mirror of
https://github.com/thingsboard/thingsboard-gateway
synced 2025-10-26 22:31:42 +08:00
920 lines
49 KiB
Python
920 lines
49 KiB
Python
# Copyright 2021. ThingsBoard
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import logging.config
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import logging.handlers
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from os import execv, listdir, path, pathsep, stat, system
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from queue import SimpleQueue
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from random import choice
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from string import ascii_lowercase, hexdigits
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from sys import argv, executable, getsizeof
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from threading import RLock, Thread
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from time import sleep, time
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from simplejson import JSONDecodeError, dumps, load, loads
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from yaml import safe_load
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from thingsboard_gateway.gateway.grpc_service.tb_grpc_manager import TBGRPCServerManager, Status
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from thingsboard_gateway.gateway.grpc_service.grpc_connector import GrpcConnector
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from thingsboard_gateway.gateway.tb_client import TBClient
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from thingsboard_gateway.gateway.constants import CONNECTED_DEVICES_FILENAME, CONNECTOR_PARAMETER, PERSISTENT_GRPC_CONNECTORS_KEY_FILENAME
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from thingsboard_gateway.gateway.constant_enums import DeviceActions
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from thingsboard_gateway.storage.file.file_event_storage import FileEventStorage
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from thingsboard_gateway.storage.memory.memory_event_storage import MemoryEventStorage
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from thingsboard_gateway.storage.sqlite.sqlite_event_storage import SQLiteEventStorage
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from thingsboard_gateway.tb_utility.tb_gateway_remote_configurator import RemoteConfigurator
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from thingsboard_gateway.tb_utility.tb_loader import TBModuleLoader
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from thingsboard_gateway.tb_utility.tb_logger import TBLoggerHandler
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from thingsboard_gateway.tb_utility.tb_remote_shell import RemoteShell
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from thingsboard_gateway.tb_utility.tb_updater import TBUpdater
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from thingsboard_gateway.tb_utility.tb_utility import TBUtility
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log = logging.getLogger('service')
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main_handler = logging.handlers.MemoryHandler(-1)
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DEFAULT_CONNECTORS = {
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"mqtt": "MqttConnector",
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"modbus": "ModbusConnector",
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"opcua": "OpcUaConnector",
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"ble": "BLEConnector",
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"request": "RequestConnector",
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"can": "CanConnector",
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"bacnet": "BACnetConnector",
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"odbc": "OdbcConnector",
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"rest": "RESTConnector",
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"snmp": "SNMPConnector",
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"ftp": "FTPConnector"
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}
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def load_file(path_to_file):
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content = None
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with open(path_to_file, 'r') as target_file:
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content = load(target_file)
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return content
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class TBGatewayService:
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def __init__(self, config_file=None):
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self.stopped = False
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self.__lock = RLock()
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self.async_device_actions = {
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DeviceActions.CONNECT: self.add_device,
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DeviceActions.DISCONNECT: self.del_device
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}
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self.__async_device_actions_queue = SimpleQueue()
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self.__process_async_actions_thread = Thread(target=self.__process_async_device_actions, name="Async device actions processing thread", daemon=True)
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if config_file is None:
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config_file = path.dirname(path.dirname(path.abspath(__file__))) + '/config/tb_gateway.yaml'.replace('/',
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path.sep)
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with open(config_file) as general_config:
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self.__config = safe_load(general_config)
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self._config_dir = path.dirname(path.abspath(config_file)) + path.sep
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logging_error = None
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try:
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logging.config.fileConfig(self._config_dir + "logs.conf", disable_existing_loggers=False)
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except Exception as e:
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logging_error = e
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global log
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log = logging.getLogger('service')
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log.info("Gateway starting...")
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self.__updater = TBUpdater()
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self.__updates_check_period_ms = 300000
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self.__updates_check_time = 0
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self.version = self.__updater.get_version()
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log.info("ThingsBoard IoT gateway version: %s", self.version["current_version"])
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self.available_connectors = {}
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self.__connector_incoming_messages = {}
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self.__connected_devices = {}
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self.__saved_devices = {}
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self.__events = []
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self.name = ''.join(choice(ascii_lowercase) for _ in range(64))
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self.__rpc_register_queue = SimpleQueue()
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self.__rpc_requests_in_progress = {}
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self.tb_client = TBClient(self.__config["thingsboard"], self._config_dir)
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try:
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self.tb_client.disconnect()
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except Exception as e:
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log.exception(e)
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self.tb_client.connect()
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self.subscribe_to_required_topics()
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self.__subscribed_to_rpc_topics = True
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if logging_error is not None:
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self.tb_client.client.send_telemetry({"ts": time() * 1000, "values": {
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"LOGS": "Logging loading exception, logs.conf is wrong: %s" % (str(logging_error),)}})
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TBLoggerHandler.set_default_handler()
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self.counter = 0
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self.__rpc_reply_sent = False
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global main_handler
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self.main_handler = main_handler
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self.remote_handler = TBLoggerHandler(self)
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self.main_handler.setTarget(self.remote_handler)
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self._default_connectors = DEFAULT_CONNECTORS
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self.__converted_data_queue = SimpleQueue()
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self.__save_converted_data_thread = Thread(name="Save converted data", daemon=True, target=self.__send_to_storage)
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self.__save_converted_data_thread.start()
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self._implemented_connectors = {}
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self._event_storage_types = {
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"memory": MemoryEventStorage,
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"file": FileEventStorage,
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"sqlite": SQLiteEventStorage,
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}
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self.__gateway_rpc_methods = {
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"ping": self.__rpc_ping,
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"stats": self.__form_statistics,
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"devices": self.__rpc_devices,
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"update": self.__rpc_update,
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"version": self.__rpc_version,
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}
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self.__remote_shell = None
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if self.__config["thingsboard"].get("remoteShell"):
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log.warning("Remote shell is enabled. Please be carefully with this feature.")
