1 /* 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 12 #define WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 13 14 #include <jni.h> 15 #include <string> 16 17 #include "webrtc/modules/utility/include/jvm_android.h" 18 19 namespace webrtc { 20 21 // Utility class used to query the Java class (org/webrtc/voiceengine/BuildInfo) 22 // for device and Android build information. 23 // The calling thread is attached to the JVM at construction if needed and a 24 // valid Java environment object is also created. 25 // All Get methods must be called on the creating thread. If not, the code will 26 // hit RTC_DCHECKs when calling JNIEnvironment::JavaToStdString(). 27 class BuildInfo { 28 public: 29 BuildInfo(); ~BuildInfo()30 ~BuildInfo() {} 31 32 // End-user-visible name for the end product (e.g. "Nexus 6"). 33 std::string GetDeviceModel(); 34 // Consumer-visible brand (e.g. "google"). 35 std::string GetBrand(); 36 // Manufacturer of the product/hardware (e.g. "motorola"). 37 std::string GetDeviceManufacturer(); 38 // Android build ID (e.g. LMY47D). 39 std::string GetAndroidBuildId(); 40 // The type of build (e.g. "user" or "eng"). 41 std::string GetBuildType(); 42 // The user-visible version string (e.g. "5.1"). 43 std::string GetBuildRelease(); 44 // The user-visible SDK version of the framework (e.g. 21). 45 std::string GetSdkVersion(); 46 47 private: 48 // Helper method which calls a static getter method with |name| and returns 49 // a string from Java. 50 std::string GetStringFromJava(const char* name); 51 52 // Ensures that this class can access a valid JNI interface pointer even 53 // if the creating thread was not attached to the JVM. 54 AttachCurrentThreadIfNeeded attach_thread_if_needed_; 55 56 // Provides access to the JNIEnv interface pointer and the JavaToStdString() 57 // method which is used to translate Java strings to std strings. 58 rtc::scoped_ptr<JNIEnvironment> j_environment_; 59 60 // Holds the jclass object and provides access to CallStaticObjectMethod(). 61 // Used by GetStringFromJava() during construction only. 62 JavaClass j_build_info_; 63 }; 64 65 } // namespace webrtc 66 67 #endif // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_BUILD_INFO_H_ 68