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libreoffice/ucb/source/sorter/sortdynres.cxx
Rüdiger Timm 66c3be9598 INTEGRATION: CWS ooo19126 (1.7.272); FILE MERGED
2005/09/05 18:44:57 rt 1.7.272.1: #i54170# Change license header: remove SISSL
2005-09-09 14:20:02 +00:00

648 lines
21 KiB
C++

/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: sortdynres.cxx,v $
*
* $Revision: 1.8 $
*
* last change: $Author: rt $ $Date: 2005-09-09 15:20:02 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#include <vector>
#include <sortdynres.hxx>
#ifndef _CPPUHELPER_INTERFACECONTAINER_HXX_
#include <cppuhelper/interfacecontainer.hxx>
#endif
#ifndef _COM_SUN_STAR_UCB_CONTENTRESULTSETCAPABILITY_HPP_
#include <com/sun/star/ucb/ContentResultSetCapability.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_LISTACTIONTYPE_HPP_
#include <com/sun/star/ucb/ListActionType.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_WELCOMEDYNAMICRESULTSETSTRUCT_HPP_
#include <com/sun/star/ucb/WelcomeDynamicResultSetStruct.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_XCACHEDDYNAMICRESULTSETSTUBFACTORY_HPP_
#include <com/sun/star/ucb/XCachedDynamicResultSetStubFactory.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_XSOURCEINITIALIZATION_HPP_
#include <com/sun/star/ucb/XSourceInitialization.hpp>
#endif
//-----------------------------------------------------------------------------
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::ucb;
using namespace com::sun::star::uno;
using namespace cppu;
using namespace rtl;
//=========================================================================
// The mutex to synchronize access to containers.
static osl::Mutex& getContainerMutex()
{
static osl::Mutex* pMutex = NULL;
if( !pMutex )
{
osl::Guard< osl::Mutex > aGuard( osl::Mutex::getGlobalMutex() );
if( !pMutex )
{
static osl::Mutex aMutex;
pMutex = &aMutex;
}
}
return *pMutex;
}
//=========================================================================
//
// SortedDynamicResultSet
//
//=========================================================================
SortedDynamicResultSet::SortedDynamicResultSet(
const Reference < XDynamicResultSet > &xOriginal,
const Sequence < NumberedSortingInfo > &aOptions,
const Reference < XAnyCompareFactory > &xCompFac,
const Reference < XMultiServiceFactory > &xSMgr )
{
mpDisposeEventListeners = NULL;
mpOwnListener = new SortedDynamicResultSetListener( this );
mxOwnListener = Reference< XDynamicResultSetListener >( mpOwnListener );
mxOriginal = xOriginal;
maOptions = aOptions;
mxCompFac = xCompFac;
mxSMgr = xSMgr;
mpOne = NULL;
mpTwo = NULL;
mbGotWelcome = sal_False;
mbUseOne = sal_True;
mbStatic = sal_False;
}
//--------------------------------------------------------------------------
SortedDynamicResultSet::~SortedDynamicResultSet()
{
mpOwnListener->impl_OwnerDies();
mxOwnListener.clear();
delete mpDisposeEventListeners;
mxOne.clear();
mxTwo.clear();
mxOriginal.clear();
mpOne = NULL;
mpTwo = NULL;
}
//--------------------------------------------------------------------------
// XInterface methods.
//--------------------------------------------------------------------------
XINTERFACE_IMPL_4( SortedDynamicResultSet,
XTypeProvider,
XServiceInfo,
XComponent, /* base class of XDynamicResultSet */
XDynamicResultSet );
//--------------------------------------------------------------------------
// XTypeProvider methods.
//--------------------------------------------------------------------------
XTYPEPROVIDER_IMPL_3( SortedDynamicResultSet,
XTypeProvider,
XServiceInfo,
XDynamicResultSet );
//--------------------------------------------------------------------------
// XServiceInfo methods.
//--------------------------------------------------------------------------
XSERVICEINFO_NOFACTORY_IMPL_1( SortedDynamicResultSet,
OUString::createFromAscii(
"com.sun.star.comp.ucb.SortedDynamicResultSet" ),
OUString::createFromAscii(
DYNAMIC_RESULTSET_SERVICE_NAME ) );
//--------------------------------------------------------------------------
// XComponent methods.
