def add_entry(self, new_entry: dict, overwrite: bool = False):
"""
Add a new record config entry to PV Config.
Args:
new_entry (dict): The record config.
overwrite (bool, optional): If True, overwrites the entry that matches the object ID, Defaults to False.
"""
data = self.get_entries()
if overwrite:
overwritten = False
for index, entry in enumerate(data):
if entry[self.OBJ] == new_entry[self.OBJ]:
data[index] = new_entry
overwritten = True
break
if not overwritten:
manager_logger.error(
f'Entry with object ID {new_entry[self.OBJ]} was not overwritten.'
)
return
else:
data.append(new_entry)
data = {self.ROOT: data}
self._json_dump(data)
manager_logger.info(
f'Added new PV configuration entry: {new_entry}' if not overwrite
else f'Updated PV configuration entry: {new_entry}')
def is_admin():
# noinspection PyBroadException
try:
return ctypes.windll.shell32.IsUserAnAdmin()
except Exception as e:
manager_logger.error(e)
return False
def update_config_data(self):
""" Get the PV configuration entries (list of dicts) and store the data in an attribute. """
try:
self.pv_config_data = Settings.Service.PVConfig.get_entries()
except FileNotFoundError as e:
manager_logger.error(e)
self.pv_config_data = []
return
def _get_credentials(service_option):
if not SERVICE_NAME:
return
try:
return win32serviceutil.GetServiceCustomOption(
serviceName=SERVICE_NAME, option=service_option)
except Exception as e:
manager_logger.error(e)
def _set_credentials(service_option, new_value, err_msg: str):
if not SERVICE_NAME:
manager_logger.error(err_msg)
return
try:
win32serviceutil.SetServiceCustomOption(serviceName=SERVICE_NAME,
option=service_option,
value=new_value)
except Exception as e:
manager_logger.error(e)
def excepthook(exc_type, exc_value, exc_tb):
traceback_ = ''.join(
traceback.format_exception(exc_type, exc_value, exc_tb))
err_msg = f'An unhandled exception has occurred:\n {traceback_}'
manager_logger.error(err_msg)
err_msg = err_msg.replace('\n', '<br>')
error_dialog = QErrorMessage()
error_dialog.setWindowTitle('HLM PV Import - Error')
error_dialog.resize(600, 300)
error_dialog.setFont(QFont('Lucida Console', 9))
error_dialog.showMessage(err_msg)
error_dialog.exec()
def update_log(self):
service_log_path = Settings.Service.Logging.log_path
try:
last_modified = os.path.getmtime(service_log_path)
except FileNotFoundError as e:
manager_logger.error(e)
self.enable_or_disable_buttons.emit(False)
self.file_not_found.emit()
self.last_widget_update = 0
self.stop()
return
# if log file was modified since last log widget update, update widget text
if last_modified > self.last_widget_update:
with open(service_log_path) as file:
text = ''.join(deque(file, self.displayed_lines_no))
self.log_fetched.emit(text)
self.last_widget_update = time.time()
def test_pv_connection(name: str, timeout: int = 1):
"""
Tests whether CA can connect to a PV and get its value.
Args:
name (str): The PV.
timeout (int, optional): PV connection timeout in seconds, Defaults to 1.
Returns:
(boolean): True if connected, False otherwise.
"""
try:
read(pv_name=name, timeout=timeout)
return True
except Exception as e:
manager_logger.error(e)
return False
def __init__(self, err_msg):
logger.error(err_msg)
super(DBConnectionError, self).__init__(err_msg)
def __init__(self, err_msg):
logger.error(err_msg)
super(DBObjectNameAlreadyExists, self).__init__(err_msg)