OperationAlterTable.h

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/* -*- c++ -*-
 * 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_Master_OperationAlterTable_h
#define Hypertable_Master_OperationAlterTable_h

#include <Hypertable/Master/Operation.h>

#include <Hypertable/Lib/Master/Request/Parameters/AlterTable.h>

#include <Common/StringExt.h>

namespace Hypertable {


  class OperationAlterTable : public Operation {
  public:

    OperationAlterTable(ContextPtr &context, const MetaLog::EntityHeader &header_);
    
    OperationAlterTable(ContextPtr &context, EventPtr &event);

    virtual ~OperationAlterTable() { }

    void execute() override;

    const String name() override;

    const String label() override;

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

    uint8_t encoding_version_state() const override;

    size_t encoded_length_state() const override;

    void encode_state(uint8_t **bufp) const override;

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

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

  private:

    bool get_schemas(SchemaPtr &original_schema, SchemaPtr &alter_schema);

    TableParts get_drop_index_parts(SchemaPtr &original_schema,
                                    SchemaPtr &alter_schema);

    TableParts get_create_index_parts(SchemaPtr &original_schema,
                                      SchemaPtr &alter_schema);

    Lib::Master::Request::Parameters::AlterTable m_params;

    String m_schema;

    String m_id;

    StringSet m_servers;

    StringSet m_completed;

    TableParts m_parts;

  };


} // namespace Hypertable

#endif // Hypertable_Master_OperationAlterTable_h