Rally Software

I'm trying to collect the project hierarchy into a single, colon separated string . (parent1:parent2:) upto the root project in the subscription.  I cannot determine the call pattern to do this.  

private static void getProjHierarchyForFeature(RallyRestApi restApi, QueryResponse featureSet,

            Time2Market time2market, Integer featureInSet) {

        String tempHierarchy = "";

        JsonArray tempFeatures = featureSet.getResults();

        //time2market.setProjectName(projectName);

        try {

            JsonObject obj1 = tempFeatures.get(featureInSet).getAsJsonObject();

            JsonObject proj = obj1.get("Project").getAsJsonObject();

            QueryRequest projQuery = new QueryRequest("HierarchicalRequirement");

            projQuery.setQueryFilter(new QueryFilter("ObjectID", "=", proj.get("_refObjectUUID").getAsString()));

            projQuery.setFetch(new Fetch("_ref", "_refObjectUUID", "_refObjectName"));

            projQuery.setStart(1);

            projQuery.setPageSize(1);

            QueryResponse projResponse = restApi.query(projQuery);

            if (projResponse.wasSuccessful()) {

                JsonArray tempProj = projResponse.getResults();

                // Here we have the project object, now process Parents...

                Boolean moreParents = true;

                while (moreParents) {

                    QueryRequest parentQuery = new QueryRequest("HierarchicalRequirment");

                    //projQuery.setFetch(new Fetch("_ref", "_refObjectUUID", "_refObjectName"));

                    QueryResponse parentResponse = restApi.query(parentQuery);

                    if (parentResponse.wasSuccessful()) {

                        System.out.println ("proj Response... " + parentResponse.toString());

                        JsonArray projParent = parentResponse.getResults();

                        tempHierarchy.concat(projParent.get(0).getAsString());

                        JsonArray tempParent = parentResponse.getResults();

                        proj = tempParent.getAsJsonObject();

                    } else {

                        moreParents = false;

                    }

                }

            } else {

                System.err.println("The following errors occurred: ");

                for (String err : projResponse.getErrors()) {

                    System.err.println("\t" + err);

                }

                throw new java.lang.Error("Rally API Call Error Occurred");

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

What output are you getting?

I haven't tried your code in my environment but I feel like that your parentQuery QueryRequest should be to Project. 

(Though, if it is supposed to be HierarchicalRequirement, I did notice a typo on that line)

Empty project collection is the result.

I got a recommendation from Stack Exchange also.  The recommendation was to use GetRequest rather than QuerryRequest as the result is a Singleton.  The process worked with:

GetRequest projRequest = new GetRequest("/project/" + parentUUID);

Also, David was correct,  to go after /project/ rather than a HierarchicalRequirement.