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1 // Copyright (c) 2011 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 #include "chrome/browser/sync/engine/apply_updates_command.h"
6 
7 #include "chrome/browser/sync/engine/update_applicator.h"
8 #include "chrome/browser/sync/sessions/sync_session.h"
9 #include "chrome/browser/sync/syncable/directory_manager.h"
10 #include "chrome/browser/sync/syncable/syncable.h"
11 
12 namespace browser_sync {
13 
14 using sessions::SyncSession;
15 
ApplyUpdatesCommand()16 ApplyUpdatesCommand::ApplyUpdatesCommand() {}
~ApplyUpdatesCommand()17 ApplyUpdatesCommand::~ApplyUpdatesCommand() {}
18 
ModelChangingExecuteImpl(SyncSession * session)19 void ApplyUpdatesCommand::ModelChangingExecuteImpl(SyncSession* session) {
20   syncable::ScopedDirLookup dir(session->context()->directory_manager(),
21                                 session->context()->account_name());
22   if (!dir.good()) {
23     LOG(ERROR) << "Scoped dir lookup failed!";
24     return;
25   }
26   syncable::WriteTransaction trans(dir, syncable::SYNCER, __FILE__, __LINE__);
27   syncable::Directory::UnappliedUpdateMetaHandles handles;
28   dir->GetUnappliedUpdateMetaHandles(&trans, &handles);
29 
30   UpdateApplicator applicator(
31       session->context()->resolver(),
32       session->context()->directory_manager()->GetCryptographer(&trans),
33       handles.begin(), handles.end(), session->routing_info(),
34       session->status_controller()->group_restriction());
35   while (applicator.AttemptOneApplication(&trans)) {}
36   applicator.SaveProgressIntoSessionState(
37       session->status_controller()->mutable_conflict_progress(),
38       session->status_controller()->mutable_update_progress());
39 
40   // This might be the first time we've fully completed a sync cycle, for
41   // some subset of the currently synced datatypes.
42   sessions::StatusController* status(session->status_controller());
43   if (status->ServerSaysNothingMoreToDownload()) {
44     syncable::ScopedDirLookup dir(session->context()->directory_manager(),
45                                   session->context()->account_name());
46     if (!dir.good()) {
47       LOG(ERROR) << "Scoped dir lookup failed!";
48       return;
49     }
50 
51     for (int i = syncable::FIRST_REAL_MODEL_TYPE;
52          i < syncable::MODEL_TYPE_COUNT; ++i) {
53       syncable::ModelType model_type = syncable::ModelTypeFromInt(i);
54       if (status->updates_request_types()[i]) {
55         // This gets persisted to the directory's backing store.
56         dir->set_initial_sync_ended_for_type(model_type, true);
57       }
58     }
59   }
60 }
61 
62 }  // namespace browser_sync
63