/// <summary>
/// Tries to get the result of calling <see cref="IValuedNode.AsBoolean()">AsBoolean()</see> on a node throwing an error if the node is null.
/// </summary>
/// <param name="n">Node.</param>
/// <exception cref="RdfQueryException">Thrown if the input is null of the specific valued node cannot be cast to a boolean.</exception>
/// <returns></returns>
public static bool AsSafeBoolean(this IValuedNode n)
{
if (n == null)
{
throw new RdfQueryException("Cannot cast a null to a boolean");
}
return(n.AsBoolean());
}
private static object GetPrimitiveValue(IValuedNode valuedNode, IEdmPrimitiveType targetType, bool asNullable)
{
// TODO: Some sort of cast to nullable when necessary
switch (targetType.PrimitiveKind)
{
case EdmPrimitiveTypeKind.Boolean:
return(valuedNode.AsBoolean());
case EdmPrimitiveTypeKind.Byte:
return((byte)valuedNode.AsInteger());
case EdmPrimitiveTypeKind.DateTime:
return(valuedNode.AsDateTime());
case EdmPrimitiveTypeKind.Decimal:
return(valuedNode.AsDecimal());
case EdmPrimitiveTypeKind.Double:
return(valuedNode.AsDouble());
case EdmPrimitiveTypeKind.Int16:
return((Int16)valuedNode.AsInteger());
case EdmPrimitiveTypeKind.Int32:
return((Int32)valuedNode.AsInteger());
case EdmPrimitiveTypeKind.Int64:
return(valuedNode.AsInteger());
case EdmPrimitiveTypeKind.String:
return(valuedNode.AsString());
case EdmPrimitiveTypeKind.DateTimeOffset:
return(valuedNode.AsDateTime());
default:
throw new NotSupportedException(
String.Format("Support for primitive type {0} has not been implemented yet",
targetType.PrimitiveKind));
}
}
private static object GetPrimitiveValue(IValuedNode valuedNode, IEdmPrimitiveType targetType, bool asNullable)
{
// TODO: Some sort of cast to nullable when necessary
switch (targetType.PrimitiveKind)
{
case EdmPrimitiveTypeKind.Boolean:
return valuedNode.AsBoolean();
case EdmPrimitiveTypeKind.Byte:
return (byte) valuedNode.AsInteger();
case EdmPrimitiveTypeKind.DateTime:
return valuedNode.AsDateTime();
case EdmPrimitiveTypeKind.Decimal:
return valuedNode.AsDecimal();
case EdmPrimitiveTypeKind.Double:
return valuedNode.AsDouble();
case EdmPrimitiveTypeKind.Int16:
return (Int16) valuedNode.AsInteger();
case EdmPrimitiveTypeKind.Int32:
return (Int32) valuedNode.AsInteger();
case EdmPrimitiveTypeKind.Int64:
return valuedNode.AsInteger();
case EdmPrimitiveTypeKind.String:
return valuedNode.AsString();
case EdmPrimitiveTypeKind.DateTimeOffset:
return valuedNode.AsDateTime();
default:
throw new NotSupportedException(
String.Format("Support for primitive type {0} has not been implemented yet",
targetType.PrimitiveKind));
}
}