private ParameterInformation CreateParameterInfo(
Type parameterType,
IEnumerable <Attribute> attributes,
string parameterName,
IBinderMetadata binderMetadata)
{
var metadataProtoType = CreateMetadataPrototype(attributes: attributes,
containerType: null,
modelType: parameterType,
propertyName: parameterName);
if (binderMetadata != null)
{
metadataProtoType.BinderMetadata = binderMetadata;
}
var nameProvider = binderMetadata as IModelNameProvider;
if (nameProvider != null && nameProvider.Name != null)
{
metadataProtoType.ModelName = nameProvider.Name;
}
return(new ParameterInformation
{
Prototype = metadataProtoType
});
}
private ModelMetadata GetMetadataForParameterCore(Func <object> modelAccessor,
string parameterName,
ParameterInfo parameter,
IBinderMetadata binderMetadata)
{
var parameterInfo =
CreateParameterInfo(parameter.ParameterType,
parameter.GetCustomAttributes(),
parameterName,
binderMetadata);
return(CreateMetadataFromPrototype(parameterInfo.Prototype, modelAccessor));
}
private void UpdateParameterMetadata(ModelMetadata metadata, IBinderMetadata binderMetadata)
{
if (binderMetadata != null)
{
metadata.BinderMetadata = binderMetadata;
}
var nameProvider = binderMetadata as IModelNameProvider;
if (nameProvider != null && nameProvider.Name != null)
{
metadata.BinderModelName = nameProvider.Name;
}
}
public ModelMetadata GetMetadataForParameter(
Func <object> modelAccessor,
[NotNull] MethodInfo methodInfo,
[NotNull] string parameterName,
IBinderMetadata binderMetadata)
{
var parameter = methodInfo.GetParameters().FirstOrDefault(
param => StringComparer.Ordinal.Equals(param.Name, parameterName));
if (parameter == null)
{
var message = Resources.FormatCommon_ParameterNotFound(parameterName);
throw new ArgumentException(message, nameof(parameterName));
}
return(GetMetadataForParameterCore(modelAccessor, parameterName, parameter, binderMetadata));
}