//--------------------------------------------------------------------------
void SAL_CALL SortedDynamicResultSet::dispose()
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mpDisposeEventListeners && mpDisposeEventListeners->getLength() )
{
EventObject aEvt;
aEvt.Source = static_cast< XComponent * >( this );
mpDisposeEventListeners->disposeAndClear( aEvt );
}
mxOne.clear();
mxTwo.clear();
mxOriginal.clear();
mpOne = NULL;
mpTwo = NULL;
mbUseOne = sal_True;
}
//--------------------------------------------------------------------------
void SAL_CALL SortedDynamicResultSet::addEventListener(
const Reference< XEventListener >& Listener )
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( !mpDisposeEventListeners )
mpDisposeEventListeners =
new OInterfaceContainerHelper( getContainerMutex() );
mpDisposeEventListeners->addInterface( Listener );
}
//--------------------------------------------------------------------------
void SAL_CALL SortedDynamicResultSet::removeEventListener(
const Reference< XEventListener >& Listener )
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mpDisposeEventListeners )
mpDisposeEventListeners->removeInterface( Listener );
}
//--------------------------------------------------------------------------
// XDynamicResultSet methods.
// ------------------------------------------------------------------------------
Reference< XResultSet > SAL_CALL
SortedDynamicResultSet::getStaticResultSet()
throw( ListenerAlreadySetException, RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mxListener.is() )
throw ListenerAlreadySetException();
mbStatic = sal_True;
if ( mxOriginal.is() )
{
mpOne = new SortedResultSet( mxOriginal->getStaticResultSet() );
mxOne = mpOne;
mpOne->Initialize( maOptions, mxCompFac );
}
return mxOne;
}
// ------------------------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSet::setListener( const Reference< XDynamicResultSetListener >& Listener )
throw( ListenerAlreadySetException, RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mxListener.is() )
throw ListenerAlreadySetException();
addEventListener( Reference< XEventListener >::query( Listener ) );
mxListener = Listener;
if ( mxOriginal.is() )
mxOriginal->setListener( mxOwnListener );
}
// ------------------------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSet::connectToCache(
const Reference< XDynamicResultSet > & xCache )
throw( ListenerAlreadySetException,
AlreadyInitializedException,
ServiceNotFoundException,
RuntimeException )
{
if( mxListener.is() )
throw ListenerAlreadySetException();
if( mbStatic )
throw ListenerAlreadySetException();
Reference< XSourceInitialization > xTarget( xCache, UNO_QUERY );
if( xTarget.is() && mxSMgr.is() )
{
Reference< XCachedDynamicResultSetStubFactory > xStubFactory;
try
{
xStubFactory = Reference< XCachedDynamicResultSetStubFactory >(
mxSMgr->createInstance(
OUString::createFromAscii(
"com.sun.star.ucb.CachedDynamicResultSetStubFactory" ) ),
UNO_QUERY );
}
catch ( Exception const & )
{
}
if( xStubFactory.is() )
{
xStubFactory->connectToCache(
this, xCache, Sequence< NumberedSortingInfo > (), NULL );
return;
}
}
throw ServiceNotFoundException();
}
// ------------------------------------------------------------------------------
sal_Int16 SAL_CALL
SortedDynamicResultSet::getCapabilities()
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
sal_Int16 nCaps = 0;
if ( mxOriginal.is() )
nCaps = mxOriginal->getCapabilities();
nCaps |= ContentResultSetCapability::SORTED;
return nCaps;
}
//--------------------------------------------------------------------------
// XDynamicResultSetListener methods.
// ------------------------------------------------------------------------------
/** In the first notify-call the listener gets the two
<type>XResultSet</type>s and has to hold them. The <type>XResultSet</type>s
are implementations of the service <type>ContentResultSet</type>.
<p>The notified new <type>XResultSet</type> will stay valid after returning
notification. The old one will become invalid after returning notification.
<p>While in notify-call the listener is allowed to read old and new version,
except in the first call, where only the new Resultset is valid.
