components/invalidation/invalidation_service_android.cc

   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 #include "components/invalidation/invalidation_service_android.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_array.h"
   9 #include "base/android/jni_string.h"
  10 #include "base/callback.h"
  11 #include "components/invalidation/object_id_invalidation_map.h"
  12 #include "google/cacheinvalidation/types.pb.h"
  13 #include "jni/InvalidationService_jni.h"
  14
  15 using base::android::ConvertJavaStringToUTF8;
  16 using base::android::ConvertUTF8ToJavaString;
  17
  18 namespace invalidation {
  19
  20 InvalidationServiceAndroid::InvalidationServiceAndroid(jobject context)
  21     : invalidator_state_(syncer::INVALIDATIONS_ENABLED),
  22       logger_() {
  23   DCHECK(CalledOnValidThread());
  24   JNIEnv* env = base::android::AttachCurrentThread();
  25   base::android::ScopedJavaLocalRef<jobject> local_java_ref =
  26       Java_InvalidationService_create(env,
  27           context,
  28           reinterpret_cast<intptr_t>(this));
  29   java_ref_.Reset(env, local_java_ref.obj());
  30 }
  31
  32 InvalidationServiceAndroid::~InvalidationServiceAndroid() { }
  33
  34 void InvalidationServiceAndroid::RegisterInvalidationHandler(
  35     syncer::InvalidationHandler* handler) {
  36   DCHECK(CalledOnValidThread());
  37   invalidator_registrar_.RegisterHandler(handler);
  38   logger_.OnRegistration(handler->GetOwnerName());
  39 }
  40
  41 bool InvalidationServiceAndroid::UpdateRegisteredInvalidationIds(
  42     syncer::InvalidationHandler* handler,
  43     const syncer::ObjectIdSet& ids) {
  44   DCHECK(CalledOnValidThread());
  45   JNIEnv* env = base::android::AttachCurrentThread();
  46   DCHECK(env);
  47
  48   if (!invalidator_registrar_.UpdateRegisteredIds(handler, ids))
  49     return false;
  50   const syncer::ObjectIdSet& registered_ids =
  51       invalidator_registrar_.GetAllRegisteredIds();
  52
  53   // To call the corresponding method on the Java invalidation service, split
  54   // the object ids into object source and object name arrays.
  55   std::vector<int> sources;
  56   std::vector<std::string> names;
  57   syncer::ObjectIdSet::const_iterator id;
  58   for (id = registered_ids.begin(); id != registered_ids.end(); ++id) {
  59     sources.push_back(id->source());
  60     names.push_back(id->name());
  61   }
  62
  63   Java_InvalidationService_setRegisteredObjectIds(
  64       env,
  65       java_ref_.obj(),
  66       base::android::ToJavaIntArray(env, sources).obj(),
  67       base::android::ToJavaArrayOfStrings(env, names).obj());
  68
  69   logger_.OnUpdateIds(invalidator_registrar_.GetSanitizedHandlersIdsMap());
  70   return true;
  71 }
  72
  73 void InvalidationServiceAndroid::UnregisterInvalidationHandler(
  74     syncer::InvalidationHandler* handler) {
  75   DCHECK(CalledOnValidThread());
  76   invalidator_registrar_.UnregisterHandler(handler);
  77   logger_.OnUnregistration(handler->GetOwnerName());
  78 }
  79
  80 syncer::InvalidatorState
  81 InvalidationServiceAndroid::GetInvalidatorState() const {
  82   DCHECK(CalledOnValidThread());
  83   return invalidator_state_;
  84 }
  85
  86 std::string InvalidationServiceAndroid::GetInvalidatorClientId() const {
  87   DCHECK(CalledOnValidThread());
  88   JNIEnv* env = base::android::AttachCurrentThread();
  89   DCHECK(env);
  90
  91   // Ask the Java code to for the invalidator ID it's currently using.
  92   base::android::ScopedJavaLocalRef<_jbyteArray*> id_bytes_java =
  93       Java_InvalidationService_getInvalidatorClientId(env, java_ref_.obj());
  94
  95   // Convert it into a more convenient format for C++.
  96   std::vector<uint8_t> id_bytes;
  97   base::android::JavaByteArrayToByteVector(env, id_bytes_java.obj(), &id_bytes);
  98   std::string id(id_bytes.begin(), id_bytes.end());
  99
 100   return id;
 101 }
 102
 103 InvalidationLogger* InvalidationServiceAndroid::GetInvalidationLogger() {
 104   return &logger_;
 105 }
 106
 107 void InvalidationServiceAndroid::RequestDetailedStatus(
 108     base::Callback<void(const base::DictionaryValue&)> return_callback) const {
 109 }
 110
 111 IdentityProvider* InvalidationServiceAndroid::GetIdentityProvider() {
 112   return NULL;
 113 }
 114
 115 void InvalidationServiceAndroid::TriggerStateChangeForTest(
 116     syncer::InvalidatorState state) {
 117   DCHECK(CalledOnValidThread());
 118   invalidator_state_ = state;
 119   invalidator_registrar_.UpdateInvalidatorState(invalidator_state_);
 120 }
 121
 122 void InvalidationServiceAndroid::Invalidate(JNIEnv* env,
 123                                             jobject obj,
 124                                             jint object_source,
 125                                             jstring java_object_id,
 126                                             jlong version,
 127                                             jstring java_payload) {
 128   syncer::ObjectIdInvalidationMap object_invalidation_map;
 129   if (!java_object_id) {
 130     syncer::ObjectIdSet sync_ids;
 131     if (object_source == 0) {
 132       sync_ids = invalidator_registrar_.GetAllRegisteredIds();
 133     } else {
 134       for (const auto& id : invalidator_registrar_.GetAllRegisteredIds()) {
 135         if (id.source() == object_source)
 136           sync_ids.insert(id);
 137       }
 138     }
 139     object_invalidation_map =
 140         syncer::ObjectIdInvalidationMap::InvalidateAll(sync_ids);
 141   } else {
 142     invalidation::ObjectId object_id(
 143         object_source, ConvertJavaStringToUTF8(env, java_object_id));
 144     syncer::ObjectIdInvalidationMap object_invalidation_map;
 145
 146     if (version == ipc::invalidation::Constants::UNKNOWN) {
 147       object_invalidation_map.Insert(
 148           syncer::Invalidation::InitUnknownVersion(object_id));
 149     } else {
 150       ObjectIdVersionMap::iterator it =
 151           max_invalidation_versions_.find(object_id);
 152       if ((it != max_invalidation_versions_.end()) && (version <= it->second)) {
 153         DVLOG(1) << "Dropping redundant invalidation with version " << version;
 154         return;
 155       }
 156       max_invalidation_versions_[object_id] = version;
 157       object_invalidation_map.Insert(syncer::Invalidation::Init(
 158           object_id, version, ConvertJavaStringToUTF8(env, java_payload)));
 159     }
 160   }
 161
 162   invalidator_registrar_.DispatchInvalidationsToHandlers(
 163       object_invalidation_map);
 164   logger_.OnInvalidation(object_invalidation_map);
 165 }
 166
 167 // static
 168 bool InvalidationServiceAndroid::RegisterJni(JNIEnv* env) {
 169   return RegisterNativesImpl(env);
 170 }
 171
 172 }  // namespace invalidation