Object CoerceDocumentValue(__Type argumentType, String argumentName, GraphQLParser.ValueContext val)
{
try
{
if (val is GraphQLParser.StringValueContext)
{
var typedVal = Trim(((GraphQLParser.StringValueContext)val).GetText());
if (argumentType.kind == __TypeKind.ENUM)
{
return(Enum.Parse(argumentType.dotNetType, typedVal));
}
else if (argumentType.kind == __TypeKind.SCALAR)
{
if (TypeCheck.IsNumeric(argumentType.dotNetType))
{
Error($"Cannot convert string to numeric value", val);
}
else if (TypeCheck.IsString(argumentType.dotNetType))
{
return(typedVal);
}
else if (TypeCheck.IsDateTime(argumentType.dotNetType))
{
return(DateTime.Parse(typedVal));
}
}
}
else if (val is GraphQLParser.BooleanValueContext)
{
var typedVal = (val.GetText() == "true") ? true : false;
if (argumentType.kind == __TypeKind.SCALAR)
{
if (TypeCheck.IsBoolean(argumentType.dotNetType))
{
return(typedVal);
}
else if (TypeCheck.IsNumeric(argumentType.dotNetType))
{
if (typedVal)
{
return(1);
}
return(0);
}
else if (TypeCheck.IsString(argumentType.dotNetType))
{
if (typedVal)
{
return("true");
}
return(false);
}
}
}
else if (val is GraphQLParser.NumberValueContext)
{
var typedValue = Convert.ToDouble(val.GetText());
if (TypeCheck.IsNumeric(argumentType.dotNetType))
{
if (argumentType.dotNetType == typeof(int))
{
return((int)typedValue);
}
else if (argumentType.dotNetType == typeof(short))
{
return((short)typedValue);
}
else if (argumentType.dotNetType == typeof(uint))
{
return((uint)typedValue);
}
else if (argumentType.dotNetType == typeof(uint))
{
return((uint)typedValue);
}
else if (argumentType.dotNetType == typeof(float))
{
return((float)typedValue);
}
else
{
return(typedValue);
}
}
else if (TypeCheck.IsString(argumentType.dotNetType))
{
return(typedValue.ToString());
}
else if (TypeCheck.IsBoolean(argumentType.dotNetType))
{
if (typedValue == 0.0)
{
return(false);
}
return(true);
}
}
else if (val is GraphQLParser.ObjectValueContext)
{
var jsonObj = GraphQlJson.FromJSonString(val.GetText(), argumentType.dotNetType, true);
return(jsonObj);
}
else if (val is GraphQLParser.EnumValueContext)
{
return(Enum.Parse(argumentType.dotNetType, val.GetText()));
}
else if (val is GraphQLParser.ArrayValueContext)
{
List <Object> objects = new List <object>();
foreach (var c in ((GraphQLParser.ArrayValueContext)val).array().value())
{
objects.Add(CoerceDocumentValue(argumentType.ofType, argumentName, c));
}
return(objects);
}
Error(
$"Encountered unexpected DotNetType when coercing value - {argumentName} - {argumentType.dotNetType.Name}",
val);
return(0);
}
catch (Exception e)
{
Error(
$"Error - '{e.Message}' trying to coerce '{argumentName}' of type '{val.GetType().Name}' to '{argumentType.kind}' with DotNetType: '{argumentType.dotNetType.Name}' ",
val);
return(0);
}
}
public __Type(Type t, Dictionary <Type, __Type> resolver, GraphQlCustomiseSchema customise, bool isInputType = false)
{
this.resolver = resolver;
this.customiseSchema = customise;
dotNetType = t;
if (resolver.ContainsKey(t) == false)
{
resolver[t] = this;
}
if (TypeCheck.IsNumeric(t) || TypeCheck.IsString(t) || TypeCheck.IsDateTime(t) || TypeCheck.IsBoolean(t))
{
ScalarType();
}
else if (TypeCheck.IsEnum(t))
{
EnumType();
}
else if (TypeCheck.IsEnumerableType(t))
{
ListType();
}
else if (TypeCheck.IsClass(t) && isInputType)
{
InputObjectType();
}
else if (TypeCheck.IsClass(t))
{
ObjectOrInterfaceType(__TypeKind.OBJECT);
}
else if (t.IsInterface)
{
ObjectOrInterfaceType(__TypeKind.INTERFACE);
}
else if (TypeCheck.IsValueType(t))
{
throw new Exception($"Unexpected value type = {t.Name}");
}
else
{
throw new Exception($"Unexpected type = {t.Name}");
}
}
