public Task <ServerResponse> ProcessRequest(ServerRequest request)
{
string collectionName = request.Route.Parameters["collectionName"];
DataCollection collection = _dataSpace.GetCollection(collectionName);
if (collection == null)
{
return(Deferred.Create <ServerResponse>(ServerResponse.NotFound).Task);
}
DataRequest dataRequest = CreateDataRequest(request, collection);
if ((dataRequest == null) || (collection.SupportsRequest(dataRequest) == false))
{
return(Deferred.Create <ServerResponse>(ServerResponse.MethodNotAllowed).Task);
}
if ((dataRequest.Operation != DataOperation.Query) &&
String.IsNullOrEmpty(dataRequest.Query.ID))
{
ServerResponse response = ServerResponse.CreateRequestError("Missing id parameter.");
return(Deferred.Create <ServerResponse>(response).Task);
}
if ((dataRequest.Operation == DataOperation.Insert) ||
(dataRequest.Operation == DataOperation.Update) ||
(dataRequest.Operation == DataOperation.Merge))
{
Deferred <ServerResponse> deferred = Deferred.Create <ServerResponse>();
request.GetData().ContinueWith(delegate(Task <object> dataTask) {
if (dataTask.Status == TaskStatus.Failed)
{
deferred.Reject(dataTask.Error);
return;
}
Task <ServerResponse> executeTask = null;
try {
dataRequest.Item = (Dictionary <string, object>)dataTask.Result;
executeTask = ExecuteRequest(collection, dataRequest);
}
catch (Exception e) {
deferred.Resolve(ServerResponse.CreateServerError(e.Message));
return;
}
executeTask.ContinueWith(delegate(Task <ServerResponse> t) {
if (t.Status == TaskStatus.Done)
{
deferred.Resolve(t.Result);
}
else
{
deferred.Resolve(ServerResponse.CreateServerError(t.Error.Message));
}
});
});
return(deferred.Task);
}
else
{
return(ExecuteRequest(collection, dataRequest));
}
}