151 lines
3.5 KiB
C++
151 lines
3.5 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2022-2023, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "pgmodeler.h"
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#include "html/htmlparser.h"
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#include "misc.h"
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namespace Winix
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{
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PGModeler::PGModeler()
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{
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}
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PGModeler::~PGModeler()
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{
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}
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bool PGModeler::parse(const std::wstring & input_file, pt::Space & schema, bool sort_tables)
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{
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schema.clear();
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pt::HTMLParser parser;
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pt::HTMLParser::Status status = parser.parse_xml_file(input_file, schema, true, true);
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if( status == pt::HTMLParser::Status::cant_open_file )
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{
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print("cannot open the input file", input_file);
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return false;
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}
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else
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if( status == pt::HTMLParser::Status::syntax_error )
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{
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print("syntax error", input_file, parser.get_last_parsed_line());
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schema.clear();
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return false;
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}
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else
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{
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if( sort_tables )
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make_sort_tables(schema);
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}
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return true;
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}
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std::pair<const std::wstring*, const std::wstring*> PGModeler::get_schema_table_names(const pt::Space & table)
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{
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const pt::Space * schema = table.get_space(L"schema");
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const std::wstring * schema_name = nullptr;
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const std::wstring * table_name = nullptr;
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if( schema )
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{
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const pt::Space * attr = schema->get_space(L"attr");
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if( attr )
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{
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schema_name = attr->get_wstr(L"name");
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}
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}
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const pt::Space * attr = table.get_space(L"attr");
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if( attr )
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{
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table_name = attr->get_wstr(L"name");
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}
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return std::make_pair(schema_name, table_name);
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}
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void PGModeler::make_sort_tables(pt::Space & schema)
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{
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pt::Space * dbmodel = schema.get_space(L"dbmodel");
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if( dbmodel )
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{
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pt::Space::TableType * table = dbmodel->get_table(L"table");
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if( table )
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{
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std::sort(table->begin(), table->end(), [](const pt::Space * t1, const pt::Space * t2) -> bool {
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auto t1_names = get_schema_table_names(*t1);
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auto t2_names = get_schema_table_names(*t2);
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if( t1_names.first && t2_names.second && t2_names.first && t2_names.second )
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{
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if( *t1_names.first != *t2_names.first )
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{
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return *t1_names.first < *t2_names.first;
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}
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else
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{
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return *t1_names.second < *t2_names.second;
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}
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}
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else
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{
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return false;
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}
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});
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}
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}
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}
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}
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