Fixed bug where addObject task doesn't return response

tasks.coffee

@@ -221,7 +221,9 @@ this.addObject = (task, methodResponse, callback) ->
       callback(null, STATUS_STARTED, {methodRequest : {type : 'AddObject', objectName : "#{task.objectName}."}})
       return
 
-  if task.subtask.name is 'getParameterNames'
+  subtask = () =>
+    switch task.subtask.name
+      when 'getParameterNames'
         this.getParameterNames(task.subtask, methodResponse, (err, status, cwmpResponse, deviceUpdates) =>
           common.extend(allDeviceUpdates, deviceUpdates)
           if deviceUpdates and deviceUpdates.parameterNames
@@ -230,13 +232,13 @@ this.addObject = (task, methodResponse, callback) ->
 
           if status is STATUS_FINISHED
             task.subtask = {name : 'getParameterValues', parameterNames : task.parameterNames}
+            subtask()
           else if status is STATUS_STARTED
             callback(err, STATUS_STARTED, cwmpResponse, allDeviceUpdates)
           else
             throw Error('Unexpected subtask status')
         )
-
-  if task.subtask.name is 'getParameterValues'
+      when 'getParameterValues'
         this.getParameterValues(task.subtask, methodResponse, (err, status, cwmpResponse, deviceUpdates) =>
           common.extend(allDeviceUpdates, deviceUpdates)
           if deviceUpdates and deviceUpdates.parameterValues
@@ -253,15 +255,16 @@ this.addObject = (task, methodResponse, callback) ->
             methodResponse = {parameterList : {}}
           if status is STATUS_FINISHED and task.appliedParameterValues.length > 0
             task.subtask = {name : 'setParameterValues', parameterValues : task.appliedParameterValues}
+            subtask()
           else
             callback(err, status, cwmpResponse, allDeviceUpdates)
         )
-
-  if task.subtask.name is 'setParameterValues'
+      when 'setParameterValues'
         this.setParameterValues(task.subtask, methodResponse, (err, status, cwmpResponse, deviceUpdates) =>
           common.extend(allDeviceUpdates, deviceUpdates)
           callback(err, status, cwmpResponse, allDeviceUpdates)
         )
+  subtask()
 
 
 this.deleteObject = (task, methodResponse, callback) ->