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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::WriteBatch methods testing from Java side.
#include "rocksdb/write_batch.h"
#include <memory>
#include "db/memtable.h"
#include "db/write_batch_internal.h"
#include "include/org_rocksdb_WriteBatch.h"
#include "include/org_rocksdb_WriteBatchTest.h"
#include "include/org_rocksdb_WriteBatchTestInternalHelper.h"
#include "include/org_rocksdb_WriteBatch_Handler.h"
#include "options/cf_options.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/memtablerep.h"
#include "rocksdb/status.h"
#include "rocksdb/write_buffer_manager.h"
#include "rocksjni/portal.h"
#include "test_util/testharness.h"
#include "util/string_util.h"
/*
* Class: org_rocksdb_WriteBatchTest
* Method: getContents
* Signature: (J)[B
*/
jbyteArray Java_org_rocksdb_WriteBatchTest_getContents(JNIEnv* env,
jclass /*jclazz*/,
jlong jwb_handle) {
auto* b = reinterpret_cast<ROCKSDB_NAMESPACE::WriteBatch*>(jwb_handle);
assert(b != nullptr);
// todo: Currently the following code is directly copied from
// db/write_bench_test.cc. It could be implemented in java once
// all the necessary components can be accessed via jni api.
ROCKSDB_NAMESPACE::InternalKeyComparator cmp(
ROCKSDB_NAMESPACE::BytewiseComparator());
auto factory = std::make_shared<ROCKSDB_NAMESPACE::SkipListFactory>();
ROCKSDB_NAMESPACE::Options options;
ROCKSDB_NAMESPACE::WriteBufferManager wb(options.db_write_buffer_size);
options.memtable_factory = factory;
ROCKSDB_NAMESPACE::MemTable* mem = new ROCKSDB_NAMESPACE::MemTable(
cmp, ROCKSDB_NAMESPACE::ImmutableOptions(options),
ROCKSDB_NAMESPACE::MutableCFOptions(options), &wb,
ROCKSDB_NAMESPACE::kMaxSequenceNumber, 0 /* column_family_id */);
mem->Ref();
std::string state;
ROCKSDB_NAMESPACE::ColumnFamilyMemTablesDefault cf_mems_default(mem);
ROCKSDB_NAMESPACE::Status s =
ROCKSDB_NAMESPACE::WriteBatchInternal::InsertInto(b, &cf_mems_default,
nullptr, nullptr);
unsigned int count = 0;
ROCKSDB_NAMESPACE::Arena arena;
ROCKSDB_NAMESPACE::ScopedArenaPtr<ROCKSDB_NAMESPACE::InternalIterator> iter(
mem->NewIterator(ROCKSDB_NAMESPACE::ReadOptions(),
/*seqno_to_time_mapping=*/nullptr, &arena,
/*prefix_extractor=*/nullptr, /*for_flush=*/false));
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
ROCKSDB_NAMESPACE::ParsedInternalKey ikey;
ikey.clear();
ROCKSDB_NAMESPACE::Status pik_status = ROCKSDB_NAMESPACE::ParseInternalKey(
iter->key(), &ikey, true /* log_err_key */);
pik_status.PermitUncheckedError();
assert(pik_status.ok());
switch (ikey.type) {
case ROCKSDB_NAMESPACE::kTypeValue:
state.append("Put(");
state.append(ikey.user_key.ToString());
state.append(", ");
state.append(iter->value().ToString());
state.append(")");
count++;
break;
case ROCKSDB_NAMESPACE::kTypeMerge:
state.append("Merge(");
state.append(ikey.user_key.ToString());
state.append(", ");
state.append(iter->value().ToString());
state.append(")");
count++;
break;
case ROCKSDB_NAMESPACE::kTypeDeletion:
state.append("Delete(");
state.append(ikey.user_key.ToString());
state.append(")");
count++;
break;
case ROCKSDB_NAMESPACE::kTypeSingleDeletion:
state.append("SingleDelete(");
state.append(ikey.user_key.ToString());
state.append(")");
count++;
break;
case ROCKSDB_NAMESPACE::kTypeRangeDeletion:
state.append("DeleteRange(");
state.append(ikey.user_key.ToString());
state.append(", ");
state.append(iter->value().ToString());
state.append(")");
count++;
break;
case ROCKSDB_NAMESPACE::kTypeLogData:
state.append("LogData(");
state.append(ikey.user_key.ToString());
state.append(")");
count++;
break;
default:
assert(false);
state.append("Err:Expected(");
state.append(std::to_string(ikey.type));
state.append(")");
count++;
break;
}
state.append("@");
state.append(std::to_string(ikey.sequence));
}
if (!s.ok()) {
state.append(s.ToString());
} else if (ROCKSDB_NAMESPACE::WriteBatchInternal::Count(b) != count) {
state.append("Err:CountMismatch(expected=");
state.append(
std::to_string(ROCKSDB_NAMESPACE::WriteBatchInternal::Count(b)));
state.append(", actual=");
state.append(std::to_string(count));
state.append(")");
}
delete mem->Unref();
jbyteArray jstate = env->NewByteArray(static_cast<jsize>(state.size()));
if (jstate == nullptr) {
// exception thrown: OutOfMemoryError
return nullptr;
}
env->SetByteArrayRegion(
jstate, 0, static_cast<jsize>(state.size()),
const_cast<jbyte*>(reinterpret_cast<const jbyte*>(state.c_str())));
if (env->ExceptionCheck()) {
// exception thrown: ArrayIndexOutOfBoundsException
env->DeleteLocalRef(jstate);
return nullptr;
}
return jstate;
}
/*
* Class: org_rocksdb_WriteBatchTestInternalHelper
* Method: setSequence
* Signature: (JJ)V
*/
void Java_org_rocksdb_WriteBatchTestInternalHelper_setSequence(
JNIEnv* /*env*/, jclass /*jclazz*/, jlong jwb_handle, jlong jsn) {
auto* wb = reinterpret_cast<ROCKSDB_NAMESPACE::WriteBatch*>(jwb_handle);
assert(wb != nullptr);
ROCKSDB_NAMESPACE::WriteBatchInternal::SetSequence(
wb, static_cast<ROCKSDB_NAMESPACE::SequenceNumber>(jsn));
}
/*
* Class: org_rocksdb_WriteBatchTestInternalHelper
* Method: sequence
* Signature: (J)J
*/
jlong Java_org_rocksdb_WriteBatchTestInternalHelper_sequence(JNIEnv* /*env*/,
jclass /*jclazz*/,
jlong jwb_handle) {
auto* wb = reinterpret_cast<ROCKSDB_NAMESPACE::WriteBatch*>(jwb_handle);
assert(wb != nullptr);
return static_cast<jlong>(
ROCKSDB_NAMESPACE::WriteBatchInternal::Sequence(wb));
}
/*
* Class: org_rocksdb_WriteBatchTestInternalHelper
* Method: append
* Signature: (JJ)V
*/
void Java_org_rocksdb_WriteBatchTestInternalHelper_append(JNIEnv* /*env*/,
jclass /*jclazz*/,
jlong jwb_handle_1,
jlong jwb_handle_2) {
auto* wb1 = reinterpret_cast<ROCKSDB_NAMESPACE::WriteBatch*>(jwb_handle_1);
assert(wb1 != nullptr);
auto* wb2 = reinterpret_cast<ROCKSDB_NAMESPACE::WriteBatch*>(jwb_handle_2);
assert(wb2 != nullptr);
ROCKSDB_NAMESPACE::WriteBatchInternal::Append(wb1, wb2);
}
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