Custom OData Action throws Error

[dullnigAlex]

I have this unbound action configured: 

{
  "name": "DeleteWorkspacesIfEmpty",
  "importName": "DeleteWorkspacesIfEmpty",
  "description": "Delete all Workspaces if empty",
  "parameters": [
    {
      "name": "workspaces",
      "type": "String",
      "isNullable": false,
      "isCollection": true
    }
  ],
  "returnType": {
    "type": "String",
    "isNullable": false,
    "isCollection": false
  }
}

With this JS:

function action_DeleteWorkspacesIfEmpty(data, params) {
    var WorkspaceFunction = Java.type('at.techsoft.twice.WorkspaceFunction');
    var workspaceFunction = new WorkspaceFunction();
    workspaceFunction.deleteWorkspacesIfEmpty(data, params);
}

And this Java Code:

public ActionResult deleteWorkspacesIfEmpty(ActionProcessorData data, Map<String, Parameter> params) throws ODataApplicationException, JSONException {
    Object obj = params.get("workspaces").getValue();
    List<String> deletedWorkspaces = new ArrayList<>();
    EntityCollection entityCollection = new EntityCollection();
    if (obj instanceof ArrayList) {
        List<String> workspaces = (List<String>) obj;
        for(String workspace : workspaces) {
            EPMWorkspace epmWorkspace = QueryHelper.findWorkspace(workspace);
            if (epmWorkspace != null) {
                try {
                    if (EPMWorkspaceHelper.manager.getObjectsInWorkspace(epmWorkspace, Persistable.class).size() == 0) {
                        PersistenceHelper.manager.delete(epmWorkspace);
                        deletedWorkspaces.add(workspace);
                    }
                } catch (WTException e) {
                    throw new BadRequestException(e);
                }
            }
        }
    }
    ActionResult actionResult = new ActionResult();
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("deleted", deletedWorkspaces);
    EntityAttribute retEntity = new EntityAttribute("Edm.String", null, PropertyValueType.PRIMITIVE, jsonObject.toString());
    actionResult.setReturnedObject(retEntity);
    return actionResult;
}

The Problem is when I request this Action, the response is:

{
"error": {
"code": "NOT_SUPPORTED",
"message": "The feature being exercised is not supported"
}
}

And in the log file the Error is:

2020-08-14 09:56:24,281 ERROR [ajp-nio-127.0.0.1-8010-exec-5] com.ptc.odata.core.entity.processor.ActionProviderProcessor wtadmin - Action implementation must return a ActionResult: org.apache.olingo.commons.core.edm.EdmActionImpl@25896e4
2020-08-14 09:56:24,297 ERROR [ajp-nio-127.0.0.1-8010-exec-5] wt.servlet.ServletRequestMonitor.request wtadmin - 2020-08-14 09:55:41.496 +0200, 4eihaj13;kdtx4n9o;12640;ht9eo6;1803, wtadmin, 10.2.150.48, /Windchill/servlet/odata/v1/TWICE/DeleteWorkspacesIfEmpty, -, POST, 501, 0.015625, 42.7960182

Does anyone know what I am doing wrong?

[dullnigAlex · Accepted solution]

I forgot a return in my JavaScript part.

[sidsinha16]

Wow Good to know:) . can you please post your working code here please.

[sidsinha16]

Also, Pl tell that "How did you use 

"name": "DeleteWorkspacesIfEmpty",
  "importName": "DeleteWorkspacesIfEmpty",

this Import Name.

I am using the same code as yours and getting error :

"message": "Cannot find EntitySet, Singleton, ActionImport or FunctionImport with name 'GetParts'."

Pl help.

[bjoyce]

I got a similar error, it was due to making a GET request instead of POST.