110 lines
3.8 KiB
C++
110 lines
3.8 KiB
C++
/*
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Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef MYSQL_OBJECT_READER_INCLUDED
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#define MYSQL_OBJECT_READER_INCLUDED
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#include <functional>
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#include "client/dump/abstract_data_formatter_wrapper.h"
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#include "client/dump/abstract_mysql_chain_element_extension.h"
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#include "client/dump/i_object_reader.h"
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#include "client/dump/mysql_field.h"
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#include "client/dump/mysql_object_reader_options.h"
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#include "client/dump/row_group_dump_task.h"
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#include "client/dump/table_rows_dump_task.h"
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#include "my_inttypes.h"
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namespace Mysql {
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namespace Tools {
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namespace Dump {
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/**
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Parses any DB object(excluding rows and privileges for DB objects) data using
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connection to MySQL server.
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*/
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class Mysql_object_reader : public Abstract_data_formatter_wrapper,
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public I_object_reader,
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public Abstract_mysql_chain_element_extension {
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public:
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Mysql_object_reader(
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I_connection_provider *connection_provider,
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std::function<bool(const Mysql::Tools::Base::Message_data &)>
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*message_handler,
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Simple_id_generator *object_id_generator,
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const Mysql_object_reader_options *options);
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void read_object(Item_processing_data *item_to_process);
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void format_rows(Item_processing_data *item_to_process,
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Row_group_dump_task *row_group);
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// Fix "inherits ... via dominance" warnings
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void register_progress_watcher(I_progress_watcher *new_progress_watcher) {
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Abstract_chain_element::register_progress_watcher(new_progress_watcher);
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}
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// Fix "inherits ... via dominance" warnings
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uint64 get_id() const { return Abstract_chain_element::get_id(); }
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protected:
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// Fix "inherits ... via dominance" warnings
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void item_completion_in_child_callback(Item_processing_data *item_processed) {
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Abstract_chain_element::item_completion_in_child_callback(item_processed);
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}
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private:
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void read_table_rows_task(Table_rows_dump_task *table_rows_dump_task,
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Item_processing_data *item_to_process);
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const Mysql_object_reader_options *m_options;
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class Rows_fetching_context {
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public:
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Rows_fetching_context(Mysql_object_reader *parent,
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Item_processing_data *item_processing,
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bool has_generated_column);
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int64 result_callback(
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const Mysql::Tools::Base::Mysql_query_runner::Row &row_data);
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void process_buffer();
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bool is_all_rows_processed();
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private:
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void acquire_fields_information(MYSQL_RES *mysql_result);
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Mysql_object_reader *m_parent;
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Item_processing_data *m_item_processing;
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Row_group_dump_task m_row_group;
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std::vector<Mysql_field> m_fields;
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};
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};
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} // namespace Dump
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} // namespace Tools
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} // namespace Mysql
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#endif
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