polardbxengine/plugin/polarx_rpc/tests/driver/connector/result_fetcher.h

138 lines
3.7 KiB
C++

/*
* Copyright (c) 2017, 2018, 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
*/
#ifndef PLUGIN_X_TESTS_DRIVER_CONNECTOR_RESULT_FETCHER_H_
#define PLUGIN_X_TESTS_DRIVER_CONNECTOR_RESULT_FETCHER_H_
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "../../client/mysqlxclient/xquery_result.h"
#include "../../client/mysqlxclient/xrow.h"
#include "warning.h"
class Result_fetcher {
public:
using XQuery_result_ptr = std::unique_ptr<xcl::XQuery_result>;
public:
explicit Result_fetcher(XQuery_result_ptr query)
: m_query(std::move(query)) {}
void set_metadata(const std::vector<xcl::Column_metadata> &metadata) {
m_query->set_metadata(metadata);
}
std::vector<xcl::Column_metadata> column_metadata() {
if (m_error) return {};
return m_query->get_metadata(&m_error);
}
const xcl::XRow *next() {
if (m_cached_row) {
auto result = m_cached_row;
m_cached_row = nullptr;
return result;
}
if (m_error) return nullptr;
return m_query->get_next_row(&m_error);
}
bool next_data_set() {
/* Skip empty resultsets */
if (m_query->next_resultset(&m_error)) {
m_cached_row = m_query->get_next_row(&m_error);
return true;
}
return false;
}
xcl::XError get_last_error() const { return m_error; }
bool is_out_params() const { return m_query->is_out_parameter_resultset(); }
int64_t last_insert_id() const {
uint64_t result;
if (!m_query->try_get_last_insert_id(&result)) return -1;
return result;
}
int64_t affected_rows() const {
uint64_t result;
if (!m_query->try_get_affected_rows(&result)) return -1;
return result;
}
std::string info_message() const {
std::string result;
m_query->try_get_info_message(&result);
return result;
}
std::vector<std::string> generated_document_ids() const {
std::vector<std::string> result;
m_query->try_get_generated_document_ids(&result);
return result;
}
const std::vector<Warning> get_warnings() const {
std::vector<Warning> result;
if (nullptr == m_query) return {};
for (const auto &warning : m_query->get_warnings()) {
result.emplace_back(
warning.msg(), warning.code(),
warning.level() == ::Polarx::Notice::Warning_Level_NOTE);
}
return result;
}
private:
XQuery_result_ptr m_query;
xcl::XError m_error;
const xcl::XRow *m_cached_row{nullptr};
};
std::ostream &operator<<(std::ostream &os,
const std::vector<xcl::Column_metadata> &meta);
std::ostream &operator<<(std::ostream &os, Result_fetcher *result);
#endif // PLUGIN_X_TESTS_DRIVER_CONNECTOR_RESULT_FETCHER_H_