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self.__remote_shell = RemoteShell(platform=self.__updater.get_platform(),
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release=self.__updater.get_release())
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self.__rpc_remote_shell_command_in_progress = None
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self.__scheduled_rpc_calls = []
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self.__rpc_scheduled_methods_functions = {
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"restart": {"function": execv, "arguments": (executable, [executable.split(pathsep)[-1]] + argv)},
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"reboot": {"function": system, "arguments": ("reboot 0",)},
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}
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self._event_storage = self._event_storage_types[self.__config["storage"]["type"]](self.__config["storage"])
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self.connectors_configs = {}
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self.__remote_configurator = None
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self.__request_config_after_connect = False
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self.__connected_devices = {}
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self.__load_persistent_devices()
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self.__init_remote_configuration()
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self.__grpc_config = self.__config.get('grpc')
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self.__grpc_manager = None
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self.__grpc_connectors = {}
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if self.__grpc_config is not None and self.__grpc_config.get("enabled"):
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self.__process_async_actions_thread.start()
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self.__grpc_manager = TBGRPCServerManager(self, self.__grpc_config)
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self.__grpc_manager.set_gateway_read_callbacks(self.__register_connector, self.__unregister_connector, self.send_to_storage)
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self._load_connectors()
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self._connect_with_connectors()
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self.__load_persistent_devices()
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self._published_events = SimpleQueue()
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self._send_thread = Thread(target=self.__read_data_from_storage, daemon=True,
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name="Send data to Thingsboard Thread")
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self._send_thread.start()
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self.__min_pack_send_delay_ms = self.__config['thingsboard'].get('minPackSendDelayMS', 500) / 1000.0
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log.info("Gateway started.")
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try:
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gateway_statistic_send = 0
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connectors_configuration_check_time = 0
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while not self.stopped:
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cur_time = time() * 1000
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if not self.tb_client.is_connected() and self.__subscribed_to_rpc_topics:
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self.__subscribed_to_rpc_topics = False
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if self.tb_client.is_connected() and not self.__subscribed_to_rpc_topics:
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for device in self.__saved_devices:
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self.add_device(device, {"connector": self.__saved_devices[device]["connector"]},
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device_type=self.__saved_devices[device]["device_type"])
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self.subscribe_to_required_topics()
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self.__subscribed_to_rpc_topics = True
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if self.__scheduled_rpc_calls:
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for rpc_call_index in range(len(self.__scheduled_rpc_calls)):
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rpc_call = self.__scheduled_rpc_calls[rpc_call_index]
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if cur_time > rpc_call[0]:
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rpc_call = self.__scheduled_rpc_calls.pop(rpc_call_index)
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result = None
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try:
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result = rpc_call[1]["function"](*rpc_call[1]["arguments"])
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except Exception as e:
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log.exception(e)
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if result == 256:
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log.warning("Error on RPC command: 256. Permission denied.")
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if (
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self.__rpc_requests_in_progress or not self.__rpc_register_queue.empty()) and self.tb_client.is_connected():
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new_rpc_request_in_progress = {}
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if self.__rpc_requests_in_progress:
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for rpc_in_progress, data in self.__rpc_requests_in_progress.items():
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if cur_time >= data[1]:
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data[2](rpc_in_progress)
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self.cancel_rpc_request(rpc_in_progress)
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self.__rpc_requests_in_progress[rpc_in_progress] = "del"
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new_rpc_request_in_progress = {key: value for key, value in
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self.__rpc_requests_in_progress.items() if value != 'del'}
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if not self.__rpc_register_queue.empty():
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rpc_request_from_queue = self.__rpc_register_queue.get(False)
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topic = rpc_request_from_queue["topic"]
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data = rpc_request_from_queue["data"]
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new_rpc_request_in_progress[topic] = data
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self.__rpc_requests_in_progress = new_rpc_request_in_progress
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else:
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try:
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sleep(0.2)
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except Exception as e:
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log.exception(e)
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break
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if not self.__request_config_after_connect and self.tb_client.is_connected() and not self.tb_client.client.get_subscriptions_in_progress():
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self.__request_config_after_connect = True
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self.__check_shared_attributes()
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if cur_time - gateway_statistic_send > self.__config["thingsboard"].get("statsSendPeriodInSeconds",
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3600) * 1000 and self.tb_client.is_connected():
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summary_messages = self.__form_statistics()
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# with self.__lock:
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self.tb_client.client.send_telemetry(summary_messages)
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gateway_statistic_send = time() * 1000
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# self.__check_shared_attributes()
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if cur_time - connectors_configuration_check_time > self.__config["thingsboard"].get(
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"checkConnectorsConfigurationInSeconds", 60) * 1000:
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self.check_connector_configuration_updates()
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connectors_configuration_check_time = time() * 1000
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if cur_time - self.__updates_check_time >= self.__updates_check_period_ms:
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self.__updates_check_time = time() * 1000
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self.version = self.__updater.get_version()
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except KeyboardInterrupt:
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self.__stop_gateway()
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except Exception as e:
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log.exception(e)
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self.__stop_gateway()
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self.__close_connectors()
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log.info("The gateway has been stopped.")
