text: # 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.
  
  import plyvel
  
  from urlparse import urlparse
  
  class DBLevelUP(object):
      def __init__(self, uri):
          db_params = urlparse(uri)
          self.db = plyvel.DB(db_params.path, create_if_missing=True)
  
      def write(self, data):
          with self.db.write_batch() as wb:
              for item in data:
                  wb.put(str(item['tags']['id']), str(item['fields']['views']))
  
      def getVIDs(self):
          return list(self.db)
  