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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::Checkpoint methods from Java side.
#include "rocksdb/utilities/checkpoint.h"
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include "include/org_rocksdb_Checkpoint.h"
#include "rocksdb/db.h"
#include "rocksjni/cplusplus_to_java_convert.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_Checkpoint
* Method: newCheckpoint
* Signature: (J)J
*/
jlong Java_org_rocksdb_Checkpoint_newCheckpoint(JNIEnv* /*env*/,
jclass /*jclazz*/,
jlong jdb_handle) {
auto* db = reinterpret_cast<ROCKSDB_NAMESPACE::DB*>(jdb_handle);
ROCKSDB_NAMESPACE::Checkpoint* checkpoint;
ROCKSDB_NAMESPACE::Checkpoint::Create(db, &checkpoint);
return GET_CPLUSPLUS_POINTER(checkpoint);
}
/*
* Class: org_rocksdb_Checkpoint
* Method: dispose
* Signature: (J)V
*/
void Java_org_rocksdb_Checkpoint_disposeInternalJni(JNIEnv* /*env*/,
jclass /*jobj*/,
jlong jhandle) {
auto* checkpoint = reinterpret_cast<ROCKSDB_NAMESPACE::Checkpoint*>(jhandle);
assert(checkpoint != nullptr);
delete checkpoint;
}
/*
* Class: org_rocksdb_Checkpoint
* Method: createCheckpoint
* Signature: (JLjava/lang/String;)V
*/
void Java_org_rocksdb_Checkpoint_createCheckpoint(JNIEnv* env, jclass /*jcls*/,
jlong jcheckpoint_handle,
jstring jcheckpoint_path) {
const char* checkpoint_path = env->GetStringUTFChars(jcheckpoint_path, 0);
if (checkpoint_path == nullptr) {
// exception thrown: OutOfMemoryError
return;
}
auto* checkpoint =
reinterpret_cast<ROCKSDB_NAMESPACE::Checkpoint*>(jcheckpoint_handle);
ROCKSDB_NAMESPACE::Status s = checkpoint->CreateCheckpoint(checkpoint_path);
env->ReleaseStringUTFChars(jcheckpoint_path, checkpoint_path);
if (!s.ok()) {
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_Checkpoint
* Method: exportColumnFamily
* Signature: (JJLjava/lang/String;)Lorg/rocksdb/ExportImportFilesMetaData;
*/
jlong Java_org_rocksdb_Checkpoint_exportColumnFamily(
JNIEnv* env, jobject /*jobj*/, jlong jcheckpoint_handle,
jlong jcolumn_family_handle, jstring jexport_path) {
const char* export_path = env->GetStringUTFChars(jexport_path, 0);
if (export_path == nullptr) {
// exception thrown: OutOfMemoryError
return 0;
}
auto* checkpoint =
reinterpret_cast<ROCKSDB_NAMESPACE::Checkpoint*>(jcheckpoint_handle);
auto* column_family_handle =
reinterpret_cast<ROCKSDB_NAMESPACE::ColumnFamilyHandle*>(
jcolumn_family_handle);
ROCKSDB_NAMESPACE::ExportImportFilesMetaData* metadata = nullptr;
ROCKSDB_NAMESPACE::Status s = checkpoint->ExportColumnFamily(
column_family_handle, export_path, &metadata);
env->ReleaseStringUTFChars(jexport_path, export_path);
if (!s.ok()) {
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
}
return GET_CPLUSPLUS_POINTER(metadata);
}
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