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Diffstat (limited to 'comphelper/source/misc/officeresourcebundle.cxx')
| -rw-r--r-- | comphelper/source/misc/officeresourcebundle.cxx | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/comphelper/source/misc/officeresourcebundle.cxx b/comphelper/source/misc/officeresourcebundle.cxx new file mode 100644 index 000000000000..cbe5b0dc2659 --- /dev/null +++ b/comphelper/source/misc/officeresourcebundle.cxx @@ -0,0 +1,240 @@ +/************************************************************************* + * + * 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/officeresourcebundle.hxx> + +/** === begin UNO includes === **/ +#include <com/sun/star/resource/XResourceBundle.hpp> +#include <com/sun/star/resource/XResourceBundleLoader.hpp> +#include <com/sun/star/lang/NullPointerException.hpp> +/** === end UNO includes === **/ +#include <osl/mutex.hxx> +#include <osl/diagnose.h> +#include <rtl/ustrbuf.hxx> + +//........................................................................ +namespace comphelper +{ +//........................................................................ + + /** === begin UNO using === **/ + using ::com::sun::star::uno::Reference; + using com::sun::star::resource::XResourceBundle; + using com::sun::star::resource::XResourceBundleLoader; + using com::sun::star::resource::MissingResourceException; + using ::com::sun::star::uno::XComponentContext; + using ::com::sun::star::lang::NullPointerException; + using ::com::sun::star::uno::UNO_QUERY; + using ::com::sun::star::uno::Exception; + using ::com::sun::star::uno::Any; + /** === end UNO using === **/ + + //==================================================================== + //= ResourceBundle_Impl + //==================================================================== + class ResourceBundle_Impl + { + private: + Reference< XComponentContext > m_xContext; + ::rtl::OUString m_sBaseName; + Reference< XResourceBundle > m_xBundle; + bool m_bAttemptedCreate; + mutable ::osl::Mutex m_aMutex; + + public: + ResourceBundle_Impl( const Reference< XComponentContext >& _context, const ::rtl::OUString& _baseName ) + :m_xContext( _context ) + ,m_sBaseName( _baseName ) + ,m_bAttemptedCreate( false ) + { + } + + public: + /** loads the string with the given resource id from the resource bundle + @param _resourceId + the id of the string to load + @return + the requested resource string. If no string with the given id exists in the resource bundle, + an empty string is returned. In a non-product version, an OSL_ENSURE will notify you of this + then. + */ + ::rtl::OUString loadString( sal_Int32 _resourceId ) const; + + /** determines whether the resource bundle has a string with the given id + @param _resourceId + the id of the string whose existence is to be checked + @return + <TRUE/> if and only if a string with the given ID exists in the resource + bundle. + */ + bool hasString( sal_Int32 _resourceId ) const; + + private: + /** loads the bundle represented by the instance + + The method is safe against multiple calls: If a previos call succeeded or failed, the + previous result will be returned, without any other processing. + + @precond + Our mutex is locked. + */ + bool impl_loadBundle_nothrow(); + + /** returns the resource bundle key for a string with a given resource id + */ + static ::rtl::OUString + impl_getStringResourceKey( sal_Int32 _resourceId ); + }; + + //-------------------------------------------------------------------- + ::rtl::OUString ResourceBundle_Impl::impl_getStringResourceKey( sal_Int32 _resourceId ) + { + ::rtl::OUStringBuffer key; + key.appendAscii( "string:" ); + key.append( _resourceId ); + return key.makeStringAndClear(); + } + + //-------------------------------------------------------------------- + ::rtl::OUString ResourceBundle_Impl::loadString( sal_Int32 _resourceId ) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + ::rtl::OUString sString; + + if ( const_cast< ResourceBundle_Impl* >( this )->impl_loadBundle_nothrow() ) + { + try + { + OSL_VERIFY( m_xBundle->getByName( impl_getStringResourceKey( _resourceId ) ) >>= sString ); + } + catch( const Exception& ) + { + OSL_ENSURE( false, "ResourceBundle_Impl::loadString: caught an exception!" ); + } + } + return sString; + } + + //-------------------------------------------------------------------- + bool ResourceBundle_Impl::hasString( sal_Int32 _resourceId ) const + { + ::osl::MutexGuard aGuard( m_aMutex ); + + bool has = false; + + if ( const_cast< ResourceBundle_Impl* >( this )->impl_loadBundle_nothrow() ) + { + try + { + has = m_xBundle->hasByName( impl_getStringResourceKey( _resourceId ) ); + } + catch( const Exception& ) + { + OSL_ENSURE( false, "ResourceBundle_Impl::hasString: caught an exception!" ); + } + } + return has; + } + + //-------------------------------------------------------------------- + bool ResourceBundle_Impl::impl_loadBundle_nothrow() + { + if ( m_bAttemptedCreate ) + return m_xBundle.is(); + + m_bAttemptedCreate = true; + + Reference< XResourceBundleLoader > xLoader; + try + { + Any aValue( m_xContext->getValueByName( + ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( + "/singletons/com.sun.star.resource.OfficeResourceLoader" ) ) ) ); + OSL_VERIFY( aValue >>= xLoader ); + } + catch( const Exception& ) + { + OSL_ENSURE( false, "ResourceBundle_Impl::impl_loadBundle_nopthrow: could not create the resource loader!" ); + } + + if ( !xLoader.is() ) + return false; + + try + { + m_xBundle = xLoader->loadBundle_Default( m_sBaseName ); + } + catch( const MissingResourceException& ) + { + OSL_ENSURE( false, "ResourceBundle_Impl::impl_loadBundle_nopthrow: missing the given resource bundle!" ); + } + + return m_xBundle.is(); + } + + //==================================================================== + //= OfficeResourceBundle + //==================================================================== + //-------------------------------------------------------------------- + OfficeResourceBundle::OfficeResourceBundle( const Reference< XComponentContext >& _context, const ::rtl::OUString& _bundleBaseName ) + :m_pImpl( new ResourceBundle_Impl( _context, _bundleBaseName ) ) + { + if ( !_context.is() ) + throw NullPointerException(); + } + + //-------------------------------------------------------------------- + OfficeResourceBundle::OfficeResourceBundle( const Reference< XComponentContext >& _context, const sal_Char* _bundleBaseAsciiName ) + :m_pImpl( new ResourceBundle_Impl( _context, ::rtl::OUString::createFromAscii( _bundleBaseAsciiName ) ) ) + { + if ( !_context.is() ) + throw NullPointerException(); + } + + //-------------------------------------------------------------------- + OfficeResourceBundle::~OfficeResourceBundle() + { + } + + //-------------------------------------------------------------------- + ::rtl::OUString OfficeResourceBundle::loadString( sal_Int32 _resourceId ) const + { + return m_pImpl->loadString( _resourceId ); + } + + //-------------------------------------------------------------------- + bool OfficeResourceBundle::hasString( sal_Int32 _resourceId ) const + { + return m_pImpl->hasString( _resourceId ); + } + +//........................................................................ +} // namespace comphelper +//........................................................................ |