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self.tb_client.stop()
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def __close_connectors(self):
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for current_connector in self.available_connectors:
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try:
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self.available_connectors[current_connector].close()
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log.debug("Connector %s closed connection.", current_connector)
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except Exception as e:
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log.exception(e)
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def __stop_gateway(self):
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self.stopped = True
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self.__updater.stop()
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log.info("Stopping...")
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self.__grpc_manager.stop()
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self.__close_connectors()
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self._event_storage.stop()
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log.info("The gateway has been stopped.")
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self.tb_client.disconnect()
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self.tb_client.stop()
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def __init_remote_configuration(self, force=False):
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if (self.__config["thingsboard"].get("remoteConfiguration") or force) and self.__remote_configurator is None:
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try:
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self.__remote_configurator = RemoteConfigurator(self, self.__config)
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if self.tb_client.is_connected() and not self.tb_client.client.get_subscriptions_in_progress():
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self.__check_shared_attributes()
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except Exception as e:
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log.exception(e)
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if self.__remote_configurator is not None:
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self.__remote_configurator.send_current_configuration()
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def _attributes_parse(self, content, *args):
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try:
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log.debug("Received data: %s", content)
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if content is not None:
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shared_attributes = content.get("shared")
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client_attributes = content.get("client")
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new_configuration = shared_attributes.get(
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"configuration") if shared_attributes is not None and shared_attributes.get(
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"configuration") is not None else content.get("configuration")
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if new_configuration is not None and self.__remote_configurator is not None:
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try:
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confirmed = self.__remote_configurator.process_configuration(new_configuration)
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# if confirmed:
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# self._send_thread = Thread(target=self.__read_data_from_storage, daemon=True,
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# name="Send data to Thingsboard Thread")
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# self._send_thread.start()
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self.__remote_configurator.send_current_configuration()
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except Exception as e:
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log.exception(e)
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remote_logging_level = shared_attributes.get(
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'RemoteLoggingLevel') if shared_attributes is not None else content.get("RemoteLoggingLevel")
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if remote_logging_level == 'NONE':
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self.remote_handler.deactivate()
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log.info('Remote logging has being deactivated.')
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elif remote_logging_level is not None:
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if self.remote_handler.current_log_level != remote_logging_level or not self.remote_handler.activated:
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self.main_handler.setLevel(remote_logging_level)
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self.remote_handler.activate(remote_logging_level)
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log.info('Remote logging has being updated. Current logging level is: %s ',
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remote_logging_level)
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if shared_attributes is not None:
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log.debug("Shared attributes received (%s).",
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", ".join([attr for attr in shared_attributes.keys()]))
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if client_attributes is not None:
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log.debug("Client attributes received (%s).",
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", ".join([attr for attr in client_attributes.keys()]))
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except Exception as e:
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log.exception(e)
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def get_config_path(self):
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return self._config_dir
