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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_NAMESPACE::SstFileManager methods
// from Java side.
#include <jni.h>
#include <memory>
#include "include/org_rocksdb_SstFileManager.h"
#include "rocksdb/sst_file_manager.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_SstFileManager
* Method: newSstFileManager
* Signature: (JJJDJ)J
*/
jlong Java_org_rocksdb_SstFileManager_newSstFileManager(
JNIEnv* jnienv, jclass /*jcls*/, jlong jenv_handle, jlong jlogger_handle,
jlong jrate_bytes, jdouble jmax_trash_db_ratio,
jlong jmax_delete_chunk_bytes) {
auto* env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jenv_handle);
ROCKSDB_NAMESPACE::Status s;
ROCKSDB_NAMESPACE::SstFileManager* sst_file_manager = nullptr;
if (jlogger_handle != 0) {
auto* sptr_logger =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::Logger>*>(
jlogger_handle);
sst_file_manager = ROCKSDB_NAMESPACE::NewSstFileManager(
env, *sptr_logger, "", jrate_bytes, true, &s, jmax_trash_db_ratio,
jmax_delete_chunk_bytes);
} else {
sst_file_manager = ROCKSDB_NAMESPACE::NewSstFileManager(
env, nullptr, "", jrate_bytes, true, &s, jmax_trash_db_ratio,
jmax_delete_chunk_bytes);
}
if (!s.ok()) {
if (sst_file_manager != nullptr) {
delete sst_file_manager;
}
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(jnienv, s);
}
auto* sptr_sst_file_manager =
new std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>(sst_file_manager);
return reinterpret_cast<jlong>(sptr_sst_file_manager);
}
/*
* Class: org_rocksdb_SstFileManager
* Method: setMaxAllowedSpaceUsage
* Signature: (JJ)V
*/
void Java_org_rocksdb_SstFileManager_setMaxAllowedSpaceUsage(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle,
jlong jmax_allowed_space) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
sptr_sst_file_manager->get()->SetMaxAllowedSpaceUsage(jmax_allowed_space);
}
/*
* Class: org_rocksdb_SstFileManager
* Method: setCompactionBufferSize
* Signature: (JJ)V
*/
void Java_org_rocksdb_SstFileManager_setCompactionBufferSize(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle,
jlong jcompaction_buffer_size) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
sptr_sst_file_manager->get()->SetCompactionBufferSize(
jcompaction_buffer_size);
}
/*
* Class: org_rocksdb_SstFileManager
* Method: isMaxAllowedSpaceReached
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_SstFileManager_isMaxAllowedSpaceReached(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
return sptr_sst_file_manager->get()->IsMaxAllowedSpaceReached();
}
/*
* Class: org_rocksdb_SstFileManager
* Method: isMaxAllowedSpaceReachedIncludingCompactions
* Signature: (J)Z
*/
jboolean
Java_org_rocksdb_SstFileManager_isMaxAllowedSpaceReachedIncludingCompactions(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
return sptr_sst_file_manager->get()
->IsMaxAllowedSpaceReachedIncludingCompactions();
}
/*
* Class: org_rocksdb_SstFileManager
* Method: getTotalSize
* Signature: (J)J
*/
jlong Java_org_rocksdb_SstFileManager_getTotalSize(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
return sptr_sst_file_manager->get()->GetTotalSize();
}
/*
* Class: org_rocksdb_SstFileManager
* Method: getTrackedFiles
* Signature: (J)Ljava/util/Map;
*/
jobject Java_org_rocksdb_SstFileManager_getTrackedFiles(JNIEnv* env,
jobject /*jobj*/,
jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
auto tracked_files = sptr_sst_file_manager->get()->GetTrackedFiles();
// TODO(AR) could refactor to share code with
// ROCKSDB_NAMESPACE::HashMapJni::fromCppMap(env, tracked_files);
const jobject jtracked_files = ROCKSDB_NAMESPACE::HashMapJni::construct(
env, static_cast<uint32_t>(tracked_files.size()));
if (jtracked_files == nullptr) {
// exception occurred
return nullptr;
}
const ROCKSDB_NAMESPACE::HashMapJni::FnMapKV<const std::string,
const uint64_t, jobject, jobject>
fn_map_kv =
[env](const std::pair<const std::string, const uint64_t>& pair) {
const jstring jtracked_file_path =
env->NewStringUTF(pair.first.c_str());
if (jtracked_file_path == nullptr) {
// an error occurred
return std::unique_ptr<std::pair<jobject, jobject>>(nullptr);
}
const jobject jtracked_file_size =
ROCKSDB_NAMESPACE::LongJni::valueOf(env, pair.second);
if (jtracked_file_size == nullptr) {
// an error occurred
return std::unique_ptr<std::pair<jobject, jobject>>(nullptr);
}
return std::unique_ptr<std::pair<jobject, jobject>>(
new std::pair<jobject, jobject>(jtracked_file_path,
jtracked_file_size));
};
if (!ROCKSDB_NAMESPACE::HashMapJni::putAll(env, jtracked_files,
tracked_files.begin(),
tracked_files.end(), fn_map_kv)) {
// exception occcurred
return nullptr;
}
return jtracked_files;
}
/*
* Class: org_rocksdb_SstFileManager
* Method: getDeleteRateBytesPerSecond
* Signature: (J)J
*/
jlong Java_org_rocksdb_SstFileManager_getDeleteRateBytesPerSecond(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
return sptr_sst_file_manager->get()->GetDeleteRateBytesPerSecond();
}
/*
* Class: org_rocksdb_SstFileManager
* Method: setDeleteRateBytesPerSecond
* Signature: (JJ)V
*/
void Java_org_rocksdb_SstFileManager_setDeleteRateBytesPerSecond(
JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle, jlong jdelete_rate) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
sptr_sst_file_manager->get()->SetDeleteRateBytesPerSecond(jdelete_rate);
}
/*
* Class: org_rocksdb_SstFileManager
* Method: getMaxTrashDBRatio
* Signature: (J)D
*/
jdouble Java_org_rocksdb_SstFileManager_getMaxTrashDBRatio(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
return sptr_sst_file_manager->get()->GetMaxTrashDBRatio();
}
/*
* Class: org_rocksdb_SstFileManager
* Method: setMaxTrashDBRatio
* Signature: (JD)V
*/
void Java_org_rocksdb_SstFileManager_setMaxTrashDBRatio(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle,
jdouble jratio) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
sptr_sst_file_manager->get()->SetMaxTrashDBRatio(jratio);
}
/*
* Class: org_rocksdb_SstFileManager
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_SstFileManager_disposeInternal(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle) {
auto* sptr_sst_file_manager =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::SstFileManager>*>(
jhandle);
delete sptr_sst_file_manager;
}
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