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log_2_excel.py
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log_2_excel.py
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import logging
import os
import sqlite3
import json
import time
import argparse
import mqtt_logger
import numpy as np
import pandas as pd
import time
import paho.mqtt.client as mqtt
from dotenv import load_dotenv
from rich.logging import RichHandler
from datetime import datetime
from mhp import topics
class DataLogger:
"""Log run data into excel files.
Parameters
----------
db_file : str
Filepath to where the SQLite database will be stored.
xl_file : str
Filepath to where all Excel logs will be stored.
broker_ip : str
The hostname or IP of the MQTT broker, default value is 'localhost'
port : int
The network port of the server host to connect to, default value is 1883.
verbose: bool
Sets the logginng output of Recorder, default value is False.
username : str
Username for MQTT broker.
password : str
Password for MQTT broker.
fname : str
Beginning portion of filenaming system, default value is 'runfile'.
Attributes
----------
v3_start : str
The 'v3/start' topic.
broker_ip : str
The hostname or IP of the MQTT broker, default value is 'localhost'
port : int
The network port of the server host to connect to, default value is 1883.
verbose: bool
Sets the logginng output of Recorder, default value is False.
username : str
Username for MQTT broker.
password : str
Password for MQTT broker.
mqtt_client: paho.mqtt.client
MQTT client that connects to the broker and recives the messages.
logging : bool
Whether we are currently logging or not.
MQTT_LOG_FILE : str
Filepath to where the SQLite database will be stored.
EXCEL_LOG_FILE : str
Filepath to where all Excel logs will be stored.
time : str
Time that a log begins recording, in HH-MM-SS format.
recorder: mqtt_logger.Recorder
Recorder class that will record MQTT logs into SQLite database.
"""
def __init__(
self,
db_file,
xl_file,
broker_ip='localhost',
port=1883,
verbose=False,
username=None,
password=None,
fname="runfile"
):
self.v3_start = str(topics.V3.start)
self.broker_ip = broker_ip
self.port = port
self.uname = username
self.pword = password
self.verbose = verbose
self.mqtt_client = None
self.logging = False
self.MQTT_LOG_FILE = db_file
self.EXCEL_LOG_FILE = xl_file + fname
self.time = ""
self.recorder = None
def on_connect(self, client, userdata, flags, rc):
"""Callback for when client receives a CONNNACK response."""
print("\nConnected with result code " + str(rc) + ".")
client.subscribe(self.v3_start)
def on_disconnect(self, client, userdata, msg):
"""Callback called when user is disconnected from the broker."""
print("\nDisconnected from broker.")
def on_log(self, client, userdata, level, buf):
"""The callback to log all MQTT information"""
print("\nlog: ", buf)
def on_message(self, client, userdata, msg):
"""The callback for when a PUBLISH message is received."""
logging.info(f"\nReceived topic: " + str(msg.topic) + ", with message " + str(msg.payload))
if msg.topic == self.v3_start:
received_data = str(msg.payload.decode("utf-8"))
dict_data = json.loads(received_data)
if dict_data["start"]:
if not self.logging:
self.start_logging()
else:
logging.warning("Already currently logging.")
else:
if self.logging:
self.stop_logging()
else:
logging.warning("Logging not started yet.")
def start_logging(self):
"""Start the Data Logger"""
self.logging = True
self.time = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
self.recorder = mqtt_logger.Recorder(
sqlite_database_path=self.MQTT_LOG_FILE+"MQTT_log_"+self.time+".db",
broker_address=self.broker_ip,
verbose=self.verbose,
username=self.uname,
password=self.pword
)
self.recorder.start()
def stop_logging(self):
"""Stop the Data Logger"""
self.logging = False
db_path = self.MQTT_LOG_FILE + "MQTT_log_" + self.time + ".db"
xl_path = self.EXCEL_LOG_FILE + "_" + self.time + ".xlsx"
#self.convertXL(db_path, xl_path)
sqlite3.connect(db_path).close()
self.recorder.stop()
def start(self):
"""Start Data Logger & MQTT Client"""
self.mqtt_client = mqtt.Client()
self.mqtt_client.on_connect = self.on_connect
self.mqtt_client.on_message = self.on_message
if self.uname is not None and self.pword is not None:
self.mqtt_client.username_pw_set(self.uname, self.pword)
self.mqtt_client.on_log = self.on_log
self.mqtt_client.on_disconnect = self.on_disconnect
self.mqtt_client.connect_async(self.broker_ip, self.port, 60)
logging.info("Connected MQTT client.")
