connectors/WAMP_dialog.py
author Edouard Tisserant
Tue, 25 Aug 2020 14:32:39 +0200
branchsvghmi
changeset 3036 4930455428df
parent 2610 7e31997b2799
child 3750 f62625418bff
permissions -rw-r--r--
SVGHMI: JsonTable now use intermediate variables again to address JSON data without duplicating code or referencing. Using intermediate variables also alows to check for availability of data and stop evaluating early if data is missing. Finally added complete roundtrip example to illustrate use of JSonTable to display "alarms" collected in python from changes on PLC boolean variables.
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# See COPYING file for copyrights details.

from __future__ import absolute_import

from itertools import repeat, islice, chain

from connectors.SchemeEditor import SchemeEditor

Schemes = ["WAMP", "WAMPS"]

model = [('host', _("Host:")),
         ('path', _("Path:")),
         ('port', _("Port:")),
         ('realm', _("Realm:"))]


class WAMP_dialog(SchemeEditor):
    def __init__(self, *args, **kwargs):
        self.model = model
        self.EnableIDSelector = True
        SchemeEditor.__init__(self, *args, **kwargs)

    # pylint: disable=unused-variable
    def SetLoc(self, loc):
        hostportpath, realm, ID = list(islice(chain(loc.split("#"), repeat("")), 3))
        hostport, path = list(islice(chain(hostportpath.split("/"), repeat("")), 2))
        host, port = list(islice(chain(hostport.split(":"), repeat("")), 2))
        self.SetFields(locals())

    def GetLoc(self):
        fields = self.GetFields()

        # TODO : input validation test

        template = "{host}" + \
                   (":{port}" if fields['port'] else '') +\
                   ("/{path}" if fields['path'] else '') +\
                   "#{realm}#{ID}"

        return template.format(**fields)