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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: invalidatetree.cxx,v $
* $Revision: 1.23 $
*
* 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_configmgr.hxx"
#include "cachecontroller.hxx"
#include "change.hxx"
#include "valuenode.hxx"
#include "updatehelper.hxx"
#include "treeactions.hxx"
#include "treeaccessor.hxx"
#include "tracer.hxx"
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/container/NoSuchElementException.hpp>
#include <vos/thread.hxx>
#ifndef INCLUDED_ALGORITHM
#include <algorithm>
#define INCLUDED_ALGORITHM
#endif
namespace configmgr
{
using namespace com::sun::star::uno;
using namespace configuration;
namespace container = com::sun::star::container;
// -----------------------------------------------------------------------------
// ------------------------------- invalidateTree -------------------------------
// -----------------------------------------------------------------------------
namespace backend
{
// -----------------------------------------------------------------------------
std::auto_ptr<SubtreeChange> createDiffs(data::NodeAccess const& _aCachedNode,
ISubtree const * _pLoadedSubtree,
AbsolutePath const& _aAbsoluteSubtreePath)
{
OSL_PRECOND(_aCachedNode.isValid(), "Need an existing node to create a diff");
OSL_PRECOND(_pLoadedSubtree != 0, "Need a result node to create a diff");
// Create a TreeChangeList with the right name, parentname and ConfigurationProperties
std::auto_ptr<SubtreeChange> aNewChange(new SubtreeChange(_aAbsoluteSubtreePath.getLocalName().getName().toString(),
node::Attributes()) );
if (!createUpdateFromDifference(*aNewChange, _aCachedNode, *_pLoadedSubtree))
aNewChange.reset();
return aNewChange;
}
// -----------------------------------------------------------------------------
#if 0
std::auto_ptr<ISubtree> TreeManager::loadNodeFromSession( AbsolutePath const& _aAbsoluteSubtreePath,
const vos::ORef < OOptions >& _xOptions,
sal_Int16 _nMinLevels) CFG_UNO_THROW_ALL()
{
TreeInfo* pInfo = this->requestTreeInfo(_xOptions,true /*create TreeInfo*/);
CFG_TRACE_INFO_NI("cache manager: cache miss. going to load the node");
rtl::Reference< OTreeLoader > xLoader = pInfo->getNewLoaderWithoutPending(_aAbsoluteSubtreePath, _nMinLevels, _xOptions, m_xBackend.get());
OSL_ENSURE(xLoader.is(), "Did not receive a loader for retrieving the node");
CFG_TRACE_INFO_NI("cache manager: cache miss. going to load the node");
if (!xLoader.is())
throw container::NoSuchElementException((::rtl::OUString::createFromAscii("Error while retrieving the node")), NULL);
// now block for reading
std::auto_ptr<ISubtree> pResponse;
try
{
pResponse = xLoader->waitToResponse();
}
catch (uno::Exception& e)
{
pInfo->releaseLoader(xLoader);
throw;
}
pInfo->releaseLoader(xLoader);
return pResponse;
}
#endif
// -----------------------------------------------------------------------------
class OInvalidateTreeThread: public vos::OThread
{
typedef backend::ICachedDataProvider CacheManager;
typedef rtl::Reference< CacheManager > CacheManagerRef;
CacheManagerRef m_rTreeManager;
Name m_aComponentName;
RequestOptions m_aOptions;
public:
OInvalidateTreeThread(CacheManager* _rTreeManager,
Name const & _aComponentName,
const RequestOptions& _aOptions)
: m_rTreeManager(_rTreeManager)
, m_aComponentName(_aComponentName)
, m_aOptions(_aOptions)
{}
~OInvalidateTreeThread()
{}
private:
virtual void SAL_CALL onTerminated()
{
delete this;
}
virtual void SAL_CALL run();
};
// -----------------------------------------------------------------------------
void CacheController::invalidateComponent(ComponentRequest const & _aComponent) CFG_UNO_THROW_ALL( )
{
if (!this->m_bDisposing)
{
// start the InvalidateTreeThread only, if we are not at disposemode
if (OInvalidateTreeThread *pThread =
new OInvalidateTreeThread(this, _aComponent.getComponentName(), _aComponent.getOptions()))
{
pThread->create();
}
else
OSL_ENSURE(false, "Could not create refresher thread");
}
}
// -----------------------------------------------------------------------------
CacheLocation CacheController::refreshComponent(ComponentRequest const & _aRequest) CFG_UNO_THROW_ALL()
{
if (m_bDisposing) return NULL;
CacheRef aCache = this->getCacheAlways(_aRequest.getOptions());
if (!aCache.is()) return NULL;
// load the Node direct from the session, without using the cache
ComponentRequest aForcedRequest(_aRequest);
aForcedRequest.forceReload();
ComponentResult aLoadedInstance = this->getComponentData(aForcedRequest,false);
AbsolutePath aRequestPath = AbsolutePath::makeModulePath(_aRequest.getComponentName(), AbsolutePath::NoValidate());
NodeInstance aNodeInstance(aLoadedInstance.mutableInstance().mutableData(),aRequestPath) ;
NodeResult aLoadedNodeInstance(aNodeInstance) ;
data::TreeAddress aResult = NULL;
if (aLoadedNodeInstance.is())
{
Name aModuleName = aLoadedNodeInstance->root().getModuleName();
bool bAcquired = aCache->acquireModule(aModuleName);
aResult = CacheLocation( aCache->getTreeAddress(aModuleName) );
if (bAcquired)
try
{
std::auto_ptr<SubtreeChange> aTreeChanges;
data::NodeAddress aRootAddress;
{
data::TreeAccessor aTreeAccess(aResult);
data::NodeAccess aRootNode = aTreeAccess.getRootNode();
aTreeChanges = createDiffs(aRootNode, aLoadedNodeInstance->data().get(), aLoadedNodeInstance->root().location());
aRootAddress = aRootNode;
}
if (aTreeChanges.get() != NULL)
{
// change all Values... found in the Subtree in the CacheTree
applyUpdateWithAdjustmentToTree(*aTreeChanges, aRootAddress);
UpdateRequest anUpdateReq( aTreeChanges.get(),
aLoadedNodeInstance->root().location(),
_aRequest.getOptions()
);
m_aNotifier.notifyChanged(anUpdateReq);
}
aCache->releaseModule(aModuleName);
}
catch (...)
{
aCache->releaseModule(aModuleName);
throw;
}
}
return aResult;
}
// -----------------------------------------------------------------------------
void OInvalidateTreeThread::run()
{
try
{
UnoApiLock aLock;
ComponentRequest aRequest(m_aComponentName, m_aOptions);
m_rTreeManager->refreshComponent(aRequest);
}
catch(uno::Exception&)
{
// do nothing, only thread safe exception absorb
CFG_TRACE_ERROR_NI("OInvalidateTreeThread::run: refreshing failed - ignoring the exception");
}
}
// -----------------------------------------------------------------------------
} // namespace backend
// -----------------------------------------------------------------------------
} // namespace configmgr
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