polardbxengine/plugin/x/tests/driver/processor/stream_processor.cc

128 lines
4.8 KiB
C++

/*
* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2.0,
* as published by the Free Software Foundation.
*
* This program is also distributed with certain software (including
* but not limited to OpenSSL) that is licensed under separate terms,
* as designated in a particular file or component or in included license
* documentation. The authors of MySQL hereby grant you an additional
* permission to link the program and your derivative works with the
* separately licensed software that they have included with MySQL.
*
* This program 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, version 2.0, 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "plugin/x/tests/driver/processor/stream_processor.h"
#include <memory>
#include <string>
#include "my_dbug.h"
#include "plugin/x/tests/driver/processor/command_multiline_processor.h"
#include "plugin/x/tests/driver/processor/command_processor.h"
#include "plugin/x/tests/driver/processor/comment_processor.h"
#include "plugin/x/tests/driver/processor/dump_message_block_processor.h"
#include "plugin/x/tests/driver/processor/indigestion_processor.h"
#include "plugin/x/tests/driver/processor/macro_block_processor.h"
#include "plugin/x/tests/driver/processor/sql_block_processor.h"
#include "plugin/x/tests/driver/processor/sql_stmt_processor.h"
std::vector<Block_processor_ptr> create_macro_block_processors(
Execution_context *context) {
std::vector<Block_processor_ptr> result;
result.push_back(std::make_shared<Comment_processor>());
result.push_back(std::make_shared<Sql_block_processor>(context));
result.push_back(std::make_shared<Dump_message_block_processor>(context));
result.push_back(std::make_shared<Command_processor>(context));
result.push_back(std::make_shared<Command_multiline_processor>(context));
result.push_back(std::make_shared<Send_message_block_processor>(context));
result.push_back(std::make_shared<Sql_stmt_processor>(context));
result.push_back(std::make_shared<Indigestion_processor>(context));
return result;
}
std::vector<Block_processor_ptr> create_block_processors(
Execution_context *context) {
std::vector<Block_processor_ptr> result;
result.push_back(std::make_shared<Comment_processor>());
result.push_back(std::make_shared<Sql_block_processor>(context));
result.push_back(std::make_shared<Macro_block_processor>(context));
result.push_back(std::make_shared<Dump_message_block_processor>(context));
result.push_back(std::make_shared<Command_processor>(context));
result.push_back(std::make_shared<Command_multiline_processor>(context));
result.push_back(std::make_shared<Send_message_block_processor>(context));
result.push_back(std::make_shared<Sql_stmt_processor>(context));
result.push_back(std::make_shared<Indigestion_processor>(context));
return result;
}
int process_client_input(std::istream &input,
std::vector<Block_processor_ptr> *eaters,
Script_stack *script_stack, const Console &console) {
DBUG_TRACE;
std::string linebuf;
if (!input.good()) {
console.print_error("Input stream isn't valid\n");
return 1;
}
Block_processor_ptr hungry_block_reader;
while (std::getline(input, linebuf)) {
Block_processor::Result result = Block_processor::Result::Not_hungry;
script_stack->front().m_line_number++;
if (!hungry_block_reader) {
std::vector<Block_processor_ptr>::iterator i = eaters->begin();
while (i != eaters->end() &&
Block_processor::Result::Not_hungry == result) {
result = (*i)->feed(input, linebuf.c_str());
if (Block_processor::Result::Indigestion == result) return 1;
if (Block_processor::Result::Feed_more == result)
hungry_block_reader = (*i);
++i;
}
if (Block_processor::Result::Everyone_not_hungry == result) break;
continue;
}
result = hungry_block_reader->feed(input, linebuf.c_str());
if (Block_processor::Result::Indigestion == result) return 1;
if (Block_processor::Result::Feed_more != result)
hungry_block_reader.reset();
if (Block_processor::Result::Everyone_not_hungry == result) break;
}
std::vector<Block_processor_ptr>::iterator i = eaters->begin();
while (i != eaters->end()) {
if (!(*i)->feed_ended_is_state_ok()) return 1;
++i;
}
return 0;
}