a0656ec6fc
Mostly automated rewrite Change-Id: Ie020a083f898bc126b8fb039d4ecb2e687172da1 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112965 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
304 lines
11 KiB
C++
304 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <connectivity/statementcomposer.hxx>
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#include <connectivity/dbtools.hxx>
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#include <com/sun/star/sdb/CommandType.hpp>
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#include <com/sun/star/lang/NullPointerException.hpp>
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#include <com/sun/star/lang/XComponent.hpp>
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#include <com/sun/star/sdb/XQueriesSupplier.hpp>
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#include <com/sun/star/sdbc/SQLException.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <com/sun/star/sdb/XSingleSelectQueryComposer.hpp>
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#include <com/sun/star/sdbc/XConnection.hpp>
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#include <unotools/sharedunocomponent.hxx>
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#include <tools/diagnose_ex.h>
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#include <comphelper/property.hxx>
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namespace dbtools
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{
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::sdbc::XConnection;
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using ::com::sun::star::sdb::XSingleSelectQueryComposer;
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using ::com::sun::star::lang::NullPointerException;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::lang::XComponent;
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using ::com::sun::star::uno::UNO_QUERY_THROW;
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using ::com::sun::star::sdb::XQueriesSupplier;
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using ::com::sun::star::container::XNameAccess;
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using ::com::sun::star::beans::XPropertySet;
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using ::com::sun::star::lang::XMultiServiceFactory;
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using ::com::sun::star::sdbc::SQLException;
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namespace CommandType = ::com::sun::star::sdb::CommandType;
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struct StatementComposer_Data
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{
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const Reference< XConnection > xConnection;
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Reference< XSingleSelectQueryComposer > xComposer;
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OUString sCommand;
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OUString sFilter;
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OUString sHavingClause;
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OUString sOrder;
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sal_Int32 nCommandType;
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bool bEscapeProcessing;
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bool bComposerDirty;
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bool bDisposeComposer;
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explicit StatementComposer_Data( const Reference< XConnection >& _rxConnection )
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:xConnection( _rxConnection )
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,sCommand()
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,sFilter()
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,sOrder()
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,nCommandType( CommandType::COMMAND )
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,bEscapeProcessing( true )
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,bComposerDirty( true )
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,bDisposeComposer( true )
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{
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if ( !_rxConnection.is() )
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throw NullPointerException();
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}
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};
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namespace
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{
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void lcl_resetComposer( StatementComposer_Data& _rData )
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{
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if ( _rData.bDisposeComposer && _rData.xComposer.is() )
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{
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try
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{
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Reference< XComponent > xComposerComponent( _rData.xComposer, UNO_QUERY_THROW );
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xComposerComponent->dispose();
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION("connectivity.commontools");
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}
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}
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_rData.xComposer.clear();
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}
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bool lcl_ensureUpToDateComposer_nothrow( StatementComposer_Data& _rData )
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{
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if ( !_rData.bComposerDirty )
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return _rData.xComposer.is();
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lcl_resetComposer( _rData );
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try
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{
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OUString sStatement;
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switch ( _rData.nCommandType )
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{
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case CommandType::COMMAND:
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if ( _rData.bEscapeProcessing )
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sStatement = _rData.sCommand;
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// (in case of no escape processing we assume a not parseable statement)
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break;
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case CommandType::TABLE:
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{
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if ( _rData.sCommand.isEmpty() )
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break;
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sStatement = "SELECT * FROM ";
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OUString sCatalog, sSchema, sTable;
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qualifiedNameComponents( _rData.xConnection->getMetaData(), _rData.sCommand, sCatalog, sSchema, sTable, EComposeRule::InDataManipulation );
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sStatement += composeTableNameForSelect( _rData.xConnection, sCatalog, sSchema, sTable );
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}
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break;
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case CommandType::QUERY:
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{
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// ask the connection for the query
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Reference< XQueriesSupplier > xSupplyQueries( _rData.xConnection, UNO_QUERY_THROW );
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Reference< XNameAccess > xQueries( xSupplyQueries->getQueries(), css::uno::UNO_SET_THROW );
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if ( !xQueries->hasByName( _rData.sCommand ) )
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break;
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Reference< XPropertySet > xQuery( xQueries->getByName( _rData.sCommand ), UNO_QUERY_THROW );
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// a native query ?
