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#!/usr/bin/python2
# Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This module provides functions for caller to retrieve a job's history,
# including special tasks executed before and after the job, and each steps
# start/end time.
import argparse
import datetime as datetime_base
import common
from autotest_lib.client.common_lib import global_config
from autotest_lib.frontend import setup_django_environment
from autotest_lib.frontend.afe import models
from autotest_lib.frontend.tko import models as tko_models
CONFIG = global_config.global_config
AUTOTEST_SERVER = CONFIG.get_config_value('SERVER', 'hostname', type=str)
LOG_BASE_URL = 'http://%s/tko/retrieve_logs.cgi?job=/results/' % AUTOTEST_SERVER
JOB_URL = LOG_BASE_URL + '%(job_id)s-%(owner)s/%(hostname)s'
LOG_PATH_FMT = 'hosts/%(hostname)s/%(task_id)d-%(task_name)s'
TASK_URL = LOG_BASE_URL + LOG_PATH_FMT
AUTOSERV_DEBUG_LOG = 'debug/autoserv.DEBUG'
# Add some buffer before and after job start/end time when searching for special
# tasks. This is to guarantee to include reset before the job starts and repair
# and cleanup after the job finishes.
TIME_BUFFER = datetime_base.timedelta(hours=2)
class JobHistoryObject(object):
"""A common interface to call get_history to return a dictionary of the
object's history record, e.g., start/end time.
"""
def build_history_entry(self):
"""Build a history entry.
This function expect the object has required attributes. Any missing
attributes will lead to failure.
@return: A dictionary as the history entry of given job/task.
"""
return {'id': self.id,
'name': self.name,
'hostname': self.hostname,
'status': self.status,
'log_url': self.log_url,
'autoserv_log_url': self.autoserv_log_url,
'start_time': self.start_time,
'end_time': self.end_time,
'time_used': self.time_used,
}
def get_history(self):
"""Return a list of dictionaries of select job/task's history.
"""
raise NotImplementedError('You must override this method in child '
'class.')
class SpecialTaskInfo(JobHistoryObject):
"""Information of a special task.
Its properties include:
id: Special task ID.
task: An AFE models.SpecialTask object.
hostname: hostname of the DUT that runs the special task.
log_url: Url to debug log.
autoserv_log_url: Url to the autoserv log.
"""
def __init__(self, task):
"""Constructor
@param task: An AFE models.SpecialTask object, which has the information
of the special task from database.
"""
# Special task ID
self.id = task.id
# AFE special_task model
self.task = task
self.name = task.task
self.hostname = task.host.hostname
self.status = task.status
# Link to log
task_info = {'task_id': task.id, 'task_name': task.task.lower(),
'hostname': self.hostname}
self.log_url = TASK_URL % task_info
self.autoserv_log_url = '%s/%s' % (self.log_url, AUTOSERV_DEBUG_LOG)
self.start_time = self.task.time_started
self.end_time = self.task.time_finished
if self.start_time and self.end_time:
self.time_used = (self.end_time - self.start_time).total_seconds()
else:
self.time_used = None
def __str__(self):
"""Get a formatted string of the details of the task info.
"""
return ('Task %d: %s from %s to %s, for %s seconds.\n' %
(self.id, self.task.task, self.start_time, self.end_time,
self.time_used))
def get_history(self):
"""Return a dictionary of selected object properties.
"""
return [self.build_history_entry()]
class TaskCacheCollection(dict):
"""A cache to hold tasks for multiple hosts.
It's a dictionary of host_id: TaskCache.
"""
def try_get(self, host_id, job_id, start_time, end_time):
"""Try to get tasks from cache.
@param host_id: ID of the host.
@param job_id: ID of the test job that's related to the special task.
@param start_time: Start time to search for special task.
@param end_time: End time to search for special task.
@return: The list of special tasks that are related to given host and
Job id. Note that, None means the cache is not available.
However, [] means no special tasks found in cache.
"""
if not host_id in self:
return None
return self[host_id].try_get(job_id, start_time, end_time)
def update(self, host_id, start_time, end_time):
"""Update the cache of the given host by searching database.
