private static string GetRootElementName(ODataPath path)
{
if (path != null)
{
ODataPathSegment lastSegment = path.Segments.LastOrDefault();
if (lastSegment != null)
{
ActionPathSegment actionSegment = lastSegment as ActionPathSegment;
if (actionSegment != null)
{
return(actionSegment.Action.Name);
}
PropertyAccessPathSegment propertyAccessSegment = lastSegment as PropertyAccessPathSegment;
if (propertyAccessSegment != null)
{
return(propertyAccessSegment.Property.Name);
}
}
}
return(null);
}
internal static IEdmFunctionImport GetFunctionImport(ODataDeserializerContext readContext)
{
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
ODataPath path = readContext.Path;
if (path == null)
{
throw new SerializationException(SRResources.ODataPathMissing);
}
ActionPathSegment lastSegment = path.Segments.Last() as ActionPathSegment;
if (lastSegment == null)
{
string message = Error.Format(SRResources.RequestNotActionInvocation, path.ToString());
throw new SerializationException(message);
}
return(lastSegment.Action);
}
/// <summary>
/// Selects the action for OData requests.
/// </summary>
/// <param name="odataPath">The OData path.</param>
/// <param name="controllerContext">The controller context.</param>
/// <param name="actionMap">The action map.</param>
/// <returns>
/// <c>null</c> if the request isn't handled by this convention; otherwise, the name of the selected action
/// </returns>
public override string SelectAction(ODataPath odataPath, HttpControllerContext controllerContext, ILookup <string, HttpActionDescriptor> actionMap)
{
if (odataPath == null)
{
throw Error.ArgumentNull("odataPath");
}
if (controllerContext == null)
{
throw Error.ArgumentNull("controllerContext");
}
if (actionMap == null)
{
throw Error.ArgumentNull("actionMap");
}
if (controllerContext.Request.Method == HttpMethod.Post)
{
if (odataPath.PathTemplate == "~/entityset/key/action" ||
odataPath.PathTemplate == "~/entityset/key/cast/action")
{
ActionPathSegment actionSegment = odataPath.Segments.Last() as ActionPathSegment;
IEdmFunctionImport action = actionSegment.Action;
// The binding parameter is the first parameter by convention
IEdmFunctionParameter bindingParameter = action.Parameters.FirstOrDefault();
if (action.IsBindable && bindingParameter != null)
{
IEdmEntityType bindingParameterType = bindingParameter.Type.Definition as IEdmEntityType;
if (bindingParameterType != null)
{
KeyValuePathSegment keyValueSegment = odataPath.Segments[1] as KeyValuePathSegment;
controllerContext.RouteData.Values.Add(ODataRouteConstants.Key, keyValueSegment.Value);
// e.g. Try ActionOnBindingParameterType first, then fallback on Action action name
string actionOnBindingTypeActionName = action.Name + "On" + bindingParameterType.Name;
return(actionMap.Contains(actionOnBindingTypeActionName) ? actionOnBindingTypeActionName : action.Name);
}
}
}
else if (odataPath.PathTemplate == "~/entityset/action" ||
odataPath.PathTemplate == "~/entityset/cast/action")
{
ActionPathSegment actionSegment = odataPath.Segments.Last() as ActionPathSegment;
IEdmFunctionImport action = actionSegment.Action;
// The binding parameter is the first parameter by convention
IEdmFunctionParameter bindingParameter = action.Parameters.FirstOrDefault();
if (action.IsBindable && bindingParameter != null)
{
IEdmCollectionType bindingParameterType = bindingParameter.Type.Definition as IEdmCollectionType;
if (bindingParameterType != null)
{
// e.g. Try ActionOnBindingParameterType first, then fallback on Action action name
IEdmEntityType elementType = bindingParameterType.ElementType.Definition as IEdmEntityType;
string actionOnBindingTypeActionName = action.Name + "OnCollectionOf" + elementType.Name;
return(actionMap.Contains(actionOnBindingTypeActionName) ? actionOnBindingTypeActionName : action.Name);
}
}
}
}
return(null);
}