private GroupByTransformationNode BindGroupByToken(GroupByToken token)
{
List <GroupByPropertyNode> properties = new List <GroupByPropertyNode>();
foreach (EndPathToken propertyToken in token.Properties)
{
QueryNode bindResult = this.bindMethod(propertyToken);
SingleValuePropertyAccessNode property = bindResult as SingleValuePropertyAccessNode;
SingleComplexNode complexProperty = bindResult as SingleComplexNode;
if (property != null)
{
RegisterProperty(properties, ReversePropertyPath(property));
}
else if (complexProperty != null)
{
RegisterProperty(properties, ReversePropertyPath(complexProperty));
}
else
{
SingleValueOpenPropertyAccessNode openProperty = bindResult as SingleValueOpenPropertyAccessNode;
if (openProperty != null)
{
IEdmTypeReference type = GetTypeReferenceByPropertyName(openProperty.Name);
properties.Add(new GroupByPropertyNode(openProperty.Name, openProperty, type));
}
else
{
throw new ODataException(
ODataErrorStrings.ApplyBinder_GroupByPropertyNotPropertyAccessValue(propertyToken.Identifier));
}
}
}
var newProperties = new HashSet <EndPathToken>(((GroupByToken)token).Properties);
TransformationNode aggregate = null;
if (token.Child != null)
{
if (token.Child.Kind == QueryTokenKind.Aggregate)
{
aggregate = BindAggregateToken((AggregateToken)token.Child);
aggregateExpressionsCache = ((AggregateTransformationNode)aggregate).AggregateExpressions;
newProperties.UnionWith(aggregateExpressionsCache.Select(statement => new EndPathToken(statement.Alias, null)));
}
else
{
throw new ODataException(ODataErrorStrings.ApplyBinder_UnsupportedGroupByChild(token.Child.Kind));
}
}
state.AggregatedPropertyNames = newProperties;
// TODO: Determine source
return(new GroupByTransformationNode(properties, aggregate, null));
}
private GroupByTransformationNode BindGroupByToken(GroupByToken token)
{
var properties = new List <GroupByPropertyNode>();
foreach (var propertyToken in token.Properties)
{
var bindResult = this.bindMethod(propertyToken);
var property = bindResult as SingleValuePropertyAccessNode;
var complexProperty = bindResult as SingleComplexNode;
if (property != null)
{
RegisterProperty(properties, ReversePropertyPath(property));
}
else if (complexProperty != null)
{
RegisterProperty(properties, ReversePropertyPath(complexProperty));
}
else
{
var openProperty = bindResult as SingleValueOpenPropertyAccessNode;
if (openProperty != null)
{
var type = GetTypeReferenceByPropertyName(openProperty.Name);
properties.Add(new GroupByPropertyNode(openProperty.Name, openProperty, type));
}
else
{
throw new ODataException(
ODataErrorStrings.ApplyBinder_GroupByPropertyNotPropertyAccessValue(propertyToken.Identifier));
}
}
}
TransformationNode aggregate = null;
if (token.Child != null)
{
if (token.Child.Kind == QueryTokenKind.Aggregate)
{
aggregate = BindAggregateToken((AggregateToken)token.Child);
aggregateExpressionsCache = ((AggregateTransformationNode)aggregate).Expressions;
state.AggregatedPropertyNames =
aggregateExpressionsCache.Select(statement => statement.Alias).ToList();
}
else
{
throw new ODataException(ODataErrorStrings.ApplyBinder_UnsupportedGroupByChild(token.Child.Kind));
}
}
// TODO: Determine source
return(new GroupByTransformationNode(properties, aggregate, null));
}
/// <summary>
/// Build a segment from a token.
/// </summary>
/// <param name="tokenIn">the token to bind</param>
/// <param name="model">The model.</param>
/// <param name="edmType">the type of the current scope based on type segments.</param>
/// <param name="resolver">Resolver for uri parser.</param>
/// <param name="state">The binding state.</param>
/// <returns>The segment created from the token.</returns>
public static ODataPathSegment ConvertNonTypeTokenToSegment(PathSegmentToken tokenIn, IEdmModel model, IEdmStructuredType edmType, ODataUriResolver resolver, BindingState state = null)
{
ExceptionUtils.CheckArgumentNotNull(resolver, "resolver");
ODataPathSegment nextSegment;
if (UriParserHelper.IsAnnotation(tokenIn.Identifier))
{
if (TryBindAsDeclaredTerm(tokenIn, model, resolver, out nextSegment))
{
return(nextSegment);
}
string qualifiedTermName = tokenIn.Identifier.Remove(0, 1);
int separator = qualifiedTermName.LastIndexOf(".", StringComparison.Ordinal);
string namespaceName = qualifiedTermName.Substring(0, separator);
string termName = qualifiedTermName.Substring(separator == 0 ? 0 : separator + 1);
// Don't allow selecting odata control information
if (String.Compare(namespaceName, ODataConstants.ODataPrefix, StringComparison.OrdinalIgnoreCase) == 0)
{
throw new ODataException(ODataErrorStrings.UriSelectParser_TermIsNotValid(tokenIn.Identifier));
}
return(new AnnotationSegment(new EdmTerm(namespaceName, termName, EdmCoreModel.Instance.GetUntyped())));
}
EndPathToken endPathToken = new EndPathToken(tokenIn.Identifier, null);
if ((state?.IsCollapsed ?? false) && !(state?.AggregatedPropertyNames?.Contains(endPathToken) ?? false))
{
throw new ODataException(ODataErrorStrings.ApplyBinder_GroupByPropertyNotPropertyAccessValue(tokenIn.Identifier));
}
if (TryBindAsDeclaredProperty(tokenIn, edmType, resolver, out nextSegment))
{
return(nextSegment);
}
// Operations must be container-qualified, and because the token type indicates it was not a .-separated identifier, we should not try to look up operations.
if (tokenIn.IsNamespaceOrContainerQualified())
{
if (TryBindAsOperation(tokenIn, model, edmType, out nextSegment))
{
return(nextSegment);
}
// If an action or function is requested in a selectItem using a qualifiedActionName or a qualifiedFunctionName
// and that operation cannot be bound to the entities requested, the service MUST ignore the selectItem.
if (!edmType.IsOpen)
{
return(null);
}
}
if (edmType.IsOpen || (state?.AggregatedPropertyNames?.Contains(endPathToken) ?? false))
{
return(new DynamicPathSegment(tokenIn.Identifier));
}
throw new ODataException(ODataErrorStrings.MetadataBinder_PropertyNotDeclared(edmType.FullTypeName(), tokenIn.Identifier));
}
/// <summary>
/// Binds an end path token into a PropertyAccessToken, OpenPropertyToken, or FunctionCallToken.
/// </summary>
/// <param name="endPathToken">The property access token to bind.</param>
/// <returns>A Query node representing this endpath token, bound to metadata.</returns>
internal QueryNode BindEndPath(EndPathToken endPathToken)
{
ExceptionUtils.CheckArgumentNotNull(endPathToken, "EndPathToken");
ExceptionUtils.CheckArgumentStringNotNullOrEmpty(endPathToken.Identifier, "EndPathToken.Identifier");
// Set the parent (get the parent type, so you can check whether the Identifier inside EndPathToken really is legit offshoot of the parent type)
QueryNode parent = this.DetermineParentNode(endPathToken);
QueryNode boundFunction;
SingleValueNode singleValueParent = parent as SingleValueNode;
if (singleValueParent != null)
{
if (endPathToken.Identifier == ExpressionConstants.QueryOptionCount)
{
return(new CountVirtualPropertyNode());
}
if (state.IsCollapsed && !IsAggregatedProperty(endPathToken))
{
throw new ODataException(ODataErrorStrings.ApplyBinder_GroupByPropertyNotPropertyAccessValue(endPathToken.Identifier));
}
// Now that we have the parent type, can find its corresponding EDM type
IEdmStructuredTypeReference structuredParentType =
singleValueParent.TypeReference == null ? null : singleValueParent.TypeReference.AsStructuredOrNull();
IEdmProperty property =
structuredParentType == null ? null : this.Resolver.ResolveProperty(structuredParentType.StructuredDefinition(), endPathToken.Identifier);
if (property != null)
{
return(GeneratePropertyAccessQueryNode(singleValueParent as SingleResourceNode, property, state));
}
if (functionCallBinder.TryBindEndPathAsFunctionCall(endPathToken, singleValueParent, state, out boundFunction))
{
return(boundFunction);
}
return(GeneratePropertyAccessQueryForOpenType(endPathToken, singleValueParent));
}
// Collection with any or all expression is already supported and handled separately.
// Add support of collection with $count segment.
CollectionNode colNode = parent as CollectionNode;
if (colNode != null && endPathToken.Identifier.Equals(UriQueryConstants.CountSegment))
{
// create a collection count node for collection node property.
return(new CountNode(colNode));
}
CollectionNavigationNode collectionParent = parent as CollectionNavigationNode;
if (collectionParent != null)
{
IEdmEntityTypeReference parentType = collectionParent.EntityItemType;
IEdmProperty property = this.Resolver.ResolveProperty(parentType.StructuredDefinition(), endPathToken.Identifier);
if (property.PropertyKind == EdmPropertyKind.Structural &&
!property.Type.IsCollection() &&
this.state.InEntitySetAggregation)
{
return(new AggregatedCollectionPropertyNode(collectionParent, property));
}
}
if (functionCallBinder.TryBindEndPathAsFunctionCall(endPathToken, parent, state, out boundFunction))
{
return(boundFunction);
}
throw new ODataException(ODataErrorStrings.MetadataBinder_PropertyAccessSourceNotSingleValue(endPathToken.Identifier));
}
