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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 
     16 ApplyUpdatesCommand::ApplyUpdatesCommand() {}
     17 ApplyUpdatesCommand::~ApplyUpdatesCommand() {}
     18 
     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