<p>The Listener is allowed to blockade this call, until he really want to go
to the new version. The only situation, where the listener has to return the
update call at once is, while he disposes his broadcaster or while he is
removing himsef as listener (otherwise you deadlock)!!!
*/
void SAL_CALL
SortedDynamicResultSet::impl_notify( const ListEvent& Changes )
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
sal_Bool bHasNew = sal_False;
sal_Bool bHasModified = sal_False;
SortedResultSet *pCurSet = NULL;
// mxNew und mxOld vertauschen und anschliessend die Tabellen von Old
// nach New kopieren
if ( mbGotWelcome )
{
if ( mbUseOne )
{
mbUseOne = sal_False;
mpTwo->CopyData( mpOne );
pCurSet = mpTwo;
}
else
{
mbUseOne = sal_True;
mpOne->CopyData( mpTwo );
pCurSet = mpOne;
}
}
Any aRet;
try {
aRet = pCurSet->getPropertyValue( OUString::createFromAscii( "IsRowCountFinal" ) );
}
catch ( UnknownPropertyException ) {}
catch ( WrappedTargetException ) {}
long nOldCount = pCurSet->GetCount();
sal_Bool bWasFinal;
aRet >>= bWasFinal;
// handle the actions in the list
for ( long i=0; i<Changes.Changes.getLength(); i++ )
{
const ListAction aAction = Changes.Changes[i];
switch ( aAction.ListActionType )
{
case ListActionType::WELCOME:
{
WelcomeDynamicResultSetStruct aWelcome;
if ( aAction.ActionInfo >>= aWelcome )
{
mpTwo = new SortedResultSet( aWelcome.Old );
mxTwo = mpTwo;
mpOne = new SortedResultSet( aWelcome.New );
mxOne = mpOne;
mpOne->Initialize( maOptions, mxCompFac );
mbGotWelcome = sal_True;
mbUseOne = sal_True;
pCurSet = mpOne;
aWelcome.Old = mxTwo;
aWelcome.New = mxOne;
ListAction *pWelcomeAction = new ListAction;
pWelcomeAction->ActionInfo <<= aWelcome;
pWelcomeAction->Position = 0;
pWelcomeAction->Count = 0;
pWelcomeAction->ListActionType = ListActionType::WELCOME;
maActions.Insert( pWelcomeAction );
}
else
{
// throw RuntimeException();
}
break;
}
case ListActionType::INSERTED:
{
pCurSet->InsertNew( aAction.Position, aAction.Count );
bHasNew = sal_True;
break;
}
case ListActionType::REMOVED:
{
pCurSet->Remove( aAction.Position,
aAction.Count,
&maActions );
break;
}
case ListActionType::MOVED:
{
long nOffset;
if ( aAction.ActionInfo >>= nOffset )
{
pCurSet->Move( aAction.Position,
aAction.Count,
nOffset );
}
break;
}
case ListActionType::PROPERTIES_CHANGED:
{
pCurSet->SetChanged( aAction.Position, aAction.Count );
bHasModified = sal_True;
break;
}
default: break;
}
}
if ( bHasModified )
pCurSet->ResortModified( &maActions );
if ( bHasNew )
pCurSet->ResortNew( &maActions );
// send the new actions with a notify to the listeners
SendNotify();
// check for propertyChangeEvents
pCurSet->CheckProperties( nOldCount, bWasFinal );
}
//-----------------------------------------------------------------
// XEventListener
//-----------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSet::impl_disposing( const EventObject& Source )
throw( RuntimeException )
{
mxListener.clear();
mxOriginal.clear();
}
// ------------------------------------------------------------------------------
// private methods
// ------------------------------------------------------------------------------
void SortedDynamicResultSet::SendNotify()
{
long nCount = maActions.Count();
if ( nCount && mxListener.is() )
{
Sequence< ListAction > aActionList( maActions.Count() );
ListAction *pActionList = aActionList.getArray();
for ( long i=0; i<nCount; i++ )
{
pActionList[ i ] = *(maActions.GetAction( i ));
}
ListEvent aNewEvent;
aNewEvent.Changes = aActionList;
mxListener->notify( aNewEvent );
}
// clean up
maActions.Clear();
}
//=========================================================================
//
// SortedDynamicResultSetFactory
//
//=========================================================================
SortedDynamicResultSetFactory::SortedDynamicResultSetFactory(
const Reference< XMultiServiceFactory > & rSMgr )
{
mxSMgr = rSMgr;
}
//--------------------------------------------------------------------------
SortedDynamicResultSetFactory::~SortedDynamicResultSetFactory()
{
}
//--------------------------------------------------------------------------
// XInterface methods.
