89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
""""
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ModBus configuration file reader routines
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Copyright (C) 2023-2025 M.T. Konstapel
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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import yaml
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from yaml.loader import SafeLoader
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class config_reader:
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# initiate class: define name configuration files
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def __init__(self, config_file):
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self.config_file = config_file
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def read_settings(self):
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if self.read_config_file() == 0:
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return 0
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if self.test_global_settings() == 0:
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return 0
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if self.test_modbus_settings() == 0:
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return 0
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if self.test_modbus_servers_settings() == 0:
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return 0
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return 1
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def read_config_file (self):
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try:
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with open(self.config_file) as f:
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self.config_file_settings = yaml.load(f, Loader=SafeLoader)
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except:
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print ("Configuration file ./" + self.config_file + " not found or syntax error in file.")
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return 0
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else:
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return 1
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# Test if all settings are pressent
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def test_global_settings(self):
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# Test is all expected settings are present
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try:
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tmp = self.config_file_settings['global']['program-log']
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tmp = self.config_file_settings['global']['data-log']
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tmp = self.config_file_settings['global']['mqtt-server']
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tmp = self.config_file_settings['global']['mqtt-port']
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tmp = self.config_file_settings['global']['mqtt-root-topic']
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except:
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print ("Error in the global section of the configuration file.")
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return 0
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else:
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return 1
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# Test if all settings are pressent
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def test_modbus_settings(self):
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# Test is all expected settings are present
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try:
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tmp = self.config_file_settings['modbus']['port']
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except:
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print ("Error in the modbus section of the configuration file.")
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return 0
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else:
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return 1
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def test_modbus_servers_settings(self):
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for entry in self.config_file_settings['modbus_servers']:
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try:
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tmp = entry['address']
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tmp = entry['description']
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except:
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print ("Error in the modbus_servers section of the configuration file.")
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return 0
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else:
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return 1
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