lcm/lcm/pub/utils/jobutil.py

   1 # Copyright 2017 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import datetime
  16 import logging
  17 import uuid
  18 import traceback
  19
  20 from lcm.pub.database.models import JobStatusModel, JobModel
  21 from lcm.pub.utils import idutil
  22
  23 logger = logging.getLogger(__name__)
  24
  25
  26 def enum(**enums):
  27     return type('Enum', (), enums)
  28
  29
  30 JOB_STATUS = enum(PROCESSING=0, FINISH=1)
  31 JOB_MODEL_STATUS = enum(STARTED='started', PROCESSING='processing', FINISHED='finished', ERROR='error',
  32                         TIMEOUT='timeout')
  33 JOB_TYPE = enum(CREATE_VNF="create vnf", TERMINATE_VNF="terminate vnf", GRANT_VNF="grant vnf")
  34
  35
  36 class JobUtil(object):
  37     def __init__(self):
  38         pass
  39
  40     @staticmethod
  41     def __gen_job_id(job_name):
  42         return "%s-%s" % (job_name if job_name else "UnknownJob", uuid.uuid1())
  43
  44     @staticmethod
  45     def query_job_status(job_id, index_id=-1):
  46         # logger.info("Query job status, jobid =[%s], responseid [%d]" % (job_id, index_id))
  47         jobs = []
  48         if index_id < 0:
  49             row = JobStatusModel.objects.filter(jobid=job_id).order_by("-indexid").first()
  50             if row:
  51                 jobs.append(row)
  52         else:
  53             [jobs.append(job) for job in JobStatusModel.objects.filter(jobid=job_id).order_by("-indexid")
  54              if job.indexid > index_id]
  55
  56         # logger.info("Query job status, rows=%s" % str(jobs))
  57         return jobs
  58
  59     @staticmethod
  60     def is_job_exists(job_id):
  61         jobs = JobModel.objects.filter(jobid=job_id)
  62         return len(jobs) > 0
  63
  64     @staticmethod
  65     def create_job(inst_type, jobaction, inst_id, user='', job_id=None, res_name=''):
  66         if job_id is None:
  67             job_id = JobUtil.__gen_job_id(
  68                 '%s-%s-%s' % (str(inst_type).replace(' ', '_'), str(jobaction).replace(' ', '_'), str(inst_id)))
  69         job = JobModel()
  70         job.jobid = job_id
  71         job.jobtype = inst_type
  72         job.jobaction = jobaction
  73         job.resid = str(inst_id)
  74         job.status = JOB_STATUS.PROCESSING
  75         job.user = user
  76         job.starttime = datetime.datetime.now().strftime('%Y-%m-%d %X')
  77         job.progress = 0
  78         job.resname = res_name
  79         logger.debug("create a new job, jobid=%s, jobtype=%s, jobaction=%s, resid=%s, status=%d" %
  80                      (job.jobid, job.jobtype, job.jobaction, job.resid, job.status))
  81         job.save()
  82         return job_id
  83
  84     @staticmethod
  85     def clear_job(job_id):
  86         [job.delete() for job in JobModel.objects.filter(jobid=job_id)]
  87         logger.debug("Clear job, job_id=%s" % job_id)
  88
  89     @staticmethod
  90     def add_job_status(job_id, progress, status_decs, error_code=""):
  91         jobs = JobModel.objects.filter(jobid=job_id)
  92         if not jobs:
  93             logger.error("Job[%s] is not exists, please create job first." % job_id)
  94             raise Exception("Job[%s] is not exists." % job_id)
  95         try:
  96             int_progress = int(progress)
  97             job_status = JobStatusModel()
  98             job_status.indexid = int(idutil.get_auto_id(job_id))
  99             job_status.jobid = job_id
 100             job_status.status = "processing"
 101             job_status.progress = int_progress
 102
 103             if job_status.progress == 0:
 104                 job_status.status = "started"
 105             elif job_status.progress == 100:
 106                 job_status.status = "finished"
 107             elif job_status.progress == 101:
 108                 job_status.status = "partly_finished"
 109             elif job_status.progress > 101:
 110                 job_status.status = "error"
 111
 112             job_status.descp = status_decs
 113             job_status.errcode = error_code
 114             job_status.addtime = datetime.datetime.now().strftime('%Y-%m-%d %X')
 115             job_status.save()
 116             logger.debug("Add a new job status, jobid=%s, indexid=%d,"
 117                          " status=%s, description=%s, progress=%d, errcode=%s, addtime=%r" %
 118                          (job_status.jobid, job_status.indexid, job_status.status, job_status.descp,
 119                           job_status.progress, job_status.errcode, job_status.addtime))
 120
 121             job = jobs[0]
 122             job.progress = int_progress
 123             if job_status.progress >= 100:
 124                 job.status = JOB_STATUS.FINISH
 125                 job.endtime = datetime.datetime.now().strftime('%Y-%m-%d %X')
 126             job.save()
 127             logger.debug("update job, jobid=%s, progress=%d" % (job_status.jobid, int_progress))
 128         except:
 129             logger.error(traceback.format_exc())
 130
 131     @staticmethod
 132     def clear_job_status(job_id):
 133         [job.delete() for job in JobStatusModel.objects.filter(jobid=job_id)]
 134         logger.debug("Clear job status, job_id=%s" % job_id)
 135
 136     @staticmethod
 137     def get_unfinished_jobs(url_prefix, inst_id, inst_type):
 138         jobs = JobModel.objects.filter(resid=inst_id, jobtype=inst_type, status=JOB_STATUS.PROCESSING)
 139         progresses = reduce(lambda content, job: content + [url_prefix + "/" + job.jobid], jobs, [])
 140         return progresses