internal static object[] BindParameter(IDictionary<string, object> environment, ILightNodeOptions options, IOperationCoordinator coordinator, ValueProvider valueProvider, ParameterInfoSlim[] arguments)
{
var methodParameters = new object[arguments.Length];
for (int i = 0; i < arguments.Length; i++)
{
var item = arguments[i];
var _values = valueProvider.GetValue(item.Name);
var value = _values as string;
var values = _values as List<string>;
var isEmpty = _values == null;
var byteArray = _values as byte[];
// TODO:Experimental support
if (byteArray != null && item.ParameterTypeIsArray && item.ParameterType == typeof(byte[]))
{
methodParameters[i] = byteArray;
continue;
}
if (isEmpty && !item.ParameterTypeIsArray)
{
if (item.IsOptional)
{
methodParameters[i] = item.DefaultValue;
continue;
}
else if ((!item.ParameterTypeIsString || options.ParameterStringImplicitNullAsDefault) && (item.ParameterTypeIsClass || item.ParameterTypeIsNullable))
{
methodParameters[i] = null;
continue;
}
else
{
coordinator.OnProcessInterrupt(options, environment, InterruptReason.ParameterBindMissing, "Lack of Parameter:" + item.Name);
options.Logger.ParameterBindMissing(OperationMissingKind.LackOfParameter, item.Name);
if (options.OperationMissingHandlingPolicy == OperationMissingHandlingPolicy.ThrowException)
{
throw new ParameterMissingException(OperationMissingKind.LackOfParameter, item.Name);
}
else
{
environment.EmitBadRequest();
if (options.OperationMissingHandlingPolicy == OperationMissingHandlingPolicy.ReturnErrorStatusCodeIncludeErrorDetails)
{
environment.EmitStringMessage("Lack of Parameter:" + item.Name);
}
return null;
}
}
}
else if (!item.ParameterTypeIsArray)
{
var conv = TypeBinder.GetConverter(item.ParameterType, !options.ParameterEnumAllowsFieldNameParse);
if (conv == null) throw new InvalidOperationException("critical:register code is broken");
object pValue;
if (conv(value ?? values[0], out pValue))
{
methodParameters[i] = pValue;
continue;
}
else if (item.IsOptional)
{
methodParameters[i] = item.DefaultValue;
continue;
}
else if ((!item.ParameterTypeIsString || options.ParameterStringImplicitNullAsDefault) && (item.ParameterTypeIsClass || item.ParameterTypeIsNullable))
{
methodParameters[i] = null;
continue;
}
else
{
coordinator.OnProcessInterrupt(options, environment, InterruptReason.ParameterBindMissing, "Mismatch ParameterType:" + item.Name);
options.Logger.ParameterBindMissing(OperationMissingKind.MissmatchParameterType, item.Name);
if (options.OperationMissingHandlingPolicy == OperationMissingHandlingPolicy.ThrowException)
{
throw new ParameterMissingException(OperationMissingKind.MissmatchParameterType, item.Name);
}
else
{
environment.EmitBadRequest();
if (options.OperationMissingHandlingPolicy == OperationMissingHandlingPolicy.ReturnErrorStatusCodeIncludeErrorDetails)
{
environment.EmitStringMessage("Mismatch ParameterType:" + item.Name);
}
return null;
}
}
}
var arrayConv = TypeBinder.GetArrayConverter(item.ParameterType, !options.ParameterEnumAllowsFieldNameParse);
if (arrayConv == null) throw new InvalidOperationException("critical:register code is broken");
methodParameters[i] = arrayConv((values != null) ? values : (value != null) ? new[] { value } : (IList<string>)new string[0]);
continue;
}
return methodParameters;
}