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def subscribe_to_required_topics(self):
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self.tb_client.client.clean_device_sub_dict()
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self.tb_client.client.gw_set_server_side_rpc_request_handler(self._rpc_request_handler)
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self.tb_client.client.set_server_side_rpc_request_handler(self._rpc_request_handler)
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self.tb_client.client.subscribe_to_all_attributes(self._attribute_update_callback)
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self.tb_client.client.gw_subscribe_to_all_attributes(self._attribute_update_callback)
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def __check_shared_attributes(self):
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self.tb_client.client.request_attributes(callback=self._attributes_parse)
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def __register_connector(self, context, connector_key):
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if self.__grpc_connectors.get(connector_key) is not None and self.__grpc_connectors[connector_key]['name'] not in self.available_connectors:
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target_connector = self.__grpc_connectors.get(connector_key)
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connector = GrpcConnector(self, target_connector['config'], self.__grpc_manager)
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connector.setName(target_connector['name'])
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self.available_connectors[connector.get_name()] = connector
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self.__grpc_manager.registration_finished(Status.SUCCESS, context, target_connector)
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log.info("GRPC connector with key %s registered with name %s", connector_key, connector.get_name())
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elif self.__grpc_connectors.get(connector_key) is not None:
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self.__grpc_manager.registration_finished(Status.FAILURE, context, None)
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log.error("GRPC connector with key: %s - already registered!", connector_key)
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else:
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self.__grpc_manager.registration_finished(Status.NOT_FOUND, context, None)
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log.error("GRPC configuration for connector with key: %s - not found", connector_key)
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def __unregister_connector(self, context, connector_key):
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if self.__grpc_connectors.get(connector_key) is not None and self.__grpc_connectors[connector_key]['name'] in self.available_connectors:
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connector_name = self.__grpc_connectors[connector_key]['name']
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target_connector: GrpcConnector = self.available_connectors.pop(connector_name)
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target_connector.close()
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self.__grpc_manager.unregister(Status.SUCCESS, context, target_connector)
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log.info("GRPC connector with key %s and name %s - unregistered", connector_key, target_connector.get_name())
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elif self.__grpc_connectors.get(connector_key) is not None:
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self.__grpc_manager.unregister(Status.NOT_FOUND, context, None)
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log.error("GRPC connector with key: %s - is not registered!", connector_key)
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else:
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self.__grpc_manager.unregister(Status.FAILURE, context, None)
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log.error("GRPC configuration for connector with key: %s - not found in configuration and not registered", connector_key)
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def _load_connectors(self):
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self.connectors_configs = {}
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connectors_persistent_keys = self.__load_persistent_connector_keys()
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if self.__config.get("connectors"):
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for connector in self.__config['connectors']:
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try:
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connector_persistent_key = None
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if connector['type'] == "grpc" and self.__grpc_manager is None:
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log.error("Cannot load connector with name: %s and type grpc. GRPC server is disabled!", connector['name'])
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continue
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if connector['type'] != "grpc":
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connector_class = TBModuleLoader.import_module(connector['type'],
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self._default_connectors.get(connector['type'],
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connector.get('class')))
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self._implemented_connectors[connector['type']] = connector_class
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elif connector['type'] == "grpc":
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if connector.get('key') == "auto":
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if connectors_persistent_keys and connectors_persistent_keys.get(connector['name']) is not None:
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connector_persistent_key = connectors_persistent_keys[connector['name']]
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else:
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connector_persistent_key = "".join(choice(hexdigits) for _ in range(10))