//--------------------------------------------------------------------------
XINTERFACE_IMPL_3( SortedDynamicResultSetFactory,
XTypeProvider,
XServiceInfo,
XSortedDynamicResultSetFactory );
//--------------------------------------------------------------------------
// XTypeProvider methods.
//--------------------------------------------------------------------------
XTYPEPROVIDER_IMPL_3( SortedDynamicResultSetFactory,
XTypeProvider,
XServiceInfo,
XSortedDynamicResultSetFactory );
//--------------------------------------------------------------------------
// XServiceInfo methods.
//--------------------------------------------------------------------------
XSERVICEINFO_IMPL_1( SortedDynamicResultSetFactory,
OUString::createFromAscii(
"com.sun.star.comp.ucb.SortedDynamicResultSetFactory" ),
OUString::createFromAscii(
DYNAMIC_RESULTSET_FACTORY_NAME ) );
//--------------------------------------------------------------------------
// Service factory implementation.
//--------------------------------------------------------------------------
ONE_INSTANCE_SERVICE_FACTORY_IMPL( SortedDynamicResultSetFactory );
//--------------------------------------------------------------------------
// SortedDynamicResultSetFactory methods.
//--------------------------------------------------------------------------
Reference< XDynamicResultSet > SAL_CALL
SortedDynamicResultSetFactory::createSortedDynamicResultSet(
const Reference< XDynamicResultSet > & Source,
const Sequence< NumberedSortingInfo > & Info,
const Reference< XAnyCompareFactory > & CompareFactory )
throw( RuntimeException )
{
Reference< XDynamicResultSet > xRet;
xRet = new SortedDynamicResultSet( Source, Info, CompareFactory, mxSMgr );
return xRet;
}
//=========================================================================
//
// EventList
//
//=========================================================================
void EventList::Clear()
{
for ( std::deque< LISTACTION* >::size_type i = 0;
i < maData.size(); ++i )
{
delete maData[i];
}
maData.clear();
}
//--------------------------------------------------------------------------
void EventList::AddEvent( long nType, long nPos, long nCount )
{
ListAction *pAction = new ListAction;
pAction->Position = nPos;
pAction->Count = nCount;
pAction->ListActionType = nType;
Insert( pAction );
}
//=================================================================
//
// SortedDynamicResultSetListener
//
//=================================================================
SortedDynamicResultSetListener::SortedDynamicResultSetListener(
SortedDynamicResultSet *mOwner )
{
mpOwner = mOwner;
}
//-----------------------------------------------------------------
SortedDynamicResultSetListener::~SortedDynamicResultSetListener()
{
}
//-----------------------------------------------------------------
// XInterface methods.
//-----------------------------------------------------------------
XINTERFACE_IMPL_2( SortedDynamicResultSetListener,
XEventListener, /* base class of XDynamicResultSetListener */
XDynamicResultSetListener );
//-----------------------------------------------------------------
// XEventListener ( base of XDynamicResultSetListener )
//-----------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSetListener::disposing( const EventObject& Source )
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mpOwner )
mpOwner->impl_disposing( Source );
}
//-----------------------------------------------------------------
// XDynamicResultSetListener
//-----------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSetListener::notify( const ListEvent& Changes )
throw( RuntimeException )
{
osl::Guard< osl::Mutex > aGuard( maMutex );
if ( mpOwner )
mpOwner->impl_notify( Changes );
}
//-----------------------------------------------------------------
// own methods:
//-----------------------------------------------------------------
void SAL_CALL
SortedDynamicResultSetListener::impl_OwnerDies()
{
osl::Guard< osl::Mutex > aGuard( maMutex );
mpOwner = NULL;
}