X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=ricxappframe%2Fxapp_frame.py;h=feb5d664ef9cc4a1f8a34a2451d2ad078204b369;hb=refs%2Fchanges%2F09%2F7209%2F3;hp=5428ce92f719f9c7bce560612d1f4bcfd819f7d1;hpb=bac18952225035e44ae7672b81dacc2793944a16;p=ric-plt%2Fxapp-frame-py.git diff --git a/ricxappframe/xapp_frame.py b/ricxappframe/xapp_frame.py index 5428ce9..feb5d66 100644 --- a/ricxappframe/xapp_frame.py +++ b/ricxappframe/xapp_frame.py @@ -24,19 +24,19 @@ import os import queue import time from threading import Thread +from typing import List, Set + import inotify_simple from mdclogpy import Logger + from ricxappframe import xapp_rmr +from ricxappframe.constants import sdl_namespaces +from ricxappframe.entities.rnib.nb_identity_pb2 import NbIdentity +from ricxappframe.entities.rnib.nodeb_info_pb2 import Node from ricxappframe.rmr import rmr +from ricxappframe.util.constants import Constants from ricxappframe.xapp_sdl import SDLWrapper import requests -# message-type constants -RIC_HEALTH_CHECK_REQ = 100 -RIC_HEALTH_CHECK_RESP = 101 - -# environment variable with path to configuration file -CONFIG_FILE_ENV = "CONFIG_FILE" -CONFIG_FILE_PATH = "CONFIG_FILE_PATH" class _BaseXapp: @@ -89,7 +89,7 @@ class _BaseXapp: # Config # The environment variable specifies the path to the Xapp config file - self._config_path = os.environ.get(CONFIG_FILE_ENV, None) + self._config_path = os.environ.get(Constants.CONFIG_FILE_ENV, None) if self._config_path and os.path.isfile(self._config_path): self._inotify = inotify_simple.INotify() self._inotify.add_watch(self._config_path, inotify_simple.flags.MODIFY) @@ -103,13 +103,13 @@ class _BaseXapp: # configuration data for xapp registration and deregistration self._config_data = None - self._configfile_path = os.environ.get(CONFIG_FILE_PATH, None) - if self._configfile_path and os.path.isfile(self._configfile_path): - with open(self._configfile_path) as json_file: + if self._config_path and os.path.isfile(self._config_path): + with open(self._config_path) as json_file: self._config_data = json.load(json_file) else: self._keep_registration = False - self.logger.warning("__init__: Cannot Read config file for xapp Registration") + self.logger.error("__init__: Cannot Read config file for xapp Registration") + self._config_data = {} Thread(target=self.registerXapp).start() @@ -134,13 +134,16 @@ class _BaseXapp: url for the service """ app_namespace = self._config_data.get("APP_NAMESPACE") - if app_namespace == "": - app_namespace = self._config_data.get("DEFAULT_XAPP_NS") - svc = service.format(app_namespace.upper(), host.upper()) - url = svc.replace("-", "_").split("//") - - if len(url) > 1: - return url[1] + if app_namespace is None: + app_namespace = Constants.DEFAULT_XAPP_NS + self.logger.debug("service : {} host : {},appnamespace : {}".format(service, host, app_namespace)) + if app_namespace is not None and host is not None: + svc = service.format(app_namespace.upper(), host.upper()) + urlkey = svc.replace("-", "_") + url = os.environ.get(urlkey).split("//") + self.logger.debug("Service urlkey : {} and url: {}".format(urlkey, url)) + if len(url) > 1: + return url[1] return "" def do_post(self, plt_namespace, url, msg): @@ -161,10 +164,17 @@ class _BaseXapp: bool whether or not the xapp is registered """ + if url is None: + self.logger.error("url is empty ") + return False + if plt_namespace is None: + self.logger.error("plt_namespace is empty") + return False try: request_url = url.format(plt_namespace, plt_namespace) resp = requests.post(request_url, json=msg) self.logger.debug("Post to '{}' done, status : {}".format(request_url, resp.status_code)) + self.logger.debug("Response Text : {}".format(resp.text)) return resp.status_code == 200 or resp.status_code == 201 except requests.exceptions.RequestException as err: self.logger.error("Error : {}".format(err)) @@ -188,49 +198,58 @@ class _BaseXapp: bool whether or not the xapp is registered """ - hostname = self._config_data.get("hostname") + hostname = os.environ.get("HOSTNAME") xappname = self._config_data.get("name") xappversion = self._config_data.get("version") - pltnamespace = self._config_data.get("PLT_NAMESPACE") - if pltnamespace == "": - pltnamespace = self._config_data.get("DEFAULT_PLT_NS") - http_endpoint = self.get_service(hostname, self._config_data.get("SERVICE_HTTP")) - rmr_endpoint = self.get_service(hostname, self._config_data.get("SERVICE_RMR")) + pltnamespace = os.environ.get("PLT_NAMESPACE") + if pltnamespace is None: + pltnamespace = Constants.DEFAULT_PLT_NS + self.logger.debug("config details hostname : {} xappname: {} xappversion : {} pltnamespace : {}".format( + hostname, xappname, xappversion, pltnamespace)) + + http_endpoint = self.get_service(hostname, Constants.SERVICE_HTTP) + rmr_endpoint = self.get_service(hostname, Constants.SERVICE_RMR) if http_endpoint == "" or rmr_endpoint == "": - self.logger.warning("Couldn't resolve service endpoints: http_endpoint={} rmr_endpoint={}".format(http_endpoint, rmr_endpoint)) - return None - try: - request_string = { - "appName": hostname, - "httpEndpoint": http_endpoint, - "rmrEndpoint": rmr_endpoint, - "appInstanceName": xappname, - "appVersion": xappversion, - "configPath": self._config_data.get("CONFIG_PATH") - } - request_body = json.dumps(request_string) - except TypeError: - self.logger.error("Unable to serialize the object") - return "Error searializing the object" - - return self.do_post(pltnamespace, self._config_data.get("REGISTER_PATH"), request_body) + self.logger.error( + "Couldn't resolve service endpoints: http_endpoint={} rmr_endpoint={}".format(http_endpoint, + rmr_endpoint)) + return False + self.logger.debug( + "config details hostname : {} xappname: {} xappversion : {} pltnamespace : {} http_endpoint : {} rmr_endpoint " + ": {} configpath : {}".format(hostname, xappname, xappversion, pltnamespace, http_endpoint, rmr_endpoint, + self._config_data.get("CONFIG_PATH"))) + request_string = { + "appName": hostname, + "appVersion": xappversion, + "configPath": "", + "appInstanceName": xappname, + "httpEndpoint": http_endpoint, + "rmrEndpoint": rmr_endpoint, + "config": json.dumps(self._config_data) + } + self.logger.info("REQUEST STRING :{}".format(request_string)) + return self.do_post(pltnamespace, Constants.REGISTER_PATH, request_string) def registerXapp(self): """ registers the xapp """ - while self._keep_registration: - time.sleep(5) + retries = 5 + while self._keep_registration and retries > 0: + time.sleep(2) + retries = retries-1 # checking for rmr/sdl/xapp health healthy = self.healthcheck() if not healthy: - self.logger.warning("Application='{}' is not ready yet, waiting ...".format(self._config_data.get("name"))) + self.logger.warning( + "Application='{}' is not ready yet, waiting ...".format(self._config_data.get("name"))) continue - self.logger.debug("Application='{}' is now up and ready, continue with registration ...".format(self._config_data.get("name"))) - self.register() - self.logger.debug("Registration done, proceeding with startup ...") - break + self.logger.debug("Application='{}' is now up and ready, continue with registration ...".format( + self._config_data.get("name"))) + if self.register(): + self.logger.debug("Registration done, proceeding with startup ...") + break def deregister(self): """ @@ -247,22 +266,17 @@ class _BaseXapp: return None if self._config_data is None: return None - name = self._config_data.get("hostname") + name = os.environ.get("HOSTNAME") xappname = self._config_data.get("name") - pltnamespace = self._config_data.get("PLT_NAMESPACE") - if pltnamespace == "": - pltnamespace = self._config_data.get("PLT_NAMESPACE") - try: - request_string = { + pltnamespace = os.environ.get("PLT_NAMESPACE") + if pltnamespace is None: + pltnamespace = Constants.DEFAULT_PLT_NS + request_string = { "appName": name, "appInstanceName": xappname, - } - request_body = json.dumps(request_string) - except TypeError: - self.logger.error("Error Serializing the object") - return "Error serializing the object" + } - return self.do_post(pltnamespace, self._config_data.get("DEREGISTER_PATH"), request_body) + return