#!/usr/bin/python2.5

#

# Copyright 2009 the Melange authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#   http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""This module contains the Job Model."""

__authors__ = [

  '"Sverre Rabbelier" <sverre@rabbelier.nl>',

]

from google.appengine.ext import db

from soc.models import base

import soc.models.priority_group

class Job(base.ModelWithFieldAttributes):

  """The Job model.

  """

  #: reference to the priority group this job belongs to

  priority_group = db.ReferenceProperty(

      reference_class=soc.models.priority_group.PriorityGroup,

      required=True, collection_name='jobs')

  #: the name of the task as defined in soc.cron.job

  task_name = db.StringProperty(required=True)

  #: field storing the status of this job

  #: Waiting means that this job is waiting to be run.

  #: Started means that this job has a worker that is running it.

  #: Finished means that this job has been completed.

  #: Aborted means that this job has been aborted due to a fatal error.

  status = db.StringProperty(default='waiting',

      choices=['waiting', 'started', 'finished', 'aborted'])

  #: the date this job was last modified on

  last_modified_on = db.DateTimeProperty(auto_now_add=True)

  #: the amount of times this job raised an Exception (other than a

  #: DeadlineExceededError).

  errors = db.IntegerProperty(default=0)

  #: the amount of times this job raised an DeadlineExceededError.

  timeouts = db.IntegerProperty(default=0)

  #: the data that the worker will use to process this job

  text_data = db.TextProperty(required=False, default="")

  #: the data that the worker will use to process this job

  key_data = db.ListProperty(db.Key, default=[])