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Diffstat (limited to '')
-rw-r--r-- | dbaccess/source/shared/registrationhelper.cxx | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/dbaccess/source/shared/registrationhelper.cxx b/dbaccess/source/shared/registrationhelper.cxx new file mode 100644 index 000000000..2c9fbc1f1 --- /dev/null +++ b/dbaccess/source/shared/registrationhelper.cxx @@ -0,0 +1,152 @@ +/* -*- 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 . + */ + +// be included in other cxx files + +#ifndef REGISTRATIONHELPER_CXX_INCLUDED_INDIRECTLY_ +#error "don't build this file directly! use dbu_reghelper.cxx instead!" +#endif + +using namespace ::com::sun::star; +using namespace ::comphelper; +using namespace ::cppu; + +uno::Sequence< OUString >* OModuleRegistration::s_pImplementationNames = nullptr; +uno::Sequence< uno::Sequence< OUString > >* OModuleRegistration::s_pSupportedServices = nullptr; +uno::Sequence< sal_Int64 >* OModuleRegistration::s_pCreationFunctionPointers = nullptr; +uno::Sequence< sal_Int64 >* OModuleRegistration::s_pFactoryFunctionPointers = nullptr; + +void OModuleRegistration::registerComponent( + const OUString& _rImplementationName, + const uno::Sequence< OUString >& _rServiceNames, + ComponentInstantiation _pCreateFunction, + FactoryInstantiation _pFactoryFunction) +{ + if (!s_pImplementationNames) + { + OSL_ENSURE(!s_pSupportedServices && !s_pCreationFunctionPointers && !s_pFactoryFunctionPointers, + "OModuleRegistration::registerComponent : inconsistent state (the pointers (1)) !"); + s_pImplementationNames = new uno::Sequence< OUString >; + s_pSupportedServices = new uno::Sequence< uno::Sequence< OUString > >; + s_pCreationFunctionPointers = new uno::Sequence< sal_Int64 >; + s_pFactoryFunctionPointers = new uno::Sequence< sal_Int64 >; + } + OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers, + "OModuleRegistration::registerComponent : inconsistent state (the pointers (2)) !"); + + OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength()) + && (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength()) + && (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()), + "OModuleRegistration::registerComponent : inconsistent state !"); + + sal_Int32 nOldLen = s_pImplementationNames->getLength(); + s_pImplementationNames->realloc(nOldLen + 1); + s_pSupportedServices->realloc(nOldLen + 1); + s_pCreationFunctionPointers->realloc(nOldLen + 1); + s_pFactoryFunctionPointers->realloc(nOldLen + 1); + + s_pImplementationNames->getArray()[nOldLen] = _rImplementationName; + s_pSupportedServices->getArray()[nOldLen] = _rServiceNames; + s_pCreationFunctionPointers->getArray()[nOldLen] = reinterpret_cast<sal_Int64>(_pCreateFunction); + s_pFactoryFunctionPointers->getArray()[nOldLen] = reinterpret_cast<sal_Int64>(_pFactoryFunction); +} + +void OModuleRegistration::revokeComponent(const OUString& _rImplementationName) +{ + if (!s_pImplementationNames) + { + OSL_FAIL("OModuleRegistration::revokeComponent : have no class infos ! Are you sure called this method at the right time ?"); + return; + } + OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers, + "OModuleRegistration::revokeComponent : inconsistent state (the pointers) !"); + OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength()) + && (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength()) + && (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()), + "OModuleRegistration::revokeComponent : inconsistent state !"); + + sal_Int32 nLen = s_pImplementationNames->getLength(); + const OUString* pImplNames = s_pImplementationNames->getConstArray(); + for (sal_Int32 i=0; i<nLen; ++i, ++pImplNames) + { + if (*pImplNames == _rImplementationName) + { + removeElementAt(*s_pImplementationNames, i); + removeElementAt(*s_pSupportedServices, i); + removeElementAt(*s_pCreationFunctionPointers, i); + removeElementAt(*s_pFactoryFunctionPointers, i); + break; + } + } + + if (s_pImplementationNames->getLength() == 0) + { + delete s_pImplementationNames; s_pImplementationNames = nullptr; + delete s_pSupportedServices; s_pSupportedServices = nullptr; + delete s_pCreationFunctionPointers; s_pCreationFunctionPointers = nullptr; + delete s_pFactoryFunctionPointers; s_pFactoryFunctionPointers = nullptr; + } +} + +uno::Reference< uno::XInterface > OModuleRegistration::getComponentFactory( + const OUString& _rImplementationName, + const uno::Reference< lang::XMultiServiceFactory >& _rxServiceManager) +{ + OSL_ENSURE(_rxServiceManager.is(), "OModuleRegistration::getComponentFactory : invalid argument (service manager) !"); + OSL_ENSURE(!_rImplementationName.isEmpty(), "OModuleRegistration::getComponentFactory : invalid argument (implementation name) !"); + + if (!s_pImplementationNames) + { + OSL_FAIL("OModuleRegistration::getComponentFactory : have no class infos ! Are you sure called this method at the right time ?"); + return nullptr; + } + OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers, + "OModuleRegistration::getComponentFactory : inconsistent state (the pointers) !"); + OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength()) + && (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength()) + && (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()), + "OModuleRegistration::getComponentFactory : inconsistent state !"); + + uno::Reference< uno::XInterface > xReturn; + + sal_Int32 nLen = s_pImplementationNames->getLength(); + const OUString* pImplName = s_pImplementationNames->getConstArray(); + const uno::Sequence< OUString >* pServices = s_pSupportedServices->getConstArray(); + const sal_Int64* pComponentFunction = s_pCreationFunctionPointers->getConstArray(); + const sal_Int64* pFactoryFunction = s_pFactoryFunctionPointers->getConstArray(); + + for (sal_Int32 i=0; i<nLen; ++i, ++pImplName, ++pServices, ++pComponentFunction, ++pFactoryFunction) + { + if (*pImplName == _rImplementationName) + { + const FactoryInstantiation FactoryInstantiationFunction = reinterpret_cast<FactoryInstantiation>(*pFactoryFunction); + const ComponentInstantiation ComponentInstantiationFunction = reinterpret_cast<ComponentInstantiation>(*pComponentFunction); + + xReturn = FactoryInstantiationFunction( _rxServiceManager, *pImplName, ComponentInstantiationFunction, *pServices, nullptr); + if (xReturn.is()) + { + return xReturn.get(); + } + } + } + + return nullptr; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |