BW3-Core/boswatch/packet.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""!
    ____  ____  ______       __      __       __       _____
   / __ )/ __ \/ ___/ |     / /___ _/ /______/ /_     |__  /
  / __  / / / /\__ \| | /| / / __ `/ __/ ___/ __ \     /_ <
 / /_/ / /_/ /___/ /| |/ |/ / /_/ / /_/ /__/ / / /   ___/ /
/_____/\____//____/ |__/|__/\__,_/\__/\___/_/ /_/   /____/
                German BOS Information Script
                     by Bastian Schroll

@file:        packet.py
@date:        06.01.2018
@author:      Bastian Schroll
@description: Class for a BOSWatch data packet
"""
import logging
import time

logging.debug("- %s loaded", __name__)


class Packet:
    """!Class implementation of an BOSWatch packet"""

    def __init__(self, bwPacket=None):
        """!Build a new BOSWatch packet or copy existing data in it

        @param bwPacket: Existing data to copy"""
        if bwPacket is None:
            logging.debug("create new bwPacket")
            self._packet = {"timestamp": time.time()}
        else:
            logging.debug("create bwPacket from string")
            self._packet = eval(str(bwPacket.strip()))

    def __str__(self):
        """!Return the intern _packet dict as string"""
        return str(self._packet)

    def set(self, fieldName, value):
        """!Set a field in the intern _packet dict

        @param fieldName: Name of the data to set
        @param value: Value to set"""
        self._packet[fieldName] = str(value)

    def get(self, fieldName):
        """!Returns the value from a single field.
        If field not existing `None` is returned

        @param fieldName: Name of the field
        @return Value or None"""
        try:
            return str(self._packet[fieldName])
        except:
            logging.warning("field not found: %s", fieldName)
            return None

    def printInfo(self):
        """!Print a info message to the log on INFO level.
        Contains the most useful info about this packet.
        @todo not complete yet - must be edit to print nice formatted messages on console
        """
        logging.info("[%s]", self.get("mode"))