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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// This file implements the "bridge" between Java and C++ and enables
// calling c++ rocksdb::ThreadStatus methods from Java side.
#include <jni.h>
#include "portal.h"
#include "include/org_rocksdb_ThreadStatus.h"
#include "rocksdb/thread_status.h"
/*
* Class: org_rocksdb_ThreadStatus
* Method: getThreadTypeName
* Signature: (B)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_getThreadTypeName(
JNIEnv* env, jclass, jbyte jthread_type_value) {
auto name = rocksdb::ThreadStatus::GetThreadTypeName(
rocksdb::ThreadTypeJni::toCppThreadType(jthread_type_value));
return rocksdb::JniUtil::toJavaString(env, &name, true);
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: getOperationName
* Signature: (B)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_getOperationName(
JNIEnv* env, jclass, jbyte joperation_type_value) {
auto name = rocksdb::ThreadStatus::GetOperationName(
rocksdb::OperationTypeJni::toCppOperationType(joperation_type_value));
return rocksdb::JniUtil::toJavaString(env, &name, true);
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: microsToStringNative
* Signature: (J)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_microsToStringNative(
JNIEnv* env, jclass, jlong jmicros) {
auto str =
rocksdb::ThreadStatus::MicrosToString(static_cast<uint64_t>(jmicros));
return rocksdb::JniUtil::toJavaString(env, &str, true);
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: getOperationStageName
* Signature: (B)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_getOperationStageName(
JNIEnv* env, jclass, jbyte joperation_stage_value) {
auto name = rocksdb::ThreadStatus::GetOperationStageName(
rocksdb::OperationStageJni::toCppOperationStage(joperation_stage_value));
return rocksdb::JniUtil::toJavaString(env, &name, true);
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: getOperationPropertyName
* Signature: (BI)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_getOperationPropertyName(
JNIEnv* env, jclass, jbyte joperation_type_value, jint jindex) {
auto name = rocksdb::ThreadStatus::GetOperationPropertyName(
rocksdb::OperationTypeJni::toCppOperationType(joperation_type_value),
static_cast<int>(jindex));
return rocksdb::JniUtil::toJavaString(env, &name, true);
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: interpretOperationProperties
* Signature: (B[J)Ljava/util/Map;
*/
jobject Java_org_rocksdb_ThreadStatus_interpretOperationProperties(
JNIEnv* env, jclass, jbyte joperation_type_value,
jlongArray joperation_properties) {
//convert joperation_properties
const jsize len = env->GetArrayLength(joperation_properties);
const std::unique_ptr<uint64_t[]> op_properties(new uint64_t[len]);
jlong* jop = env->GetLongArrayElements(joperation_properties, nullptr);
if (jop == nullptr) {
// exception thrown: OutOfMemoryError
return nullptr;
}
for (jsize i = 0; i < len; i++) {
op_properties[i] = static_cast<uint64_t>(jop[i]);
}
env->ReleaseLongArrayElements(joperation_properties, jop, JNI_ABORT);
// call the function
auto result = rocksdb::ThreadStatus::InterpretOperationProperties(
rocksdb::OperationTypeJni::toCppOperationType(joperation_type_value),
op_properties.get());
jobject jresult = rocksdb::HashMapJni::fromCppMap(env, &result);
if (env->ExceptionCheck()) {
// exception occurred
return nullptr;
}
return jresult;
}
/*
* Class: org_rocksdb_ThreadStatus
* Method: getStateName
* Signature: (B)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ThreadStatus_getStateName(
JNIEnv* env, jclass, jbyte jstate_type_value) {
auto name = rocksdb::ThreadStatus::GetStateName(
rocksdb::StateTypeJni::toCppStateType(jstate_type_value));
return rocksdb::JniUtil::toJavaString(env, &name, true);
}
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