def set_logger(self) -> None:
"""Sets global logger for stdout and file logging.
Changes logger aquired by LOGGER_NAME.
Raises:
ValueError: Unable to open logger
"""
self.log_path = SppUtils.filename_of_config(OPTIONS.confFileJSON,
".log")
try:
file_handler = logging.FileHandler(self.log_path)
except Exception as error:
# TODO here: Right exception, how to print this error?
print("unable to open logger")
raise ValueError("Unable to open Logger") from error
file_handler_fmt = logging.Formatter(
'%(asctime)s:[PID %(process)d]:%(levelname)s:%(module)s.%(funcName)s> %(message)s'
)
file_handler.setFormatter(file_handler_fmt)
if (OPTIONS.debug):
file_handler.setLevel(logging.DEBUG)
else:
file_handler.setLevel(logging.ERROR)
stream_handler = logging.StreamHandler()
stream_handler.setLevel(logging.INFO)
logger = logging.getLogger(LOGGER_NAME)
logger.setLevel(logging.DEBUG)
logger.addHandler(file_handler)
logger.addHandler(stream_handler)
def check_pid_file(self) -> bool:
if (OPTIONS.verbose):
LOGGER.info("Checking for other SPPMon instances")
self.pid_file_path = SppUtils.filename_of_config(
OPTIONS.confFileJSON, ".pid_file")
try:
try:
file = open(self.pid_file_path, "rt")
match_list = re.findall(r"(\d+) " + str(OPTIONS), file.read())
file.close()
deleted_processes: List[str] = []
for match in match_list:
# add spaces to make clear the whole number is matched
match = f' {match} '
try:
if (os.name == 'nt'):
args = ['ps', '-W']
else:
args = ['ps', '-p', match]
result = subprocess.run(args,
check=True,
capture_output=True)
if (re.search(match, str(result.stdout))):
return False
# not in there -> delete entry
deleted_processes.append(match)
except CalledProcessError as error:
deleted_processes.append(match)
# delete processes which did get killed, not often called
if (deleted_processes):
file = open(self.pid_file_path, "rt")
file_str = file.read()
file.close()
options = str(OPTIONS)
for pid in deleted_processes:
file_str = file_str.replace(f"{pid} {options}", "")
# do not delete if empty since we will use it below
file = open(self.pid_file_path, "wt")
file.write(file_str.strip())
file.close()
except FileNotFoundError:
pass # no file created yet
# always write your own pid into it
file = open(self.pid_file_path, "at")
file.write(f"{os.getpid()} {str(OPTIONS)}")
file.close()
return True
except Exception as error:
ExceptionUtils.exception_info(error)
raise ValueError("Error when checking pid file")
