/// <summary>
/// Selects the controller for OData requests.
/// </summary>
/// <param name="odataPath">The OData path.</param>
/// <param name="request">The request.</param>
/// <returns>
/// <c>null</c> if the request isn't handled by this convention; otherwise, the name of the selected controller
/// </returns>
public virtual string SelectController(ODataPath odataPath, HttpRequestMessage request)
{
if (odataPath == null)
{
throw Error.ArgumentNull("odataPath");
}
if (request == null)
{
throw Error.ArgumentNull("request");
}
// entity set
EntitySetPathSegment entitySetSegment = odataPath.Segments.FirstOrDefault() as EntitySetPathSegment;
if (entitySetSegment != null)
{
return(entitySetSegment.EntitySetName);
}
// singleton
SingletonPathSegment singletonSegment = odataPath.Segments.FirstOrDefault() as SingletonPathSegment;
if (singletonSegment != null)
{
return(singletonSegment.SingletonName);
}
return(null);
}
/// <inheritdoc/>
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 (odataPath.PathTemplate == "~/singleton")
{
SingletonPathSegment singletonSegment = (SingletonPathSegment)odataPath.Segments[0];
string httpMethodName = GetActionNamePrefix(controllerContext.Request.Method);
if (httpMethodName != null)
{
// e.g. Try Get{SingletonName} first, then fallback on Get action name
return(actionMap.FindMatchingAction(
httpMethodName + singletonSegment.Singleton.Name,
httpMethodName));
}
}
else if (odataPath.PathTemplate == "~/singleton/cast")
{
SingletonPathSegment singletonSegment = (SingletonPathSegment)odataPath.Segments[0];
IEdmEntityType entityType = (IEdmEntityType)odataPath.EdmType;
string httpMethodName = GetActionNamePrefix(controllerContext.Request.Method);
if (httpMethodName != null)
{
// e.g. Try Get{SingletonName}From{EntityTypeName} first, then fallback on Get action name
return(actionMap.FindMatchingAction(
httpMethodName + singletonSegment.Singleton.Name + "From" + entityType.Name,
httpMethodName + "From" + entityType.Name));
}
}
return(null);
}