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connectors_persistent_keys[connector['name']] = connector_persistent_key
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else:
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connector_persistent_key = connector['key']
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log.info("Connector key for GRPC connector with name [%s] is: [%s]", connector['name'], connector_persistent_key)
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config_file_path = self._config_dir + connector['configuration']
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connector_conf_file_data = ''
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with open(config_file_path, 'r', encoding="UTF-8") as conf_file:
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connector_conf_file_data = conf_file.read()
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connector_conf = connector_conf_file_data
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try:
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connector_conf = loads(connector_conf_file_data)
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except JSONDecodeError as e:
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log.debug(e)
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log.warning("Cannot parse connector configuration as a JSON, it will be passed as a string.")
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if not self.connectors_configs.get(connector['type']):
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self.connectors_configs[connector['type']] = []
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if connector['type'] != 'grpc' and isinstance(connector_conf, dict):
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connector_conf["name"] = connector['name']
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self.connectors_configs[connector['type']].append({"name": connector['name'],
|
|
"config": {connector['configuration']: connector_conf} if connector['type'] != 'grpc' else connector_conf,
|
|
"config_updated": stat(config_file_path),
|
|
"config_file_path": config_file_path,
|
|
"grpc_key": connector_persistent_key})
|
|
except Exception as e:
|
|
log.exception("Error on loading connector: %r", e)
|
|
if connectors_persistent_keys:
|
|
self.__save_persistent_keys(connectors_persistent_keys)
|
|
else:
|
|
log.error("Connectors - not found! Check your configuration!")
|
|
self.__init_remote_configuration(force=True)
|
|
log.info("Remote configuration is enabled forcibly!")
|
|
|
|
def _connect_with_connectors(self):
|
|
for connector_type in self.connectors_configs:
|
|
for connector_config in self.connectors_configs[connector_type]:
|
|
if connector_type.lower() != 'grpc':
|
|
for config in connector_config["config"]:
|
|
connector = None
|
|
try:
|
|
if connector_config["config"][config] is not None:
|
|
if self._implemented_connectors[connector_type]:
|
|
connector = self._implemented_connectors[connector_type](self, connector_config["config"][config], connector_type)
|
|
connector.setName(connector_config["name"])
|
|
self.available_connectors[connector.get_name()] = connector
|
|
connector.open()
|
|
else:
|
|
log.warning("Connector implementation not found for %s", connector_config["name"])
|
|
else:
|
|
log.info("Config not found for %s", connector_type)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
if connector is not None:
|
|
connector.close()
|
|
else:
|
|
self.__grpc_connectors.update({connector_config['grpc_key']: connector_config})
|
|
|
|
def check_connector_configuration_updates(self):
|
|
configuration_changed = False
|
|
for connector_type in self.connectors_configs:
|
|
for connector_config in self.connectors_configs[connector_type]:
|
|
if stat(connector_config["config_file_path"]) != connector_config["config_updated"]:
|
|
configuration_changed = True
|
|
break
|
|
if configuration_changed:
|
|
break
|
|
if configuration_changed:
|
|
self.__close_connectors()
|
|
self._load_connectors()
|
|
self._connect_with_connectors()
|
|
|
|
def send_to_storage(self, connector_name, data):
|
|
try:
|
|
self.__converted_data_queue.put((connector_name, data), True, 100)
|
|
return Status.SUCCESS
|
|
except Exception as e:
|
|
log.exception("Cannot put converted data!", e)
|
|
return Status.FAILURE
|
|
|
|
def __send_to_storage(self):
|
|
while True:
|
|
try:
|
|
if not self.__converted_data_queue.empty():
|
|
connector_name, data = self.__converted_data_queue.get(True, 100)
|
|
if not connector_name == self.name:
|
|
if not TBUtility.validate_converted_data(data):
|
|
log.error("Data from %s connector is invalid.", connector_name)
|
|
continue
|
|
if data["deviceName"] not in self.get_devices() and self.tb_client.is_connected():
|
|
self.add_device(data["deviceName"],
|
|
{"connector": self.available_connectors[connector_name]},
|
|
device_type=data["deviceType"])
|
|
if not self.__connector_incoming_messages.get(connector_name):
|
|
self.__connector_incoming_messages[connector_name] = 0
|
|
else:
|
|
self.__connector_incoming_messages[connector_name] += 1
|
|
else:
|
|
data["deviceName"] = "currentThingsBoardGateway"
|
|
|
|
telemetry = {}
|
|
telemetry_with_ts = []
|
|
for item in data["telemetry"]:
|
|
if item.get("ts") is None:
|
|
telemetry = {**telemetry, **item}
|
|
else:
|
|
telemetry_with_ts.append({"ts": item["ts"], "values": {**item["values"]}})
|
|
if telemetry_with_ts:
|
|
data["telemetry"] = telemetry_with_ts
|
|
else:
|
|
data["telemetry"] = {"ts": int(time() * 1000), "values": telemetry}
|
|
|
|
json_data = dumps(data)
|
|
save_result = self._event_storage.put(json_data)
|
|
if not save_result:
|
|
log.error('Data from the device "%s" cannot be saved, connector name is %s.',
|
|
data["deviceName"],
|
|
connector_name)
|
|
else:
|
|
sleep(0.2)
|
|
except Exception as e:
|
|
log.error(e)
|
|
|
|
def check_size(self, size, devices_data_in_event_pack):
|
|
if size >= self.__config["thingsboard"].get("maxPayloadSizeBytes", 4096):
|
|
self.__send_data(devices_data_in_event_pack)
|
|
size = 0
|
|
return size
|
|
|
|
def __read_data_from_storage(self):
|
|
devices_data_in_event_pack = {}
|
|
log.debug("Send data Thread has been started successfully.")
|
|
|
|
while not self.stopped:
|
|
try:
|
|
if self.tb_client.is_connected():
|
|
size = getsizeof(str(devices_data_in_event_pack))-2
|
|
events = []
|
|
|
|
