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1 #!/usr/bin/env python3
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2 # -*- coding: utf-8 -*-
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3
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4 from dbus.mainloop.glib import DBusGMainLoop
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5 import dbus
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6 import dbus.service
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7 import inspect
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8 import platform
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9 import pprint
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10 import sys
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11 import os
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12
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13 # our own packages
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14 sys.path.insert(1, os.path.join(os.path.dirname(__file__), '../'))
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15 from gi.repository import GLib
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16 from vedbus import VeDbusItemExport
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17
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18 # Dictionary containing all objects exported to dbus
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19 dbusObjects = {}
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20
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21 def changerequest(path, newvalue):
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22 if newvalue < 100:
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23 return True
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24 else:
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25 return False
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26
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27 def gettext(path, value):
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28 return 'gettexted %s %s' % (path, value)
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29
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30 def main(argv):
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31 global dbusObjects
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32
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33 # Have a mainloop, so we can send/receive asynchronous calls to and from dbus
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34 DBusGMainLoop(set_as_default=True)
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35
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36 # Connect to session bus whenever present, else use the system bus
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37 dbusConn = dbus.SessionBus() if 'DBUS_SESSION_BUS_ADDRESS' in os.environ else dbus.SystemBus()
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38
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39 # Register ourserves on the dbus as a service
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40 name = dbus.service.BusName("com.victronenergy.dbusexample", dbusConn)
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41
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42 # Create the management objects, as specified in the ccgx dbus-api document
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43
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44 # Keep a reference in the global dictionary. Without this they would be removed by
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45 # garbage collector again.
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46 dbusObjects['string'] = VeDbusItemExport(dbusConn, '/String', 'this is a string')
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47 dbusObjects['int'] = VeDbusItemExport(dbusConn, '/Int', 40000)
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48 dbusObjects['negativeInt'] = VeDbusItemExport(dbusConn, '/NegativeInt', -10)
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49 dbusObjects['float'] = VeDbusItemExport(dbusConn, '/Float', 1.5)
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50 dbusObjects['invalid'] = VeDbusItemExport(dbusConn, '/Invalid', None)
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51 dbusObjects['byte'] = VeDbusItemExport(dbusConn, '/Byte', dbus.Byte(84))
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52 dbusObjects['writeable'] = VeDbusItemExport(dbusConn, '/Writeable', 'original', writeable=True)
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53 dbusObjects['not-writeable'] = VeDbusItemExport(dbusConn, '/NotWriteable', 'original', writeable=False)
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54
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55 dbusObjects['not-writeable with cb'] = VeDbusItemExport(dbusConn, '/WriteableUpTo100',
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56 'original', writeable=True, onchangecallback=changerequest)
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57
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58 dbusObjects['gettextcallback'] = VeDbusItemExport(dbusConn, '/Gettextcallback',
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59 '10', gettextcallback=gettext, writeable=True)
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60
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61 mainloop = GLib.MainLoop()
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62 print("up and running")
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63 sys.stdout.flush()
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64
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65 mainloop.run()
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66
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67 main("")
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