How to use _check_for_duplicate_host_entries method in autotest

Best Python code snippet using autotest_python

monitor_db.py

Source:monitor_db.py

...436        @param queue_entry: a HostQueueEntry437        @return: an AgentTask to run the queue entry438        """439        task_entries = queue_entry.job.get_group_entries(queue_entry)440        self._check_for_duplicate_host_entries(task_entries)441        if queue_entry.status in (models.HostQueueEntry.Status.STARTING,442                                  models.HostQueueEntry.Status.RUNNING):443            if queue_entry.is_hostless():444                return HostlessQueueTask(queue_entry=queue_entry)445            return QueueTask(queue_entries=task_entries)446        if queue_entry.status == models.HostQueueEntry.Status.GATHERING:447            return postjob_task.GatherLogsTask(queue_entries=task_entries)448        if queue_entry.status == models.HostQueueEntry.Status.PARSING:449            return postjob_task.FinalReparseTask(queue_entries=task_entries)450        if queue_entry.status == models.HostQueueEntry.Status.ARCHIVING:451            return postjob_task.ArchiveResultsTask(queue_entries=task_entries)452        raise scheduler_lib.SchedulerError(453                '_get_agent_task_for_queue_entry got entry with '454                'invalid status %s: %s' % (queue_entry.status, queue_entry))455    def _check_for_duplicate_host_entries(self, task_entries):456        non_host_statuses = (models.HostQueueEntry.Status.PARSING,457                             models.HostQueueEntry.Status.ARCHIVING)458        for task_entry in task_entries:459            using_host = (task_entry.host is not None460                          and task_entry.status not in non_host_statuses)461            if using_host:462                self._assert_host_has_no_agent(task_entry)463    def _assert_host_has_no_agent(self, entry):464        """465        @param entry: a HostQueueEntry or a SpecialTask466        """467        if self.host_has_agent(entry.host):468            agent = tuple(self._host_agents.get(entry.host.id))[0]469            raise scheduler_lib.SchedulerError(...

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