add callback function for setValue msg

ml/thing.py

@@ -97,6 +97,7 @@ def __init__(
         self.__ditto_features = {}
         # ??? Is this property necessary? Only used as return value in _getValue()
         self.__resGetValue = list()
+        self.__source_obj = None
         if attributes:
             self.__name = attributes.get("name", "")
 
@@ -756,12 +757,14 @@ def on_set_value_request(self, msg):
         reply_msg_uuid = "s3i:" + str(uuid.uuid4())
 
         try:
-            __log = "[S3I]: Search the given attribute path: {}".format(attribute_path)
+            __log = "[S3I]: Search for the given attribute path: {}".format(attribute_path)
             APP_LOGGER.info(__log)
-            self._uriToData(attribute_path)
-            self.dt_json[attribute_path] = new_value
-            result = True
-        except KeyError:
+            old_value = self._uriToData(attribute_path)
+            ins = self._uriToIns(attribute_path)
+            APP_LOGGER.info("[S3I]: Change value from {} to {}".format(old_value, new_value))
+            result = self._set_value_req(ins, new_value, attribute_path)
+
+        except:
             __log = "[S3I]: Invalid attribute path"
             APP_LOGGER.critical(__log)
             result = False
@@ -786,6 +789,65 @@ def on_set_value_request(self, msg):
                 __log = "[S3I[Broker]: " + res.text
                 APP_LOGGER.info(__log)
 
+    def _set_value_req(self, ins, new_value, attribute_path):
+        if not isinstance(new_value, dict):
+            attr_list = attribute_path.split("/")
+            if attr_list.__len__() <= 2:
+                APP_LOGGER.info("Not allowed to set attribute {}".format(attribute_path))
+                return False
+            else:
+                if hasattr(ins, attr_list[attr_list.__len__() - 1]):
+                    setattr(ins, attr_list[attr_list.__len__() - 1], new_value)
+                    return True
+                APP_LOGGER.info("{} is not one of the attributes".format(attr_list[attr_list.__len__() - 1]))
+                return False
+        else:
+            for key in new_value.keys():
+                if hasattr(ins, key):
+                    setattr(ins, key, new_value[key])
+                else:
+                    APP_LOGGER.info("{} is not one of the attributes".format(key))
+                    return False
+            return True
+
+    def _uriToIns(self, uri):
+        if not uri:
+            return None
+        uri_list = uri.split("/")
+        uri_list.pop(0)  # delete first element "attributes"
+        return self._getInstance(self, uri_list)
+
+    def _getInstance(self, source_obj, uri_list):
+        if uri_list.__len__() == 0 or uri_list.__len__() == 1:
+            ### the original uri was "attributes/features"
+            return source_obj
+
+        if "ml40" in uri_list[0]:
+            _uri = uri_list[0]
+            uri_list.pop(0)
+            return self._getInstance(source_obj.features[_uri], uri_list)
+
+        elif uri_list[0] == "features":
+            uri_list.pop(0)
+            return self._getInstance(source_obj, uri_list)
+
+        elif uri_list[0] == "targets":
+            uri_list.pop(0)
+            for key in source_obj.targets.keys():
+                subthing_dict = source_obj.targets[key].to_subthing_json()
+                if subthing_dict.get("name", "") == uri_list[0] or subthing_dict.get("identifier", "") == uri_list[0] \
+                        or subthing_dict.get("class", "") == uri_list[0]:
+                    uri_list.pop(0)
+                    return self._getInstance(source_obj.targets[key], uri_list)
+
+        elif uri_list[0] == "subFeatures":
+            uri_list.pop(0)
+            for key in source_obj.subFeatures.keys():
+                subfeature_dict = source_obj.subFeatures[key].to_json()
+                if subfeature_dict.get("name", "") == uri_list[0] or subfeature_dict.get("identifier", "")==uri_list[0] \
+                    or subfeature_dict.get("class", "") == uri_list[0]:
+                    uri_list.pop(0)
+                    return self._getInstance(source_obj.subFeatures[key], uri_list)
 
     def on_get_value_reply(self, msg):
         """Handles incoming S³I-B GetValueReply. Prints the content of msg to stdout.
@@ -828,7 +890,7 @@ def on_set_value_reply(self, msg):
         __log = "[S3I][Broker]: You have received a S3I-B SetValueReply"
         APP_LOGGER.info(__log)
         result = msg.get("ok", None)
-        __log = "[S3I][Broker]: The queried value is: {0}".format(result)
+        __log = "[S3I][Broker]: The status of value setting: {0}".format(result)
         APP_LOGGER.info(__log)
 
     def to_dir_json(self):