Linking AvailabilityFinder with APIDataSource and intro-table templates.

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

+# Copyright 2013 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.
+
+from caching_file_system import CachingFileSystem
+from local_file_system import LocalFileSystem
+from object_store_creator import ObjectStoreCreator
+from offline_file_system import OfflineFileSystem
+from subversion_file_system import SubversionFileSystem
+from test_branch_utility import TestBranchUtility
+
+
+class HostFileSystemCreator(object):
+  '''Creates file systems using a create method provided by a servlet.
+  '''
+  def __init__(self,
+               branch_utility,
+               create_method,
+               object_store_creator=None,

[not at google - send to devlin, 2013/07/09 23:11:55]

how/why can/should this be None?

[epeterson, 2013/07/16 00:28:23]

It is None no longer!

+               offline=True):

[not at google - send to devlin, 2013/07/09 23:11:55]

always default to False. it makes sense here.

[epeterson, 2013/07/16 00:28:23]

Done.

+     self._branch_utility = branch_utility
+     self._create_method = create_method
+     self._object_store_creator = object_store_creator
+     if object_store_creator:
+       self._caching = True
+     self._offline = offline
+
+  def CreateAtVersion(self, version):
+    branch = self._branch_utility.GetBranchForVersion(version)
+    return self.CreateAtBranch(branch)
+
+  def CreateAtBranch(self, branch):
+    fs = self._create_method(branch)
+    if self._offline:
+      fs = OfflineFileSystem(fs)
+    if self._caching:
+      fs = CachingFileSystem(fs, self._object_store_creator)
+    return fs
+
+  @staticmethod
+  def ForTest(file_system, object_store_creator):
+    return HostFileSystemCreator(TestBranchUtility.CreateWithCannedData(),
+                                 lambda _: file_system,
+                                 object_store_creator,
+                                 offline=False)
+
+  @staticmethod
+  def ForLocal(object_store_creator):
+    return HostFileSystemCreator(
+        TestBranchUtility.CreateWithCannedData(),
+        lambda _: CachingFileSystem(LocalFileSystem.Create(),
+                                    object_store_creator),
+        object_store_creator,
+        offline=False)