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rocksdb/java/rocksjni/sst_file_writerjni.cc

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// This file implements the "bridge" between Java and C++ and enables
// calling c++ rocksdb::BackupableDB and rocksdb::BackupableDBOptions methods
// from Java side.
#include <jni.h>
#include <string>
#include "include/org_rocksdb_SstFileWriter.h"
#include "rocksdb/comparator.h"
#include "rocksdb/env.h"
#include "rocksdb/options.h"
#include "rocksdb/sst_file_writer.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_SstFileWriter
* Method: newSstFileWriter
* Signature: (JJJ)J
*/
jlong Java_org_rocksdb_SstFileWriter_newSstFileWriter(JNIEnv *env, jclass jcls,
jlong jenvoptions,
jlong joptions,
jlong jcomparator) {
auto *env_options =
reinterpret_cast<const rocksdb::EnvOptions *>(jenvoptions);
auto *options = reinterpret_cast<const rocksdb::Options *>(joptions);
auto *comparator = reinterpret_cast<const rocksdb::Comparator *>(jcomparator);
rocksdb::SstFileWriter *sst_file_writer =
new rocksdb::SstFileWriter(*env_options, *options, comparator);
return reinterpret_cast<jlong>(sst_file_writer);
}
/*
* Class: org_rocksdb_SstFileWriter
* Method: open
* Signature: (JLjava/lang/String;)V
*/
void Java_org_rocksdb_SstFileWriter_open(JNIEnv *env, jobject jobj,
jlong jhandle, jstring jfile_path) {
const char *file_path = env->GetStringUTFChars(jfile_path, NULL);
rocksdb::Status s =
reinterpret_cast<rocksdb::SstFileWriter *>(jhandle)->Open(file_path);
env->ReleaseStringUTFChars(jfile_path, file_path);
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_SstFileWriter
* Method: add
* Signature: (JJJ)V
*/
void Java_org_rocksdb_SstFileWriter_add(JNIEnv *env, jobject jobj,
jlong jhandle, jlong jkey_handle,
jlong jvalue_handle) {
auto *key_slice = reinterpret_cast<rocksdb::Slice *>(jkey_handle);
auto *value_slice = reinterpret_cast<rocksdb::Slice *>(jvalue_handle);
rocksdb::Status s = reinterpret_cast<rocksdb::SstFileWriter *>(jhandle)->Add(
*key_slice, *value_slice);
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_SstFileWriter
* Method: finish
* Signature: (J)V
*/
void Java_org_rocksdb_SstFileWriter_finish(JNIEnv *env, jobject jobj,
jlong jhandle) {
rocksdb::Status s =
reinterpret_cast<rocksdb::SstFileWriter *>(jhandle)->Finish();
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_SstFileWriter
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_SstFileWriter_disposeInternal(JNIEnv *env, jobject jobj,
jlong jhandle) {
delete reinterpret_cast<rocksdb::SstFileWriter *>(jhandle);
}