/// <summary>
/// Write the property access token as URI part to this builder.
/// </summary>
/// <param name="propertyAccess">To write as URI part.</param>
protected virtual void WritePropertyAccess(PropertyAccessQueryToken propertyAccess)
{
ExceptionUtils.CheckArgumentNotNull(propertyAccess, "propertyAccess");
if (propertyAccess.Parent != null)
{
this.WriteQuery(propertyAccess.Parent);
this.builder.Append(ExpressionConstants.SymbolForwardSlash);
}
this.builder.Append(propertyAccess.Name);
}
/// <summary>
/// Binds a property access token.
/// </summary>
/// <param name="propertyAccessToken">The property access token to bind.</param>
/// <returns>The bound property access token.</returns>
protected virtual QueryNode BindPropertyAccess(PropertyAccessQueryToken propertyAccessToken)
{
ExceptionUtils.CheckArgumentNotNull(propertyAccessToken, "propertyAccessToken");
ExceptionUtils.CheckArgumentStringNotNullOrEmpty(propertyAccessToken.Name, "propertyAccessToken.Name");
SingleValueQueryNode parentNode;
SingleValueQueryNode navigationPath = null;
// Set the parentNode (get the parent type, so you can check whether the Name inside propertyAccessToken really is legit offshoot of the parent type)
QueryNode parent = null;
if (propertyAccessToken.Parent == null)
{
if (this.parameter == null)
{
throw new ODataException(Strings.MetadataBinder_PropertyAccessWithoutParentParameter);
}
parentNode = this.parameter;
parent = this.parameter;
}
else
{
parent = this.Bind(propertyAccessToken.Parent) as SingleValueQueryNode;
if (parent == null)
{
throw new ODataException(Strings.MetadataBinder_PropertyAccessSourceNotSingleValue(propertyAccessToken.Name));
}
NavigationPropertyNode parentNav = parent as NavigationPropertyNode;
CastNode parentCast = parent as CastNode;
PropertyAccessQueryNode parentProperty = parent as PropertyAccessQueryNode;
if (parentProperty != null)
{
navigationPath = parentProperty;
var propertyPath = (IEdmStructuralProperty)parentProperty.Property;
parentNode = new ParameterQueryNode()
{
ParameterType = propertyPath.Type
};
}
else if (parentCast != null)
{
IEdmType entityType = parentCast.EdmType;
parentNode = new ParameterQueryNode()
{
ParameterType = entityType.ToTypeReference()
};
}
else if (parentNav != null)
{
navigationPath = parentNav;
IEdmEntityType entityType = parentNav.NavigationProperty.ToEntityType();
parentNode = new ParameterQueryNode()
{
ParameterType = new EdmEntityTypeReference(entityType, true)
};
}
else
{
parentNode = this.Bind(propertyAccessToken.Parent) as SingleValueQueryNode;
}
}
// Now that we have the parent type, can find its corresponding EDM type
IEdmStructuredTypeReference structuredParentType =
parentNode.TypeReference == null ? null : parentNode.TypeReference.AsStructuredOrNull();
IEdmProperty property =
structuredParentType == null ? null : structuredParentType.FindProperty(propertyAccessToken.Name);
if (property != null)
{
// TODO: Check that we have entity set once we add the entity set propagation into the bound tree
// See RequestQueryParser.ExpressionParser.ParseMemberAccess
if (property.Type.IsNonEntityODataCollectionTypeKind())
{
throw new ODataException(Strings.MetadataBinder_MultiValuePropertyNotSupportedInExpression(property.Name));
}
if (property.PropertyKind == EdmPropertyKind.Navigation)
{
// TODO: Implement navigations
throw new NotImplementedException();
}
if (navigationPath != null)
{
parentNode = navigationPath;
}
return new PropertyAccessQueryNode()
{
Source = (SingleValueQueryNode)parent,
Property = property
};
}
else
{
if (parentNode.TypeReference != null && !parentNode.TypeReference.Definition.IsOpenType())
{
throw new ODataException(Strings.MetadataBinder_PropertyNotDeclared(parentNode.TypeReference.ODataFullName(), propertyAccessToken.Name));
}
// TODO: Implement open property support
throw new NotImplementedException();
}
}
/// <summary>
/// Binds a property access token.
/// </summary>
/// <param name="propertyAccessToken">The property access token to bind.</param>
/// <returns>The bound property access token.</returns>
protected virtual QueryNode BindPropertyAccess(PropertyAccessQueryToken propertyAccessToken)
{
ExceptionUtils.CheckArgumentNotNull(propertyAccessToken, "propertyAccessToken");
ExceptionUtils.CheckArgumentStringNotNullOrEmpty(propertyAccessToken.Name, "propertyAccessToken.Name");
SingleValueQueryNode parentNode;
if (propertyAccessToken.Parent == null)
{
if (this.parameter == null)
{
throw new ODataException(Strings.MetadataBinder_PropertyAccessWithoutParentParameter);
}
parentNode = this.parameter;
}
else
{
// TODO: Do we really want to fail with cast exception if the parent is a collection (for example)?
parentNode = this.Bind(propertyAccessToken.Parent) as SingleValueQueryNode;
if (parentNode == null)
{
throw new ODataException(Strings.MetadataBinder_PropertyAccessSourceNotSingleValue(propertyAccessToken.Name));
}
}
ResourceProperty property = parentNode.ResourceType == null ?
null : parentNode.ResourceType.TryResolvePropertyName(propertyAccessToken.Name);
if (property != null)
{
// TODO: Check that we have resourceset once we add the resource set propagation into the bound tree
// See RequestQueryParser.ExpressionParser.ParseMemberAccess
if (property.Kind == ResourcePropertyKind.MultiValue)
{
throw new ODataException(Strings.MetadataBinder_MultiValuePropertyNotSupportedInExpression(property.Name));
}
if (property.Kind == ResourcePropertyKind.ResourceReference || property.Kind == ResourcePropertyKind.ResourceSetReference)
{
// TODO: Implement navigations
throw new NotImplementedException();
}
return new PropertyAccessQueryNode()
{
Source = parentNode,
Property = property
};
}
else
{
if (parentNode.ResourceType != null && !parentNode.ResourceType.IsOpenType)
{
throw new ODataException(Strings.MetadataBinder_PropertyNotDeclared(parentNode.ResourceType.FullName, propertyAccessToken.Name));
}
// TODO: Implement open property support
throw new NotImplementedException();
}
}
/// <summary>
/// Write the property access token as URI part to this builder.
/// </summary>
/// <param name="propertyAccess">To write as URI part.</param>
protected virtual void WritePropertyAccess(PropertyAccessQueryToken propertyAccess)
{
ExceptionUtils.CheckArgumentNotNull(propertyAccess, "propertyAccess");
if (propertyAccess.Parent != null)
{
this.WriteQuery(propertyAccess.Parent);
this.builder.Append(ExpressionConstants.SymbolForwardSlash);
}
this.builder.Append(propertyAccess.Name);
}
