monitor.py

   1 import string
   2
   3 class MonitorBase:
   4     def __init__(self, bus):
   5         self.bus = bus
   6
   7         self.amap = {}
   8         self.specific = {}
   9         self.bus.add_signal_receiver(self.abbr_h,
  10                         path_keyword="path",
  11                         interface_keyword="interface",
  12                         member_keyword="member")
  13
  14     def ignore(self, dbus_interface, signal_name):
  15         self.watch(self.null_h, dbus_interface, signal_name)
  16
  17     def null_h(self, *args, **kwargs):
  18         pass
  19
  20     def watch(self, handler, dbus_interface, signal_name):
  21         self.specific[dbus_interface +"."+ signal_name] = True
  22         self.bus.add_signal_receiver(handler,
  23                                 dbus_interface=dbus_interface,
  24                                 signal_name=signal_name,
  25                                 path_keyword="path")
  26
  27     def abbr_h(self, *args, **kwargs):
  28         ifc = kwargs["interface"]
  29         sig = kwargs["member"]
  30         if self.specific.has_key(ifc +"."+ sig):
  31             return
  32
  33         opath = kwargs["path"]
  34         line = "SIG %s: %s.%s%s" % (self.abbrev(opath,"/"),
  35                                     self.abbrev(ifc,"."),
  36                                     sig, args)
  37         print line
  38
  39     def abbrev(self, s, sep):
  40         words = s.split(sep)
  41         words = map (self.a1, words)
  42         result = sep.join(words)
  43         if self.amap.has_key(result):
  44             if self.amap[result] != s:
  45                 print "ABBR COLLISION %s was %s now %s" % (result, self.amap[result], s)
  46         else:
  47             print "ABBR %s is %s" % (result, s)
  48         self.amap[result] = s
  49         return result
  50
  51     def a1(self, s):
  52         if s == "":
  53             return ""
  54         #print "#A", s
  55         # first char, delete lowercase and _ from the rest
  56         return s[0] + s[1:].translate(string.maketrans("", ""),
  57                                       string.lowercase + "_")