/// <summary>
/// Parse string or integer to enum value
/// </summary>
/// <param name="enumType">edm enum type</param>
/// <param name="value">input string value</param>
/// <param name="enumValue">output edm enum value</param>
/// <returns>true if parse succeeds, false if fails</returns>
private static bool TryParseEnum(IEdmEnumType enumType, string value, out ODataEnumValue enumValue)
{
long parsedValue;
bool success = enumType.TryParseEnum(value, true, out parsedValue);
enumValue = null;
if (success)
{
enumValue = new ODataEnumValue(parsedValue.ToString(CultureInfo.InvariantCulture), enumType.FullTypeName());
}
return(success);
}
/// <summary>
/// Parse string or integer to enum value
/// </summary>
/// <param name="enumType">edm enum type</param>
/// <param name="value">input string value</param>
/// <param name="enumValue">output edm enum value</param>
/// <returns>true if parse succeeds, false if fails</returns>
internal static bool TryParseEnum(IEdmEnumType enumType, string value, out ODataEnumValue enumValue)
{
long parsedValue;
bool success = enumType.TryParseEnum(value, true, out parsedValue);
enumValue = null;
if (success)
{
// ODataEnumValue.Value will always be numeric string like '3', '10' instead of 'Cyan', 'Solid,Yellow', etc.
// so user code can easily Enum.Parse() them into CLR value.
enumValue = new ODataEnumValue(parsedValue.ToString(CultureInfo.InvariantCulture), enumType.FullTypeName());
}
return(success);
}
internal static bool TryBindIdentifier(string identifier, IEdmModel model, out QueryNode boundEnum)
{
boundEnum = null;
string text = identifier;
// parse the string, e.g., NS.Color'Green'
// get type information, and also convert Green into an ODataEnumValue
// find the first ', before that, it is namespace.type
int indexOfSingleQuote = text.IndexOf('\'');
if (indexOfSingleQuote < 0)
{
return(false);
}
string namespaceAndType = text.Substring(0, indexOfSingleQuote);
// find the type from edm model
IEdmEnumType enumType = UriEdmHelpers.FindEnumTypeFromModel(model, namespaceAndType);
if (enumType == null)
{
return(false);
}
// now, find out the value
UriPrimitiveTypeParser.TryRemovePrefix(namespaceAndType, ref text);
UriPrimitiveTypeParser.TryRemoveQuotes(ref text);
// parse string or int value to edm enum value
string enumValueString = text;
ODataEnumValue enumValue;
enumType.TryParseEnum(enumValueString, out enumValue);
if (enumValue == null)
{
return(false);
}
// create an enum node, enclosing an odata enum value
EdmEnumTypeReference enumTypeReference = new EdmEnumTypeReference(enumType, false);
boundEnum = new ConstantNode(enumValue, identifier, enumTypeReference);
return(true);
}
/// <summary>
/// Parse string or integer to enum value
/// </summary>
/// <param name="enumType">edm enum type</param>
/// <param name="value">input string value</param>
/// <param name="enumValue">output edm enum value</param>
/// <returns>true if parse succeeds, false if fails</returns>
private static bool TryParseEnum(IEdmEnumType enumType, string value, out ODataEnumValue enumValue)
{
long parsedValue;
bool success = enumType.TryParseEnum(value, true, out parsedValue);
enumValue = null;
if (success)
{
enumValue = new ODataEnumValue(parsedValue.ToString(CultureInfo.InvariantCulture), enumType.FullTypeName());
}
return success;
}
/// <summary>
/// Parse string or integer to enum value
/// </summary>
/// <param name="enumType">edm enum type</param>
/// <param name="value">input string value</param>
/// <param name="enumValue">output edm enum value</param>
/// <returns>true if parse succeeds, false if fails</returns>
internal static bool TryParseEnum(IEdmEnumType enumType, string value, out ODataEnumValue enumValue)
{
long parsedValue;
bool success = enumType.TryParseEnum(value, true, out parsedValue);
enumValue = null;
if (success)
{
// ODataEnumValue.Value will always be numeric string like '3', '10' instead of 'Cyan', 'Solid,Yellow', etc.
// so user code can easily Enum.Parse() them into CLR value.
enumValue = new ODataEnumValue(parsedValue.ToString(CultureInfo.InvariantCulture), enumType.ODataFullName());
}
return success;
}