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#include <unicode/putil.h>
#include <string>
#include <vector>
#include <android/graphics/jni_runtime.h>
#include <sys/stat.h>
#include <unicode/putil.h>
#include <unicode/udata.h>
#include "core_jni_helpers.h"
#include "jni.h"
#include "unicode/locid.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#endif
static JavaVM* javaVM;
extern int register_libcore_util_NativeAllocationRegistry(JNIEnv* env);
extern int register_android_media_ImageReader(JNIEnv* env);
namespace android {
extern int register_android_animation_PropertyValuesHolder(JNIEnv* env);
#ifndef _WIN32
extern int register_android_database_CursorWindow(JNIEnv* env);
extern int register_android_database_SQLiteConnection(JNIEnv* env);
#endif
extern int register_android_view_Surface(JNIEnv* env);
extern int register_com_android_internal_util_VirtualRefBasePtr(JNIEnv* env);
#define REG_JNI(name) \
{ name }
struct RegJNIRec {
int (*mProc)(JNIEnv*);
};
static const RegJNIRec sqliteJNI[] = {
#ifndef _WIN32
REG_JNI(register_android_database_CursorWindow),
REG_JNI(register_android_database_SQLiteConnection),
#endif
};
static const RegJNIRec graphicsJNI[] = {
REG_JNI(register_android_animation_PropertyValuesHolder),
REG_JNI(register_android_media_ImageReader),
REG_JNI(register_android_view_Surface),
REG_JNI(register_com_android_internal_util_VirtualRefBasePtr),
REG_JNI(register_libcore_util_NativeAllocationRegistry),
};
JNIEnv* AndroidRuntime::getJNIEnv() {
JNIEnv* env;
if (javaVM->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK) return nullptr;
return env;
}
JavaVM* AndroidRuntime::getJavaVM() {
return javaVM;
}
int AndroidRuntime::registerNativeMethods(JNIEnv* env, const char* className,
const JNINativeMethod* gMethods, int numMethods) {
std::string fullClassName = std::string(className);
std::string classNameString = fullClassName.substr(fullClassName.find_last_of("/"));
// strip out inner class notation '$'
classNameString.erase(std::remove(classNameString.begin(), classNameString.end(), '$'),
classNameString.end());
std::string roboNativeBindingClass =
"org/robolectric/nativeruntime" + classNameString + "Natives";
jclass clazz = FindClassOrDie(env, roboNativeBindingClass.c_str());
int res = env->RegisterNatives(clazz, gMethods, numMethods);
LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods.");
return res;
}
static int register_jni_procs(const RegJNIRec array[], size_t count, JNIEnv* env) {
for (size_t i = 0; i < count; i++) {
if (array[i].mProc(env) < 0) {
return -1;
}
}
return 0;
}
} // namespace android
using namespace android;
int fileExists(const char* filename) {
struct stat buffer;
return (stat(filename, &buffer) == 0);
}
static void* mmapFile(const char* dataFilePath) {
#ifdef _WIN32
// Windows needs file path in wide chars to handle unicode file paths
int size = MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, NULL, 0);
std::vector<wchar_t> wideDataFilePath(size);
MultiByteToWideChar(CP_UTF8, 0, dataFilePath, -1, wideDataFilePath.data(), size);
HANDLE file =
CreateFileW(wideDataFilePath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, nullptr);
if ((HANDLE)INVALID_HANDLE_VALUE == file) {
return nullptr;
}
struct CloseHandleWrapper {
void operator()(HANDLE h) { CloseHandle(h); }
};
std::unique_ptr<void, CloseHandleWrapper> mmapHandle(
CreateFileMapping(file, nullptr, PAGE_READONLY, 0, 0, nullptr));
if (!mmapHandle) {
return nullptr;
}
return MapViewOfFile(mmapHandle.get(), FILE_MAP_READ, 0, 0, 0);
#else
int fd = open(dataFilePath, O_RDONLY);
if (fd == -1) {
return nullptr;
}
struct stat sb;
if (fstat(fd, &sb) == -1) {
close(fd);
return nullptr;
}
void* addr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (addr == MAP_FAILED) {
close(fd);
return nullptr;
}
close(fd);
return addr;
#endif
}
static bool init_icu(const char* dataPath, const char* defaultLocaleLanguageTag) {
void* addr = mmapFile(dataPath);
UErrorCode err = U_ZERO_ERROR;
udata_setCommonData(addr, &err);
if (err != U_ZERO_ERROR) {
return false;
}
if (defaultLocaleLanguageTag != nullptr && defaultLocaleLanguageTag[0] != '\0') {
UErrorCode status = U_ZERO_ERROR;
icu::Locale locale = icu::Locale::forLanguageTag(defaultLocaleLanguageTag, status);
if (U_SUCCESS(status)) {
icu::Locale::setDefault(locale, status);
}
if (U_FAILURE(status)) {
fprintf(stderr, "Failed to set the ICU default locale to '%s' (error code %d)\n",
defaultLocaleLanguageTag, status);
}
}
return true;
}
JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void*) {
javaVM = vm;
JNIEnv* env = nullptr;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
return JNI_ERR;
}
if (register_jni_procs(sqliteJNI, NELEM(sqliteJNI), env) < 0) {
return JNI_ERR;
}
jclass runtimeEnvironment = FindClassOrDie(env, "org/robolectric/RuntimeEnvironment");
jmethodID getApiLevelMethod =
GetStaticMethodIDOrDie(env, runtimeEnvironment, "getApiLevel", "()I");
jint apiLevel = (jint)env->CallStaticIntMethod(runtimeEnvironment, getApiLevelMethod);
// Native graphics currently supports SDK 26 and above
if (apiLevel >= 26) {
init_android_graphics();
if (register_android_graphics_classes(env) < 0) {
return JNI_ERR;
}
if (register_jni_procs(graphicsJNI, NELEM(graphicsJNI), env) < 0) {
return JNI_ERR;
}
}
// Configuration is stored as java System properties.
// Get a reference to System.getProperty
jclass system = FindClassOrDie(env, "java/lang/System");
jmethodID getPropertyMethod =
GetStaticMethodIDOrDie(env, system, "getProperty",
"(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
// Get the path to the icu dat file
auto stringPath = (jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF("icu.data.path"),
env->NewStringUTF(""));
const char* icuPath = env->GetStringUTFChars(stringPath, 0);
if (!fileExists(icuPath)) {
fprintf(stderr, "Invalid ICU dat file path '%s'\n", icuPath);
return JNI_ERR;
}
// Get the default language tag
auto stringLanguageTag =
(jstring)env->CallStaticObjectMethod(system, getPropertyMethod,
env->NewStringUTF("icu.locale.default"),
env->NewStringUTF(""));
const char* languageTag = env->GetStringUTFChars(stringLanguageTag, 0);
bool icuInitialized = init_icu(icuPath, languageTag);
if (!icuInitialized) {
fprintf(stderr, "Failed to initialize ICU\n");
return JNI_ERR;
}
env->ReleaseStringUTFChars(stringPath, icuPath);
env->ReleaseStringUTFChars(stringLanguageTag, languageTag);
return JNI_VERSION_1_6;
}
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