self.mqtt_client.loop_start()
while True:
time.sleep(1)
def stop(self):
"""Stops Data Logger & MQTT Client"""
self.mqtt_client.disconnect()
self.mqtt_client.loop_stop()
logging.info("Disconnected MQTT client.")
def parse_module_data(self, module_id: int, cur: sqlite3.Cursor) -> pd.DataFrame:
"""Parses the module data if it is from the sensors"""
query = f"""
SELECT * FROM LOG
WHERE TOPIC='{topics.WirelessModule.id(module_id).data}'
"""
# Store all of the flattened data dicts inside a big array before converting to a dataframe
data_arr = []
for data_row in cur.execute(query).fetchall():
# Unbundle SQL row into individual columns
(id, run_id, unix_time, topic, message) = data_row
# Decode binary string messages into json
try:
utf8_data = message.decode("utf-8")
json_data = json.loads(utf8_data)
except:
logging.error(f"Message not utf-8 encoded. Skipping id:{id}.")
continue
# Retrieve sensor data from python dict
data_dict = {"unix_time": unix_time, "run_id": run_id}
for sensor in json_data["sensors"]:
sensor_name = str(module_id) + "_" + sensor["type"]
sensor_value = sensor["value"]
# For nested sensor values
if isinstance(sensor_value, dict):
for (sub_sensor, sub_sensor_value) in sensor_value.items():
sub_sensor_name = sensor_name + "_" + sub_sensor
data_dict[sub_sensor_name] = sub_sensor_value
# For single sensor values
else:
data_dict[sensor_name] = sensor_value
data_arr.append(data_dict)
return pd.DataFrame(data_arr)
def parse_module_battery(self, module_id: int, cur: sqlite3.Cursor) -> pd.DataFrame:
"""Parses the module data if it is from the battery."""
query = f"""
SELECT * FROM LOG
WHERE TOPIC='{topics.WirelessModule.id(module_id).battery}'
"""
# Store all of the data dicts inside a big array before converting to a dataframe
data_arr = []
for data_row in cur.execute(query).fetchall():
# Unbundle SQL row into individual columns
(id, run_id, unix_time, topic, message) = data_row
# Decode binary string messages into json
try:
utf8_data = message.decode("utf-8")
json_data = json.loads(utf8_data)
except:
logging.error(f"Message not utf-8 encoded. Skipping id:{id}.")
continue
data_arr.append(
{
"unix_time": unix_time,
"run_id": run_id,
f"{module_id}_voltage": json_data["voltage"],
}
)
return pd.DataFrame(data_arr)
def parse_strain_mpu(self, cur: sqlite3.Cursor) -> pd.DataFrame:
"""Parse strain and mpu sensor data."""
#TODO: make this a topic in common which we can import
query = f"""
SELECT * FROM LOG
WHERE TOPIC='{"/v3/mpu_strain"}'
"""
# Store all of the flattened data dicts inside a big array before converting to a dataframe
data_arr = []
for data_row in cur.execute(query).fetchall():
# Unbundle SQL row into individual columns
(id, run_id, unix_time, topic, message) = data_row
# Decode binary string messages into json
try:
utf8_data = message.decode("utf-8")
json_data = json.loads(utf8_data)
except:
logging.error(f"Message not utf-8 encoded. Skipping id:{id}.")
