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# coding: utf8 |
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""" |
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This software is licensed under the Apache 2 license, quoted below. |
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Copyright 2014 Crystalnix Limited |
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Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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use this file except in compliance with the License. You may obtain a copy of |
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the License at |
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http://www.apache.org/licenses/LICENSE-2.0 |
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Unless required by applicable law or agreed to in writing, software |
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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License for the specific language governing permissions and limitations under |
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the License. |
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""" |
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from functools import wraps |
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import datetime |
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import calendar |
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from singledispatch import singledispatch |
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from django_redis import get_redis_connection |
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from redis.exceptions import WatchError |
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from django.utils import timezone |
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from omaha.settings import KEY_PREFIX, KEY_LAST_ID |
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__all__ = ['get_sec_since_midnight', 'get_id'] |
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redis = get_redis_connection('statistics') |
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def get_sec_since_midnight(date): |
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""" |
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Return seconds since midnight |
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>>> from datetime import datetime |
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>>> get_sec_since_midnight(datetime(year=2014, month=1, day=1, second=42)) |
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42 |
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""" |
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midnight = date.replace(hour=0, minute=0, second=0, microsecond=0) |
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delta = date - midnight |
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return delta.seconds |
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def get_id(uuid): |
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""" |
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>>> get_id('{8C65E04C-0383-4AE2-893F-4EC7C58F70DC}') |
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1 |
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>>> get_id('{8C65E04C-0383-4AE2-893F-4EC7C58F70DC}') |
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1 |
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""" |
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id = redis.get('{}:{}'.format(KEY_PREFIX, uuid)) |
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if id is None: |
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id = create_id(uuid) |
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return int(id) |
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def create_id(uuid): |
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""" |
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>>> create_id('{8C65E04C-0383-4AE2-893F-4EC7C58F70DC}') |
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1 |
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""" |
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with redis.pipeline() as pipe: |
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while True: |
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try: |
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pipe.watch(KEY_LAST_ID) |
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current_id = pipe.get(KEY_LAST_ID) or 0 |
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next_id = int(current_id) + 1 |
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pipe.multi() |
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pipe.set(KEY_LAST_ID, next_id) |
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pipe.execute() |
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redis.set('{}:{}'.format(KEY_PREFIX, uuid), next_id) |
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return next_id |
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except WatchError: |
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continue |
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except: |
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raise |
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def valuedispatch(func): |
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_func = singledispatch(func) |
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@wraps(func) |
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def wrapper(*args, **kwargs): |
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return _func.registry.get(args[0], _func)(*args, **kwargs) |
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wrapper.register = _func.register |
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wrapper.dispatch = _func.dispatch |
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wrapper.registry = _func.registry |
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return wrapper |
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def make_piechart(id, data, unit='users'): |
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xdata = [i[0] for i in data] |
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ydata = [i[1] for i in data] |
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extra_serie = { |
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"tooltip": {"y_start": "", "y_end": " " + unit}, |
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} |
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chartdata = {'x': xdata, 'y1': ydata, 'extra1': extra_serie} |
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charttype = "pieChart" |
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chartcontainer = 'chart_container_%s' % id # container name |
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data = { |
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'charttype': charttype, |
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'chartdata': chartdata, |
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'chartcontainer': chartcontainer, |
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'extra': { |
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'x_is_date': False, |
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'x_axis_format': '', |
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'tag_script_js': True, |
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'jquery_on_ready': False, |
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} |
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} |
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return data |
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def make_discrete_bar_chart(id, data): |
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xdata = [i[0] for i in data] |
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ydata = [i[1] for i in data] |
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extra_serie1 = {"tooltip": {"y_start": "", "y_end": " cal"}} |
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chartdata = { |
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'x': xdata, 'name1': '', 'y1': ydata, 'extra1': extra_serie1, |
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} |
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charttype = "discreteBarChart" |
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chartcontainer = 'chart_container_%s' % id # container name |
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data = { |
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'charttype': charttype, |
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'chartdata': chartdata, |
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'chartcontainer': chartcontainer, |
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'extra': { |
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'x_is_date': False, |
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'x_axis_format': '', |
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'tag_script_js': True, |
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'jquery_on_ready': True, |
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}, |
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} |
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return data |
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def get_month_range_from_dict(source): |
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""" |
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:param request: dictionary with keys 'start' and 'end |
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:return: a tuple of datatime objects in the form (start, end) |
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""" |
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now = timezone.now() |
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start = source.get('start') |
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if not start: |
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start = datetime.datetime(now.year-1, now.month+1, 1) if now.month != 12 else datetime.datetime(now.year, now.month, 1) |
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end = source.get('end', datetime.datetime(now.year, now.month, calendar.monthrange(now.year, now.month)[1])) |
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return start, end |
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Crystalnix /
omaha-server
