86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/*
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Copyright (c) 2015, 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 as published by
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the Free Software Foundation; version 2 of the License.
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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 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 "i_object_reader.h"
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#include "abstract_data_formatter_wrapper.h"
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#include "abstract_mysql_chain_element_extension.h"
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#include "mysql_object_reader_options.h"
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#include "row_group_dump_task.h"
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#include "table_rows_dump_task.h"
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#include "mysql_field.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
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: public Abstract_data_formatter_wrapper, public I_object_reader,
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public Abstract_mysql_chain_element_extension
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{
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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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Mysql::I_callable<bool, const Mysql::Tools::Base::Message_data&>*
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message_handler, 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(
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Item_processing_data* item_to_process, Row_group_dump_task* row_group);
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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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{
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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, 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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}
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}
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}
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#endif
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