old_contents: # -*- coding: utf8 -*-
  
  """
  Copyright (C) 2012-2014 Andreas Würl
  
  This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3.
  
  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
  
  You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
  
  """
  
  from injector import inject
  import time
  import blitzortung.db.query_builder
  
  
  class HistogramQuery(object):
  
      __slots__ = ['strike_query_builder']
  
      @inject(strike_query_builder=blitzortung.db.query_builder.Strike)
      def __init__(self, strike_query_builder):
          self.strike_query_builder = strike_query_builder
  
      def create(self, connection, minute_length, minute_offset, region=None, envelope=None, count_threshold=0):
          reference_time = time.time()
          query = self.strike_query_builder.histogram_query(blitzortung.db.table.Strike.TABLE_NAME, minute_length,
                                                            minute_offset, 5, region, envelope)
          histogram_query = connection.runQuery(str(query), query.get_parameters())
          histogram_query.addCallback(self.build_result, minutes=minute_length, bin_size=5,
                                      reference_time=reference_time)
          return histogram_query
  
      @staticmethod
      def build_result(query_result, minutes, bin_size, reference_time):
          time_duration = time.time() - reference_time
          print("histogram: query %.03fs" % time_duration)
          value_count = int(minutes / bin_size)
  
          result = [0] * value_count
  
          for bin_data in query_result:
              result[bin_data[0] + value_count - 1] = bin_data[1]
  
          return result
  
new_contents: # -*- coding: utf8 -*-
  
  """
  Copyright (C) 2012-2014 Andreas Würl
  
  This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3.
  
  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
  
  You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
  
  """
  
  from injector import inject
  import time
  import blitzortung.db.query_builder
  
  
  class HistogramQuery(object):
      @inject(strike_query_builder=blitzortung.db.query_builder.Strike)
      def __init__(self, strike_query_builder):
          self.strike_query_builder = strike_query_builder
  
      def create(self, connection, minute_length, minute_offset, region=None, envelope=None, count_threshold=0):
          reference_time = time.time()
          query = self.strike_query_builder.histogram_query(blitzortung.db.table.Strike.TABLE_NAME, minute_length,
                                                            minute_offset, 5, region, envelope)
          histogram_query = connection.runQuery(str(query), query.get_parameters())
          histogram_query.addCallback(self.build_result, minutes=minute_length, bin_size=5,
                                      reference_time=reference_time)
          return histogram_query
  
      @staticmethod
      def build_result(query_result, minutes, bin_size, reference_time):
          time_duration = time.time() - reference_time
          print("histogram: query %.03fs" % time_duration)
          value_count = int(minutes / bin_size)
  
          result = [0] * value_count
  
          for bin_data in query_result:
              result[bin_data[0] + value_count - 1] = bin_data[1]
  
          return result
  
subject: remove __slots__ declaration to fix DI