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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::SstFileReader methods
// from Java side.
#include <jni.h>
#include <string>
#include "include/org_rocksdb_SstFileReader.h"
#include "rocksdb/comparator.h"
#include "rocksdb/env.h"
#include "rocksdb/options.h"
#include "rocksdb/sst_file_reader.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_SstFileReader
* Method: newSstFileReader
* Signature: (J)J
*/
jlong Java_org_rocksdb_SstFileReader_newSstFileReader(JNIEnv * /*env*/,
jclass /*jcls*/,
jlong joptions) {
auto *options =
reinterpret_cast<const ROCKSDB_NAMESPACE::Options *>(joptions);
ROCKSDB_NAMESPACE::SstFileReader *sst_file_reader =
new ROCKSDB_NAMESPACE::SstFileReader(*options);
return reinterpret_cast<jlong>(sst_file_reader);
}
/*
* Class: org_rocksdb_SstFileReader
* Method: open
* Signature: (JLjava/lang/String;)V
*/
void Java_org_rocksdb_SstFileReader_open(JNIEnv *env, jobject /*jobj*/,
jlong jhandle, jstring jfile_path) {
const char *file_path = env->GetStringUTFChars(jfile_path, nullptr);
if (file_path == nullptr) {
// exception thrown: OutOfMemoryError
return;
}
ROCKSDB_NAMESPACE::Status s =
reinterpret_cast<ROCKSDB_NAMESPACE::SstFileReader *>(jhandle)->Open(
file_path);
env->ReleaseStringUTFChars(jfile_path, file_path);
if (!s.ok()) {
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_SstFileReader
* Method: newIterator
* Signature: (JJ)J
*/
jlong Java_org_rocksdb_SstFileReader_newIterator(JNIEnv * /*env*/,
jobject /*jobj*/,
jlong jhandle,
jlong jread_options_handle) {
auto *sst_file_reader =
reinterpret_cast<ROCKSDB_NAMESPACE::SstFileReader *>(jhandle);
auto *read_options =
reinterpret_cast<ROCKSDB_NAMESPACE::ReadOptions *>(jread_options_handle);
return reinterpret_cast<jlong>(sst_file_reader->NewIterator(*read_options));
}
/*
* Class: org_rocksdb_SstFileReader
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_SstFileReader_disposeInternal(JNIEnv * /*env*/,
jobject /*jobj*/,
jlong jhandle) {
delete reinterpret_cast<ROCKSDB_NAMESPACE::SstFileReader *>(jhandle);
}
/*
* Class: org_rocksdb_SstFileReader
* Method: verifyChecksum
* Signature: (J)V
*/
void Java_org_rocksdb_SstFileReader_verifyChecksum(JNIEnv *env,
jobject /*jobj*/,
jlong jhandle) {
auto *sst_file_reader =
reinterpret_cast<ROCKSDB_NAMESPACE::SstFileReader *>(jhandle);
auto s = sst_file_reader->VerifyChecksum();
if (!s.ok()) {
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_SstFileReader
* Method: getTableProperties
* Signature: (J)J
*/
jobject Java_org_rocksdb_SstFileReader_getTableProperties(JNIEnv *env,
jobject /*jobj*/,
jlong jhandle) {
auto *sst_file_reader =
reinterpret_cast<ROCKSDB_NAMESPACE::SstFileReader *>(jhandle);
std::shared_ptr<const ROCKSDB_NAMESPACE::TableProperties> tp =
sst_file_reader->GetTableProperties();
jobject jtable_properties =
ROCKSDB_NAMESPACE::TablePropertiesJni::fromCppTableProperties(
env, *(tp.get()));
return jtable_properties;
}
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