mirror of
https://github.com/thingsboard/thingsboard-gateway
synced 2025-10-26 22:31:42 +08:00
90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
# Copyright 2021. ThingsBoard
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from time import time
|
|
|
|
from thingsboard_gateway.storage.event_storage import EventStorage
|
|
from thingsboard_gateway.storage.sqlite.database import Database
|
|
from queue import Queue
|
|
from thingsboard_gateway.storage.sqlite.database_request import DatabaseRequest
|
|
from thingsboard_gateway.storage.sqlite.database_action_type import DatabaseActionType
|
|
#
|
|
# No need to import DatabaseResponse, responses come to this component to be deconstructed
|
|
#
|
|
from logging import getLogger
|
|
|
|
log = getLogger("storage")
|
|
|
|
|
|
class StorageHandler(EventStorage):
|
|
"""
|
|
HIGH level api for thingsboard_gateway main loop
|
|
"""
|
|
|
|
def __init__(self, config):
|
|
log.info("Sqlite Storage initializing...")
|
|
log.info("Initializing read and process queues")
|
|
self.processQueue = Queue(-1)
|
|
self.readQueue = Queue(-1)
|
|
|
|
self.db = Database(config, self.processQueue)
|
|
|
|
self.db.setReadQueue(self.readQueue)
|
|
self.db.setProcessQueue(self.processQueue)
|
|
|
|
self.db.init_table()
|
|
log.info("Sqlite storage initialized!")
|
|
self.delete_time_point = None
|
|
self.last_read = time()
|
|
self.stopped = False
|
|
|
|
def get_event_pack(self):
|
|
if not self.stopped:
|
|
self.delete_time_point = self.last_read
|
|
data_from_storage = self.read_data(self.last_read)
|
|
self.last_read = time()
|
|
|
|
return [item[0] for item in data_from_storage or []]
|
|
else:
|
|
return []
|
|
|
|
def event_pack_processing_done(self):
|
|
if not self.stopped:
|
|
self.delete_data(self.delete_time_point)
|
|
|
|
def read_data(self, ts):
|
|
return self.db.read_data(ts)
|
|
|
|
def delete_data(self, ts):
|
|
return self.db.delete_data(ts)
|
|
|
|
def put(self, message):
|
|
try:
|
|
if not self.stopped:
|
|
_type = DatabaseActionType.WRITE_DATA_STORAGE
|
|
request = DatabaseRequest(_type, message)
|
|
|
|
log.info("Sending data to storage")
|
|
self.processQueue.put(request)
|
|
self.db.process()
|
|
return True
|
|
else:
|
|
return False
|
|
except Exception as e:
|
|
log.exception(e)
|
|
|
|
def stop(self):
|
|
self.db.closeDB()
|
|
self.stopped = True
|