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420 | /* -*- 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 "objectnames.hxx"
#include <core_resource.hxx>
#include <strings.hrc>
#include <com/sun/star/sdb/CommandType.hpp>
#include <com/sun/star/sdbcx/XTablesSupplier.hpp>
#include <com/sun/star/sdb/XQueriesSupplier.hpp>
#include <com/sun/star/sdb/ErrorCondition.hpp>
#include <connectivity/dbmetadata.hxx>
#include <connectivity/dbtools.hxx>
#include <connectivity/sqlerror.hxx>
#include <osl/diagnose.h>
#include <memory>
namespace sdbtools
{
using ::com::sun::star::uno::Reference;
using ::com::sun::star::sdbc::XConnection;
using ::com::sun::star::lang::IllegalArgumentException;
using ::com::sun::star::sdbc::SQLException;
using ::com::sun::star::sdbc::XDatabaseMetaData;
using ::com::sun::star::container::XNameAccess;
using ::com::sun::star::uno::UNO_QUERY_THROW;
using ::com::sun::star::sdbcx::XTablesSupplier;
using ::com::sun::star::sdb::XQueriesSupplier;
using ::com::sun::star::uno::Exception;
using ::com::sun::star::uno::Any;
using ::com::sun::star::uno::XComponentContext;
namespace CommandType = ::com::sun::star::sdb::CommandType;
namespace ErrorCondition = ::com::sun::star::sdb::ErrorCondition;
namespace {
// INameValidation
class INameValidation
{
public:
virtual bool validateName( const OUString& _rName ) = 0;
virtual void validateName_throw( const OUString& _rName ) = 0;
virtual ~INameValidation() { }
};
}
typedef std::shared_ptr< INameValidation > PNameValidation;
namespace {
// PlainExistenceCheck
class PlainExistenceCheck : public INameValidation
{
private:
Reference< XConnection > m_xConnection;
Reference< XNameAccess > m_xContainer;
public:
PlainExistenceCheck( const Reference< XConnection >& _rxConnection, const Reference< XNameAccess >& _rxContainer )
:m_xConnection( _rxConnection )
,m_xContainer( _rxContainer )
{
OSL_ENSURE( m_xContainer.is(), "PlainExistenceCheck::PlainExistenceCheck: this will crash!" );
}
// INameValidation
virtual bool validateName( const OUString& _rName ) override
{
return !m_xContainer->hasByName( _rName );
}
virtual void validateName_throw( const OUString& _rName ) override
{
if ( validateName( _rName ) )
return;
::connectivity::SQLError aErrors;
SQLException aError( aErrors.getSQLException( ErrorCondition::DB_OBJECT_NAME_IS_USED, m_xConnection, _rName ) );
::dbtools::DatabaseMetaData aMeta( m_xConnection );
if ( aMeta.supportsSubqueriesInFrom() )
{
OUString sNeedDistinctNames( DBA_RES( STR_QUERY_AND_TABLE_DISTINCT_NAMES ) );
aError.NextException <<= SQLException( sNeedDistinctNames, m_xConnection, OUString(), 0, Any() );
}
throw aError;
}
};
// TableValidityCheck
class TableValidityCheck : public INameValidation
{
const Reference< XConnection > m_xConnection;
public:
TableValidityCheck( const Reference< XConnection >& _rxConnection )<--- Class 'TableValidityCheck' has a constructor with 1 argument that is not explicit. [+]Class 'TableValidityCheck' 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_xConnection( _rxConnection )
{
}
virtual bool validateName( const OUString& _rName ) override
{
::dbtools::DatabaseMetaData aMeta( m_xConnection );
if ( !aMeta.restrictIdentifiersToSQL92() )
return true;
OUString sCatalog, sSchema, sName;
::dbtools::qualifiedNameComponents(
m_xConnection->getMetaData(), _rName, sCatalog, sSchema, sName, ::dbtools::EComposeRule::InTableDefinitions );
OUString sExtraNameCharacters( m_xConnection->getMetaData()->getExtraNameCharacters() );
return !( ( !sCatalog.isEmpty() && !::dbtools::isValidSQLName( sCatalog, sExtraNameCharacters ) )
|| ( !sSchema.isEmpty() && !::dbtools::isValidSQLName( sSchema, sExtraNameCharacters ) )
|| ( !sName.isEmpty() && !::dbtools::isValidSQLName( sName, sExtraNameCharacters ) ));
}
virtual void validateName_throw( const OUString& _rName ) override
{
if ( validateName( _rName ) )
return;
::connectivity::SQLError aErrors;
aErrors.raiseException( ErrorCondition::DB_INVALID_SQL_NAME, m_xConnection, _rName );
