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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 Tue Jul 9 16:10:06 2019 |
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@author: Paolo Cozzi <[email protected]> |
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""" |
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import logging |
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from common.constants import ERROR |
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from image_app.models import Submission |
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from .helpers import send_message |
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# Get an instance of a logger |
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logger = logging.getLogger(__name__) |
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# HINT: should I move all this stuff into image_app module? |
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class SubmissionTaskMixin(): |
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"""A mixin to extend Task to support UID Submission objects""" |
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action = None |
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max_body_size = 5000 |
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def get_uid_submission(self, submission_id): |
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"""Get a UID Submission instance from an id |
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Args: |
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submission_id (int): the submission id |
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Returns: |
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:py:class:`Submission`: a UID submission instance |
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""" |
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return Submission.objects.get(pk=submission_id) |
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def update_submission_status(self, submission_obj, status, message): |
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"""Mark submission with status, then send message""" |
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submission_obj.status = ERROR |
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submission_obj.message = message |
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submission_obj.save() |
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# send async message |
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send_message(submission_obj) |
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def mail_to_owner(self, submission_obj, subject, body): |
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# truncate message body if necessary |
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if len(body) > self.max_body_size: |
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body = body[:self.max_body_size] + "...[truncated]" |
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submission_obj.owner.email_user(subject, body) |
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def on_failure(self, exc, task_id, args, kwargs, einfo): |
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"""Override the default on_failure method""" |
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# call base class |
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super().on_failure(exc, task_id, args, kwargs, einfo) |
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# get submission object |
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submission_id = args[0] |
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submission_obj = self.get_uid_submission(submission_id) |
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# mark submission with ERROR and send message |
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self.update_submission_status( |
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submission_obj, |
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ERROR, |
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"Error in %s: %s" % (self.action, str(exc)) |
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) |
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# send a mail to the user with the stacktrace (einfo) |
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subject = "Error in %s: %s" % (self.action, submission_id) |
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body = ( |
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"Something goes wrong with %s. Please report " |
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"this to InjectTool team\n\n %s" % ( |
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self.action, |
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str(einfo)) |
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) |
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self.mail_to_owner(submission_obj, subject, body) |
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# TODO: submit mail to admin |
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class ImportGenericTaskMixin(SubmissionTaskMixin): |
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"""A mixing used to import datasource into UID""" |
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action = None |
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def run(self, submission_id): |
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"""a function to upload data into UID""" |
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logger.info( |
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"Start %s for submission: %s" % (self.action, submission_id)) |
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# get a submission object (from SubmissionTaskMixin) |
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submission_obj = self.get_uid_submission(submission_id) |
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# upload data into UID with the proper method (defined in child class) |
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status = self.import_data_from_file(submission_obj) |
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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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message = "Error in %s" % (self.action) |
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logger.error(message) |
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# this a failure in my import, not the task itself |
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return message |
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else: |
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message = "%s completed for submission: %s" % ( |
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self.action, submission_id) |
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# debug |
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logger.info(message) |
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# always return something |
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return "success" |
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cnr-ibba /
IMAGE-InjectTool
