sync/sessions/sync_session.cc

   1 // Copyright (c) 2012 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 "sync/sessions/sync_session.h"
   6
   7 #include <algorithm>
   8 #include <iterator>
   9
  10 #include "base/logging.h"
  11 #include "sync/internal_api/public/base/model_type.h"
  12 #include "sync/internal_api/public/engine/model_safe_worker.h"
  13 #include "sync/syncable/directory.h"
  14
  15 namespace syncer {
  16 namespace sessions {
  17
  18 // static
  19 SyncSession* SyncSession::BuildForNudge(SyncSessionContext* context,
  20                                         Delegate* delegate,
  21                                         const SyncSourceInfo& source,
  22                                         const NudgeTracker* nudge_tracker) {
  23   return new SyncSession(context, delegate, source, nudge_tracker);
  24 }
  25
  26 // static
  27 SyncSession* SyncSession::Build(SyncSessionContext* context,
  28                                 Delegate* delegate,
  29                                 const SyncSourceInfo& source) {
  30   return new SyncSession(context, delegate, source, NULL);
  31 }
  32
  33 SyncSession::SyncSession(
  34     SyncSessionContext* context,
  35     Delegate* delegate,
  36     const SyncSourceInfo& source,
  37     const NudgeTracker* nudge_tracker)
  38     : context_(context),
  39       source_(source),
  40       delegate_(delegate),
  41       nudge_tracker_(nudge_tracker) {
  42   status_controller_.reset(new StatusController());
  43 }
  44
  45 SyncSession::~SyncSession() {}
  46
  47 SyncSessionSnapshot SyncSession::TakeSnapshot() const {
  48   syncable::Directory* dir = context_->directory();
  49
  50   ProgressMarkerMap download_progress_markers;
  51   for (int i = FIRST_REAL_MODEL_TYPE; i < MODEL_TYPE_COUNT; ++i) {
  52     ModelType type(ModelTypeFromInt(i));
  53     dir->GetDownloadProgressAsString(type, &download_progress_markers[type]);
  54   }
  55
  56   std::vector<int> num_entries_by_type(MODEL_TYPE_COUNT, 0);
  57   std::vector<int> num_to_delete_entries_by_type(MODEL_TYPE_COUNT, 0);
  58   dir->CollectMetaHandleCounts(&num_entries_by_type,
  59                                &num_to_delete_entries_by_type);
  60
  61   SyncSessionSnapshot snapshot(
  62       status_controller_->model_neutral_state(),
  63       download_progress_markers,
  64       delegate_->IsCurrentlyThrottled(),
  65       status_controller_->num_encryption_conflicts(),
  66       status_controller_->num_hierarchy_conflicts(),
  67       status_controller_->num_server_conflicts(),
  68       source_,
  69       context_->notifications_enabled(),
  70       dir->GetEntriesCount(),
  71       status_controller_->sync_start_time(),
  72       num_entries_by_type,
  73       num_to_delete_entries_by_type);
  74
  75   return snapshot;
  76 }
  77
  78 void SyncSession::SendEventNotification(SyncEngineEvent::EventCause cause) {
  79   SyncEngineEvent event(cause);
  80   event.snapshot = TakeSnapshot();
  81
  82   DVLOG(1) << "Sending event with snapshot: " << event.snapshot.ToString();
  83   context()->NotifyListeners(event);
  84 }
  85
  86 }  // namespace sessions
  87 }  // namespace syncer