if self.__remote_configurator is None or not self.__remote_configurator.in_process:
|
|
events = self._event_storage.get_event_pack()
|
|
|
|
if events:
|
|
for event in events:
|
|
self.counter += 1
|
|
try:
|
|
current_event = loads(event)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
continue
|
|
|
|
if not devices_data_in_event_pack.get(current_event["deviceName"]):
|
|
devices_data_in_event_pack[current_event["deviceName"]] = {"telemetry": [],
|
|
"attributes": {}}
|
|
if current_event.get("telemetry"):
|
|
if isinstance(current_event["telemetry"], list):
|
|
for item in current_event["telemetry"]:
|
|
size += getsizeof(str(item))-2
|
|
size = self.check_size(size, devices_data_in_event_pack)
|
|
devices_data_in_event_pack[current_event["deviceName"]]["telemetry"].append(
|
|
item)
|
|
else:
|
|
size += getsizeof(str(current_event["telemetry"]))-2
|
|
size = self.check_size(size, devices_data_in_event_pack)
|
|
devices_data_in_event_pack[current_event["deviceName"]]["telemetry"].append(
|
|
current_event["telemetry"])
|
|
if current_event.get("attributes"):
|
|
if isinstance(current_event["attributes"], list):
|
|
for item in current_event["attributes"]:
|
|
size += getsizeof(str(item))-2
|
|
size = self.check_size(size, devices_data_in_event_pack)
|
|
devices_data_in_event_pack[current_event["deviceName"]]["attributes"].update(
|
|
item.items())
|
|
else:
|
|
size += getsizeof(str(current_event["attributes"].items()))-2
|
|
size = self.check_size(size, devices_data_in_event_pack)
|
|
devices_data_in_event_pack[current_event["deviceName"]]["attributes"].update(
|
|
current_event["attributes"].items())
|
|
|
|
if devices_data_in_event_pack:
|
|
if not self.tb_client.is_connected():
|
|
continue
|
|
while self.__rpc_reply_sent:
|
|
sleep(.2)
|
|
|
|
self.__send_data(devices_data_in_event_pack)
|
|
sleep(self.__min_pack_send_delay_ms)
|
|
|
|
if self.tb_client.is_connected() and (
|
|
self.__remote_configurator is None or not self.__remote_configurator.in_process):
|
|
success = True
|
|
while not self._published_events.empty():
|
|
if (self.__remote_configurator is not None and self.__remote_configurator.in_process) or \
|
|
not self.tb_client.is_connected() or \
|
|
self._published_events.empty() or \
|
|
self.__rpc_reply_sent:
|
|
success = False
|
|
break
|
|
event = self._published_events.get(False, 10)
|
|
try:
|
|
if self.tb_client.is_connected() and (
|
|
self.__remote_configurator is None or not self.__remote_configurator.in_process):
|
|
if self.tb_client.client.quality_of_service == 1:
|
|
success = event.get() == event.TB_ERR_SUCCESS
|
|
else:
|
|
success = True
|
|
else:
|
|
break
|
|
except Exception as e:
|
|
log.exception(e)
|
|
success = False
|
|
sleep(0.2)
|
|
if success:
|
|
self._event_storage.event_pack_processing_done()
|
|
del devices_data_in_event_pack
|
|
devices_data_in_event_pack = {}
|
|
else:
|
|
continue
|
|
else:
|
|
sleep(0.2)
|
|
else:
|
|
sleep(0.2)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
sleep(1)
|
|
|
|
def __send_data(self, devices_data_in_event_pack):
|
|
try:
|
|
for device in devices_data_in_event_pack:
|
|
if devices_data_in_event_pack[device].get("attributes"):
|
|
if device == self.name or device == "currentThingsBoardGateway":
|
|
self._published_events.put(
|
|
self.tb_client.client.send_attributes(devices_data_in_event_pack[device]["attributes"]))
|
|
else:
|
|
self._published_events.put(self.tb_client.client.gw_send_attributes(device,
|
|
devices_data_in_event_pack[
|
|
device]["attributes"]))
|
|
if devices_data_in_event_pack[device].get("telemetry"):
|
|
if device == self.name or device == "currentThingsBoardGateway":
|
|
self._published_events.put(
|
|
self.tb_client.client.send_telemetry(devices_data_in_event_pack[device]["telemetry"]))
|
|
else:
|
|
self._published_events.put(self.tb_client.client.gw_send_telemetry(device,
|
|
devices_data_in_event_pack[
|
|
device]["telemetry"]))
|
|
devices_data_in_event_pack[device] = {"telemetry": [], "attributes": {}}
|
|
except Exception as e:
|
|
log.exception(e)
|
|
|
|
def _rpc_request_handler(self, request_id, content):
|
|
try:
|
|
device = content.get("device")
|
|
if device is not None:
|
|
connector_name = self.get_devices()[device].get("connector")
|
|
if connector_name is not None:
|
|
connector_name.server_side_rpc_handler(content)
|
|
else:
|
|
log.error("Received RPC request but connector for the device %s not found. Request data: \n %s",
|
|
content["device"],
|
|
dumps(content))
|
|
else:
|
|
try:
|
|
method_split = content["method"].split('_')
|
|
module = None
|
|
if len(method_split) > 0:
|
|
module = method_split[0]
|
|
if module is not None:
|
|
result = None
|
|
if self.connectors_configs.get(module):
|
|
log.debug("Connector \"%s\" for RPC request \"%s\" found", module, content["method"])
|
|
for connector_name in self.available_connectors:
|
|
if self.available_connectors[connector_name]._connector_type == module:
|
|
log.debug("Sending command RPC %s to connector %s", content["method"],
|
|
connector_name)
|
|
result = self.available_connectors[connector_name].server_side_rpc_handler(content)
|
|
elif module == 'gateway' or module in self.__remote_shell.shell_commands:
|
|
result = self.__rpc_gateway_processing(request_id, content)
|
|
else:
|
|
log.error("Connector \"%s\" not found", module)
|
|
result = {"error": "%s - connector not found in available connectors." % module,
|
|
"code": 404}
|
|
if result is None:
|
|
self.send_rpc_reply(None, request_id, success_sent=False)
|
|
elif "qos" in result:
|
|
self.send_rpc_reply(None, request_id,
|
|
dumps({k: v for k, v in result.items() if k != "qos"}),
|
|
quality_of_service=result["qos"])
|
|
else:
|
|
self.send_rpc_reply(None, request_id, dumps(result))
|
|
except Exception as e:
|
|
self.send_rpc_reply(None, request_id, "{\"error\":\"%s\", \"code\": 500}" % str(e))
|
|
log.exception(e)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
|
|
def __rpc_gateway_processing(self, request_id, content):
|
|
log.info("Received RPC request to the gateway, id: %s, method: %s", str(request_id), content["method"])
|
|
arguments = content.get('params', {})
|
|
method_to_call = content["method"].replace("gateway_", "")
|
|
result = None
|
|
if self.__remote_shell is not None:
|
|
method_function = self.__remote_shell.shell_commands.get(method_to_call,
|
|
self.__gateway_rpc_methods.get(method_to_call))
|
|
else:
|
|
log.info("Remote shell is disabled.")
