MetaLogEntityRange.h

Go to the documentation of this file.

/*
 * Copyright (C) 2007-2015 Hypertable, Inc.
 *
 * This file is part of Hypertable.
 *
 * Hypertable is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; version 3 of the
 * License, or any later version.
 *
 * Hypertable is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#ifndef Hypertable_RangeServer_MetaLogEntityRange_h
#define Hypertable_RangeServer_MetaLogEntityRange_h

#include <Hypertable/RangeServer/MetaLogEntityTypes.h>

#include <Hypertable/Lib/MetaLogEntity.h>
#include <Hypertable/Lib/RangeSpec.h>
#include <Hypertable/Lib/RangeState.h>
#include <Hypertable/Lib/TableIdentifier.h>

namespace Hypertable {


  class MetaLogEntityRange : public MetaLog::Entity {
  public:

    MetaLogEntityRange(const MetaLog::EntityHeader &header_);

    MetaLogEntityRange(const TableIdentifier &table, const RangeSpec &spec,
                       const RangeState &state, bool needs_compaction);

    virtual ~MetaLogEntityRange() { }

    void get_table_identifier(TableIdentifier &table);

    const char *get_table_id();

    void set_table_generation(uint32_t generation);

    void get_range_spec(RangeSpecManaged &spec);

    void get_range_state(RangeStateManaged &state);

    int get_state();

    void set_state(uint8_t state, const String &source);

    void set_state_bits(uint8_t bits);

    void clear_state_bits(uint8_t bits);

    void clear_state();

    uint64_t get_soft_limit();

    void set_soft_limit(uint64_t soft_limit);

    String get_split_row();

    void set_split_row(const String &row);

    String get_transfer_log();
    
    void set_transfer_log(const String &path);

    String get_start_row();

    void set_start_row(const String &row);

    String get_end_row();

    void set_end_row(const String &row);

    void get_boundary_rows(String &start, String &end);

    String get_old_boundary_row();

    void set_old_boundary_row(const String &row);

    bool get_needs_compaction();
    
    void set_needs_compaction(bool val);

    bool get_load_acknowledged();

    void set_load_acknowledged(bool val);

    String get_source();

    void decode(const uint8_t **bufp, size_t *remainp,
                uint16_t definition_version) override;

    const String name() override;

    void display(std::ostream &os) override;

    static bool encountered_upgrade;

  private:

    uint8_t encoding_version() const override;

    size_t encoded_length_internal() const override;

    void encode_internal(uint8_t **bufp) const override;

    void decode_internal(uint8_t version, const uint8_t **bufp,
                         size_t *remainp) override;

    void decode_old(const uint8_t **bufp, size_t *remainp);

    TableIdentifierManaged m_table;

    RangeSpecManaged m_spec;

    RangeStateManaged m_state;

    bool m_needs_compaction;

    bool m_load_acknowledged;

  };

  typedef std::shared_ptr<MetaLogEntityRange> MetaLogEntityRangePtr;


} // namespace Hypertable

#endif // Hypertable_RangeServer_MetaLogEntityRange_h