forked from vikt0rm/dbus-goecharger
289 lines
10 KiB
Python
Executable File
289 lines
10 KiB
Python
Executable File
#!/usr/bin/env python
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# import normal packages
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import platform
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import logging
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import sys
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import os
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import sys
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if sys.version_info.major == 2:
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import gobject
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else:
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from gi.repository import GLib as gobject
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import sys
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import time
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import requests # for http GET
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import configparser # for config/ini file
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# our own packages from victron
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sys.path.insert(1, os.path.join(os.path.dirname(__file__), '/opt/victronenergy/dbus-systemcalc-py/ext/velib_python'))
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from vedbus import VeDbusService
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class DbusGoeControllerService:
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def __init__(self, servicename, paths, productname='go-eController', connection='go-eController HTTP JSON service'):
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config = self._getConfig()
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deviceinstance = int(config['DEFAULT']['Deviceinstance'])
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self._dbusservice = VeDbusService("{}.http_{:02d}".format(servicename, deviceinstance))
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self._paths = paths
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logging.debug("%s /DeviceInstance = %d" % (servicename, deviceinstance))
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paths_wo_unit = [
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'/Status', # value 'car' 1: charging station ready, no vehicle 2: vehicle loads 3: Waiting for vehicle 4: Charge finished, vehicle still connected
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'/Mode'
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]
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#get data from go-eController
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data = self._getGoeControllerData()
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# Create the management objects, as specified in the ccgx dbus-api document
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self._dbusservice.add_path('/Mgmt/ProcessName', __file__)
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self._dbusservice.add_path('/Mgmt/ProcessVersion', 'Unkown version, and running on Python ' + platform.python_version())
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self._dbusservice.add_path('/Mgmt/Connection', connection)
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# Create the mandatory objects
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self._dbusservice.add_path('/DeviceInstance', deviceinstance)
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self._dbusservice.add_path('/ProductId', 0xFFFF) #
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self._dbusservice.add_path('/ProductName', productname)
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if data:
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self._dbusservice.add_path('/FirmwareVersion', data['fwv'])
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self._dbusservice.add_path('/Serial', data['sse'])
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self._dbusservice.add_path('/CustomName', data['fna'])
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else:
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self._dbusservice.add_path('/CustomName', productname)
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self._dbusservice.add_path('/Connected', 1)
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self._dbusservice.add_path('/UpdateIndex', 0)
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# add paths without units
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for path in paths_wo_unit:
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self._dbusservice.add_path(path, None)
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# add path values to dbus
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for path, settings in self._paths.items():
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self._dbusservice.add_path(
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path, settings['initial'], gettextcallback=settings['textformat'], writeable=True, onchangecallback=self._handlechangedvalue)
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# last update
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self._lastUpdate = 0
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# charging time in float
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self._chargingTime = 0.0
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# add _update function 'timer'
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gobject.timeout_add(250, self._update) # pause 250ms before the next request
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# add _signOfLife 'timer' to get feedback in log every 5minutes
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gobject.timeout_add(self._getSignOfLifeInterval()*60*1000, self._signOfLife)
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def _getConfig(self):
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config = configparser.ConfigParser()
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config.read("%s/config.ini" % (os.path.dirname(os.path.realpath(__file__))))
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return config
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def _getSignOfLifeInterval(self):
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config = self._getConfig()
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value = config['DEFAULT']['SignOfLifeLog']
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if not value:
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value = 0
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return int(value)
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def _getGoeControllerStatusUrl(self):
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config = self._getConfig()
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accessType = config['DEFAULT']['AccessType']
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if accessType == 'OnPremise':
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URL = "http://%s/api/status?filter=sse,fna,ccn,ccp,cpc,cec,usv,fwv" % (config['ONPREMISE']['Host'])
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else:
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raise ValueError("AccessType %s is not supported" % (config['DEFAULT']['AccessType']))
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return URL
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def _getGoeControllerSetUrl(self, parameter, value):
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config = self._getConfig()
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accessType = config['DEFAULT']['AccessType']
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if accessType == 'OnPremise':
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URL = "http://%s/api/set?%s=%s" % (config['ONPREMISE']['Host'], parameter, value)
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else:
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raise ValueError("AccessType %s is not supported" % (config['DEFAULT']['AccessType']))
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return URL
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def _setGoeControllerValue(self, parameter, value):
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URL = self._getGoeControllerSetUrl(parameter, str(value))
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request_data = requests.get(url = URL)
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# check for response
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if not request_data:
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raise ConnectionError("No response from go-eController - %s" % (URL))
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json_data = request_data.json()
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# check for Json
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if not json_data:
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raise ValueError("Converting response to JSON failed")
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if json_data[parameter] == str(value):
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return True
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else:
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logging.warning("go-eController parameter %s not set to %s" % (parameter, str(value)))
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return False
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def _getGoeControllerData(self):
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URL = self._getGoeControllerStatusUrl()
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try:
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request_data = requests.get(url = URL, timeout=5)
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except Exception:
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return None
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# check for response
