// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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.

#pragma once

#include <butil/macros.h>

#include <string>

#include <vector>

#include "common/status.h"

#include "io/io_common.h"

#include "olap/compaction.h"

#include "olap/rowset/rowset.h"

#include "olap/tablet.h"

namespace doris {

// BaseCompaction is derived from Compaction.

// BaseCompaction will implements

//   1. its policy to pick rowsets

//   2. do compaction to produce new rowset.

class BaseCompaction : public Compaction {

public:

    BaseCompaction(const TabletSharedPtr& tablet);

    ~BaseCompaction() override;

    Status prepare_compact() override;

    Status execute_compact_impl() override;

protected:

    Status pick_rowsets_to_compact() override;

    std::string compaction_name() const override { return "base compaction"; }

    ReaderType compaction_type() const override { return ReaderType::READER_BASE_COMPACTION; }

private:

    // filter input rowset in some case:

    // 1. dup key without delete predicate

    void _filter_input_rowset();

    DISALLOW_COPY_AND_ASSIGN(BaseCompaction);

};

} // namespace doris