1 // Copyright 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.
5 #ifndef SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
6 #define SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
11 #include "base/compiler_specific.h"
12 #include "sync/base/sync_export.h"
13 #include "sync/internal_api/public/base/model_type.h"
14 #include "sync/internal_api/public/data_type_debug_info_listener.h"
15 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
16 #include "sync/internal_api/public/sync_encryption_handler.h"
17 #include "sync/internal_api/public/sync_manager.h"
18 #include "sync/internal_api/public/util/weak_handle.h"
19 #include "sync/js/js_backend.h"
20 #include "sync/protocol/sync.pb.h"
21 #include "sync/sessions/debug_info_getter.h"
25 // In order to track datatype association results, we need at least as many
26 // entries as datatypes. Reserve additional space for other kinds of events that
27 // are likely to happen during first sync or startup.
28 const unsigned int kMaxEntries = MODEL_TYPE_COUNT + 10;
30 // Listens to events and records them in a queue. And passes the events to
31 // syncer when requested.
32 // This class is not thread safe and should only be accessed on the sync thread.
33 class SYNC_EXPORT_PRIVATE DebugInfoEventListener
34 : public SyncManager::Observer,
35 public SyncEncryptionHandler::Observer,
36 public sessions::DebugInfoGetter,
37 public DataTypeDebugInfoListener {
39 DebugInfoEventListener();
40 virtual ~DebugInfoEventListener();
42 // SyncManager::Observer implementation.
43 virtual void OnSyncCycleCompleted(
44 const sessions::SyncSessionSnapshot& snapshot) OVERRIDE;
45 virtual void OnInitializationComplete(
46 const WeakHandle<JsBackend>& js_backend,
47 const WeakHandle<DataTypeDebugInfoListener>& debug_listener,
48 bool success, ModelTypeSet restored_types) OVERRIDE;
49 virtual void OnConnectionStatusChange(
50 ConnectionStatus connection_status) OVERRIDE;
51 virtual void OnActionableError(
52 const SyncProtocolError& sync_error) OVERRIDE;
53 virtual void OnMigrationRequested(ModelTypeSet types) OVERRIDE;
54 virtual void OnProtocolEvent(const ProtocolEvent& event) OVERRIDE;
56 // SyncEncryptionHandler::Observer implementation.
57 virtual void OnPassphraseRequired(
58 PassphraseRequiredReason reason,
59 const sync_pb::EncryptedData& pending_keys) OVERRIDE;
60 virtual void OnPassphraseAccepted() OVERRIDE;
61 virtual void OnBootstrapTokenUpdated(
62 const std::string& bootstrap_token,
63 BootstrapTokenType type) OVERRIDE;
64 virtual void OnEncryptedTypesChanged(
65 ModelTypeSet encrypted_types,
66 bool encrypt_everything) OVERRIDE;
67 virtual void OnEncryptionComplete() OVERRIDE;
68 virtual void OnCryptographerStateChanged(
69 Cryptographer* cryptographer) OVERRIDE;
70 virtual void OnPassphraseTypeChanged(
72 base::Time explicit_passphrase_time) OVERRIDE;
74 // Sync manager events.
75 void OnNudgeFromDatatype(ModelType datatype);
76 void OnIncomingNotification(const ObjectIdInvalidationMap& invalidations);
78 // DebugInfoGetter implementation.
79 virtual void GetDebugInfo(sync_pb::DebugInfo* debug_info) OVERRIDE;
81 // DebugInfoGetter implementation.
82 virtual void ClearDebugInfo() OVERRIDE;
84 // DataTypeDebugInfoListener implementation.
85 virtual void OnDataTypeConfigureComplete(
86 const std::vector<DataTypeConfigurationStats>& configuration_stats)
89 // Returns a weak pointer to this object.
90 base::WeakPtr<DataTypeDebugInfoListener> GetWeakPtr();
93 FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyEventsAdded);
94 FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyQueueSize);
95 FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyGetEvents);
96 FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyClearEvents);
98 void AddEventToQueue(const sync_pb::DebugEventInfo& event_info);
99 void CreateAndAddEvent(sync_pb::SyncEnums::SingletonDebugEventType type);
101 typedef std::deque<sync_pb::DebugEventInfo> DebugEventInfoQueue;
102 DebugEventInfoQueue events_;
104 // True indicates we had to drop one or more events to keep our limit of
106 bool events_dropped_;
108 // Cryptographer has keys that are not yet decrypted.
109 bool cryptographer_has_pending_keys_;
111 // Cryptographer is initialized and does not have pending keys.
112 bool cryptographer_ready_;
114 base::ThreadChecker thread_checker_;
116 base::WeakPtrFactory<DebugInfoEventListener> weak_ptr_factory_;
118 DISALLOW_COPY_AND_ASSIGN(DebugInfoEventListener);
121 } // namespace syncer
123 #endif // SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_