@param host_id: ID of the host.
@param start_time: Start time to search for special task.
@param end_time: End time to search for special task.
"""
search_start_time = start_time - TIME_BUFFER
search_end_time = end_time + TIME_BUFFER
tasks = models.SpecialTask.objects.filter(
host_id=host_id,
time_started__gte=search_start_time,
time_started__lte=search_end_time)
self[host_id] = TaskCache(tasks, search_start_time, search_end_time)
class TaskCache(object):
"""A cache that hold tasks for a host.
"""
def __init__(self, tasks=[], start_time=None, end_time=None):
"""Constructor
"""
self.tasks = tasks
self.start_time = start_time
self.end_time = end_time
def try_get(self, job_id, start_time, end_time):
"""Try to get tasks from cache.
@param job_id: ID of the test job that's related to the special task.
@param start_time: Start time to search for special task.
@param end_time: End time to search for special task.
@return: The list of special tasks that are related to the job id.
Note that, None means the cache is not available.
However, [] means no special tasks found in cache.
"""
if start_time < self.start_time or end_time > self.end_time:
return None
return [task for task in self.tasks if task.queue_entry and
task.queue_entry.job.id == job_id]
class TestJobInfo(JobHistoryObject):
"""Information of a test job
"""
def __init__(self, hqe, task_caches=None, suite_start_time=None,
suite_end_time=None):
"""Constructor
@param hqe: HostQueueEntry of the job.
@param task_caches: Special tasks that's from a previous query.
@param suite_start_time: Start time of the suite job, default is
None. Used to build special task search cache.
@param suite_end_time: End time of the suite job, default is
None. Used to build special task search cache.
"""
# AFE job ID
self.id = hqe.job.id
# AFE job model
self.job = hqe.job
# Name of the job, strip all build and suite info.
self.name = hqe.job.name.split('/')[-1]
self.status = hqe.status if hqe else None
try:
self.tko_job = tko_models.Job.objects.filter(afe_job_id=self.id)[0]
self.host = models.Host.objects.filter(
hostname=self.tko_job.machine.hostname)[0]
self.hostname = self.tko_job.machine.hostname
self.start_time = self.tko_job.started_time
self.end_time = self.tko_job.finished_time
except IndexError:
# The test job was never started.
self.tko_job = None
self.host = None
self.hostname = None
self.start_time = None
self.end_time = None
if self.end_time and self.start_time:
self.time_used = (self.end_time - self.start_time).total_seconds()
else:
self.time_used = None
# Link to log
self.log_url = JOB_URL % {'job_id': hqe.job.id, 'owner': hqe.job.owner,
'hostname': self.hostname}
self.autoserv_log_url = '%s/%s' % (self.log_url, AUTOSERV_DEBUG_LOG)
self._get_special_tasks(hqe, task_caches, suite_start_time,
suite_end_time)
def _get_special_tasks(self, hqe, task_caches=None, suite_start_time=None,
suite_end_time=None):
"""Get special tasks ran before and after the test job.
@param hqe: HostQueueEntry of the job.
@param task_caches: Special tasks that's from a previous query.
@param suite_start_time: Start time of the suite job, default is
None. Used to build special task search cache.
@param suite_end_time: End time of the suite job, default is
None. Used to build special task search cache.
"""
# Special tasks run before job starts.
self.tasks_before = []
# Special tasks run after job finished.
self.tasks_after = []
# Skip locating special tasks if hqe is None, or not started yet, as
# that indicates the test job might not be started.
if not hqe or not hqe.started_on:
