/// <summary>
/// Bind path segment's operation or operationImport's parameters.
/// </summary>
/// <param name="configuration">The ODataUriParserConfiguration.</param>
/// <param name="functionOrOpertion">The function or operation.</param>
/// <param name="segmentParameterTokens">The parameter tokens to be binded.</param>
/// <returns>The binded semantic nodes.</returns>
internal static List <OperationSegmentParameter> BindSegmentParameters(ODataUriParserConfiguration configuration, IEdmOperation functionOrOpertion, ICollection <FunctionParameterToken> segmentParameterTokens)
{
// TODO: HandleComplexOrCollectionParameterValueIfExists is temp work around for single copmlex or colleciton type, it can't handle nested complex or collection value.
ICollection <FunctionParameterToken> parametersParsed = FunctionCallBinder.HandleComplexOrCollectionParameterValueIfExists(configuration.Model, functionOrOpertion, segmentParameterTokens, configuration.Resolver.EnableCaseInsensitive, configuration.EnableUriTemplateParsing);
// Bind it to metadata
BindingState state = new BindingState(configuration);
state.ImplicitRangeVariable = null;
state.RangeVariables.Clear();
MetadataBinder binder = new MetadataBinder(state);
List <OperationSegmentParameter> boundParameters = new List <OperationSegmentParameter>();
IDictionary <string, SingleValueNode> input = new Dictionary <string, SingleValueNode>(StringComparer.Ordinal);
foreach (FunctionParameterToken paraToken in parametersParsed)
{
// TODO: considering another better exception
if (paraToken.ValueToken is EndPathToken)
{
throw new ODataException(Strings.MetadataBinder_ParameterNotInScope(
string.Format(CultureInfo.InvariantCulture, "{0}={1}", paraToken.ParameterName, (paraToken.ValueToken as EndPathToken).Identifier)));
}
SingleValueNode boundNode = (SingleValueNode)binder.Bind(paraToken.ValueToken);
if (!input.ContainsKey(paraToken.ParameterName))
{
input.Add(paraToken.ParameterName, boundNode);
}
}
IDictionary <IEdmOperationParameter, SingleValueNode> result = configuration.Resolver.ResolveOperationParameters(functionOrOpertion, input);
foreach (KeyValuePair <IEdmOperationParameter, SingleValueNode> item in result)
{
SingleValueNode boundNode = item.Value;
// ensure node type is compatible with parameter type.
IEdmTypeReference sourceTypeReference = boundNode.GetEdmTypeReference();
bool sourceIsNullOrOpenType = (sourceTypeReference == null);
if (!sourceIsNullOrOpenType)
{
// if the node has been rewritten, no further conversion is needed.
if (!TryRewriteIntegralConstantNode(ref boundNode, item.Key.Type))
{
boundNode = MetadataBindingUtils.ConvertToTypeIfNeeded(boundNode, item.Key.Type);
}
}
OperationSegmentParameter boundParamer = new OperationSegmentParameter(item.Key.Name, boundNode);
boundParameters.Add(boundParamer);
}
return(boundParameters);
}
/// <summary>
/// Promotes types of arguments to match signature if possible.
/// </summary>
/// <param name="signature">The signature to match the types to.</param>
/// <param name="argumentNodes">The types to promote.</param>
internal static void TypePromoteArguments(FunctionSignatureWithReturnType signature, List <QueryNode> argumentNodes)
{
// Convert all argument nodes to the best signature argument type
Debug.Assert(signature.ArgumentTypes.Length == argumentNodes.Count, "The best signature match doesn't have the same number of arguments.");
for (int i = 0; i < argumentNodes.Count; i++)
{
Debug.Assert(argumentNodes[i] is SingleValueNode, "We should have already verified that all arguments are single values.");
SingleValueNode argumentNode = (SingleValueNode)argumentNodes[i];
IEdmTypeReference signatureArgumentType = signature.ArgumentTypes[i];
Debug.Assert(signatureArgumentType.IsODataPrimitiveTypeKind() || signatureArgumentType.IsODataEnumTypeKind(), "Only primitive or enum types should be able to get here.");
argumentNodes[i] = MetadataBindingUtils.ConvertToTypeIfNeeded(argumentNode, signatureArgumentType);
}
}
/// <summary>
/// Binds a unary operator token.
