/// <summary>
/// Creates all of the spatial functions
/// </summary>
/// <param name="functions">Dictionary of functions to add to.</param>
internal static void CreateSpatialFunctions(IDictionary <string, FunctionSignatureWithReturnType[]> functions)
{
DebugUtils.CheckNoExternalCallers();
// double geo.distance(geographyPoint, geographyPoint)
// double geo.distance(geometryPoint, geometryPoint)
FunctionSignatureWithReturnType[] signatures = new FunctionSignatureWithReturnType[]
{
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPoint, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPoint, true)),
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPoint, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPoint, true))
};
functions.Add("geo.distance", signatures);
// bool geo.intersects(geometry.Point, geometry.Polygon)
// bool geo.intersects(geometry.Polygon, geomtery.Point)
// bool geo.intersects(geography.Point, geography.Polygon)
// bool geo.intersects(geography.Polygon, geography.Point)
signatures = new FunctionSignatureWithReturnType[]
{
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPoint, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPolygon, true)),
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPolygon, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryPoint, true)),
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPoint, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPolygon, true)),
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPolygon, true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyPoint, true))
};
functions.Add("geo.intersects", signatures);
// double geo.length(geometryLineString)
// double geo.length(geographyLineString)
signatures = new FunctionSignatureWithReturnType[]
{
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeometryLineString, true)),
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(true),
EdmCoreModel.Instance.GetSpatial(EdmPrimitiveTypeKind.GeographyLineString, true)),
};
functions.Add("geo.length", signatures);
}
/// <summary>
/// Builds an array of signatures for math functions.
/// </summary>
/// <returns>The array of signatures for math functions.</returns>
private static FunctionSignatureWithReturnType[] CreateMathFunctionSignatureArray()
{
FunctionSignatureWithReturnType doubleSignature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(false),
EdmCoreModel.Instance.GetDouble(false));
FunctionSignatureWithReturnType nullableDoubleSignature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDouble(false),
EdmCoreModel.Instance.GetDouble(true));
FunctionSignatureWithReturnType decimalSignature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDecimal(false),
EdmCoreModel.Instance.GetDecimal(false));
FunctionSignatureWithReturnType nullableDecimalSignature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetDecimal(false),
EdmCoreModel.Instance.GetDecimal(true));
return(new FunctionSignatureWithReturnType[] { doubleSignature, decimalSignature, nullableDoubleSignature, nullableDecimalSignature });
}
/// <summary>
/// Builds an array of signatures for date time functions.
/// </summary>
/// <returns>The array of signatures for a date time functions.</returns>
private static FunctionSignatureWithReturnType[] CreateDateTimeFunctionSignatureArray()
{
FunctionSignatureWithReturnType dateTimeNonNullable = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetTemporal(EdmPrimitiveTypeKind.DateTime, false));
FunctionSignatureWithReturnType dateTimeNullable = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetTemporal(EdmPrimitiveTypeKind.DateTime, true));
FunctionSignatureWithReturnType dateTimeOffsetNonNullable = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetTemporal(EdmPrimitiveTypeKind.DateTimeOffset, false));
FunctionSignatureWithReturnType dateTimeOffsetNullable = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetTemporal(EdmPrimitiveTypeKind.DateTimeOffset, true));
return(new[] { dateTimeNonNullable, dateTimeNullable, dateTimeOffsetNonNullable, dateTimeOffsetNullable });
}
/// <summary>
/// Finds the signature that best matches the arguments
/// </summary>
/// <param name="functionName">The name of the function</param>
/// <param name="argumentTypes">The types of the arguments</param>
/// <param name="signatures">The signatures to match against</param>
/// <returns>Returns the matching signature or throws</returns>
internal static FunctionSignatureWithReturnType MatchSignatureToBuiltInFunction(string functionName, IEdmTypeReference[] argumentTypes, FunctionSignatureWithReturnType[] signatures)
{
DebugUtils.CheckNoExternalCallers();
FunctionSignatureWithReturnType signature;
// Handle the cases where we don't have type information (null literal, open properties) for ANY of the arguments
int argumentCount = argumentTypes.Length;
if (argumentTypes.All(a => a == null) && argumentCount > 0)
{
// we specifically want to find just the first function that matches the number of arguments, we don't care about
// ambiguity here because we're already in an ambiguous case where we don't know what kind of types
// those arguments are.
signature = signatures.FirstOrDefault(candidateFunction => candidateFunction.ArgumentTypes.Count() == argumentCount);
if (signature == null)
{
throw new ODataException(ODataErrorStrings.FunctionCallBinder_CannotFindASuitableOverload(functionName, argumentTypes.Count()));
}
else
{
// in this case we can't assert the return type, we can only assert that a function exists... so
// we need to set the return type to null.
signature = new FunctionSignatureWithReturnType(null, signature.ArgumentTypes);
}
}
else
{
signature = TypePromotionUtils.FindBestFunctionSignature(signatures, argumentTypes);
if (signature == null)
{
throw new ODataException(ODataErrorStrings.MetadataBinder_NoApplicableFunctionFound(
functionName,
BuiltInFunctions.BuildFunctionSignatureListDescription(functionName, signatures)));
}
}
return(signature);
}
/// <summary>
/// Creates all string functions.
/// </summary>
/// <param name="functions">Dictionary of functions to add to.</param>
private static void CreateStringFunctions(IDictionary <string, FunctionSignatureWithReturnType[]> functions)
{
FunctionSignatureWithReturnType signature;
FunctionSignatureWithReturnType[] signatures;
// bool endswith(string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(false),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("endswith", new FunctionSignatureWithReturnType[] { signature });
// int indexof(string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("indexof", new FunctionSignatureWithReturnType[] { signature });
// string replace(string, string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("replace", new FunctionSignatureWithReturnType[] { signature });
// bool startswith(string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(false),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("startswith", new FunctionSignatureWithReturnType[] { signature });
// string tolower(string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("tolower", new FunctionSignatureWithReturnType[] { signature });
// string toupper(string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("toupper", new FunctionSignatureWithReturnType[] { signature });
// string trim(string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("trim", new FunctionSignatureWithReturnType[] { signature });
signatures = new FunctionSignatureWithReturnType[]
{
// string substring(string, int)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(false)),
// string substring(string, int?)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(true)),
// string substring(string, int, int)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetInt32(false)),
// string substring(string, int?, int)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(true),
EdmCoreModel.Instance.GetInt32(false)),
// string substring(string, int, int?)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetInt32(true)),
// string substring(string, int?, int?)
new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetInt32(true),
EdmCoreModel.Instance.GetInt32(true)),
};
functions.Add("substring", signatures);
// bool substringof(string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetBoolean(false),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("substringof", new FunctionSignatureWithReturnType[] { signature });
// string concat(string, string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true),
EdmCoreModel.Instance.GetString(true));
functions.Add("concat", new FunctionSignatureWithReturnType[] { signature });
// int length(string)
signature = new FunctionSignatureWithReturnType(
EdmCoreModel.Instance.GetInt32(false),
EdmCoreModel.Instance.GetString(true));
functions.Add("length", new FunctionSignatureWithReturnType[] { signature });
}