return
# Assume special tasks for the test job all start within 2 hours
# before the test job starts or 2 hours after the test finishes. In most
# cases, special task won't take longer than 2 hours to start before
# test job starts and after test job finishes.
search_start_time = hqe.started_on - TIME_BUFFER
search_end_time = (hqe.finished_on + TIME_BUFFER if hqe.finished_on else
hqe.started_on + TIME_BUFFER)
if task_caches is not None and suite_start_time and suite_end_time:
tasks = task_caches.try_get(self.host.id, self.id,
suite_start_time, suite_end_time)
if tasks is None:
task_caches.update(self.host.id, search_start_time,
search_end_time)
tasks = task_caches.try_get(self.host.id, self.id,
suite_start_time, suite_end_time)
else:
tasks = models.SpecialTask.objects.filter(
host_id=self.host.id,
time_started__gte=search_start_time,
time_started__lte=search_end_time)
tasks = [task for task in tasks if task.queue_entry and
task.queue_entry.job.id == self.id]
for task in tasks:
task_info = SpecialTaskInfo(task)
if task.time_started < self.start_time:
self.tasks_before.append(task_info)
else:
self.tasks_after.append(task_info)
def get_history(self):
"""Get the history of a test job.
@return: A list of special tasks and test job information.
"""
history = []
history.extend([task.build_history_entry() for task in
self.tasks_before])
history.append(self.build_history_entry())
history.extend([task.build_history_entry() for task in
self.tasks_after])
return history
def __str__(self):
"""Get a formatted string of the details of the job info.
"""
result = '%d: %s\n' % (self.id, self.name)
for task in self.tasks_before:
result += str(task)
result += ('Test from %s to %s, for %s seconds.\n' %
(self.start_time, self.end_time, self.time_used))
for task in self.tasks_after:
result += str(task)
return result
class SuiteJobInfo(JobHistoryObject):
"""Information of a suite job
"""
def __init__(self, hqe):
"""Constructor
@param hqe: HostQueueEntry of the job.
"""
# AFE job ID
self.id = hqe.job.id
# AFE job model
self.job = hqe.job
# Name of the job, strip all build and suite info.
self.name = hqe.job.name.split('/')[-1]
self.status = hqe.status if hqe else None
self.log_url = JOB_URL % {'job_id': hqe.job.id, 'owner': hqe.job.owner,
'hostname': 'hostless'}
hqe = models.HostQueueEntry.objects.filter(job_id=hqe.job.id)[0]
self.start_time = hqe.started_on
self.end_time = hqe.finished_on
if self.start_time and self.end_time:
self.time_used = (self.end_time - self.start_time).total_seconds()
else:
self.time_used = None
# Cache of special tasks, hostname: ((start_time, end_time), [tasks])
task_caches = TaskCacheCollection()
self.test_jobs = []
for job in models.Job.objects.filter(parent_job_id=self.id):
try:
job_hqe = models.HostQueueEntry.objects.filter(job_id=job.id)[0]
except IndexError:
continue
self.test_jobs.append(TestJobInfo(job_hqe, task_caches,
self.start_time, self.end_time))
def get_history(self):
"""Get the history of a suite job.
@return: A list of special tasks and test job information that has
suite job as the parent job.
"""
history = []
for job in sorted(self.test_jobs,
key=lambda j: (j.hostname, j.start_time)):
history.extend(job.get_history())
return history
def __str__(self):
"""Get a formatted string of the details of the job info.
"""
result = '%d: %s\n' % (self.id, self.name)
for job in self.test_jobs:
result += str(job)
result += '-' * 80 + '\n'
return result
def get_job_info(job_id):
"""Get the history of a job.
@param job_id: ID of the job.
@return: A TestJobInfo object that contains the test job and its special
tasks' start/end time, if the job is a test job. Otherwise, return
a SuiteJobInfo object if the job is a suite job.
@raise Exception: if the test job can't be found in database.
"""
try:
hqe = models.HostQueueEntry.objects.filter(job_id=job_id)[0]
except IndexError:
raise Exception('No HQE found for job ID %d' % job_id)
if hqe and hqe.execution_subdir != 'hostless':
return TestJobInfo(hqe)
else:
return SuiteJobInfo(hqe)
def main():
"""Main script.
The script accepts a job ID and print out the test job and its special
tasks' start/end time.
"""
parser = argparse.ArgumentParser()
parser.add_argument('--job_id', type=int, dest='job_id', required=True)
options = parser.parse_args()
job_info = get_job_info(options.job_id)
print job_info
if __name__ == '__main__':
main()