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if not request_data:
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raise ConnectionError("No response from go-eController - %s" % (URL))
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json_data = request_data.json()
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# check for Json
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if not json_data:
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raise ValueError("Converting response to JSON failed")
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return json_data
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def _signOfLife(self):
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logging.info("--- Start: sign of life ---")
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logging.info("Last _update() call: %s" % (self._lastUpdate))
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logging.info("Last '/Ac/Power': %s" % (self._dbusservice['/Ac/Power']))
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logging.info("--- End: sign of life ---")
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return True
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def _update(self):
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try:
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#get data from go-eController
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data = self._getGoeControllerData()
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if data is not None:
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#send data to DBus
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grid_category_index = 1
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current_l1 = data['cpc'][grid_category_index][0]
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current_l2 = data['cpc'][grid_category_index][1]
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current_l3 = data['cpc'][grid_category_index][2]
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self._dbusservice['/Ac/L1/Current'] = current_l1
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self._dbusservice['/Ac/L2/Current'] = current_l2
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self._dbusservice['/Ac/L3/Current'] = current_l3
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sum_power = data['ccp'][grid_category_index]
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current_sum = current_l1 + current_l2 + current_l3
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self._dbusservice['/Ac/L1/Power'] = current_l1 / current_sum * sum_power
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self._dbusservice['/Ac/L2/Power'] = current_l2 / current_sum * sum_power
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self._dbusservice['/Ac/L3/Power'] = current_l3 / current_sum * sum_power
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self._dbusservice['/Ac/Power'] = sum_power
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self._dbusservice['/Ac/L1/Voltage'] = data['usv'][0]['u1']
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self._dbusservice['/Ac/L2/Voltage'] = data['usv'][0]['u2']
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self._dbusservice['/Ac/L3/Voltage'] = data['usv'][0]['u3']
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self._dbusservice['/Ac/N/Voltage'] = data['usv'][0]['uN']
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self._dbusservice['/Ac/Energy/Forward'] = data['cec'][grid_category_index][0] / 1000.
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self._dbusservice['/Ac/Energy/Backward'] = data['cec'][grid_category_index][1] / 1000.
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#logging
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logging.debug("Smartmeter Consumption (/Ac/Power): %s" % (self._dbusservice['/Ac/Power']))
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logging.debug("Smartmeter Forward (/Ac/Energy/Forward): %s" % (self._dbusservice['/Ac/Energy/Forward']))
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logging.debug("---")
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# increment UpdateIndex - to show that new data is available
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index = self._dbusservice['/UpdateIndex'] + 1 # increment index
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if index > 255: # maximum value of the index
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index = 0 # overflow from 255 to 0
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self._dbusservice['/UpdateIndex'] = index
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#update lastupdate vars
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self._lastUpdate = time.time()
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else:
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logging.debug("Wallbox is not available")
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except Exception as e:
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logging.critical('Error at %s', '_update', exc_info=e)
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# return true, otherwise add_timeout will be removed from GObject - see docs http://library.isr.ist.utl.pt/docs/pygtk2reference/gobject-functions.html#function-gobject--timeout-add
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return True
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def _handlechangedvalue(self, path, value):
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logging.info("someone else updated %s to %s" % (path, value))
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if path == '/SetCurrent':
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return self._setGoeControllerValue('amp', value)
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elif path == '/StartStop':
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return self._setGoeControllerValue('alw', value)
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elif path == '/MaxCurrent':
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return self._setGoeControllerValue('ama', value)
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else:
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logging.info("mapping for evcharger path %s does not exist" % (path))
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return False
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def main():
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#configure logging
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logging.basicConfig( format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S',
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level=logging.INFO,
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handlers=[
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logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))),
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logging.StreamHandler()
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])
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try:
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logging.info("Start")
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from dbus.mainloop.glib import DBusGMainLoop
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# Have a mainloop, so we can send/receive asynchronous calls to and from dbus
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DBusGMainLoop(set_as_default=True)
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#formatting
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_kwh = lambda p, v: (str(round(v, 2)) + 'kWh')
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_a = lambda p, v: (str(round(v, 1)) + 'A')
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_w = lambda p, v: (str(round(v, 1)) + 'W')
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_v = lambda p, v: (str(round(v, 1)) + 'V')
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_degC = lambda p, v: (str(v) + '°C')
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_s = lambda p, v: (str(v) + 's')
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#start our main-service
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pvac_output = DbusGoeControllerService(
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servicename='com.victronenergy.grid',
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paths={
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'/Ac/L1/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L2/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L3/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L1/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L2/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L3/Power': {'initial': 0, 'textformat': _w},
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'/Ac/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L1/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/L2/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/L3/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/N/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/Energy/Forward': {'initial': 0, 'textformat': _kwh},
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'/Ac/Energy/Backward': {'initial': 0, 'textformat': _kwh},
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}
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)
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logging.info('Connected to dbus, and switching over to gobject.MainLoop() (= event based)')
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mainloop = gobject.MainLoop()
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mainloop.run()
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except Exception as e:
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logging.critical('Error at %s', 'main', exc_info=e)
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if __name__ == "__main__":
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main()
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