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bool bQueryEscapeProcessing = false;
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xQuery->getPropertyValue("EscapeProcessing") >>= bQueryEscapeProcessing;
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if ( !bQueryEscapeProcessing )
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break;
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// the command used by the query
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xQuery->getPropertyValue("Command") >>= sStatement;
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if ( sStatement.isEmpty() )
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break;
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// use a composer to build a statement from the query filter/order props
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Reference< XMultiServiceFactory > xFactory( _rData.xConnection, UNO_QUERY_THROW );
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::utl::SharedUNOComponent< XSingleSelectQueryComposer > xComposer;
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xComposer.set(
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xFactory->createInstance("com.sun.star.sdb.SingleSelectQueryComposer"),
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UNO_QUERY_THROW
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);
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// the "basic" statement
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xComposer->setElementaryQuery( sStatement );
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// the sort order
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static const OUStringLiteral sPropOrder( u"Order" );
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if ( ::comphelper::hasProperty( sPropOrder, xQuery ) )
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{
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OUString sOrder;
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OSL_VERIFY( xQuery->getPropertyValue( sPropOrder ) >>= sOrder );
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xComposer->setOrder( sOrder );
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}
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// the filter
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bool bApplyFilter = true;
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static const OUStringLiteral sPropApply( u"ApplyFilter" );
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if ( ::comphelper::hasProperty( sPropApply, xQuery ) )
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{
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OSL_VERIFY( xQuery->getPropertyValue( sPropApply ) >>= bApplyFilter );
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}
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if ( bApplyFilter )
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{
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OUString sFilter;
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OSL_VERIFY( xQuery->getPropertyValue("Filter") >>= sFilter );
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xComposer->setFilter( sFilter );
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OSL_VERIFY( xQuery->getPropertyValue("HavingClause") >>= sFilter );
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xComposer->setHavingClause( sFilter );
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}
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// the composed statement
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sStatement = xComposer->getQuery();
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}
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break;
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default:
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OSL_FAIL("lcl_ensureUpToDateComposer_nothrow: no table, no query, no statement - what else ?!");
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break;
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}
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if ( !sStatement.isEmpty() )
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{
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// create a composer
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Reference< XMultiServiceFactory > xFactory( _rData.xConnection, UNO_QUERY_THROW );
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Reference< XSingleSelectQueryComposer > xComposer( xFactory->createInstance("com.sun.star.sdb.SingleSelectQueryComposer"),
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UNO_QUERY_THROW );
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xComposer->setElementaryQuery( sStatement );
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// append sort/filter
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xComposer->setOrder( _rData.sOrder );
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xComposer->setFilter( _rData.sFilter );
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xComposer->setHavingClause( _rData.sHavingClause );
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sStatement = xComposer->getQuery();
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_rData.xComposer = xComposer;
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_rData.bComposerDirty = false;
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}
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}
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catch( const SQLException& )
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{
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// allowed to leave here
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}
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catch( const Exception& )
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{
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DBG_UNHANDLED_EXCEPTION("connectivity.commontools");
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}
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return _rData.xComposer.is();
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}
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}
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StatementComposer::StatementComposer( const Reference< XConnection >& _rxConnection,
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const OUString& _rCommand, const sal_Int32 _nCommandType, const bool _bEscapeProcessing )
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:m_pData( new StatementComposer_Data( _rxConnection ) )
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{
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OSL_PRECOND( _rxConnection.is(), "StatementComposer::StatementComposer: illegal connection!" );
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m_pData->sCommand = _rCommand;
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m_pData->nCommandType = _nCommandType;
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m_pData->bEscapeProcessing = _bEscapeProcessing;
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}
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StatementComposer::~StatementComposer()
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{
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lcl_resetComposer( *m_pData );
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}
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void StatementComposer::setDisposeComposer( bool _bDoDispose )
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{
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m_pData->bDisposeComposer = _bDoDispose;
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}
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void StatementComposer::setFilter( const OUString& _rFilter )
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{
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m_pData->sFilter = _rFilter;
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m_pData->bComposerDirty = true;
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}
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void StatementComposer::setHavingClause( const OUString& _rHavingClause )
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{
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m_pData->sHavingClause = _rHavingClause;
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m_pData->bComposerDirty = true;
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}
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void StatementComposer::setOrder( const OUString& _rOrder )
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{
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m_pData->sOrder = _rOrder;
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m_pData->bComposerDirty = true;
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}
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Reference< XSingleSelectQueryComposer > const & StatementComposer::getComposer()
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{
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lcl_ensureUpToDateComposer_nothrow( *m_pData );
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return m_pData->xComposer;
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}
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OUString StatementComposer::getQuery()
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{
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if ( lcl_ensureUpToDateComposer_nothrow( *m_pData ) )
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{
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return m_pData->xComposer->getQuery();
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}
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return OUString();
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}
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} // namespace dbtools
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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