private void ProcessSelectExpandItem(SelectExpandClause clause, EdmNode edmNode, CustomNavigationProperty parentCustomNavProp, NavigationPropertySegment parentSegment)
{
if (edmNode == null)
{
var entityType = parentSegment.EdmType.AsElementType() as EdmEntityType;
var RdfNode = new VariablePattern($"{parentSegment.NavigationProperty.Name}");
edmNode = new EdmNode()
{
Name = parentSegment.NavigationProperty.Name,
ItemEdmType = entityType,
RdfNode = RdfNode,
//StructProperties = entityType.StructuralProperties().ToList(),
NavProperties = new List <CustomNavigationProperty>()
};
parentCustomNavProp.NestedEdmNodes.Add(edmNode);
}
List <IEdmStructuralProperty> structPropList = new List <IEdmStructuralProperty>();
foreach (var item in clause.SelectedItems)
{
var selectItem = item as PathSelectItem;
if (selectItem != null && selectItem.SelectedPath != null)
{
var segment = selectItem.SelectedPath.FirstSegment as PropertySegment;
if (segment != null)
{
structPropList.Add(segment.Property);
}
}
var expandItem = item as ExpandedNavigationSelectItem;
if (expandItem != null)
{
var segment = expandItem.PathToNavigationProperty.FirstSegment as NavigationPropertySegment;
if (segment != null && expandItem.SelectAndExpand != null)
{
CustomNavigationProperty customNavProp = new CustomNavigationProperty();
edmNode.NavProperties.Add(customNavProp);
customNavProp.NestedEdmNodes = new List <EdmNode>();
customNavProp.NavigationProperty = segment.NavigationProperty;
customNavProp.Filters = expandItem.FilterOption != null ? expandItem.FilterOption.Expression : null;
customNavProp.Top = expandItem.TopOption.GetValueOrDefault();
customNavProp.Skip = expandItem.SkipOption.GetValueOrDefault();
customNavProp.OrderBy = expandItem.OrderByOption;
ProcessSelectExpandItem(expandItem.SelectAndExpand, null, customNavProp, segment);
}
}
}
if (structPropList.Count > 0)
{
//edmNode.StructProperties = structPropList;
if (parentCustomNavProp != null)
{
parentCustomNavProp.StructProperties = structPropList;
}
}
}
private void ProcessOdataPath()
{
foreach (var seg in QueryOptions.Context.Path.Segments)
{
if (seg is EntitySetSegment)
{
var setSeg = seg as EntitySetSegment;
var entityType = setSeg.EdmType.AsElementType() as EdmEntityType;
var rdfNode = new VariablePattern($"{setSeg.EntitySet.Name}");
EdmNodeList.Add(new EdmNode()
{
Name = setSeg.EntitySet.Name,
ItemEdmType = entityType,
RdfNode = rdfNode,
StructProperties = entityType.StructuralProperties().ToList(),
NavProperties = new List <CustomNavigationProperty>()
});
}
else if (seg is KeySegment)
{
var keys = (seg as KeySegment).Keys.ToList();
Uri keyUri = null;
var edmNode = EdmNodeList[EdmNodeList.Count - 1];
if (keys.Count() > 0)
{
edmNode.IdKey = keys[0].Value.ToString();
if (keys[0].Value.ToString().StartsWith(NamespaceUri.AbsoluteUri))
{
keyUri = new Uri(keys[0].Value.ToString());
}
else
{
keyUri = new Uri(NamespaceUri, keys[0].Value.ToString());
}
}
NodeFactory nodeFactory = new NodeFactory();
edmNode.RdfNode = new NodeMatchPattern(nodeFactory.CreateUriNode(keyUri));
}
else if (seg is NavigationPropertySegment || seg is NavigationPropertyLinkSegment)
{
var propSeg = seg as NavigationPropertySegment;
var propSegLink = seg as NavigationPropertyLinkSegment;
EdmEntityType entityType;
CustomNavigationProperty navProp = new CustomNavigationProperty();
if (propSeg != null)
{
entityType = propSeg.EdmType.AsElementType() as EdmEntityType;
navProp.NavigationProperty = propSeg.NavigationProperty;
}
else
{
entityType = propSegLink.EdmType.AsElementType() as EdmEntityType;
navProp.NavigationProperty = propSegLink.NavigationProperty;
}
var edmNode = EdmNodeList[EdmNodeList.Count - 1];
edmNode.NavProperties.Add(navProp);
EdmNodeList.Add(new EdmNode()
{
Name = navProp.NavigationProperty.Name,
ItemEdmType = entityType,
RdfNode = new VariablePattern($"{navProp.NavigationProperty.Name}"),
StructProperties = entityType.StructuralProperties().ToList(),
NavProperties = new List <CustomNavigationProperty>()
});
}
else if (seg is PropertySegment)
{
var propSeg = seg as PropertySegment;
var edmNode = EdmNodeList[EdmNodeList.Count - 1];
edmNode.StructProperties.Clear();
edmNode.StructProperties.Add(propSeg.Property);
}
else if (seg is CountSegment)
{
}
else if (seg is ValueSegment)
{
}
else
{
throw new Exception($"Error with {seg.ToString()}");
}
}
}