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/* -*- 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 <connectivity/statementcomposer.hxx>
#include <connectivity/dbtools.hxx>
#include <com/sun/star/sdb/CommandType.hpp>
#include <com/sun/star/lang/NullPointerException.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/sdb/XQueriesSupplier.hpp>
#include <com/sun/star/sdbc/SQLException.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/sdb/XSingleSelectQueryComposer.hpp>
#include <com/sun/star/sdbc/XConnection.hpp>
#include <unotools/sharedunocomponent.hxx>
#include <tools/diagnose_ex.h>
#include <comphelper/property.hxx>
namespace dbtools
{
using ::com::sun::star::uno::Reference;
using ::com::sun::star::sdbc::XConnection;
using ::com::sun::star::sdb::XSingleSelectQueryComposer;
using ::com::sun::star::lang::NullPointerException;
using ::com::sun::star::uno::Exception;
using ::com::sun::star::lang::XComponent;
using ::com::sun::star::uno::UNO_QUERY_THROW;
using ::com::sun::star::sdb::XQueriesSupplier;
using ::com::sun::star::container::XNameAccess;
using ::com::sun::star::beans::XPropertySet;
using ::com::sun::star::lang::XMultiServiceFactory;
using ::com::sun::star::sdbc::SQLException;
namespace CommandType = ::com::sun::star::sdb::CommandType;
struct StatementComposer_Data
{
const Reference< XConnection > xConnection;
Reference< XSingleSelectQueryComposer > xComposer;
OUString sCommand;
OUString sFilter;
OUString sHavingClause;
OUString sOrder;
sal_Int32 nCommandType;
bool bEscapeProcessing;
bool bComposerDirty;
bool bDisposeComposer;
explicit StatementComposer_Data( const Reference< XConnection >& _rxConnection )
:xConnection( _rxConnection )
,nCommandType( CommandType::COMMAND )
,bEscapeProcessing( true )
,bComposerDirty( true )
,bDisposeComposer( true )
{
if ( !_rxConnection.is() )
throw NullPointerException();
}
};
namespace
{
void lcl_resetComposer( StatementComposer_Data& _rData )
{
if ( _rData.bDisposeComposer && _rData.xComposer.is() )
{
try
{
Reference< XComponent > xComposerComponent( _rData.xComposer, UNO_QUERY_THROW );
xComposerComponent->dispose();
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION("connectivity.commontools");
}
}
_rData.xComposer.clear();
}
bool lcl_ensureUpToDateComposer_nothrow( StatementComposer_Data& _rData )
{
if ( !_rData.bComposerDirty )
return _rData.xComposer.is();
lcl_resetComposer( _rData );
try
{
OUString sStatement;
switch ( _rData.nCommandType )
{
case CommandType::COMMAND:
if ( _rData.bEscapeProcessing )
sStatement = _rData.sCommand;
// (in case of no escape processing we assume a not parseable statement)
break;
case CommandType::TABLE:
{
if ( _rData.sCommand.isEmpty() )
break;
sStatement = "SELECT * FROM ";
OUString sCatalog, sSchema, sTable;
qualifiedNameComponents( _rData.xConnection->getMetaData(), _rData.sCommand, sCatalog, sSchema, sTable, EComposeRule::InDataManipulation );
sStatement += composeTableNameForSelect( _rData.xConnection, sCatalog, sSchema, sTable );
}
break;
case CommandType::QUERY:
{
// ask the connection for the query
Reference< XQueriesSupplier > xSupplyQueries( _rData.xConnection, UNO_QUERY_THROW );
Reference< XNameAccess > xQueries( xSupplyQueries->getQueries(), css::uno::UNO_SET_THROW );
if ( !xQueries->hasByName( _rData.sCommand ) )
break;
Reference< XPropertySet > xQuery( xQueries->getByName( _rData.sCommand ), UNO_QUERY_THROW );
// a native query ?