|
|
method_function = self.__gateway_rpc_methods.get(method_to_call)
|
|
if method_function is None and method_to_call in self.__rpc_scheduled_methods_functions:
|
|
seconds_to_restart = arguments * 1000 if arguments and arguments != '{}' else 0
|
|
self.__scheduled_rpc_calls.append(
|
|
[time() * 1000 + seconds_to_restart, self.__rpc_scheduled_methods_functions[method_to_call]])
|
|
log.info("Gateway %s scheduled in %i seconds", method_to_call, seconds_to_restart / 1000)
|
|
result = {"success": True}
|
|
elif method_function is None:
|
|
log.error("RPC method %s - Not found", content["method"])
|
|
return {"error": "Method not found", "code": 404}
|
|
elif isinstance(arguments, list):
|
|
result = method_function(*arguments)
|
|
elif arguments:
|
|
result = method_function(arguments)
|
|
else:
|
|
result = method_function()
|
|
return result
|
|
|
|
@staticmethod
|
|
def __rpc_ping(*args):
|
|
return {"code": 200, "resp": "pong"}
|
|
|
|
def __rpc_devices(self, *args):
|
|
data_to_send = {}
|
|
for device in self.__connected_devices:
|
|
if self.__connected_devices[device]["connector"] is not None:
|
|
data_to_send[device] = self.__connected_devices[device]["connector"].get_name()
|
|
return {"code": 200, "resp": data_to_send}
|
|
|
|
def __rpc_update(self, *args):
|
|
try:
|
|
result = {"resp": self.__updater.update(),
|
|
"code": 200,
|
|
}
|
|
except Exception as e:
|
|
result = {"error": str(e),
|
|
"code": 500
|
|
}
|
|
return result
|
|
|
|
def __rpc_version(self, *args):
|
|
try:
|
|
result = {"resp": self.__updater.get_version(),
|
|
"code": 200,
|
|
}
|
|
except Exception as e:
|
|
result = {"error": str(e),
|
|
"code": 500
|
|
}
|
|
return result
|
|
|
|
def is_rpc_in_progress(self, topic):
|
|
return topic in self.__rpc_requests_in_progress
|
|
|
|
def rpc_with_reply_processing(self, topic, content):
|
|
req_id = self.__rpc_requests_in_progress[topic][0]["data"]["id"]
|
|
device = self.__rpc_requests_in_progress[topic][0]["device"]
|
|
log.info("Outgoing RPC. Device: %s, ID: %d", device, req_id)
|
|
self.send_rpc_reply(device, req_id, content)
|
|
|
|
def send_rpc_reply(self, device=None, req_id=None, content=None, success_sent=None, wait_for_publish=None,
|
|
quality_of_service=0):
|
|
try:
|
|
self.__rpc_reply_sent = True
|
|
rpc_response = {"success": False}
|
|
if success_sent is not None:
|
|
if success_sent:
|
|
rpc_response["success"] = True
|
|
if device is not None and success_sent is not None:
|
|
self.tb_client.client.gw_send_rpc_reply(device, req_id, dumps(rpc_response),
|
|
quality_of_service=quality_of_service)
|
|
elif device is not None and req_id is not None and content is not None:
|
|
self.tb_client.client.gw_send_rpc_reply(device, req_id, content, quality_of_service=quality_of_service)
|
|
elif device is None and success_sent is not None:
|
|
self.tb_client.client.send_rpc_reply(req_id, dumps(rpc_response), quality_of_service=quality_of_service,
|
|
wait_for_publish=wait_for_publish)
|
|
elif device is None and content is not None:
|
|
self.tb_client.client.send_rpc_reply(req_id, content, quality_of_service=quality_of_service,
|
|
wait_for_publish=wait_for_publish)
|
|
self.__rpc_reply_sent = False
|
|
except Exception as e:
|
|
log.exception(e)
|
|
|
|
def register_rpc_request_timeout(self, content, timeout, topic, cancel_method):
|
|
# Put request in outgoing RPC queue. It will be eventually dispatched.
|
|
self.__rpc_register_queue.put({"topic": topic, "data": (content, timeout, cancel_method)}, False)
|
|
|
|
def cancel_rpc_request(self, rpc_request):
|
|
content = self.__rpc_requests_in_progress[rpc_request][0]
|
|
self.send_rpc_reply(device=content["device"], req_id=content["data"]["id"], success_sent=False)
|
|
|
|
def _attribute_update_callback(self, content, *args):
|
|
log.debug("Attribute request received with content: \"%s\"", content)
|
|
log.debug(args)
|
|
if content.get('device') is not None:
|
|
try:
|
|
self.__connected_devices[content["device"]]["connector"].on_attributes_update(content)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
else:
|
|
self._attributes_parse(content)
|
|
|
|
def __form_statistics(self):
|
|
summary_messages = {"eventsProduced": 0, "eventsSent": 0}
|
|
telemetry = {}
|
|
for connector in self.available_connectors:
|
|
connector_camel_case = connector.lower().replace(' ', '')
|
|
telemetry[(connector_camel_case + ' EventsProduced').replace(' ', '')] = \
|
|
self.available_connectors[connector].statistics['MessagesReceived']
|
|
self.available_connectors[connector].statistics['MessagesReceived'] = 0
|
|
telemetry[(connector_camel_case + ' EventsSent').replace(' ', '')] = \
|
|
self.available_connectors[connector].statistics['MessagesSent']
|
|
