def get_refcat_id(filename):
logger.debug("Extracting reference image id from {filename}".format(filename=filename))
with open_fits(filename) as infile:
header = infile[0].header
try:
return header["agrefimg"]
except KeyError:
logger.exception(
"""No autoguider reference image found in file %s.
Assuming this is ok and continuing.""",
filename,
)
raise NoAutoguider
def watcher_loop_step(connection):
# Starts transaction for job_queue table, short lived so Paladin should not
# have a write lock
with transaction(connection) as cursor:
transmission_jobs = fetch_transmission_jobs(cursor)
njobs = len(transmission_jobs)
logger.info("Found %s jobs", njobs)
# Separate transaction for updating transmission database
with transaction(connection) as cursor:
for i, transmission_job in enumerate(transmission_jobs):
logger.info("Job %d/%d", i + 1, njobs)
try:
transmission_job.update(cursor)
except Exception as e:
logger.exception("Exception occurred: %s", str(e))
else:
transmission_job.remove_from_database(cursor)
def watcher(connection):
logger.info("Starting watcher")
logger.debug("Connecting to central hub")
hub = Pyro4.Proxy("PYRONAME:central.hub")
try:
hub.startThread("Transparency")
except Exception as err:
logger.exception("Cannot connect to pyro hub")
raise
while True:
try:
logger.debug("Pinging hub")
hub.update_transp(time.time())
except Exception as err:
logger.exception("Failure communicating with hub process")
raise
with time_context():
watcher_loop_step(connection)
logger.debug("Sleeping for %s seconds", SLEEP_TIME)
time.sleep(SLEEP_TIME)
