components/invalidation/invalidation_service_android.h

   1 // Copyright (c) 2013 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_SERVICE_ANDROID_H_
   6 #define COMPONENTS_INVALIDATION_INVALIDATION_SERVICE_ANDROID_H_
   7
   8 #include <jni.h>
   9 #include <map>
  10
  11 #include "base/android/jni_android.h"
  12 #include "base/android/scoped_java_ref.h"
  13 #include "base/basictypes.h"
  14 #include "base/compiler_specific.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "base/threading/non_thread_safe.h"
  17 #include "components/invalidation/invalidation_logger.h"
  18 #include "components/invalidation/invalidation_service.h"
  19 #include "components/invalidation/invalidator_registrar.h"
  20 #include "components/keyed_service/core/keyed_service.h"
  21
  22 namespace invalidation {
  23
  24 class InvalidationLogger;
  25
  26 // This InvalidationService is used to deliver invalidations on Android.  The
  27 // Android operating system has its own mechanisms for delivering invalidations.
  28 class InvalidationServiceAndroid
  29     : public base::NonThreadSafe,
  30       public InvalidationService {
  31  public:
  32   explicit InvalidationServiceAndroid(jobject context);
  33   ~InvalidationServiceAndroid() override;
  34
  35   // InvalidationService implementation.
  36   //
  37   // Note that this implementation does not properly support Ack-tracking,
  38   // fetching the invalidator state, or querying the client's ID.  Support for
  39   // exposing the client ID should be available soon; see crbug.com/172391.
  40   void RegisterInvalidationHandler(
  41       syncer::InvalidationHandler* handler) override;
  42   bool UpdateRegisteredInvalidationIds(syncer::InvalidationHandler* handler,
  43                                        const syncer::ObjectIdSet& ids) override;
  44   void UnregisterInvalidationHandler(
  45       syncer::InvalidationHandler* handler) override;
  46   syncer::InvalidatorState GetInvalidatorState() const override;
  47   std::string GetInvalidatorClientId() const override;
  48   InvalidationLogger* GetInvalidationLogger() override;
  49   void RequestDetailedStatus(
  50       base::Callback<void(const base::DictionaryValue&)> caller) const override;
  51   IdentityProvider* GetIdentityProvider() override;
  52
  53   void Invalidate(JNIEnv* env,
  54                   jobject obj,
  55                   jint object_source,
  56                   jstring object_id,
  57                   jlong version,
  58                   jstring state);
  59
  60   // The InvalidationServiceAndroid always reports that it is enabled.
  61   // This is used only by unit tests.
  62   void TriggerStateChangeForTest(syncer::InvalidatorState state);
  63
  64   static bool RegisterJni(JNIEnv* env);
  65
  66  private:
  67   typedef std::map<invalidation::ObjectId,
  68                    int64,
  69                    syncer::ObjectIdLessThan> ObjectIdVersionMap;
  70
  71   // Friend class so that InvalidationServiceFactoryAndroid has access to
  72   // private member object java_ref_.
  73   friend class InvalidationServiceFactoryAndroid;
  74
  75   // Points to a Java instance of InvalidationService.
  76   base::android::ScopedJavaGlobalRef<jobject> java_ref_;
  77
  78   syncer::InvalidatorRegistrar invalidator_registrar_;
  79   syncer::InvalidatorState invalidator_state_;
  80
  81   // The invalidation API spec allows for the possibility of redundant
  82   // invalidations, so keep track of the max versions and drop
  83   // invalidations with old versions.
  84   ObjectIdVersionMap max_invalidation_versions_;
  85
  86   // The invalidation logger object we use to record state changes
  87   // and invalidations.
  88   InvalidationLogger logger_;
  89
  90   DISALLOW_COPY_AND_ASSIGN(InvalidationServiceAndroid);
  91 };
  92
  93 }  // namespace invalidation
  94
  95 #endif  // COMPONENTS_INVALIDATION_INVALIDATION_SERVICE_ANDROID_H_