chrome/common/extensions/docs/server2/template_data_source.py

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 import logging
   6 import traceback
   7
   8 from data_source import DataSource
   9 from extensions_paths import PRIVATE_TEMPLATES
  10 from file_system import FileNotFoundError
  11 from future import Future
  12
  13
  14 class TemplateDataSource(DataSource):
  15   '''Provides a DataSource interface for compiled templates.
  16   '''
  17
  18   def __init__(self, server_instance, _, partial_dir=PRIVATE_TEMPLATES):
  19     self._template_cache = server_instance.compiled_fs_factory.ForTemplates(
  20         server_instance.host_file_system_provider.GetTrunk())
  21     self._partial_dir = partial_dir
  22
  23   def get(self, path):
  24     try:
  25       return self._template_cache.GetFromFile('%s/%s.html' %
  26           (self._partial_dir, path)).Get()
  27     except FileNotFoundError:
  28       logging.warning(traceback.format_exc())
  29       return None
  30
  31   def Cron(self):
  32     # TODO(kalman): Implement this; probably by finding all files that can be
  33     # compiled to templates underneath |self._partial_dir| and compiling them.
  34     return Future(value=())