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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: roottree.cxx,v $
* $Revision: 1.21 $
*
* 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 <stdio.h>
#include "roottree.hxx"
#include "roottreeimpl.hxx"
#include "viewaccess.hxx"
#include "viewfactory.hxx"
#include "noderef.hxx"
#include "nodechangeinfo.hxx"
#include "treechangelist.hxx"
namespace configmgr
{
namespace configuration
{
//-----------------------------------------------------------------------------
// factory methods
//-----------------------------------------------------------------------------
rtl::Reference< Tree > createReadOnlyTree( AbsolutePath const& aRootPath,
sharable::Node * cacheNode,
unsigned int nDepth,
TemplateProvider const& aTemplateProvider)
{
return new RootTree(view::createReadOnlyStrategy(),
aRootPath, cacheNode, nDepth,
aTemplateProvider
);
}
//-----------------------------------------------------------------------------
rtl::Reference< Tree > createUpdatableTree( AbsolutePath const& aRootPath,
sharable::Node * cacheNode,
unsigned int nDepth,
TemplateProvider const& aTemplateProvider)
{
return new RootTree(view::createDeferredChangeStrategy(),
aRootPath, cacheNode, nDepth,
aTemplateProvider
);
}
//-----------------------------------------------------------------------------
// update on notify method
//-----------------------------------------------------------------------------
bool adjustToChanges( NodeChangesInformation& rLocalChanges,
rtl::Reference< Tree > const& aBaseTree, NodeRef const& aBaseNode,
SubtreeChange const& aExternalChange)
{
OSL_PRECOND( !isEmpty(aBaseTree.get()), "ERROR: Configuration: Tree operation requires a valid Tree");
OSL_PRECOND( aBaseNode.isValid() && aBaseTree->isValidNode(aBaseNode.getOffset()), "ERROR: Configuration: NodeRef does not match Tree");
if (!isEmpty(aBaseTree.get()))
{
OSL_ENSURE(rLocalChanges.empty(), "Should pass empty container to adjustToChanges(...)");
view::ViewTreeAccess(aBaseTree.get()).adjustToChanges(rLocalChanges, aBaseNode, aExternalChange);
return !rLocalChanges.empty();
}
else
return false;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// class CommitHelper
//-----------------------------------------------------------------------------
struct CommitHelper::Data
{
std::vector< rtl::Reference<ElementTree> > m_aRemovedElements; // filled to keep the elements alive 'till after notification
};
//-----------------------------------------------------------------------------
CommitHelper::CommitHelper(rtl::Reference< Tree > const& aTree)
: m_pData( )
, m_pTree( aTree.get() )
{
OSL_ENSURE(m_pTree, "INTERNAL ERROR: Unexpected NULL tree in commit helper");
}
//-----------------------------------------------------------------------------
CommitHelper::~CommitHelper()
{
}
//-----------------------------------------------------------------------------
bool CommitHelper::prepareCommit(TreeChangeList& rChangeList)
{
OSL_ENSURE(m_pTree,"ERROR: CommitHelper: Cannot commit without a tree");
if (m_pTree == NULL)
return false;
OSL_ENSURE(m_pData.get() == NULL,"ERROR: CommitHelper: Need to reset before reusing");
m_pData.reset( new Data() );
// get and check the changes
std::auto_ptr<SubtreeChange> pTreeChange(view::ViewTreeAccess(m_pTree).preCommitChanges(m_pData->m_aRemovedElements));
if (pTreeChange.get() == NULL)
return false;
// find the name and path of the change
OSL_ENSURE(m_pTree->getSimpleRootName() == pTreeChange->getNodeName(), "ERROR in Commit: Change name mismatch");
// now fill the TreeChangeList
rChangeList.setRootPath( m_pTree->getRootPath() );
rChangeList.root.swap( *pTreeChange );
return true;
}
//-----------------------------------------------------------------------------
void CommitHelper::finishCommit(TreeChangeList& rChangeList)
{
OSL_ENSURE(m_pTree,"INTERNAL ERROR: Nothing to finish without a tree");
// find the name and path of the change
AbsolutePath aPath = m_pTree->getRootPath();
OSL_ENSURE( rChangeList.getRootNodePath().toString() == aPath.toString(), "ERROR: FinishCommit cannot handle rebased changes trees");
if ( !matches(rChangeList.getRootNodePath(), aPath) )
throw configuration::Exception("INTERNAL ERROR: FinishCommit cannot handle rebased changes trees");
view::ViewTreeAccess(m_pTree).finishCommit(rChangeList.root);
}
//-----------------------------------------------------------------------------
void CommitHelper::failedCommit(TreeChangeList& rChangeList)
{
OSL_ENSURE(m_pTree,"INTERNAL ERROR: Nothing to finish without a tree");
AbsolutePath aPath = m_pTree->getRootPath();
OSL_ENSURE( rChangeList.getRootNodePath().toString() == aPath.toString(), "ERROR: FinishCommit cannot handle rebased changes trees");
if ( !matches(rChangeList.getRootNodePath(), aPath) )
throw configuration::Exception("INTERNAL ERROR: FinishCommit cannot handle rebased changes trees");
view::ViewTreeAccess(m_pTree).recoverFailedCommit(rChangeList.root);
}
//-----------------------------------------------------------------------------
}
}
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