added monitoring tab, retrieve cep id from backend

README.md

@@ -7,6 +7,7 @@
   - [Build Custom Extension](#build-custom-extension)
   - [Options for Custom Extension](#options-for-custom-extension)
 - [Samples Repositories and Building Custom Extensions](#samples-repositories-and-building-custom-extensions)
+- [Monitoring](#monitoring)
 - [Installation](#installation-of-plugin-as-community-plugin)
 - [Build Instructions](#build-instructions)
 - [Analytics Builder Extension Backend](#analytics-builder-extension-backend)
@@ -63,14 +64,23 @@ In addition you can view the EPL (event processing language) source code:
 
 ![View source code](resources/images/samples-view-code.png)
 
-Buildin a custom extension starts by selecting the blocks from the list of samples. On selection of blocks an action in the table header appears `Custom Extension`.
+Building a custom extension starts by selecting the blocks from the list of samples. On selection of blocks an action in the table header appears `Custom Extension`.
 The modal dialog provides the option:
 * to name the custom extension
 * to upload the extension automatically to the Cumulocity Inventory. The created custom extension is otherwise downloaded to locally. It still requires the restart of the analytics engine.
 * to restart the stremaning analytics engine to load the created custom extension.
 
 ![Create Extension](resources/images/create-extension-modal.png)
 
+## Monitoring
+
+On the monitoring tab you can view the latest alarms and events for the Streaming Analytics Engine. This is especially helpful if after an upload of a new extension no extension is loaded. 
+
+This is an indication that the engine was started in **Safe Mode**, i.e. without loading any extension. In this case you have to delete the latest uploaded extension and restart the engine again.
+
+![Monitoring](resources/images/monitoring.png)
+
+
 ## Installation of plugin as community plugin
 
 > **NOTE**

analytics-service/c8y_agent.py

@@ -67,17 +67,18 @@ def get_cep_id(self, request_headers):
                     self._logger.info(f"Found app id: {app_id}")
                     # break
                 filter = f"$filter=applicationId eq '{app_id}' and name eq '{self.APAMA_CTRL_APPLICATION_NAME}'"
-                self._logger.info(f"Build filter: {filter}")
 
-                # managed_objects_app = self.c8yapp.get_tenant_instance(
-                #     headers=request_headers
-                # ).inventory.select(query=query)
+                self._logger.info(f"Build filter: {filter}")
+                params = {"query": filter}
                 response = self.c8yapp.get_tenant_instance(headers=request_headers).get(
-                    resource=f"/inventory/managedObjects?query={filter}"
+                    resource=f"/inventory/managedObjects", params=params
                 )
                 cep_id = response["managedObjects"][0]["id"]
                 self._logger.info(f"Found managed object for app: {cep_id}")
 
+                # managed_objects_app = self.c8yapp.get_tenant_instance(
+                #     headers=request_headers
+                # ).inventory.select(query=query)
                 # managed_object_id = None
                 # for managed_object in managed_objects_app:
                 #     self._logger.info(

analytics-ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "analytics-extension",
-  "version": "2.2.5",
+  "version": "2.2.4",
   "description": "Extends the standard Cumulocity administration web application with a dialog to add Analytics Builder extensions.",
   "repository": {
     "type": "git",