bool bQueryEscapeProcessing = false;
xQuery->getPropertyValue("EscapeProcessing") >>= bQueryEscapeProcessing;
if ( !bQueryEscapeProcessing )
break;
// the command used by the query
xQuery->getPropertyValue("Command") >>= sStatement;
if ( sStatement.isEmpty() )
break;
// use a composer to build a statement from the query filter/order props
Reference< XMultiServiceFactory > xFactory( _rData.xConnection, UNO_QUERY_THROW );
::utl::SharedUNOComponent< XSingleSelectQueryComposer > xComposer;
xComposer.set(
xFactory->createInstance("com.sun.star.sdb.SingleSelectQueryComposer"),
UNO_QUERY_THROW
);
// the "basic" statement
xComposer->setElementaryQuery( sStatement );
// the sort order
static const OUStringLiteral sPropOrder( u"Order" );
if ( ::comphelper::hasProperty( sPropOrder, xQuery ) )
{
OUString sOrder;
OSL_VERIFY( xQuery->getPropertyValue( sPropOrder ) >>= sOrder );
xComposer->setOrder( sOrder );
}
// the filter
bool bApplyFilter = true;
static const OUStringLiteral sPropApply( u"ApplyFilter" );
if ( ::comphelper::hasProperty( sPropApply, xQuery ) )
{
OSL_VERIFY( xQuery->getPropertyValue( sPropApply ) >>= bApplyFilter );
}
if ( bApplyFilter )
{
OUString sFilter;
OSL_VERIFY( xQuery->getPropertyValue("Filter") >>= sFilter );
xComposer->setFilter( sFilter );
OSL_VERIFY( xQuery->getPropertyValue("HavingClause") >>= sFilter );
xComposer->setHavingClause( sFilter );
}
// the composed statement
sStatement = xComposer->getQuery();
}
break;
default:
OSL_FAIL("lcl_ensureUpToDateComposer_nothrow: no table, no query, no statement - what else ?!");
break;
}
if ( !sStatement.isEmpty() )
{
// create a composer
Reference< XMultiServiceFactory > xFactory( _rData.xConnection, UNO_QUERY_THROW );
Reference< XSingleSelectQueryComposer > xComposer( xFactory->createInstance("com.sun.star.sdb.SingleSelectQueryComposer"),
UNO_QUERY_THROW );
xComposer->setElementaryQuery( sStatement );
// append sort/filter
xComposer->setOrder( _rData.sOrder );
xComposer->setFilter( _rData.sFilter );
xComposer->setHavingClause( _rData.sHavingClause );
sStatement = xComposer->getQuery();
_rData.xComposer = xComposer;
_rData.bComposerDirty = false;
}
}
catch( const SQLException& )
{
// allowed to leave here
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION("connectivity.commontools");
}
return _rData.xComposer.is();
}
}
StatementComposer::StatementComposer( const Reference< XConnection >& _rxConnection,
const OUString& _rCommand, const sal_Int32 _nCommandType, const bool _bEscapeProcessing )
:m_pData( new StatementComposer_Data( _rxConnection ) )
{
OSL_PRECOND( _rxConnection.is(), "StatementComposer::StatementComposer: illegal connection!" );
m_pData->sCommand = _rCommand;
m_pData->nCommandType = _nCommandType;
m_pData->bEscapeProcessing = _bEscapeProcessing;
}
StatementComposer::~StatementComposer()
{
lcl_resetComposer( *m_pData );
}
void StatementComposer::setDisposeComposer( bool _bDoDispose )
{
m_pData->bDisposeComposer = _bDoDispose;
}
void StatementComposer::setFilter( const OUString& _rFilter )
{
m_pData->sFilter = _rFilter;
m_pData->bComposerDirty = true;
}
void StatementComposer::setHavingClause( const OUString& _rHavingClause )
{
m_pData->sHavingClause = _rHavingClause;
m_pData->bComposerDirty = true;
}
void StatementComposer::setOrder( const OUString& _rOrder )
{
m_pData->sOrder = _rOrder;
m_pData->bComposerDirty = true;
}
Reference< XSingleSelectQueryComposer > const & StatementComposer::getComposer()
{
lcl_ensureUpToDateComposer_nothrow( *m_pData );
return m_pData->xComposer;
}
OUString StatementComposer::getQuery()
{
if ( lcl_ensureUpToDateComposer_nothrow( *m_pData ) )
{
return m_pData->xComposer->getQuery();
}
return OUString();
}
} // namespace dbtools
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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