242 lines
8.3 KiB
Python
242 lines
8.3 KiB
Python
#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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# __author__ = 'HKC'
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import io
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import logging
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from logging.handlers import RotatingFileHandler
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import json
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import datetime
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import time
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import sys
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import os
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from paho.mqtt import client as mqtt_client
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import random
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import getopt
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# 日志文件路径
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LOG_FILE_PATH = "./gwsimulator.log"
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CFG_FILE_PATH = "./config.json"
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# create logger
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logger = logging.getLogger(__name__)
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DAEMON_MODE = 0
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def log_setup():
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if len(logger.handlers) == 0:
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level = logging.DEBUG
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if os.path.exists(LOG_FILE_PATH):
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file_size = os.path.getsize(LOG_FILE_PATH)
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if file_size > 15000000:
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timestamp = time.mktime(datetime.datetime.now().timetuple())
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time_fmt = datetime.datetime.fromtimestamp(timestamp).strftime("%Y%m%d_%H%M")
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new_name = LOG_FILE_PATH + "." + time_fmt
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os.rename(LOG_FILE_PATH, new_name)
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time.sleep(1)
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handler = RotatingFileHandler(LOG_FILE_PATH, mode='a', maxBytes=30 * 1024 * 1024, backupCount=10, encoding=None,
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delay=False)
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formatter = logging.Formatter(
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"[%(asctime)s] [%(module)s.%(funcName)s][%(lineno)s] [%(levelname)s] : %(message)s")
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handler.setFormatter(formatter)
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if DAEMON_MODE == 0:
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console_handler = logging.StreamHandler()
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formatter = logging.Formatter("[%(asctime)s] [%(levelname)s] : %(message)s", "%Y-%m-%d %H:%M:%S")
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console_handler.setFormatter(formatter)
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logger.addHandler(console_handler)
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logger.addHandler(handler)
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logger.setLevel(level)
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logger.info("===== log start, Welcome to the Earth ====")
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# 保存异常信息
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def dump_exception_msg(e, ip="127.0.0.1"):
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exc_type, exc_value, exc_traceback = sys.exc_info()
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msg = "[%s] %s %s %s" % (ip, sys._getframe(1).f_code.co_name, exc_type, exc_value)
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logger.error( msg )
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logger.exception(e)
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def rand(lower_limit=None, upper_limit=None):
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return random.randint(lower_limit, upper_limit)
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class MqttConfigure:
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def __init__(self):
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self.broker_ip = '127.0.0.1'
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self.port = 8764
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self.username = 'username'
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self.passwd = 'passwd'
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self.publish_topic = 'public'
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self.publish_interval = 5000
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self.publish_qos = 0
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self.subscribe_qos = 0
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self.subscriber_topic = ''
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self.client_id = f'python-mqtt-{random.randint(0, 1000)}'
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self.max_publish_count = 0
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self.fsuCodes = []
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class PublishData:
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def __init__(self):
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self.publish_data = {}
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def read_configure(mqtt_conf=None, publish_data=None):
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abspath = os.path.abspath(__file__)
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json_path = os.path.dirname(abspath) + "/" + CFG_FILE_PATH # '/config.json'
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try:
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with io.open(json_path, 'r') as f:
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json_data = json.load(f)
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mqtt_conf.broker_ip = json_data['broker_ip']
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mqtt_conf.port = json_data['port']
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mqtt_conf.username = json_data['username']
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mqtt_conf.passwd = json_data['passwd']
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mqtt_conf.publish_topic = json_data['publish_topic']
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mqtt_conf.publish_interval = json_data['publish_interval']
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mqtt_conf.publish_qos = json_data['publish_qos']
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mqtt_conf.subscribe_qos = json_data['subscribe_qos']
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mqtt_conf.subscriber_topic = json_data['subcriber_topic']
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mqtt_conf.client_id = json_data['client_id']
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# 2025.03.11 增加读取多个FsuCode，用于模拟多个不同的设备
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mqtt_conf.fsuCodes = json_data['FsuCodes']
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publish_data.publish_data = json_data['publish_data']
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except Exception as e:
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dump_exception_msg(e)
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def pub_connect_mqtt():
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def on_connect(client, userdata, flags, rc):
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if rc == 0:
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logger.info("Connected to MQTT Broker!")
