text: #!/usr/bin/env python
  #############################################################################
  # Copyright (c) 2015-2018 Balabit
  #
  # This program is free software; you can redistribute it and/or modify it
  # under the terms of the GNU General Public License version 2 as published
  # by the Free Software Foundation, or (at your option) any later version.
  #
  # 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 General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program; if not, write to the Free Software
  # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  #
  # As an additional exemption you are allowed to compile & link against the
  # OpenSSL libraries as published by the OpenSSL project. See the file
  # COPYING for details.
  #
  #############################################################################
  from pathlib2 import Path
  
  import src.testcase_parameters.testcase_parameters as tc_parameters
  from src.message_reader.message_reader import MessageReader
  from src.message_reader.single_line_parser import SingleLineParser
  from src.syslog_ng_config.statements.destinations.destination_driver import DestinationDriver
  
  
  class ExampleDestination(DestinationDriver):
      def __init__(self, filename, **options):
          self.driver_name = "example-destination"
          self.path = Path(tc_parameters.WORKING_DIR, filename)
          super(ExampleDestination, self).__init__(None, dict({"filename": self.path.resolve()}, **options))
  
      def wait_file_content(self, content):
          with self.path.open() as f:
              message_reader = MessageReader(f.readline, SingleLineParser())
  
              while True:
                  msg = message_reader.pop_messages(1)[0]
                  if content in msg:
                      return True
  
              return False
  