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| 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. | |
| 4 // | |
| 5 // An implementation of Invalidator that wraps an invalidation | |
| 6 // client. Handles the details of connecting to XMPP and hooking it | |
| 7 // up to the invalidation client. | |
| 8 // | |
| 9 // You probably don't want to use this directly; use | |
| 10 // NonBlockingInvalidator. | |
| 11 | |
| 12 #ifndef COMPONENTS_INVALIDATION_INVALIDATION_NOTIFIER_H_ | |
| 13 #define COMPONENTS_INVALIDATION_INVALIDATION_NOTIFIER_H_ | |
| 14 | |
| 15 #include <string> | |
| 16 | |
| 17 #include "base/basictypes.h" | |
| 18 #include "base/compiler_specific.h" | |
| 19 #include "base/memory/scoped_ptr.h" | |
| 20 #include "base/threading/non_thread_safe.h" | |
| 21 #include "components/invalidation/invalidation_export.h" | |
| 22 #include "components/invalidation/invalidator_registrar.h" | |
| 23 #include "components/invalidation/sync_invalidation_listener.h" | |
| 24 #include "sync/internal_api/public/base/model_type.h" | |
| 25 #include "sync/internal_api/public/util/weak_handle.h" | |
| 26 #include "sync/notifier/invalidation_state_tracker.h" | |
| 27 #include "sync/notifier/invalidator.h" | |
| 28 | |
| 29 namespace notifier { | |
| 30 class PushClient; | |
| 31 } // namespace notifier | |
| 32 | |
| 33 namespace syncer { | |
| 34 | |
| 35 // This class must live on the IO thread. | |
| 36 class INVALIDATION_EXPORT_PRIVATE InvalidationNotifier | |
| 37 : public Invalidator, | |
| 38 public SyncInvalidationListener::Delegate, | |
| 39 public base::NonThreadSafe { | |
| 40 public: | |
| 41 // |invalidation_state_tracker| must be initialized. | |
| 42 InvalidationNotifier( | |
| 43 scoped_ptr<SyncNetworkChannel> network_channel, | |
| 44 const std::string& invalidator_client_id, | |
| 45 const UnackedInvalidationsMap& saved_invalidations, | |
| 46 const std::string& invalidation_bootstrap_data, | |
| 47 const WeakHandle<InvalidationStateTracker>& | |
| 48 invalidation_state_tracker, | |
| 49 const std::string& client_info); | |
| 50 | |
| 51 virtual ~InvalidationNotifier(); | |
| 52 | |
| 53 // Invalidator implementation. | |
| 54 virtual void RegisterHandler(InvalidationHandler* handler) OVERRIDE; | |
| 55 virtual void UpdateRegisteredIds(InvalidationHandler* handler, | |
| 56 const ObjectIdSet& ids) OVERRIDE; | |
| 57 virtual void UnregisterHandler(InvalidationHandler* handler) OVERRIDE; | |
| 58 virtual InvalidatorState GetInvalidatorState() const OVERRIDE; | |
| 59 virtual void UpdateCredentials( | |
| 60 const std::string& email, const std::string& token) OVERRIDE; | |
| 61 virtual void RequestDetailedStatus( | |
| 62 base::Callback<void(const base::DictionaryValue&)> callback) const | |
| 63 OVERRIDE; | |
| 64 | |
| 65 // SyncInvalidationListener::Delegate implementation. | |
| 66 virtual void OnInvalidate( | |
| 67 const ObjectIdInvalidationMap& invalidation_map) OVERRIDE; | |
| 68 virtual void OnInvalidatorStateChange(InvalidatorState state) OVERRIDE; | |
| 69 | |
| 70 private: | |
| 71 // We start off in the STOPPED state. When we get our initial | |
| 72 // credentials, we connect and move to the CONNECTING state. When | |
| 73 // we're connected we start the invalidation client and move to the | |
| 74 // STARTED state. We never go back to a previous state. | |
| 75 enum State { | |
| 76 STOPPED, | |
| 77 CONNECTING, | |
| 78 STARTED | |
| 79 }; | |
| 80 State state_; | |
| 81 | |
| 82 InvalidatorRegistrar registrar_; | |
| 83 | |
| 84 // Passed to |invalidation_listener_|. | |
| 85 const UnackedInvalidationsMap saved_invalidations_; | |
| 86 | |
| 87 // Passed to |invalidation_listener_|. | |
| 88 const WeakHandle<InvalidationStateTracker> | |
| 89 invalidation_state_tracker_; | |
| 90 | |
| 91 // Passed to |invalidation_listener_|. | |
| 92 const std::string client_info_; | |
| 93 | |
| 94 // The client ID to pass to |invalidation_listener_|. | |
| 95 const std::string invalidator_client_id_; | |
| 96 | |
| 97 // The initial bootstrap data to pass to |invalidation_listener_|. | |
| 98 const std::string invalidation_bootstrap_data_; | |
| 99 | |
| 100 // The invalidation listener. | |
| 101 SyncInvalidationListener invalidation_listener_; | |
| 102 | |
| 103 DISALLOW_COPY_AND_ASSIGN(InvalidationNotifier); | |
| 104 }; | |
| 105 | |
| 106 } // namespace syncer | |
| 107 | |
| 108 #endif // COMPONENTS_INVALIDATION_INVALIDATION_NOTIFIER_H_ | |
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