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Diffstat (limited to '')
| -rw-r--r-- | ucbhelper/source/provider/resultsethelper.cxx | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/ucbhelper/source/provider/resultsethelper.cxx b/ucbhelper/source/provider/resultsethelper.cxx new file mode 100644 index 000000000..60f8977d1 --- /dev/null +++ b/ucbhelper/source/provider/resultsethelper.cxx @@ -0,0 +1,254 @@ +/* -*- 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 . + */ + + +/************************************************************************** + TODO + ************************************************************************** + + - This implementation is far away from completion. It has no interface + for changes notifications etc. + + *************************************************************************/ +#include <com/sun/star/ucb/ListActionType.hpp> +#include <com/sun/star/ucb/ListenerAlreadySetException.hpp> +#include <com/sun/star/ucb/ServiceNotFoundException.hpp> +#include <com/sun/star/ucb/WelcomeDynamicResultSetStruct.hpp> +#include <com/sun/star/ucb/CachedDynamicResultSetStubFactory.hpp> +#include <com/sun/star/ucb/XSourceInitialization.hpp> +#include <cppuhelper/supportsservice.hxx> +#include <ucbhelper/resultsethelper.hxx> + +#include <osl/diagnose.h> + +using namespace com::sun::star; + + +// ResultSetImplHelper Implementation. + + +namespace ucbhelper { + + +ResultSetImplHelper::ResultSetImplHelper( + const uno::Reference< uno::XComponentContext >& rxContext, + const css::ucb::OpenCommandArgument2& rCommand ) +: m_bStatic( false ), + m_bInitDone( false ), + m_aCommand( rCommand ), + m_xContext( rxContext ) +{ +} + + +// virtual +ResultSetImplHelper::~ResultSetImplHelper() +{ +} + + +// XServiceInfo methods. + +OUString SAL_CALL ResultSetImplHelper::getImplementationName() +{ + return "ResultSetImplHelper"; +} + +sal_Bool SAL_CALL ResultSetImplHelper::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService( this, ServiceName ); +} + +css::uno::Sequence< OUString > SAL_CALL ResultSetImplHelper::getSupportedServiceNames() +{ + return { DYNAMICRESULTSET_SERVICE_NAME }; +} + +// XComponent methods. + + +// virtual +void SAL_CALL ResultSetImplHelper::dispose() +{ + std::unique_lock aGuard( m_aMutex ); + + if ( m_aDisposeEventListeners.getLength(aGuard) ) + { + lang::EventObject aEvt; + aEvt.Source = static_cast< lang::XComponent * >( this ); + m_aDisposeEventListeners.disposeAndClear( aGuard, aEvt ); + } +} + + +// virtual +void SAL_CALL ResultSetImplHelper::addEventListener( + const uno::Reference< lang::XEventListener >& Listener ) +{ + std::unique_lock aGuard( m_aMutex ); + + m_aDisposeEventListeners.addInterface( aGuard, Listener ); +} + + +// virtual +void SAL_CALL ResultSetImplHelper::removeEventListener( + const uno::Reference< lang::XEventListener >& Listener ) +{ + std::unique_lock aGuard( m_aMutex ); + + m_aDisposeEventListeners.removeInterface( aGuard, Listener ); +} + + +// XDynamicResultSet methods. + + +// virtual +uno::Reference< sdbc::XResultSet > SAL_CALL +ResultSetImplHelper::getStaticResultSet() +{ + std::unique_lock aGuard( m_aMutex ); + + if ( m_xListener.is() ) + throw css::ucb::ListenerAlreadySetException(); + + init( true ); + return m_xResultSet1; +} + + +// virtual +void SAL_CALL ResultSetImplHelper::setListener( + const uno::Reference< css::ucb::XDynamicResultSetListener >& Listener ) +{ + std::unique_lock aGuard( m_aMutex ); + + if ( m_bStatic || m_xListener.is() ) + throw css::ucb::ListenerAlreadySetException(); + + m_xListener = Listener; + + + // Create "welcome event" and send it to listener. + + + // Note: We only have the implementation for a static result set at the + // moment (src590). The dynamic result sets passed to the listener + // are a fake. This implementation will never call "notify" at the + // listener to propagate any changes!!! + + init( false ); + + uno::Any aInfo; + aInfo <<= css::ucb::WelcomeDynamicResultSetStruct( + m_xResultSet1 /* "old" */, + m_xResultSet2 /* "new" */ ); + + uno::Sequence< css::ucb::ListAction > aActions { + css::ucb::ListAction( + 0, // Position; not used + 0, // Count; not used + css::ucb::ListActionType::WELCOME, + aInfo ) }; + aGuard.unlock(); + + Listener->notify( + css::ucb::ListEvent( + static_cast< cppu::OWeakObject * >( this ), aActions ) ); +} + + +// virtual +sal_Int16 SAL_CALL ResultSetImplHelper::getCapabilities() +{ + // ! css::ucb::ContentResultSetCapability::SORTED + return 0; +} + + +// virtual +void SAL_CALL ResultSetImplHelper::connectToCache( + const uno::Reference< css::ucb::XDynamicResultSet > & xCache ) +{ + if ( m_xListener.is() ) + throw css::ucb::ListenerAlreadySetException(); + + if ( m_bStatic ) + throw css::ucb::ListenerAlreadySetException(); + + uno::Reference< css::ucb::XSourceInitialization > xTarget( xCache, uno::UNO_QUERY ); + if ( xTarget.is() ) + { + uno::Reference< css::ucb::XCachedDynamicResultSetStubFactory > xStubFactory; + try + { + xStubFactory + = css::ucb::CachedDynamicResultSetStubFactory::create( + m_xContext ); + } + catch ( uno::Exception const & ) + { + } + + if ( xStubFactory.is() ) + { + xStubFactory->connectToCache( + this, xCache, m_aCommand.SortingInfo, nullptr ); + return; + } + } + throw css::ucb::ServiceNotFoundException(); +} + + +// Non-interface methods. + + +void ResultSetImplHelper::init( bool bStatic ) +{ + if ( m_bInitDone ) + return; + + if ( bStatic ) + { + // virtual... derived class fills m_xResultSet1 + initStatic(); + + OSL_ENSURE( m_xResultSet1.is(), + "ResultSetImplHelper::init - No 1st result set!" ); + m_bStatic = true; + } + else + { + // virtual... derived class fills m_xResultSet1 and m_xResultSet2 + initDynamic(); + + OSL_ENSURE( m_xResultSet1.is(), + "ResultSetImplHelper::init - No 1st result set!" ); + OSL_ENSURE( m_xResultSet2.is(), + "ResultSetImplHelper::init - No 2nd result set!" ); + m_bStatic = false; + } + m_bInitDone = true; +} + +} // namespace ucbhelper + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |