362 lines
12 KiB
C++
362 lines
12 KiB
C++
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/*************************************************************************
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*
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* $RCSfile: component_context.cxx,v $
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*
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* $Revision: 1.1 $
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*
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* last change: $Author: dbo $ $Date: 2001-05-08 15:56:02 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef _OSL_DIAGNOSE_H_
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#include <osl/diagnose.h>
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#endif
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#ifndef _OSL_MUTEX_HXX_
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#include <osl/mutex.hxx>
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#endif
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#ifndef _CPPUHELPER_COMPBASE1_HXX
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#include <cppuhelper/compbase1.hxx>
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#endif
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#ifndef _CPPUHELPER_COMPONENT_CONTEXT_HXX
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#include <cppuhelper/component_context.hxx>
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#endif
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#include <com/sun/star/lang/XMultiComponentFactory.hpp>
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#include <com/sun/star/lang/XComponent.hpp>
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#include <com/sun/star/registry/XSimpleRegistry.hpp>
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#include <hash_map>
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using namespace ::osl;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star;
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namespace cppu
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{
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//==================================================================================================
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struct MutexHolder
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{
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Mutex m_mutex;
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};
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//==================================================================================================
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class ComponentContext
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: public MutexHolder
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, public WeakComponentImplHelper1< XComponentContext >
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{
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Reference< XComponentContext > m_xDelegate;
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struct ContextEntry
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{
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bool bLateInitService;
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Any value;
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inline ContextEntry( bool bLateInitService_, Any const & value_ )
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: bLateInitService( bLateInitService_ )
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, value( value_ )
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{}
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};
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typedef ::std::hash_map< OUString, ContextEntry *, OUStringHash > t_map;
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t_map m_map;
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Reference< lang::XMultiComponentFactory > m_xSMgr;
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protected:
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virtual void SAL_CALL disposing();
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public:
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ComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< XComponentContext > const & xDelegate )
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SAL_THROW( () );
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ComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< registry::XSimpleRegistry > const & xRegistry )
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SAL_THROW( () );
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virtual ~ComponentContext();
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// XComponentContext
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virtual Any SAL_CALL getValueByName( OUString const & rName )
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throw (RuntimeException);
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virtual Reference< lang::XMultiComponentFactory > SAL_CALL getServiceManager()
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throw (RuntimeException);
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};
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//__________________________________________________________________________________________________
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Any ComponentContext::getValueByName( OUString const & rName )
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throw (RuntimeException)
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{
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/** map is anytime untouched, if an uninit value will be inited, synch is done on mutex.
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*/
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t_map::const_iterator const iFind( m_map.find( rName ) );
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if (iFind != m_map.end())
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{
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ContextEntry * pEntry = iFind->second;
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if (pEntry->bLateInitService)
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{
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try
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{
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Reference< XInterface > xInstance;
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Reference< lang::XSingleComponentFactory > xFac;
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if (pEntry->value >>= xFac) // try via factory
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{
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xInstance = xFac->createInstanceWithContext( this );
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}
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else // optionally service name
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{
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OUString aServiceName;
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if ((pEntry->value >>= aServiceName) && aServiceName.getLength())
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{
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if (m_xSMgr.is())
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{
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xInstance = m_xSMgr->createInstanceWithContext( aServiceName, this );
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}
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#ifdef _DEBUG
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else
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{
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OSL_TRACE( "### no service manager given for instanciating singletons!" );
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}
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#endif
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}
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}
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if (xInstance.is())
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{
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ClearableMutexGuard aGuard( m_mutex );
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if (! pEntry->bLateInitService) // inited in the meantime?
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{
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aGuard.clear();
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// service has entered the context in the meantime
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// => try to dispose this one
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Reference< lang::XComponent > xComp( xInstance, UNO_QUERY );
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if (xComp.is())
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{
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xComp->dispose();
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}
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}
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else
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{
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pEntry->value = makeAny( xInstance );
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pEntry->bLateInitService = false;
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}
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return pEntry->value;
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}
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else
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{
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OString aStr( OUStringToOString( rName, RTL_TEXTENCODING_ASCII_US ) );
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OSL_TRACE( "### cannot raise singleton: $s\n", aStr.getStr() );
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}
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}
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catch (Exception & rExc)
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{
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#ifdef _DEBUG
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OString aStr( OUStringToOString( rName, RTL_TEXTENCODING_ASCII_US ) );
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OString aStr2( OUStringToOString( rExc.Message, RTL_TEXTENCODING_ASCII_US ) );
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OSL_TRACE( "### exception occured raising singleton %s: %s\n", aStr.getStr(), aStr2.getStr() );
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#endif
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}
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}
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else
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{
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return pEntry->value;
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}
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return Any(); // error occured
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}
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if (m_xDelegate.is())
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{
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return m_xDelegate->getValueByName( rName );
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}
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return Any();
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}
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//__________________________________________________________________________________________________
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Reference< lang::XMultiComponentFactory > ComponentContext::getServiceManager()
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throw (RuntimeException)
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{
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return m_xSMgr;
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}
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//__________________________________________________________________________________________________
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ComponentContext::~ComponentContext()
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{
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}
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//__________________________________________________________________________________________________
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void ComponentContext::disposing()
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{
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MutexGuard aGuard( m_mutex );
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for ( t_map::const_iterator iPos( m_map.begin() ); iPos != m_map.end(); ++iPos )
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{
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ContextEntry * pEntry = iPos->second;
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Reference< lang::XComponent > xComp;
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pEntry->value >>= xComp;
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delete pEntry;
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if (xComp.is())
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{
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xComp->dispose();
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}
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}
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m_map.clear();
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// dispose service manager
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Reference< lang::XComponent > xComp( m_xSMgr, UNO_QUERY );
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if (xComp.is())
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{
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xComp->dispose();
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}
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}
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//__________________________________________________________________________________________________
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ComponentContext::ComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< XComponentContext > const & xDelegate )
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SAL_THROW( () )
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: WeakComponentImplHelper1< XComponentContext >( m_mutex )
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, m_xDelegate( xDelegate )
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{
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while (nEntries--)
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{
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ContextEntry_Init const & rEntry = pEntries[ nEntries ];
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if (rEntry.name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM("com.sun.star.lang.ServiceManager") ))
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{
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if (rEntry.value >>= m_xSMgr)
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continue;
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}
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m_map[ rEntry.name ] = new ContextEntry( rEntry.bLateInitService, rEntry.value );
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}
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if (!m_xSMgr.is() && m_xDelegate.is())
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{
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m_xSMgr = m_xDelegate->getServiceManager();
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}
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}
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//__________________________________________________________________________________________________
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ComponentContext::ComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< registry::XSimpleRegistry > const & xRegistry )
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SAL_THROW( () )
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: WeakComponentImplHelper1< XComponentContext >( m_mutex )
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{
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// inited values
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while (nEntries--)
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{
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ContextEntry_Init const & rEntry = pEntries[ nEntries ];
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if (rEntry.name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM("com.sun.star.lang.ServiceManager") ))
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{
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if (rEntry.value >>= m_xSMgr)
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continue;
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}
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m_map[ rEntry.name ] = new ContextEntry( rEntry.bLateInitService, rEntry.value );
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}
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// late init singleton services
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if (xRegistry.is())
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{
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Reference< registry::XRegistryKey > xKey( xRegistry->getRootKey() );
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if (xKey.is())
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{
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xKey = xKey->openKey( OUString( RTL_CONSTASCII_USTRINGPARAM("/SINGLETONS") ) );
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if (xKey.is())
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{
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Sequence< Reference< registry::XRegistryKey > > keys( xKey->openKeys() );
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Reference< registry::XRegistryKey > const * pKeys = keys.getConstArray();
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for ( sal_Int32 nPos = keys.getLength(); nPos--; )
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{
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try
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{
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Reference< registry::XRegistryKey > const & xKey = pKeys[ nPos ];
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m_map[ xKey->getKeyName().copy( 11 ) ] =
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new ContextEntry( true, makeAny( xKey->getAsciiValue() ) );
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}
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catch (Exception & rExc)
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{
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#ifdef _DEBUG
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OString aStr( OUStringToOString( xKey->getKeyName().copy( 11 ), RTL_TEXTENCODING_ASCII_US ) );
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OString aStr2( OUStringToOString( rExc.Message, RTL_TEXTENCODING_ASCII_US ) );
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OSL_TRACE( "### failed reading singleton [%s] service name from registry: %s", aStr.getStr(), aStr2.getStr() );
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#endif
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}
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}
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}
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}
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}
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}
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//==================================================================================================
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Reference< XComponentContext > SAL_CALL createInitialComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< registry::XSimpleRegistry > const & xRegistry )
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SAL_THROW( () )
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{
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return new ComponentContext( pEntries, nEntries, xRegistry );
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}
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//##################################################################################################
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Reference< XComponentContext > SAL_CALL createComponentContext(
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ContextEntry_Init const * pEntries, sal_Int32 nEntries,
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Reference< XComponentContext > const & xDelegate )
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SAL_THROW( () )
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{
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return new ComponentContext( pEntries, nEntries, xDelegate );
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}
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}
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