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#!/bin/env python
##
## Copyright (c) 2010-2017 Intel Corporation
##
## 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.
##
from decimal import *
from time import time
class Progress:
def __init__(self, limit, fieldNames = [], overallETA = True):
self._fieldNames = fieldNames;
self._limit = limit;
self._progress = 0;
self._prevProgress = 0;
self._prevTime = 0;
self._progressSetCount = 0;
self._time = 0;
self._overallETA = overallETA;
def setProgress(self, progress, fieldValues = []):
self._fieldValues = fieldValues;
if (self._overallETA == True):
self._progress = progress
self._time = time();
if (self._progressSetCount == 0):
self._prevProgress = self._progress;
self._prevTime = self._time;
else:
self._prevProgress = self._progress;
self._prevTime = self._time;
self._progress = progress;
self._time = time();
self._progressSetCount += 1
def incrProgress(self):
self.setProgress(self._progress + 1);
def toString(self):
ret = ""
ret += str(self._getETA()) + " seconds left"
for f,v in zip(self._fieldNames, self._fieldValues):
ret += ", %s=%s" % (str(f),str(v))
return ret;
def _getETA(self):
if (self._progressSetCount < 2):
return "N/A"
diff = self._progress - self._prevProgress;
t_diff = Decimal(self._time - self._prevTime);
if (t_diff < 0.001 or diff <= 0):
return "N/A"
rate = Decimal(diff)/t_diff
remaining = Decimal(self._limit - self._progress);
return round(remaining/rate, 2);
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