move over onos service from xos repo
diff --git a/xos/api/tenant/onos/app.py b/xos/api/tenant/onos/app.py
new file mode 100644
index 0000000..481057d
--- /dev/null
+++ b/xos/api/tenant/onos/app.py
@@ -0,0 +1,91 @@
+from rest_framework.decorators import api_view
+from rest_framework.response import Response
+from rest_framework.reverse import reverse
+from rest_framework import serializers
+from rest_framework import generics
+from rest_framework import status
+from core.models import *
+from django.forms import widgets
+from services.onos.models import ONOSService, ONOSApp
+from xos.apibase import XOSListCreateAPIView, XOSRetrieveUpdateDestroyAPIView, XOSPermissionDenied
+from api.xosapi_helpers import PlusModelSerializer, XOSViewSet, ReadOnlyField
+
+def get_default_onos_service():
+    onos_services = ONOSService.get_service_objects().all()
+    if onos_services:
+        return onos_services[0].id
+    return None
+
+class ONOSAppSerializer(PlusModelSerializer):
+    id = ReadOnlyField()
+    name = serializers.CharField()
+    dependencies = serializers.CharField()
+
+    humanReadableName = serializers.SerializerMethodField("getHumanReadableName")
+    class Meta:
+        model = ONOSApp
+        fields = ('humanReadableName', 'id', 'name', 'dependencies')
+
+    def getHumanReadableName(self, obj):
+        return obj.__unicode__()
+
+class TenantAttributeSerializer(serializers.Serializer):
+    id = ReadOnlyField()
+    name = serializers.CharField(required=False)
+    value = serializers.CharField(required=False)
+
+class ONOSAppViewSet(XOSViewSet):
+    base_name = "app"
+    method_name = "app"
+    method_kind = "viewset"
+    queryset = ONOSApp.get_tenant_objects().all()
+    serializer_class = ONOSAppSerializer
+
+    custom_serializers = {"set_attribute": TenantAttributeSerializer}
+
+    @classmethod
+    def get_urlpatterns(self, api_path="^"):
+        patterns = super(ONOSAppViewSet, self).get_urlpatterns(api_path=api_path)
+
+        patterns.append( self.detail_url("attributes/$", {"get": "get_attributes", "post": "add_attribute"}, "attributes") )
+        patterns.append( self.detail_url("attributes/(?P<attribute>[0-9]+)/$", {"get": "get_attribute", "put": "set_attribute", "delete": "delete_attribute"}, "attribute") )
+
+        return patterns
+
+    def get_attributes(self, request, pk=None):
+        app = self.get_object()
+        return Response(TenantAttributeSerializer(app.tenantattributes.all(), many=True).data)
+
+    def add_attribute(self, request, pk=None):
+        app = self.get_object()
+        ser = TenantAttributeSerializer(data=request.data)
+        ser.is_valid(raise_exception = True)
+        att = TenantAttribute(tenant=app, **ser.validated_data)
+        att.save()
+        return Response(TenantAttributeSerializer(att).data)
+
+    def get_attribute(self, request, pk=None, attribute=None):
+        app = self.get_object()
+        att = TenantAttribute.objects.get(pk=attribute)
+        return Response(TenantAttributeSerializer(att).data)
+
+    def set_attribute(self, request, pk=None, attribute=None):
+        app = self.get_object()
+        att = TenantAttribute.objects.get(pk=attribute)
+        ser = TenantAttributeSerializer(att, data=request.data)
+        ser.is_valid(raise_exception = True)
+        att.name = ser.validated_data.get("name", att.name)
+        att.value = ser.validated_data.get("value", att.value)
+        att.save()
+        return Response(TenantAttributeSerializer(att).data)
+
+    def delete_attribute(self, request, pk=None, attribute=None):
+        att = TenantAttribute.objects.get(pk=attribute)
+        att.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+
+
+
+