Extensions Docs Server: Internationalized samples

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

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 
 class FileSystemCache(object):
   """This class caches FileSystem data that has been processed.
   """
   class Builder(object):
     """A class to build a FileSystemCache.
     """
     def __init__(self, file_system):
       self._file_system = file_system
 
     def build(self, populate_function):
       return FileSystemCache(self._file_system, populate_function)
 
   class _CacheEntry(object):
     def __init__(self, cache_data, version):
       self._cache_data = cache_data
       self.version = version
 
   def __init__(self, file_system, populate_function):
     self._file_system = file_system
     self._populate_function = populate_function
     self._cache = {}
 
-  def _FetchFile(self, filename):
-    return self._file_system.Read([filename]).Get()[filename]
-
   def _RecursiveList(self, files):
     all_files = files[:]
     dirs = {}
     for filename in files:
       if filename.endswith('/'):
         all_files.remove(filename)
         dirs.update(self._file_system.Read([filename]).Get())
     for dir_, files in dirs.iteritems():
       all_files.extend(self._RecursiveList([dir_ + f for f in files]))
     return all_files
 
   def GetFromFile(self, path):
     """Calls |populate_function| on the contents of the file at |path|.
     """
     version = self._file_system.Stat(path).version
     if path in self._cache:
       if version > self._cache[path].version:
         self._cache.pop(path)
       else:
         return self._cache[path]._cache_data
-    cache_data = self._FetchFile(path)
+    cache_data = self._file_system.ReadSingle(path)
     self._cache[path] = self._CacheEntry(self._populate_function(cache_data),
                                          version)
     return self._cache[path]._cache_data
 
   def GetFromFileListing(self, path):
     """Calls |populate_function| on the listing of the files at |path|.
     Assumes that the path given is to a directory.
     """
     if not path.endswith('/'):
       path += '/'
     version = self._file_system.Stat(path).version
     if path in self._cache:
       if version > self._cache[path].version:
         self._cache.pop(path)
       else:
         return self._cache[path]._cache_data
-    cache_data = self._RecursiveList([path + f for f in self._FetchFile(path)])
+    cache_data = self._RecursiveList(
+        [path + f for f in self._file_system.ReadSingle(path)])
     self._cache[path] = self._CacheEntry(self._populate_function(cache_data),
                                          version)
     return self._cache[path]._cache_data