YugabyteDB (2.13.1.0-b60, 21121d69985fbf76aa6958d8f04a9bfa936293b5)

//  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.

//

// The following only applies to changes made to this file as part of YugaByte development.

//

// Portions Copyright (c) YugaByte, Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except

// in compliance with the License.  You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software distributed under the License

// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express

// or implied.  See the License for the specific language governing permissions and limitations

// under the License.

//

#ifndef ROCKSDB_DB_DB_IMPL_READONLY_H

#define ROCKSDB_DB_DB_IMPL_READONLY_H

#pragma once

#ifndef ROCKSDB_LITE

#include "yb/rocksdb/db/db_impl.h"

#include <vector>

#include <string>

namespace rocksdb {

class DBImplReadOnly : public DBImpl {

 public:

  DBImplReadOnly(const DBOptions& options, const std::string& dbname);

  virtual ~DBImplReadOnly();

  // Implementations of the DB interface

  using DB::Get;

  virtual Status Get(const ReadOptions& options,

                     ColumnFamilyHandle* column_family, const Slice& key,

                     std::string* value) override;

  // TODO: Implement ReadOnly MultiGet?

  using DBImpl::NewIterator;

  virtual Iterator* NewIterator(const ReadOptions&,

                                ColumnFamilyHandle* column_family) override;

  virtual Status NewIterators(

      const ReadOptions& options,

      const std::vector<ColumnFamilyHandle*>& column_families,

      std::vector<Iterator*>* iterators) override;

  using DBImpl::Put;

  virtual Status Put(const WriteOptions& options,

                     ColumnFamilyHandle* column_family, const Slice& key,

                     const Slice& value) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::Merge;

  virtual Status Merge(const WriteOptions& options,

                       ColumnFamilyHandle* column_family, const Slice& key,

                       const Slice& value) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::Delete;

  virtual Status Delete(const WriteOptions& options,

                        ColumnFamilyHandle* column_family,

                        const Slice& key) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::SingleDelete;

  virtual Status SingleDelete(const WriteOptions& options,

                              ColumnFamilyHandle* column_family,

                              const Slice& key) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  virtual Status Write(const WriteOptions& options,

                       WriteBatch* updates) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::CompactRange;

  virtual Status CompactRange(const CompactRangeOptions& options,

                              ColumnFamilyHandle* column_family,

                              const Slice* begin, const Slice* end) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::CompactFiles;

  virtual Status CompactFiles(

      const CompactionOptions& compact_options,

      ColumnFamilyHandle* column_family,

      const std::vector<std::string>& input_file_names,

      const int output_level, const int output_path_id = -1) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

#ifndef ROCKSDB_LITE

  virtual Status DisableFileDeletions() override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  virtual Status EnableFileDeletions(bool force) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  virtual Status GetLiveFiles(std::vector<std::string>&,

                              uint64_t* manifest_file_size,

                              bool flush_memtable = true) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

#endif  // ROCKSDB_LITE

  using DBImpl::Flush;

  virtual Status Flush(const FlushOptions& options,

                       ColumnFamilyHandle* column_family) override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

  using DBImpl::SyncWAL;

  virtual Status SyncWAL() override {

    return STATUS(NotSupported, "Not supported operation in read only mode.");

  }

 private:

  friend class DB;

  // No copying allowed

  DBImplReadOnly(const DBImplReadOnly&);

  void operator=(const DBImplReadOnly&);

};

} // namespace rocksdb

#endif  // !ROCKSDB_LITE

#endif // ROCKSDB_DB_DB_IMPL_READONLY_H