/************************************************************************* * * $RCSfile: roottree.cxx,v $ * * $Revision: 1.14 $ * * last change: $Author: jb $ $Date: 2001-07-20 10:58:46 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 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 * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (the "License"); You may not use this file * except in compliance with the License. You may obtain a copy of the * License at http://www.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #include #include "roottree.hxx" #include "roottreeimpl.hxx" #include "nodefactory.hxx" #include "noderef.hxx" #include "nodechangeinfo.hxx" #include "cmtreemodel.hxx" namespace configmgr { namespace configuration { //----------------------------------------------------------------------------- // factory methods //----------------------------------------------------------------------------- RootTree createReadOnlyTree( AbsolutePath const& aRootPath, ISubtree& rCacheNode, TreeDepth nDepth, TemplateProvider const& aTemplateProvider) { return RootTree( new RootTreeImpl( NodeType::getReadAccessFactory(), aRootPath, rCacheNode, nDepth, aTemplateProvider )); } //----------------------------------------------------------------------------- RootTree createUpdatableTree( AbsolutePath const& aRootPath, ISubtree& rCacheNode, TreeDepth nDepth, TemplateProvider const& aTemplateProvider) { return RootTree( new RootTreeImpl( NodeType::getDeferredChangeFactory(), aRootPath, rCacheNode, nDepth, aTemplateProvider )); } //----------------------------------------------------------------------------- // update on notify method //----------------------------------------------------------------------------- bool adjustToChanges( NodeChangesInformation& rLocalChanges, Tree const& aBaseTree, NodeRef const& aBaseNode, SubtreeChange const& aExternalChange) { OSL_PRECOND( !aBaseTree.isEmpty(), "ERROR: Configuration: Tree operation requires a valid Tree"); OSL_PRECOND( aBaseTree.isValidNode(aBaseNode), "ERROR: Configuration: NodeRef does not match Tree"); if (!aBaseTree.isEmpty()) { OSL_ENSURE(rLocalChanges.empty(), "Should pass empty container to adjustToChanges(...)"); TreeImplHelper::impl(aBaseTree)->adjustToChanges(rLocalChanges, TreeImplHelper::offset(aBaseNode), aExternalChange); return !rLocalChanges.empty(); } else return false; } //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- // class CommitHelper //----------------------------------------------------------------------------- struct CommitHelper::Data { ElementList m_aRemovedElements; // filled to keep the elements alive 'till after notification }; //----------------------------------------------------------------------------- CommitHelper::CommitHelper(Tree const& aTree) : m_pData( ) , m_pTree( TreeImplHelper::impl(aTree) ) { OSL_ENSURE(m_pTree, "INTERNAL ERROR: Unexpected NULL tree in commit helper"); } //----------------------------------------------------------------------------- CommitHelper::~CommitHelper() { } //----------------------------------------------------------------------------- void CommitHelper::reset() { m_pData.reset(); } //----------------------------------------------------------------------------- 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 pTreeChange(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().toString() == 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"); m_pTree->finishCommit(rChangeList.root); } //----------------------------------------------------------------------------- void CommitHelper::revertCommit(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"); m_pTree->revertCommit(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"); m_pTree->recoverFailedCommit(rChangeList.root); } //----------------------------------------------------------------------------- } }