self.do_post(pltnamespace, Constants.DEREGISTER_PATH, request_string) def xapp_shutdown(self): """ @@ -304,7 +318,8 @@ class _BaseXapp: bool whether or not the send worked after retries attempts """ - sbuf = rmr.rmr_alloc_msg(vctx=self._mrc, size=len(payload), payload=payload, gen_transaction_id=True, mtype=mtype) + sbuf = rmr.rmr_alloc_msg(vctx=self._mrc, size=len(payload), payload=payload, gen_transaction_id=True, + mtype=mtype) for _ in range(retries): sbuf = rmr.rmr_send_msg(self._mrc, sbuf) @@ -464,6 +479,79 @@ class _BaseXapp: """ self.sdl.delete(namespace, key) + def _get_rnib_info(self, node_type): + """ + Since the difference between get_list_gnb_ids and get_list_enb_ids is only note-type, + this function extracted from the duplicated logic. + + Parameters + ---------- + node_type: string + Type of node. This is EnumDescriptor. + Available node types + - UNKNOWN + - ENG + - GNB + + Returns + ------- + List: (NbIdentity) + + Raises + ------- + SdlTypeError: If function's argument is of an inappropriate type. + NotConnected: If SDL is not connected to the backend data storage. + RejectedByBackend: If backend data storage rejects the request. + BackendError: If the backend data storage fails to process the request. + """ + nbid_strings: Set[bytes] = self.sdl.get_members(sdl_namespaces.E2_MANAGER, node_type, usemsgpack=False) + ret: List[NbIdentity] = [] + for nbid_string in nbid_strings: + nbid = NbIdentity() + nbid.ParseFromString(nbid_string) + ret.append(nbid) + return ret + + def get_list_gnb_ids(self): + """ + Retrieves the list of gNodeb identity entities + + gNodeb information is stored in SDL by E2Manager. Therefore, gNode information + is stored in SDL's `e2Manager` namespace as protobuf serialized. + + Returns + ------- + List: (NbIdentity) + + Raises + ------- + SdlTypeError: If function's argument is of an inappropriate type. + NotConnected: If SDL is not connected to the backend data storage. + RejectedByBackend: If backend data storage rejects the request. + BackendError: If the backend data storage fails to process the request. + """ + return self._get_rnib_info(Node.Type.Name(Node.Type.GNB)) + + def get_list_enb_ids(self): + """ + Retrieves the list of eNodeb identity entities + + eNodeb information is stored in SDL by E2Manager. Therefore, eNode information + is stored in SDL's `e2Manager` namespace as protobuf serialized. + + Returns + ------- + List: (NbIdentity) + + Raises + ------ + SdlTypeError: If function's argument is of an inappropriate type. + NotConnected: If SDL is not connected to the backend data storage. + RejectedByBackend: If backend data storage rejects the request. + BackendError: If the backend data storage fails to process the request. + """ + return self._get_rnib_info(Node.Type.Name(Node.Type.ENB)) + # Health def healthcheck(self): @@ -558,7 +646,8 @@ class RMRXapp(_BaseXapp): its signature should be post_init(self) """ - def __init__(self, default_handler, config_handler=None, rmr_port=4562, rmr_wait_for_ready=True, use_fake_sdl=False, post_init=None): + def __init__(self, default_handler, config_handler=None, rmr_port=4562, rmr_wait_for_ready=True, use_fake_sdl=False, + post_init=None): """ Also see _BaseXapp """ @@ -582,15 +671,16 @@ class RMRXapp(_BaseXapp): def handle_healthcheck(self, summary, sbuf): healthy = self.healthcheck() payload = b"OK\n" if healthy else b"ERROR [RMR or SDL is unhealthy]\n" - self.rmr_rts(sbuf, new_payload=payload, new_mtype=RIC_HEALTH_CHECK_RESP) + self.rmr_rts(sbuf, new_payload=payload, new_mtype=Constants.RIC_HEALTH_CHECK_RESP) self.rmr_free(sbuf) - self.register_callback(handle_healthcheck, RIC_HEALTH_CHECK_REQ) + self.register_callback(handle_healthcheck, Constants.RIC_HEALTH_CHECK_REQ) # define a default configuration-change handler if none was provided. if not config_handler: def handle_config_change(self, config): self.logger.debug("xapp_frame: default config handler invoked") + self._config_handler = handle_config_change # call the config handler at startup if prereqs were met