continue
# Retrieve sensor data from python dict
data_dict = {"unix_time": unix_time, "run_id": run_id}
for sensor in json_data["sensors"]:
sensor_name = sensor["type"]
sensor_value = sensor["value"]
# For nested sensor values
if isinstance(sensor_value, dict):
for (sub_sensor, sub_sensor_value) in sensor_value.items():
sub_sensor_name = sensor_name + "_" + sub_sensor
data_dict[sub_sensor_name] = sub_sensor_value
# For single sensor values
else:
data_dict[sensor_name] = sensor_value
data_arr.append(data_dict)
return pd.DataFrame(data_arr)
def parse_all_raw(self, cur: sqlite3.Cursor) -> pd.DataFrame:
"""Convert all data in the LOG table into a single dataframe."""
# Store all of the data dicts inside a big array before converting to a dataframe
data_arr = []
for data_row in cur.execute("SELECT * FROM LOG").fetchall():
# Unbundle SQL row into individual columns
(id, run_id, unix_time, topic, message) = data_row
# Decode the data from a binary string to utf-8
try:
data_arr.append(
{
"id": id,
"topic": topic,
"unix_time": unix_time,
"run_id": run_id,
"data": message.decode("utf-8"),
}
)
except:
logging.error(f"Message not utf-8 encoded. Skipping id:{id}.")
continue
return pd.DataFrame(data_arr)
def convertXL(self, db_path, xl_path):
"""Convert SQLite database logs into excel files."""
# Connect to the sqlite database that has all of the MQTT logs
con = sqlite3.connect(db_path)
cur = con.cursor()
with pd.ExcelWriter(xl_path, engine="xlsxwriter") as writer:
for module_id in [1, 2, 3, 4]:
module_data = self.parse_module_data(module_id, cur)
module_battery = self.parse_module_battery(module_id, cur)
if not module_data.empty:
logging.info(f"Exporting wireless module {module_id} sensor data")
module_data.to_excel(
writer,
sheet_name=f"module_{module_id}_data",
index=False,
)
if not module_battery.empty:
logging.info(f"Exporting wireless module {module_id} battery data")
module_battery.to_excel(
writer,
sheet_name=f"module_{module_id}_battery",
index=False,
)
module_strain_mpu = self.parse_strain_mpu(cur)
if not module_strain_mpu.empty:
logging.info("Exporting Strain and MPU sensor data")
module_strain_mpu.to_excel(
writer,
sheet_name="strain_mpu_data",
index=False
)
logging.info(f"Exporting all data to excel")
self.parse_all_raw(cur).to_excel(writer, sheet_name="raw_data", index=False)
con.close()
parser = argparse.ArgumentParser(
description="Data Logger",
add_help=True,
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument(
"--host",
action="store",
type=str,
default="localhost",
help="""Address of the MQTT broker""",
)
parser.add_argument(
"-v",
"--verbose",
action="store_true",
default=False,
help="""Verbose logging output""",
)
parser.add_argument(
"-u",
"--username",
action="store",
type=str,
default=None,
help="""Username for MQTT broker""",
)
parser.add_argument(
"-p",
"--password",
action="store",
type=str,
default=None,
help="""Password for MQTT broker""",
)
parser.add_argument(
"-f",
"--filename",
action="store",
type=str,
default="runfile",
help="""File naming system for excel conversion.""",
)
if __name__ == "__main__":
# Load env variables
load_dotenv()
mqtt_log_file = os.getenv("MQTT_LOG_FILE")
excel_log_file = os.getenv("EXCEL_LOG_FILE")
# Read command line arguments
args = parser.parse_args()
logging.basicConfig(
format="%(levelname)-8s [%(filename)s] %(message)s", level=logging.INFO
)
DATA_LOGGER = DataLogger(
db_file=mqtt_log_file,
xl_file=excel_log_file,
broker_ip=args.host,
verbose=args.verbose,
username=args.username,
password=args.password,
fname=args.filename
)
DATA_LOGGER.start()