beremiz

fix problem when Beremiz is running without matiec installed

2017-08-25, Andrey Skvortsov
492e2cd6157e
fix problem when Beremiz is running without matiec installed

set matiec settings only once on first use of ProjectController class and give
user-friendly message on compilation about missing matiec
installation.


Traceback (most recent call last):
File "Beremiz.py", line 197, in
beremiz.Start()
File "Beremiz.py", line 192, in Start
self.CreateApplication()
File "Beremiz.py", line 130, in CreateApplication
self.BackgroundInitialization()
File "Beremiz.py", line 137, in BackgroundInitialization
self.ImportModules()
File "Beremiz.py", line 176, in ImportModules
import BeremizIDE
File
"BeremizIDE.py", line 76, in
from ProjectController import ProjectController, GetAddMenuItems,
MATIEC_ERROR_MODEL, ITEM_CONFNODE
File
"ProjectController.py", line 177, in
iec2c_cfg = Iec2CSettings()
File
"ProjectController.py", line 101, in __init__
self.ieclib_c_path = self.findLibCPath()
File
"ProjectController.py", line 135, in findLibCPath
os.path.join(self.ieclib_path, "C"),
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz runtime.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING.Runtime file for copyrights details.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import sys
from autobahn.twisted import wamp
from autobahn.twisted.websocket import WampWebSocketClientFactory, connectWS
from twisted.internet.defer import inlineCallbacks
from autobahn.wamp import types
from autobahn.wamp.serializer import MsgPackSerializer
from twisted.internet.protocol import ReconnectingClientFactory
import json
_WampSession = None
_PySrv = None
ExposedCalls = ["StartPLC",
"StopPLC",
"ForceReload",
"GetPLCstatus",
"NewPLC",
"MatchMD5",
"SetTraceVariablesList",
"GetTraceVariables",
"RemoteExec",
"GetLogMessage",
"ResetLogCount",
]
SubscribedEvents = []
DoOnJoin = []
def GetCallee(name):
""" Get Callee or Subscriber corresponding to '.' spearated object path """
global _PySrv
names = name.split('.')
obj = _PySrv.plcobj
while names:
obj = getattr(obj, names.pop(0))
return obj
class WampSession(wamp.ApplicationSession):
@inlineCallbacks
def onJoin(self, details):
global _WampSession
_WampSession = self
ID = self.config.extra["ID"]
print 'WAMP session joined by :', ID
for name in ExposedCalls:
reg = yield self.register(GetCallee(name), '.'.join((ID, name)))
for name in SubscribedEvents:
reg = yield self.subscribe(GetCallee(name), name)
for func in DoOnJoin:
yield func(self)
def onLeave(self, details):
global _WampSession
_WampSession = None
print 'WAMP session left'
class ReconnectingWampWebSocketClientFactory(WampWebSocketClientFactory, ReconnectingClientFactory):
def clientConnectionFailed(self, connector, reason):
print("WAMP Client connection failed .. retrying ..")
self.retry(connector)
def clientConnectionLost(self, connector, reason):
print("WAMP Client connection lost .. retrying ..")
self.retry(connector)
def LoadWampClientConf(wampconf):
WSClientConf = json.load(open(wampconf))
return WSClientConf
def RegisterWampClient(wampconf):
WSClientConf = LoadWampClientConf(wampconf)
# start logging to console
# log.startLogging(sys.stdout)
# create a WAMP application session factory
component_config = types.ComponentConfig(
realm=WSClientConf["realm"],
extra={"ID": WSClientConf["ID"]})
session_factory = wamp.ApplicationSessionFactory(
config=component_config)
session_factory.session = WampSession
# create a WAMP-over-WebSocket transport client factory
transport_factory = ReconnectingWampWebSocketClientFactory(
session_factory,
url=WSClientConf["url"],
serializers=[MsgPackSerializer()],
debug=False,
debug_wamp=False)
# start the client from a Twisted endpoint
conn = connectWS(transport_factory)
print "WAMP client connecting to :", WSClientConf["url"]
return conn
def GetSession():
global _WampSession
return _WampSession
def SetServer(pysrv):
global _PySrv
_PySrv = pysrv