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199 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "parseschema.hxx"
#include "fbcreateparser.hxx"
#include "fbalterparser.hxx"
#include "utils.hxx"
#include <com/sun/star/io/TextInputStream.hpp>
#include <com/sun/star/embed/XStorage.hpp>
#include <com/sun/star/embed/ElementModes.hpp>
#include <comphelper/processfactory.hxx>
#include <comphelper/string.hxx>
#include <sal/log.hxx>
#include <connectivity/dbexception.hxx>
namespace
{
using namespace ::comphelper;
using IndexVector = std::vector<sal_Int32>;
class IndexStmtParser
{
private:
OUString m_sql;
public:
IndexStmtParser(const OUString& sSql)<--- Class 'IndexStmtParser' has a constructor with 1 argument that is not explicit. [+]Class 'IndexStmtParser' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
: m_sql(sSql)
{
}
bool isIndexStatement() const
{
return m_sql.startsWith("SET TABLE") && m_sql.indexOf("INDEX") >= 0;
}
IndexVector getIndexes() const
{
assert(isIndexStatement());
OUString sIndexPart = m_sql.copy(m_sql.indexOf("INDEX") + 5);
sal_Int32 nQuotePos = sIndexPart.indexOf("'") + 1;
OUString sIndexNums = sIndexPart.copy(nQuotePos, sIndexPart.lastIndexOf("'") - nQuotePos);
std::vector<OUString> sIndexes = string::split(sIndexNums, u' ');
IndexVector indexes;
for (const auto& sIndex : sIndexes)
indexes.push_back(sIndex.toInt32());<--- Consider using std::transform algorithm instead of a raw loop.
// ignore last element
// TODO this is an identity peek, which indicates the value of the next
// identity. At the current state all migrated identities start with 0.
indexes.pop_back();
return indexes;
}
OUString getTableName() const
{
// SET TABLE <tableName> or SET TABLE "<multi word table name>"
OUString sName = string::split(m_sql, u' ')[2];
if (sName.indexOf('"') >= 0)
{
// Table name with string delimiter
OUStringBuffer sMultiName("\"");
sMultiName.append(string::split(m_sql, u'"')[1]);
sMultiName.append("\"");
sName = sMultiName.makeStringAndClear();
}
return sName;
}
};
OUString lcl_createAlterForeign(const OUString& sForeignPart, const OUString& sTableName)
{
return "ALTER TABLE " + sTableName + " ADD " + sForeignPart;
}
} // anonymous namespace
namespace dbahsql
{
using namespace css::io;
using namespace css::uno;
using namespace css::embed;
typedef std::vector<ColumnDefinition> ColumnTypeVector;
SchemaParser::SchemaParser(Reference<XStorage>& rStorage)
: m_rStorage(rStorage)
{
}
void SchemaParser::parseSchema()
{
assert(m_rStorage);
constexpr char SCHEMA_FILENAME[] = "script";
if (!m_rStorage->hasByName(SCHEMA_FILENAME))
{
SAL_WARN("dbaccess", "script file does not exist in storage during hsqldb import");
return;
}
Reference<XStream> xStream(m_rStorage->openStreamElement(SCHEMA_FILENAME, ElementModes::READ));
Reference<XComponentContext> rContext = comphelper::getProcessComponentContext();
Reference<XTextInputStream2> xTextInput = TextInputStream::create(rContext);
xTextInput->setEncoding("UTF-8");
xTextInput->setInputStream(xStream->getInputStream());
while (!xTextInput->isEOF())
{
// every line contains exactly one DDL statement
OUString sSql = utils::convertToUTF8(
OUStringToOString(xTextInput->readLine(), RTL_TEXTENCODING_UTF8));
IndexStmtParser indexParser{ sSql };
if (indexParser.isIndexStatement())
{
m_Indexes[indexParser.getTableName()] = indexParser.getIndexes();
}
else if (sSql.startsWith("SET") || sSql.startsWith("CREATE USER")
|| sSql.startsWith("CREATE SCHEMA") || sSql.startsWith("GRANT"))
continue;
else if (sSql.startsWith("CREATE CACHED TABLE") || sSql.startsWith("CREATE TABLE"))
{
FbCreateStmtParser aCreateParser;
aCreateParser.parse(sSql);
for (const auto& foreignParts : aCreateParser.getForeignParts())
{
m_sAlterStatements.push_back(<--- Consider using std::transform algorithm instead of a raw loop.
lcl_createAlterForeign(foreignParts, aCreateParser.getTableName()));
}
sSql = aCreateParser.compose();
// save column definitions
m_ColumnTypes[aCreateParser.getTableName()] = aCreateParser.getColumnDef();
m_sCreateStatements.push_back(sSql);
}
else if (sSql.startsWith("ALTER"))
{
FbAlterStmtParser aAlterParser;
aAlterParser.parse(sSql);
OUString parsedStmt = aAlterParser.compose();
if (!parsedStmt.isEmpty())
m_sAlterStatements.push_back(parsedStmt);
}
else if (sSql.startsWith("CREATE VIEW"))
m_sCreateStatements.push_back(sSql);
}
}
std::vector<ColumnDefinition> SchemaParser::getTableColumnTypes(const OUString& sTableName) const
{
if (m_ColumnTypes.count(sTableName) < 1)
{
constexpr char NOT_EXIST[] = "Internal error while getting column information of table";
SAL_WARN("dbaccess", NOT_EXIST << ". Table name is: " << sTableName);
dbtools::throwGenericSQLException(NOT_EXIST, ::comphelper::getProcessComponentContext());
}
return m_ColumnTypes.at(sTableName);
}
const std::map<OUString, std::vector<sal_Int32>>& SchemaParser::getTableIndexes() const
{
return m_Indexes;
}
const std::map<OUString, std::vector<OUString>>& SchemaParser::getPrimaryKeys() const
{
return m_PrimaryKeys;
}
} // namespace dbahsql
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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