Extensions Docs Server: Large performance increase

chrome/common/extensions/docs/server2/samples_data_source.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 json
 import logging
 import re
 
+import file_system_cache as fs_cache
 import third_party.json_schema_compiler.json_comment_eater as json_comment_eater
 import third_party.json_schema_compiler.model as model
 import url_constants
 
 DEFAULT_ICON_PATH = '/images/sample-default-icon.png'
 
 class SamplesDataSource(object):
   """Constructs a list of samples and their respective files and api calls.
   """
 
   class Factory(object):
     """A factory to create SamplesDataSource instances bound to individual
     Requests.
     """
     def __init__(self,
                  branch,
                  file_system,
                  github_file_system,
                  cache_builder,
                  github_cache_builder,
                  samples_path):
       self._file_system = file_system
       self._github_file_system = github_file_system
       self._static_path = ((('/' + branch) if branch != 'local' else '') +
                            '/static')
-      self._extensions_cache = cache_builder.build(self._MakeSamplesList)
+      self._extensions_cache = cache_builder.build(self._MakeSamplesList,
+                                                   fs_cache.EXTENSIONS)
       self._apps_cache = github_cache_builder.build(
-          lambda x: self._MakeSamplesList(x, is_apps=True))
+          lambda x: self._MakeSamplesList(x, is_apps=True),
+          fs_cache.APPS)
       self._samples_path = samples_path
 
     def Create(self, request):
       """Returns a new SamplesDataSource bound to |request|.
       """
       return SamplesDataSource(self._extensions_cache,
                                self._apps_cache,
                                self._samples_path,
                                request)
 
@@ skipping 153 matching lines @@
     return return_list
 
   def __getitem__(self, key):
     return self.get(key)
 
   def get(self, key):
     return {
       'apps': lambda: self._CreateSamplesDict('apps'),
       'extensions': lambda: self._CreateSamplesDict('extensions')
     }.get(key, lambda: {})()