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#!/usr/bin/env python3 |
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# -*- coding: utf-8 -*- |
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""" |
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Created on Thu Sep 13 11:33:09 2018 |
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@author: Paolo Cozzi <[email protected]> |
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Inspired from |
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http://docs.celeryproject.org/en/latest/tutorials/task-cookbook.html |
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""" |
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from celery.utils.log import get_task_logger |
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from common.tasks import ExclusiveTask |
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from image.celery import app as celery_app |
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from submissions.tasks import ImportGenericTaskMixin |
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from .helpers import cryoweb_import, upload_cryoweb |
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from .models import truncate_database |
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# get a logger for tasks |
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logger = get_task_logger(__name__) |
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# clean cryoweb database after calling decorated function |
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def clean_cryoweb_database(f): |
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logger.debug("Decorating %s" % (f)) |
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def wrap(*args, **kwargs): |
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result = f(*args, **kwargs) |
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# cleaning up database without knowing if load is successful or not |
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logger.info("Cleaning up cryoweb database") |
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truncate_database() |
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return result |
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wrap.__doc__ = f.__doc__ |
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wrap.__name__ = f.__name__ |
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# return decorated function |
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return wrap |
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class ImportCryowebTask(ImportGenericTaskMixin, ExclusiveTask): |
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""" |
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An exclusive task wich upload a *data-only* cryoweb dump in cryoweb |
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database and then fill up :ref:`UID <The Unified Internal Database>` |
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tables. After data import (wich could be successful or not) cryoweb |
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helper database is cleanded and restored in the original status:: |
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from cryoweb.tasks import ImportCryowebTask |
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# call task asynchronously |
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task = ImportCryowebTask() |
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res = task.delay(submission_id) |
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Args: |
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submission_id (int): the submission primary key |
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Returns: |
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str: a message string (ex. success) |
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""" |
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name = "Import Cryoweb" |
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description = """Import Cryoweb data from Cryoweb dump""" |
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action = "cryoweb import" |
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# ExclusiveTask attributes |
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lock_id = 'ImportFromCryoWeb' |
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blocking = True |
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# decorate function in order to cleanup cryoweb database after data import |
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@clean_cryoweb_database |
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def import_data_from_file(self, submission_obj): |
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"""Call the custom import method""" |
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# upload data into cryoweb database |
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status = upload_cryoweb(submission_obj.id) |
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# if something went wrong, uploaded_cryoweb has token the exception |
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# ad update submission.message field |
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if status is False: |
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return status |
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# load cryoweb data into UID |
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# check status |
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status = cryoweb_import(submission_obj) |
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return status |
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# register explicitly tasks |
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# https://github.com/celery/celery/issues/3744#issuecomment-271366923 |
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celery_app.tasks.register(ImportCryowebTask) |
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cnr-ibba /
IMAGE-InjectTool
