tasks.py
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from __future__ import absolute_import
from celery.task import Task
from analyzer.tasks import analysis
from common.models import *
from devices import CameraVIS as VIS
from devices import CameraNIR as NIR
from devices import Telescope
import time
import os
class execute_plan(Task):
'''
Super class for execute_plan_vis / _nir
'''
def run(self, plan_id, countdown, type):
'''
:param type: VIS or NIR
:param countdown: Time to wait before execution start
'''
if countdown > 0:
time.sleep(countdown)
TaskId.objects.filter(task_id=self.request.id).delete()
self.type = type
plan = Plan.objects.get(id=plan_id)
message = 'Start plan ' + plan.name + ' execution'
Log.objects.create(agent='Observation manager', message=message)
print("execute_plan " + self.type + " : ", plan.name)
self.tel = Telescope.TelescopeController()
if self.type == "VIS":
cam = VIS.VISCameraController()
else:
cam = NIR.NIRCameraController()
self.set_camera(cam, plan)
self.wait_camera_ready(cam)
cam.do("START")
st = self.wait_camera_finished(cam)
# TODO: récupérer les vraies images ? je fais quoi ?
time.sleep(1)
# Penser qu'un plan peut créer plusieurs images (et analyser image par image)
analysis.delay(plan_id)
message = 'Finished plan ' + plan.name + ' execution'
Log.objects.create(agent='Observation manager', message=message)
def set_camera(self, cam, plan):
'''
Set the camera configuration
'''
# TODO: mettre les vraies configurations en fct du plan
cam.set("WINDOW", 0, 100, 10, 100)
cam.set("READMODE", "Ramp")
cam.set("FILENAME", plan.name)
cam.set("HEADER", {})
cam.set("READOUT_FREQUENCY", 20.0)
cam.set("FILTER", "H")
if self.type == "VIS":
cam.set("EXPOSURE", 180)
cam.set("BINNING", 300, 300)
else:
cam.set("NB_IMAGES", 28)
def wait_camera_ready(self, cam):
'''
Loop to wait for the configuration to be done
'''
st = 0
while st == 0:
st_tel = self.tel.get("STATUS")
st_cam = cam.get("STATUS")
st = 1
# TODO: checker les statuts comme il faut, et repasser à 0 si on a des statuts pas bons
if st_tel != "IDLE" or st_cam != "IDLE":
st = 0
def wait_camera_finished(self, cam):
'''
Loop to wait for the observation to be finished
'''
countdown = int(cam.get("TIMER"))
while countdown > 5:
time.sleep(5)
countdown = int(cam.get("TIMER"))
st = 0
while st == 0:
timer = int(cam.get("TIMER"))
if timer == -1:
st = 1
else:
time.sleep(1)
class execute_plan_vis(execute_plan):
'''
Gives the orders to the instruments to retrieve the image(s) of a plan VIS.
Send the images to the analyzer
'''
def run(self, plan_id, countdown):
super().run(plan_id, countdown, "VIS")
class execute_plan_nir(execute_plan):
'''
Gives the orders to the instruments to retrieve the image(s) of a plan NIR.
Send the images to the analyzer
'''
def run(self, plan_id, countdown):
super().run(plan_id, countdown, "NIR")
class create_calibrations(Task):
'''
Directly make the right calls to the instruments to create the calibration files.
When they are all finished, it creates the 'super' calibration files.
'''
def run(self):
# TODO: attendre que tout soit idle
pass