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else:
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logger.error("Failed to connect, return code %d", rc)
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client = mqtt_client.Client(protocol=3, client_id=mqtt_conf.client_id)
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client.on_connect = on_connect
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client.username_pw_set(username=mqtt_conf.username, password=mqtt_conf.passwd)
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client.connect(host=mqtt_conf.broker_ip, port=mqtt_conf.port, keepalive=60)
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time.sleep(1)
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return client
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def sub_connect_mqtt():
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def on_connect(client, userdata, flags, rc):
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if rc == 0:
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logger.info("Connected to MQTT Broker!")
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else:
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logger.error("Failed to connect, return code %d", rc)
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def on_message(client, userdata, msg):
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logger.info(msg.topic + " " + str(msg.payload))
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client = mqtt_client.Client(protocol=3,client_id=mqtt_conf.client_id)
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client.on_connect = on_connect
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client.on_message = on_message
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client.username_pw_set(username=mqtt_conf.username, password=mqtt_conf.passwd)
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client.connect(host=mqtt_conf.broker_ip, port=mqtt_conf.port, keepalive=60)
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time.sleep(1)
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return client
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# 根据配置信息构建发布的报文消息
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# 2025.03.11 增加函数参数，处理制定的fsucode
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def build_publish_msg(fsu_code=None):
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pd = publish_data.publish_data
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# msg = {"FsuCode": pd["FsuCode"], "type": pd["type"], "IdCodeContent": [],
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# "TimeStamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())}
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msg = {"FsuCode": fsu_code, "type": pd["type"], "IdCodeContent": [],
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"TimeStamp": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())}
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for one in pd["IdCodeContent"]:
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idcode = one["OID"]
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factor = one["Factor"]
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t = one["type"]
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value = one["Value"]
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if t == "random_number":
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lo = one["RND"][0]
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up = one["RND"][1]
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value = rand(lo, up)
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msg['IdCodeContent'].append({
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"OID": idcode,
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"Factor": factor,
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"Value": value
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})
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json_data = json.dumps(msg, ensure_ascii=False)
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return json_data
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def publish(client):
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msg_count = 0
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while True:
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if mqtt_conf.max_publish_count != 0 and msg_count > mqtt_conf.max_publish_count:
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break
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# 2025.03.11 增加循环处理多个FsuCode，用于模拟多个不同的设备
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for fsu_code in mqtt_conf.fsuCodes:
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logger.info("Processing fsuCode: " + fsu_code)
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msg = build_publish_msg(fsu_code)
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result = client.publish(topic=mqtt_conf.publish_topic, payload=msg, qos=mqtt_conf.publish_qos)
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# result: [0, 1]
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status = result[0]
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msg_count += 1
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if status == 0:
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logger.info(f"Send `#{msg_count}` message to topic `{mqtt_conf.publish_topic}`: `{msg}` ")
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else:
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logger.error(f"Failed to send `#{msg_count}` message to topic {mqtt_conf.publish_topic}")
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time.sleep(mqtt_conf.publish_interval/1000)
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if __name__ == '__main__':
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log_setup()
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try:
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running_mode = "pub"
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argv = sys.argv
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if len(argv) == 1:
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print('Usage: gwsimulator.py -m <pub|sub> -c <config_file.json>')
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print(' or: gwsimulator.py --mode=pub|sub -c <config_file.json>')
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sys.exit(2)
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opts, args = getopt.getopt(argv[1:], "m:c:", ["mode=", "config="])
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for opt, arg in opts:
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if opt in ("-m", "--mode"):
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running_mode = arg
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elif opt in("-c", "--config"):
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CFG_FILE_PATH = arg
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else:
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print('Usage: gwsimulator.py -m <pub|sub> -c <config_file.json>')
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print(' or: gwsimulator.py --mode=pub|sub -c <config_file.json>')
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sys.exit(2)
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logger.info(f"Running in {running_mode} mode")
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mqtt_conf = MqttConfigure()
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publish_data = PublishData()
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if sys.version_info >= (3, 0):
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read_configure(mqtt_conf, publish_data)
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else:
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logger.error("I need python version > 3.0.0")
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sys.exit(2)
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if running_mode.lower() == "pub":
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client = pub_connect_mqtt()
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client.loop_start()
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publish(client)
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else:
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client = sub_connect_mqtt()
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client.subscribe(topic=mqtt_conf.subscriber_topic, qos=mqtt_conf.subscribe_qos)
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client.loop_forever()
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except KeyboardInterrupt:
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logger.error("Disconnected from broker and EXIT")
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client.disconnect()
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logger.info("===== log end, I will be back ====")
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