mirror of https://github.com/facebook/rocksdb.git
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// This file implements the "bridge" between Java and C++ and enables
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// calling c++ rocksdb::Checkpoint methods from Java side.
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#include <stdio.h>
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#include <stdlib.h>
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#include <jni.h>
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#include <string>
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#include "include/org_rocksdb_Checkpoint.h"
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#include "rocksjni/portal.h"
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#include "rocksdb/db.h"
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#include "rocksdb/utilities/checkpoint.h"
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/*
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* Class: org_rocksdb_Checkpoint
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* Method: newCheckpoint
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* Signature: (J)J
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*/
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jlong Java_org_rocksdb_Checkpoint_newCheckpoint(JNIEnv* env,
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jclass jclazz, jlong jdb_handle) {
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auto* db = reinterpret_cast<rocksdb::DB*>(jdb_handle);
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rocksdb::Checkpoint* checkpoint;
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rocksdb::Checkpoint::Create(db, &checkpoint);
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return reinterpret_cast<jlong>(checkpoint);
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}
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/*
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* Class: org_rocksdb_Checkpoint
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* Method: dispose
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* Signature: (J)V
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*/
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void Java_org_rocksdb_Checkpoint_disposeInternal(JNIEnv* env, jobject jobj,
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jlong jhandle) {
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auto* checkpoint = reinterpret_cast<rocksdb::Checkpoint*>(jhandle);
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assert(checkpoint != nullptr);
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delete checkpoint;
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}
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/*
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* Class: org_rocksdb_Checkpoint
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* Method: createCheckpoint
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* Signature: (JLjava/lang/String;)V
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*/
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void Java_org_rocksdb_Checkpoint_createCheckpoint(
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JNIEnv* env, jobject jobj, jlong jcheckpoint_handle,
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jstring jcheckpoint_path) {
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const char* checkpoint_path = env->GetStringUTFChars(
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jcheckpoint_path, 0);
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if(checkpoint_path == nullptr) {
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// exception thrown: OutOfMemoryError
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return;
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}
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auto* checkpoint = reinterpret_cast<rocksdb::Checkpoint*>(
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jcheckpoint_handle);
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rocksdb::Status s = checkpoint->CreateCheckpoint(
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checkpoint_path);
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env->ReleaseStringUTFChars(jcheckpoint_path, checkpoint_path);
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if (!s.ok()) {
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rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
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}
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}
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