TJJavaVMInitializer::TJJavaVMInitializer(TJJNIVersion prefferedVersion, const TJStringArray& options) :
mOptions(options),
mVersion(prefferedVersion)
{
std::string jreFolderPath = GetJavaHomePath();
if (jreFolderPath.empty())
throw std::runtime_error("Java home path not found");
std::string jvmFullPath(jreFolderPath + "/jre/lib/amd64/server/libjvm.so");
bool libraryLoaded = false;
if (prefferedVersion == kJniChooseLatest)
{
int versionToCreate = kJniVersionLast;
for (; (versionToCreate >= kJniVersionFirst) && !libraryLoaded; --versionToCreate)
{
JNIEnv* jniEnv = TJCreateJavaVm(jvmFullPath, static_cast<TJJNIVersion>(versionToCreate), options);
libraryLoaded = (jniEnv != nullptr);
}
mVersion = static_cast<TJJNIVersion>(versionToCreate);
}
else
{
// by default create jni version 1_2
JNIEnv* jniEnv = TJCreateJavaVm(jvmFullPath, prefferedVersion, options);
libraryLoaded = (jniEnv != nullptr);
}
if (!libraryLoaded)
throw std::runtime_error("Failed to load JVM");
}
TJJavaVMInitializer::TJJavaVMInitializer(TJJNIVersion prefferedVersion, const TJStringArray& options) :
mOptions(options),
mVersion(prefferedVersion)
{
std::string jreFolderPath = GetJavaHomePathFromRegistry();
if (jreFolderPath.empty())
throw std::runtime_error("Java home path not found");
const char* const sClientPath = "\\jre\\bin\\client\\jvm.dll";
const char* const sServerPath = "\\jre\\bin\\server\\jvm.dll";
std::string jvmFullPath(jreFolderPath);
jvmFullPath += sClientPath;
if (!PathFileExists(jvmFullPath.c_str()))
{
jvmFullPath = jreFolderPath + sServerPath;
}
bool libraryLoaded = false;
if (prefferedVersion == kJniChooseLatest)
{
int versionToCreate = kJniVersionLast;
for (; (versionToCreate >= kJniVersionFirst) && !libraryLoaded; --versionToCreate)
{
JNIEnv* jniEnv = TJCreateJavaVm(jvmFullPath, static_cast<TJJNIVersion>(versionToCreate), options);
libraryLoaded = (jniEnv != nullptr);
}
mVersion = static_cast<TJJNIVersion>(versionToCreate);
}
else
{
// by default create jni version 1_2
JNIEnv* jniEnv = TJCreateJavaVm(jvmFullPath, prefferedVersion, options);
libraryLoaded = (jniEnv != nullptr);
}
if (!libraryLoaded)
throw std::runtime_error("Failed to load jvm.dll");
}
