mirror of
https://github.com/valitydev/yandex-tank.git
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131 lines
3.5 KiB
Python
131 lines
3.5 KiB
Python
from progressbar import ProgressBar, ETA, ReverseBar, Bar
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from collections import namedtuple
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import logging
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class DefaultProgressBar(ProgressBar):
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"""
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progressbar with predefined parameters
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"""
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def __init__(self, maxval, caption=''):
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widgets = [caption, Bar('>'), ' ', ETA(), ' ', ReverseBar('<')]
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super(DefaultProgressBar, self).__init__(
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widgets=widgets, maxval=maxval)
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def progress(gen, caption='', pb_class=DefaultProgressBar):
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"""
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Make a generator that displays a progress bar from
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generator gen, set caption and choose the class to
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use (DefaultProgressBar by default)
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Generator should have __len__ method returning it's
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size.
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Progress bar class constructor should take two
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parameters:
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* generator size
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* progress bar caption.
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It also should have start, update and finish methods.
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"""
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pbar = None
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if len(gen):
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pbar = pb_class(len(gen), caption).start() if pb_class else None
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i = 0
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for elem in gen:
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if pbar:
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pbar.update(i)
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i += 1
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yield(elem)
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if pbar:
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pbar.finish()
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StepperInfo = namedtuple(
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'StepperInfo',
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'loop_count,steps,loadscheme,duration,ammo_count'
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)
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class StepperStatus(object):
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'''
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Raises StopIteration when limits are reached.
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'''
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def __init__(self):
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self.log = logging.getLogger(__name__)
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self.info = {
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'loop_count': 0,
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'steps': None,
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'loadscheme': None,
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'duration': None,
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'ammo_count': 0,
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}
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self._ammo_count = 0
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self._loop_count = 0
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self.ammo_file_position = None
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self.ammo_file_size = None
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self.loop_limit = None
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self.ammo_limit = None
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self.lp_len = None
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def publish(self, key, value):
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if key not in self.info:
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raise RuntimeError(
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"Tryed to publish to a non-existent key: %s" % key)
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self.log.debug('Published %s to %s', value, key)
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self.info[key] = value
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@property
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def ammo_count(self):
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return self._ammo_count
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@ammo_count.setter
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def ammo_count(self, value):
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self._ammo_count = value
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self.update_view()
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if self.ammo_limit and value > self.ammo_limit:
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raise StopIteration
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def inc_ammo_count(self):
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self.ammo_count += 1
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@property
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def loop_count(self):
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return self._loop_count
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@loop_count.setter
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def loop_count(self, value):
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self._loop_count = value
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self.update_view()
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if self.loop_limit and value > self.loop_limit:
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raise StopIteration
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def inc_loop_count(self):
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self.loop_count += 1
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def get_info(self):
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self.info['ammo_count'] = self._ammo_count
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self.info['loop_count'] = self._loop_count
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for key in self.info:
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if self.info[key] is None:
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raise RuntimeError(
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"Information for %s is not published yet." % key)
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return StepperInfo(**self.info)
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def update_view(self):
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if self.ammo_file_position and self.ammo_file_size:
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bytes_read = self.ammo_file_position + \
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(self.ammo_file_size * self.loop_count)
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if self.lp_len:
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avg_ammo_size = float(bytes_read) / self.ammo_count
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progress = bytes_read * 100 / (self.lp_len * avg_ammo_size)
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#print progress
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# TODO: show data on screen
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status = StepperStatus()
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