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#!/usr/bin/python
#
# Copyright (C) 2015
# Matthias P. Braendli, matthias.braendli@mpb.li
#
# http://www.opendigitalradio.org
#
# This file is part of ODR-DabMux.
#
# ODR-DabMux is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# ODR-DabMux 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>.
import socket
import json
class Service(object):
"""Container object for a service"""
def __init__(self, name, ptree):
self.name = name
for fieldname in ['id',
"label",
"shortlabel",
"pty",
"language" ]:
if fieldname in ptree:
setattr(self, fieldname.replace("-", "_"), ptree[fieldname])
else:
setattr(self, fieldname.replace("-", "_"), "")
class Subchannel(object):
"""Container object for a subchannel"""
def __init__(self, name, ptree):
self.name = name
for fieldname in ['type',
"inputfile",
"zmq-buffer",
"zmq-prebuffering",
"bitrate",
"id",
"protection",
"encryption",
"secret-key",
"public-key",
"encoder-key"]:
if fieldname in ptree:
setattr(self, fieldname.replace("-", "_"), ptree[fieldname])
else:
setattr(self, fieldname.replace("-", "_"), "")
class Component(object):
"""Container object for a component"""
def __init__(self, name, ptree):
self.name = name
for fieldname in ['label', 'shortlabel', 'service',
'subchannel', 'figtype']:
if fieldname in ptree:
setattr(self, fieldname.replace("-", "_"), ptree[fieldname])
else:
setattr(self, fieldname.replace("-", "_"), "")
class ConfigurationHandler(object):
"""Load and present the configration from ODR-DabMux"""
def __init__(self, mux_host, mux_port=12720):
self._host = mux_host
self._port = mux_port
# local copy of the configuration
self._server_version = None
self._config = None
def load(self):
"""Load the configuration from the multiplexer and
save it locally"""
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((self._host, self._port))
s.sendall(b'getptree\n')
server_info = s.recv(32768)
config_info = s.recv(32768)
s.close()
self._server_version = json.loads(server_info.decode())['service']
self._config = json.loads(config_info.decode())
def get_full_configuration(self):
return self._config
def get_mux_version(self):
return self._server_version
def get_services(self):
srv_pt = self._config['services']
return [Service(name, srv_pt[name]) for name in srv_pt]
def get_subchannels(self):
sub_pt = self._config['subchannels']
return [Subchannel(name, sub_pt[name]) for name in sub_pt]
def get_components(self):
comp_pt = self._config['components']
return [Component(name, comp_pt[name]) for name in comp_pt]
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