/// </summary>
/// <param name="unaryOperatorToken">The unary operator token to bind.</param>
/// <returns>The bound unary operator token.</returns>
internal QueryNode BindUnaryOperator(UnaryOperatorToken unaryOperatorToken)
{
ExceptionUtils.CheckArgumentNotNull(unaryOperatorToken, "unaryOperatorToken");
SingleValueNode operand = this.GetOperandFromToken(unaryOperatorToken);
IEdmTypeReference typeReference = UnaryOperatorBinder.PromoteOperandType(operand, unaryOperatorToken.OperatorKind);
Debug.Assert(typeReference == null || typeReference.IsODataPrimitiveTypeKind(), "Only primitive types should be able to get here.");
operand = MetadataBindingUtils.ConvertToTypeIfNeeded(operand, typeReference);
return(new UnaryOperatorNode(unaryOperatorToken.OperatorKind, operand));
}
/// <summary>
/// Binds a key property value.
/// </summary>
/// <param name="namedValue">The named value to bind.</param>
/// <param name="collectionItemEntityType">The type of a single item in a collection to apply the key value to.</param>
/// <param name="keys">Dictionary of alias to keys.</param>
/// <param name="keyPropertyValue">The bound key property value node.</param>
/// <returns>The bound key property value node.</returns>
private bool TryBindKeyPropertyValue(NamedValue namedValue, IEdmEntityType collectionItemEntityType, IDictionary <string, IEdmProperty> keys, out KeyPropertyValue keyPropertyValue)
{
// These are exception checks because the data comes directly from the potentially user specified tree.
ExceptionUtils.CheckArgumentNotNull(namedValue, "namedValue");
ExceptionUtils.CheckArgumentNotNull(namedValue.Value, "namedValue.Value");
Debug.Assert(collectionItemEntityType != null, "collectionItemType != null");
IEdmProperty keyProperty = null;
if (namedValue.Name == null)
{
foreach (IEdmProperty p in keys.Values)
{
if (keyProperty == null)
{
keyProperty = p;
}
else
{
throw new ODataException(ODataErrorStrings.MetadataBinder_UnnamedKeyValueOnTypeWithMultipleKeyProperties(collectionItemEntityType.FullTypeName()));
}
}
}
else
{
keyProperty = keys.SingleOrDefault(k => string.CompareOrdinal(k.Key, namedValue.Name) == 0).Value;
if (keyProperty == null)
{
keyPropertyValue = null;
return(false);
}
}
IEdmTypeReference keyPropertyType = keyProperty.Type;
SingleValueNode value = (SingleValueNode)this.keyValueBindMethod(namedValue.Value);
// TODO: Check that the value is of primitive type
Debug.Assert(keyPropertyType.IsODataPrimitiveTypeKind(), "The key's type must be primitive.");
value = MetadataBindingUtils.ConvertToTypeIfNeeded(value, keyPropertyType);
Debug.Assert(keyProperty != null, "keyProperty != null");
keyPropertyValue = new KeyPropertyValue()
{
KeyProperty = keyProperty,
KeyValue = value
};
return(true);
}
/// <summary>
/// Promote the left and right operand types
/// </summary>
/// <param name="binaryOperatorKind">the operator kind</param>
/// <param name="left">the left operand</param>
/// <param name="right">the right operand</param>
/// <param name="facetsPromotionRules">Promotion rules for type facets.</param>
internal static void PromoteOperandTypes(BinaryOperatorKind binaryOperatorKind, ref SingleValueNode left, ref SingleValueNode right, TypeFacetsPromotionRules facetsPromotionRules)
{
IEdmTypeReference leftType;
IEdmTypeReference rightType;
if (!TypePromotionUtils.PromoteOperandTypes(binaryOperatorKind, left, right, out leftType, out rightType, facetsPromotionRules))
{
string leftTypeName = left.TypeReference == null ? "<null>" : left.TypeReference.FullName();
string rightTypeName = right.TypeReference == null ? "<null>" : right.TypeReference.FullName();
throw new ODataException(ODataErrorStrings.MetadataBinder_IncompatibleOperandsError(leftTypeName, rightTypeName, binaryOperatorKind));
}
left = MetadataBindingUtils.ConvertToTypeIfNeeded(left, leftType);
right = MetadataBindingUtils.ConvertToTypeIfNeeded(right, rightType);
}