components/invalidation/invalidation_logger_observer.h

   1 // Copyright 2014 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 #ifndef COMPONENTS_INVALIDATION_INVALIDATION_LOGGER_OBSERVER_H_
   6 #define COMPONENTS_INVALIDATION_INVALIDATION_LOGGER_OBSERVER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "sync/notifier/invalidation_util.h"
  10 #include "sync/notifier/invalidator_state.h"
  11 #include "sync/notifier/object_id_invalidation_map.h"
  12
  13 namespace base {
  14 class DictionaryValue;
  15 }  // namespace base
  16
  17 namespace syncer {
  18 class InvalidationHandler;
  19 class ObjectIdInvalidationMap;
  20 }  // namespace syncer
  21
  22 namespace invalidation {
  23 // This class provides the possibilty to register as an observer for the
  24 // InvalidationLogger notifications whenever an InvalidatorService changes
  25 // its internal state.
  26 // (i.e. A new registration, a new invalidation, a TICL/GCM state change)
  27 class InvalidationLoggerObserver {
  28  public:
  29   virtual void OnRegistrationChange(
  30       const std::multiset<std::string>& registered_handlers) = 0;
  31   virtual void OnStateChange(const syncer::InvalidatorState& new_state,
  32                              const base::Time& last_change_timestamp) = 0;
  33   virtual void OnUpdateIds(const std::string& handler_name,
  34                            const syncer::ObjectIdCountMap& details) = 0;
  35   virtual void OnDebugMessage(const base::DictionaryValue& details) = 0;
  36   virtual void OnInvalidation(
  37       const syncer::ObjectIdInvalidationMap& details) = 0;
  38   virtual void OnDetailedStatus(const base::DictionaryValue& details) = 0;
  39
  40  protected:
  41   virtual ~InvalidationLoggerObserver() {}
  42 };
  43
  44 }  // namespace invalidation
  45
  46 #endif  // COMPONENTS_INVALIDATION_INVALIDATION_LOGGER_OBSERVER_H_