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Diffstat (limited to 'comphelper/source/misc/legacysingletonfactory.cxx')
| -rw-r--r-- | comphelper/source/misc/legacysingletonfactory.cxx | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/comphelper/source/misc/legacysingletonfactory.cxx b/comphelper/source/misc/legacysingletonfactory.cxx new file mode 100644 index 000000000000..cfc1793e7db2 --- /dev/null +++ b/comphelper/source/misc/legacysingletonfactory.cxx @@ -0,0 +1,197 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_comphelper.hxx" + +#include "comphelper/legacysingletonfactory.hxx" + +/** === begin UNO includes === **/ +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/lang/XInitialization.hpp> +/** === end UNO includes === **/ + +#include <cppuhelper/implbase2.hxx> + +#include <algorithm> + +//........................................................................ +namespace comphelper +{ +//........................................................................ + + /** === begin UNO using === **/ + using ::com::sun::star::uno::Reference; + using ::com::sun::star::uno::XInterface; + using ::com::sun::star::uno::UNO_QUERY; + using ::com::sun::star::uno::UNO_QUERY_THROW; + using ::com::sun::star::uno::UNO_SET_THROW; + using ::com::sun::star::uno::Exception; + using ::com::sun::star::uno::RuntimeException; + using ::com::sun::star::uno::Any; + using ::com::sun::star::uno::makeAny; + using ::com::sun::star::lang::XSingleComponentFactory; + using ::com::sun::star::uno::Sequence; + using ::com::sun::star::uno::XComponentContext; + using ::com::sun::star::lang::XServiceInfo; + using ::com::sun::star::lang::XInitialization; + /** === end UNO using === **/ + + //==================================================================== + //= LegacySingletonFactory + //==================================================================== + typedef ::cppu::WeakImplHelper2 < XServiceInfo + , XSingleComponentFactory + > LegacySingletonFactory_Base; + + class COMPHELPER_DLLPRIVATE LegacySingletonFactory : public LegacySingletonFactory_Base + { + public: + LegacySingletonFactory( + ::cppu::ComponentFactoryFunc _componentFactoryFunc, const ::rtl::OUString& _rImplementationName, + const Sequence< ::rtl::OUString >& _rServiceNames, rtl_ModuleCount* _pModCount + ); + + // XServiceInfo + virtual ::rtl::OUString SAL_CALL getImplementationName( ) throw (RuntimeException); + virtual ::sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (RuntimeException); + virtual Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames( ) throw (RuntimeException); + + // XSingleComponentFactory + virtual Reference< XInterface > SAL_CALL createInstanceWithContext( const Reference< XComponentContext >& Context ) throw (Exception, RuntimeException); + virtual Reference< XInterface > SAL_CALL createInstanceWithArgumentsAndContext( const Sequence< Any >& Arguments, const Reference< XComponentContext >& Context ) throw (Exception, RuntimeException); + + protected: + ~LegacySingletonFactory(); + + private: + /** creates m_xInstance, returns whether it actually was created (<TRUE/>) or existed before (<FALSE/> + */ + bool impl_nts_ensureInstance( const Reference< XComponentContext >& _rxContext ); + + private: + ::osl::Mutex m_aMutex; + ::cppu::ComponentFactoryFunc m_componentFactoryFunc; + ::rtl::OUString m_sImplementationName; + Sequence< ::rtl::OUString > m_aServiceNames; + rtl_ModuleCount* m_pModuleCount; + Reference< XInterface > m_xTheInstance; + }; + + //-------------------------------------------------------------------- + LegacySingletonFactory::LegacySingletonFactory( ::cppu::ComponentFactoryFunc _componentFactoryFunc, const ::rtl::OUString& _rImplementationName, + const Sequence< ::rtl::OUString >& _rServiceNames, rtl_ModuleCount* _pModCount ) + :m_componentFactoryFunc ( _componentFactoryFunc ) + ,m_sImplementationName ( _rImplementationName ) + ,m_aServiceNames ( _rServiceNames ) + ,m_pModuleCount ( _pModCount ) + ,m_xTheInstance ( ) + { + if ( m_pModuleCount ) + m_pModuleCount->acquire( m_pModuleCount ); + } + + //-------------------------------------------------------------------- + LegacySingletonFactory::~LegacySingletonFactory() + { + if ( m_pModuleCount ) + m_pModuleCount->release( m_pModuleCount ); + } + + //-------------------------------------------------------------------- + ::rtl::OUString SAL_CALL LegacySingletonFactory::getImplementationName( ) throw (RuntimeException) + { + return m_sImplementationName; + } + + //-------------------------------------------------------------------- + ::sal_Bool SAL_CALL LegacySingletonFactory::supportsService( const ::rtl::OUString& _rServiceName ) throw (RuntimeException) + { + Sequence< ::rtl::OUString > aServices( getSupportedServiceNames() ); + const ::rtl::OUString* pStart = aServices.getConstArray(); + const ::rtl::OUString* pEnd = aServices.getConstArray() + aServices.getLength(); + return ::std::find( pStart, pEnd, _rServiceName ) != pEnd; + } + + //-------------------------------------------------------------------- + Sequence< ::rtl::OUString > SAL_CALL LegacySingletonFactory::getSupportedServiceNames( ) throw (RuntimeException) + { + return m_aServiceNames; + } + + //-------------------------------------------------------------------- + bool LegacySingletonFactory::impl_nts_ensureInstance( const Reference< XComponentContext >& _rxContext ) + { + if ( m_xTheInstance.is() ) + return false; + + m_xTheInstance = (*m_componentFactoryFunc)( _rxContext ); + if ( !m_xTheInstance.is() ) + throw RuntimeException(); + + return true; // true -> "was newly created" + } + + //-------------------------------------------------------------------- + Reference< XInterface > SAL_CALL LegacySingletonFactory::createInstanceWithContext( const Reference< XComponentContext >& _rxContext ) throw (Exception, RuntimeException) + { + ::osl::MutexGuard aGuard( m_aMutex ); + impl_nts_ensureInstance( _rxContext ); + + return m_xTheInstance; + } + + //-------------------------------------------------------------------- + Reference< XInterface > SAL_CALL LegacySingletonFactory::createInstanceWithArgumentsAndContext( const Sequence< Any >& _rArguments, const Reference< XComponentContext >& _rxContext ) throw (Exception, RuntimeException) + { + ::osl::MutexGuard aGuard( m_aMutex ); + if ( !impl_nts_ensureInstance( _rxContext ) ) + throw RuntimeException( + ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Instance already created before, unable to initialize it." ) ), + *this + ); + + Reference< XInitialization > xInit( m_xTheInstance, UNO_QUERY_THROW ); + xInit->initialize( _rArguments ); + + return m_xTheInstance; + } + + //==================================================================== + //= createLegacySingletonFactory + //==================================================================== + Reference< XSingleComponentFactory > createLegacySingletonFactory( + ::cppu::ComponentFactoryFunc _componentFactoryFunc, const ::rtl::OUString& _rImplementationName, + const Sequence< ::rtl::OUString >& _rServiceNames, rtl_ModuleCount* _pModCount ) + { + return new LegacySingletonFactory( _componentFactoryFunc, _rImplementationName, _rServiceNames, _pModCount ); + } + + +//........................................................................ +} // namespace comphelper +//........................................................................ |