}
};
// QueryValidityCheck
class QueryValidityCheck : public INameValidation
{
const Reference< XConnection > m_xConnection;
public:
QueryValidityCheck( const Reference< XConnection >& _rxConnection )<--- Class 'QueryValidityCheck' has a constructor with 1 argument that is not explicit. [+]Class 'QueryValidityCheck' 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_xConnection( _rxConnection )
{
}
static ::connectivity::ErrorCondition validateName_getErrorCondition( const OUString& _rName )
{
if ( ( _rName.indexOf( u'"' ) >= 0 )
|| ( _rName.indexOf( u'\'' ) >= 0 )
|| ( _rName.indexOf( u'`' ) >= 0 )
|| ( _rName.indexOf( u'\x0091' ) >= 0 )
|| ( _rName.indexOf( u'\x0092' ) >= 0 )
|| ( _rName.indexOf( u'\x00B4' ) >= 0 ) // removed unparsable chars
)
return ErrorCondition::DB_QUERY_NAME_WITH_QUOTES;
if ( _rName.indexOf( '/') >= 0 )
return ErrorCondition::DB_OBJECT_NAME_WITH_SLASHES;
return 0;
}
virtual bool validateName( const OUString& _rName ) override
{
return validateName_getErrorCondition( _rName ) == 0;
}
virtual void validateName_throw( const OUString& _rName ) override
{
::connectivity::ErrorCondition nErrorCondition = validateName_getErrorCondition( _rName );
if ( nErrorCondition != 0 )
{
::connectivity::SQLError aErrors;
aErrors.raiseException( nErrorCondition, m_xConnection );
}
}
};
// CombinedNameCheck
class CombinedNameCheck : public INameValidation
{
private:
PNameValidation m_pPrimary;
PNameValidation m_pSecondary;
public:
CombinedNameCheck(const PNameValidation& _pPrimary, const PNameValidation& _pSecondary)
:m_pPrimary( _pPrimary )
,m_pSecondary( _pSecondary )
{
OSL_ENSURE( m_pPrimary && m_pSecondary, "CombinedNameCheck::CombinedNameCheck: this will crash!" );
}
// INameValidation
virtual bool validateName( const OUString& _rName ) override
{
return m_pPrimary->validateName( _rName ) && m_pSecondary->validateName( _rName );
}
virtual void validateName_throw( const OUString& _rName ) override
{
m_pPrimary->validateName_throw( _rName );
m_pSecondary->validateName_throw( _rName );
}
};
// NameCheckFactory
class NameCheckFactory
{
public:
NameCheckFactory(const NameCheckFactory&) = delete;
const NameCheckFactory& operator=(const NameCheckFactory&) = delete;
/** creates an INameValidation instance which can be used to check the existence of query or table names
@param _nCommandType
the type of objects (CommandType::TABLE or CommandType::QUERY) of which names shall be checked for existence
@param _rxConnection
the connection relative to which the names are to be checked. Must be an SDB-level connection
@throws IllegalArgumentException
if the given connection is no SDB-level connection
@throws IllegalArgumentException
if the given command type is neither CommandType::TABLE or CommandType::QUERY
*/
static PNameValidation createExistenceCheck(
sal_Int32 _nCommandType,
const Reference< XConnection >& _rxConnection
);
/** creates an INameValidation instance which can be used to check the validity of a query or table name
@param _nCommandType
the type of objects (CommandType::TABLE or CommandType::QUERY) of which names shall be validated
@param _rxConnection
the connection relative to which the names are to be checked. Must be an SDB-level connection
@throws IllegalArgumentException
if the given connection is no SDB-level connection
@throws IllegalArgumentException
if the given command type is neither CommandType::TABLE or CommandType::QUERY
*/
static PNameValidation createValidityCheck(
const sal_Int32 _nCommandType,
const Reference< XConnection >& _rxConnection
);
private:
static void verifyCommandType( sal_Int32 _nCommandType );
};
}
void NameCheckFactory::verifyCommandType( sal_Int32 _nCommandType )
{
if ( ( _nCommandType != CommandType::TABLE )
&& ( _nCommandType != CommandType::QUERY )
)
throw IllegalArgumentException(
DBA_RES( STR_INVALID_COMMAND_TYPE ),
nullptr,
0
);
}
PNameValidation NameCheckFactory::createExistenceCheck( sal_Int32 _nCommandType, const Reference< XConnection >& _rxConnection )
{
verifyCommandType( _nCommandType );
::dbtools::DatabaseMetaData aMeta( _rxConnection );
Reference< XNameAccess > xTables, xQueries;
try
{
Reference< XTablesSupplier > xSuppTables( _rxConnection, UNO_QUERY_THROW );
Reference< XQueriesSupplier > xQueriesSupplier( _rxConnection, UNO_QUERY_THROW );
xTables.set( xSuppTables->getTables(), css::uno::UNO_SET_THROW );
xQueries.set( xQueriesSupplier->getQueries(), css::uno::UNO_SET_THROW );
}
catch( const Exception& )
{
throw IllegalArgumentException(
DBA_RES( STR_CONN_WITHOUT_QUERIES_OR_TABLES ),
nullptr,
0
);
}
PNameValidation pTableCheck = std::make_shared<PlainExistenceCheck>( _rxConnection, xTables );
PNameValidation pQueryCheck = std::make_shared<PlainExistenceCheck>( _rxConnection, xQueries );
PNameValidation pReturn;
if ( aMeta.supportsSubqueriesInFrom() )
pReturn = std::make_shared<CombinedNameCheck>( pTableCheck, pQueryCheck );
else if ( _nCommandType == CommandType::TABLE )
pReturn = pTableCheck;
else
pReturn = pQueryCheck;
return pReturn;
}
PNameValidation NameCheckFactory::createValidityCheck( sal_Int32 _nCommandType, const Reference< XConnection >& _rxConnection )
{
verifyCommandType( _nCommandType );
Reference< XDatabaseMetaData > xMeta;
try
{
xMeta.set( _rxConnection->getMetaData(), css::uno::UNO_SET_THROW );
}
catch( const Exception& )
{
throw IllegalArgumentException(
"The connection could not provide its database's meta data.",
nullptr,
0
);
}
if ( _nCommandType == CommandType::TABLE )
return std::make_shared<TableValidityCheck>( _rxConnection );
return std::make_shared<QueryValidityCheck>( _rxConnection );
}
// ObjectNames
ObjectNames::ObjectNames( const Reference<XComponentContext>& _rContext, const Reference< XConnection >& _rxConnection )
:ConnectionDependentComponent( _rContext )
{
setWeakConnection( _rxConnection );
}
ObjectNames::~ObjectNames()
{
}
OUString SAL_CALL ObjectNames::suggestName( ::sal_Int32 CommandType, const OUString& BaseName )
{
EntryGuard aGuard( *this );
PNameValidation pNameCheck( NameCheckFactory::createExistenceCheck( CommandType, getConnection() ) );
OUString sBaseName( BaseName );
if ( sBaseName.isEmpty() )
{
if ( CommandType == CommandType::TABLE )
sBaseName = DBA_RES(STR_BASENAME_TABLE);
else
sBaseName = DBA_RES(STR_BASENAME_QUERY);
}
else if( CommandType == CommandType::QUERY )
{
sBaseName=sBaseName.replace('/', '_');
}
OUString sName( sBaseName );
sal_Int32 i = 1;
while ( !pNameCheck->validateName( sName ) )
{
sName = sBaseName + " " + OUString::number(++i);
}
return sName;
}
OUString SAL_CALL ObjectNames::convertToSQLName( const OUString& Name )<--- The function 'convertToSQLName' is never used.
{
EntryGuard aGuard( *this );
Reference< XDatabaseMetaData > xMeta( getConnection()->getMetaData(), css::uno::UNO_SET_THROW );
return ::dbtools::convertName2SQLName( Name, xMeta->getExtraNameCharacters() );
}
sal_Bool SAL_CALL ObjectNames::isNameUsed( ::sal_Int32 CommandType, const OUString& Name )
{
EntryGuard aGuard( *this );
PNameValidation pNameCheck( NameCheckFactory::createExistenceCheck( CommandType, getConnection()) );
return !pNameCheck->validateName( Name );
}
sal_Bool SAL_CALL ObjectNames::isNameValid( ::sal_Int32 CommandType, const OUString& Name )
{
EntryGuard aGuard( *this );
PNameValidation pNameCheck( NameCheckFactory::createValidityCheck( CommandType, getConnection()) );
return pNameCheck->validateName( Name );
}
void SAL_CALL ObjectNames::checkNameForCreate( ::sal_Int32 CommandType, const OUString& Name )
{
EntryGuard aGuard( *this );
PNameValidation pNameCheck( NameCheckFactory::createExistenceCheck( CommandType, getConnection() ) );
pNameCheck->validateName_throw( Name );
pNameCheck = NameCheckFactory::createValidityCheck( CommandType, getConnection() );
pNameCheck->validateName_throw( Name );
}
} // namespace sdbtools
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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