Key.Compose(CommonDirectoryClasses.AttributeSchemaId));
while (dataTableCursor.MoveNext())
{
int? internalId = dataTableCursor.RetrieveColumnAsInt(internalIdCol);
int attributeId = dataTableCursor.RetrieveColumnAsInt(attributeIdCol).Value;
// Some built-in attributes do not have internal id set, which meand it is equal to the public id
int id = internalId ?? attributeId;
SchemaAttribute attribute;
bool found = this.attributesByInternalId.TryGetValue(id, out attribute);
if (! found)
{
// Load info about a new attribute
attribute = new SchemaAttribute();
attribute.InternalId = internalId;
}
attribute.Id = dataTableCursor.RetrieveColumnAsInt(attributeIdCol).Value;
attribute.Name = dataTableCursor.RetrieveColumnAsString(ldapDisplayNameCol);
attribute.CommonName = dataTableCursor.RetrieveColumnAsString(cnCol);
attribute.RangeLower = dataTableCursor.RetrieveColumnAsInt(rangeLowerCol);
attribute.RangeUpper = dataTableCursor.RetrieveColumnAsInt(rangeUpperCol);
attribute.SchemaGuid = dataTableCursor.RetrieveColumnAsGuid(schemaGuidCol).Value;
attribute.IsDefunct = dataTableCursor.RetrieveColumnAsBoolean(isDefunctCol);
attribute.SystemFlags = dataTableCursor.RetrieveColumnAsAttributeSystemFlags(systemFlagsCol);
attribute.LinkId = dataTableCursor.RetrieveColumnAsInt(linkIdCol);
attribute.IsInGlobalCatalog = dataTableCursor.RetrieveColumnAsBoolean(isInGlobalCatalogCol);
attribute.IsSingleValued = dataTableCursor.RetrieveColumnAsBoolean(isSingleValuedCol);
attribute.SearchFlags = dataTableCursor.RetrieveColumnAsSearchFlags(searchFlagsCol);
attribute.IsSystemOnly = dataTableCursor.RetrieveColumnAsBoolean(systemOnlyCol);
attribute.Syntax = dataTableCursor.RetrieveColumnAsAttributeSyntax(syntaxCol);
attribute.OmSyntax = dataTableCursor.RetrieveColumnAsAttributeOmSyntax(omSyntaxCol);
// Make it case-insensitive by always lowering the name:
this.attributesByName.Add(attribute.Name.ToLower(), attribute);
}
}