self.available_connectors[connector].statistics['MessagesSent'] = 0
|
|
summary_messages['eventsProduced'] += telemetry[
|
|
str(connector_camel_case + ' EventsProduced').replace(' ', '')]
|
|
summary_messages['eventsSent'] += telemetry[
|
|
str(connector_camel_case + ' EventsSent').replace(' ', '')]
|
|
summary_messages.update(**telemetry)
|
|
return summary_messages
|
|
|
|
def add_device_async(self, data):
|
|
if data['deviceName'] not in self.__saved_devices:
|
|
self.__async_device_actions_queue.put((DeviceActions.CONNECT, data))
|
|
return Status.SUCCESS
|
|
else:
|
|
return Status.FAILURE
|
|
|
|
def add_device(self, device_name, content, device_type=None):
|
|
if device_name not in self.__saved_devices:
|
|
device_type = device_type if device_type is not None else 'default'
|
|
self.__connected_devices[device_name] = {**content, "device_type": device_type}
|
|
self.__saved_devices[device_name] = {**content, "device_type": device_type}
|
|
self.__save_persistent_devices()
|
|
self.tb_client.client.gw_connect_device(device_name, device_type)
|
|
|
|
def update_device(self, device_name, event, content):
|
|
if event == 'connector' and self.__connected_devices[device_name].get(event) != content:
|
|
self.__save_persistent_devices()
|
|
self.__connected_devices[device_name][event] = content
|
|
|
|
def del_device_async(self, data):
|
|
if data['deviceName'] in self.__saved_devices:
|
|
self.__async_device_actions_queue.put((DeviceActions.DISCONNECT, data))
|
|
return Status.SUCCESS
|
|
else:
|
|
return Status.FAILURE
|
|
|
|
def del_device(self, device_name):
|
|
del self.__connected_devices[device_name]
|
|
del self.__saved_devices[device_name]
|
|
self.tb_client.client.gw_disconnect_device(device_name)
|
|
self.__save_persistent_devices()
|
|
|
|
def get_devices(self):
|
|
return self.__connected_devices
|
|
|
|
def __process_async_device_actions(self):
|
|
while not self.stopped:
|
|
if not self.__async_device_actions_queue.empty():
|
|
action, data = self.__async_device_actions_queue.get()
|
|
if action == DeviceActions.CONNECT:
|
|
self.add_device(data['deviceName'], {CONNECTOR_PARAMETER: self.available_connectors[data['name']]}, data.get('deviceType'))
|
|
elif action == DeviceActions.DISCONNECT:
|
|
self.del_device(data['deviceName'])
|
|
else:
|
|
sleep(.2)
|
|
|
|
def __load_persistent_connector_keys(self):
|
|
persistent_keys = {}
|
|
if PERSISTENT_GRPC_CONNECTORS_KEY_FILENAME in listdir(self._config_dir) and \
|
|
path.getsize(self._config_dir + PERSISTENT_GRPC_CONNECTORS_KEY_FILENAME) > 0:
|
|
try:
|
|
persistent_keys = load_file(self._config_dir + PERSISTENT_GRPC_CONNECTORS_KEY_FILENAME)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
log.debug("Loaded keys: %s", persistent_keys)
|
|
else:
|
|
log.debug("Persistent keys file not found")
|
|
return persistent_keys
|
|
|
|
def __save_persistent_keys(self, persistent_keys):
|
|
try:
|
|
with open(self._config_dir + PERSISTENT_GRPC_CONNECTORS_KEY_FILENAME, 'w') as persistent_keys_file:
|
|
persistent_keys_file.write(dumps(persistent_keys, indent=2, sort_keys=True))
|
|
except Exception as e:
|
|
log.exception(e)
|
|
|
|
def __load_persistent_devices(self):
|
|
devices = None
|
|
if CONNECTED_DEVICES_FILENAME in listdir(self._config_dir) and \
|
|
path.getsize(self._config_dir + CONNECTED_DEVICES_FILENAME) > 0:
|
|
try:
|
|
devices = load_file(self._config_dir + CONNECTED_DEVICES_FILENAME)
|
|
except Exception as e:
|
|
log.exception(e)
|
|
else:
|
|
open(self._config_dir + CONNECTED_DEVICES_FILENAME, 'w').close()
|
|
|
|
if devices is not None:
|
|
log.debug("Loaded devices:\n %s", devices)
|
|
for device_name in devices:
|
|
try:
|
|
if self.available_connectors.get(devices[device_name]):
|
|
self.__connected_devices[device_name] = {
|
|
"connector": self.available_connectors[devices[device_name]]}
|
|
except Exception as e:
|
|
log.exception(e)
|
|
continue
|
|
else:
|
|
log.debug("No device found in connected device file.")
|
|
self.__connected_devices = {} if self.__connected_devices is None else self.__connected_devices
|
|
|
|
def __save_persistent_devices(self):
|
|
with open(self._config_dir + CONNECTED_DEVICES_FILENAME, 'w') as config_file:
|
|
try:
|
|
data_to_save = {}
|
|
for device in self.__connected_devices:
|
|
if self.__connected_devices[device]["connector"] is not None:
|
|
data_to_save[device] = self.__connected_devices[device]["connector"].get_name()
|
|
config_file.write(dumps(data_to_save, indent=2, sort_keys=True))
|
|
except Exception as e:
|
|
log.exception(e)
|
|
log.debug("Saved connected devices.")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
TBGatewayService(
|
|
path.dirname(path.dirname(path.abspath(__file__))) + '/config/tb_gateway.yaml'.replace('/', path.sep))
|