| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // JNI wrapper for SessionHandler. |
| |
| #include <jni.h> |
| |
| #include "base/android_jni_proxy.h" |
| #include "base/android_util.h" |
| #include "base/scheduler.h" |
| #include "base/scoped_ptr.h" |
| #include "base/singleton.h" |
| #include "base/system_util.h" |
| #include "base/version.h" |
| #include "engine/engine_factory.h" |
| #include "session/commands.pb.h" |
| #include "session/session_handler.h" |
| #include "session/session_usage_observer.h" |
| #include "usage_stats/usage_stats_uploader.h" |
| |
| #include "data_manager/oss/oss_data_manager.h" |
| typedef mozc::oss::OssDataManager DataManagerType; |
| |
| namespace mozc { |
| namespace jni { |
| namespace { |
| jobject g_connection_data_buffer; |
| jobject g_dictionary_buffer; |
| |
| // Adapter class to make a SessionHandlerInterface (held by this class) |
| // singleton. |
| // Must be accessed via mozc::Singleton<SessionHandlerSingletonAdapter>. |
| class SessionHandlerSingletonAdapter { |
| public: |
| SessionHandlerSingletonAdapter() |
| : engine_(mozc::EngineFactory::Create()), |
| session_handler_(new mozc::SessionHandler(engine_.get())) {} |
| ~SessionHandlerSingletonAdapter() {} |
| |
| SessionHandlerInterface *getHandler() { |
| return session_handler_.get(); |
| } |
| |
| private: |
| // Must be defined earlier than session_handler_, which depends on this. |
| scoped_ptr<EngineInterface> engine_; |
| scoped_ptr<SessionHandlerInterface> session_handler_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SessionHandlerSingletonAdapter); |
| }; |
| |
| void Initialize( |
| JavaVM *vm, |
| const char *user_profile_directory, |
| void *dictionary_address, int dictionary_size, |
| void *connection_data_address, int connection_data_size) { |
| // First of all, set the user profile directory. |
| SystemUtil::SetUserProfileDirectory(user_profile_directory); |
| |
| #ifdef MOZC_ENABLE_HTTP_CLIENT |
| // Initialize Java native callback proxy. |
| JavaHttpClientProxy::SetJavaVM(vm); |
| #endif // MOZC_ENABLE_HTTP_CLIENT |
| |
| // Initialize dictionary data. |
| DataManagerType::SetDictionaryData(dictionary_address, dictionary_size); |
| DataManagerType::SetConnectionData(connection_data_address, |
| connection_data_size); |
| |
| mozc::Singleton<SessionHandlerSingletonAdapter>::get()->getHandler() |
| ->AddObserver(Singleton<session::SessionUsageObserver>::get()); |
| |
| // Start usage stats timer. |
| using usage_stats::UsageStatsUploader; |
| mozc::Scheduler::AddJob(Scheduler::JobSetting( |
| "UsageStatsTimer", |
| UsageStatsUploader::kDefaultScheduleInterval, |
| UsageStatsUploader::kDefaultScheduleMaxInterval, |
| UsageStatsUploader::kDefaultSchedulerDelay, |
| UsageStatsUploader::kDefaultSchedulerRandomDelay, |
| &UsageStatsUploader::Send, |
| NULL)); |
| } |
| |
| // Concrete implementation for MozcJni.evalCommand |
| jbyteArray JNICALL evalCommand(JNIEnv *env, |
| jclass clazz, |
| jbyteArray in_bytes_array) { |
| jboolean is_copy = false; |
| jbyte *in_bytes = env->GetByteArrayElements(in_bytes_array, &is_copy); |
| const jsize in_size = env->GetArrayLength(in_bytes_array); |
| mozc::commands::Command command; |
| command.ParseFromArray(in_bytes, in_size); |
| mozc::Singleton<SessionHandlerSingletonAdapter>::get()->getHandler() |
| ->EvalCommand(&command); |
| |
| // Use JNI_ABORT because in_bytes is read only. |
| env->ReleaseByteArrayElements(in_bytes_array, in_bytes, JNI_ABORT); |
| |
| const int out_size = command.ByteSize(); |
| jbyteArray out_bytes_array = env->NewByteArray(out_size); |
| jbyte *out_bytes = env->GetByteArrayElements(out_bytes_array, &is_copy); |
| command.SerializeToArray(out_bytes, out_size); |
| |
| // Use 0 to copy out_bytes to out_bytes_array. |
| env->ReleaseByteArrayElements(out_bytes_array, out_bytes, 0); |
| |
| return out_bytes_array; |
| } |
| |
| void JNICALL onPostLoad(JNIEnv *env, |
| jclass clazz, |
| jstring user_profile_directory_path, |
| jobject dictionary_buffer, |
| jobject connection_data_buffer) { |
| // Keep the global references of the buffers. |
| g_dictionary_buffer = env->NewGlobalRef(dictionary_buffer); |
| g_connection_data_buffer = env->NewGlobalRef(connection_data_buffer); |
| |
| jboolean is_copy = JNI_FALSE; |
| const char *utf8_user_profile_directory_path = |
| env->GetStringUTFChars(user_profile_directory_path, &is_copy); |
| |
| JavaVM *vm = NULL; |
| env->GetJavaVM(&vm); |
| |
| Initialize( |
| vm, utf8_user_profile_directory_path, |
| env->GetDirectBufferAddress(dictionary_buffer), |
| env->GetDirectBufferCapacity(dictionary_buffer), |
| env->GetDirectBufferAddress(connection_data_buffer), |
| env->GetDirectBufferCapacity(connection_data_buffer)); |
| if (is_copy) { |
| env->ReleaseStringUTFChars(user_profile_directory_path, |
| utf8_user_profile_directory_path); |
| } |
| } |
| |
| jstring JNICALL getVersion(JNIEnv *env) { |
| return env->NewStringUTF(Version::GetMozcVersion().c_str()); |
| } |
| |
| } // namespace |
| } // namespace jni |
| } // namespace mozc |
| |
| extern "C" { |
| JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved) { |
| JNIEnv *env = mozc::AndroidUtil::GetEnv(vm); |
| if (!env) { |
| // Fatal error. No way to recover. |
| return JNI_EVERSION; |
| } |
| const JNINativeMethod methods[] = { |
| {"evalCommand", |
| "([B)[B", |
| reinterpret_cast<void*>(&mozc::jni::evalCommand)}, |
| {"onPostLoad", |
| "(Ljava/lang/String;Ljava/nio/Buffer;Ljava/nio/Buffer;)V", |
| reinterpret_cast<void*>(&mozc::jni::onPostLoad)}, |
| {"getVersion", |
| "()Ljava/lang/String;", |
| reinterpret_cast<void*>(&mozc::jni::getVersion)}, |
| }; |
| jclass clazz = env->FindClass( |
| "org/mozc/android/inputmethod/japanese/session/MozcJNI"); |
| if (env->RegisterNatives(clazz, methods, arraysize(methods))) { |
| // Fatal error. No way to recover. |
| return JNI_EVERSION; |
| } |
| |
| mozc::Logging::InitLogStream("libmozc.so"); |
| return JNI_VERSION_1_6; |
| } |
| |
| JNIEXPORT void JNICALL JNI_OnUnload(JavaVM *vm, void *reserved) { |
| #ifdef MOZC_ENABLE_HTTP_CLIENT |
| mozc::jni::JavaHttpClientProxy::SetJavaVM(NULL); |
| #endif // MOZC_ENABLE_HTTP_CLIENT |
| |
| // Delete global references. |
| JNIEnv *env = mozc::AndroidUtil::GetEnv(vm); |
| if (env) { |
| env->DeleteGlobalRef(mozc::jni::g_connection_data_buffer); |
| env->DeleteGlobalRef(mozc::jni::g_dictionary_buffer); |
| } |
| } |
| } // extern "C" |