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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.search.indexing;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.ElementChangedEvent;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ICElementDelta;
import org.eclipse.cdt.core.model.IElementChangedListener;
import org.eclipse.cdt.internal.core.model.SourceRoot;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
public class IndexerModelListener implements IElementChangedListener {
private static IndexerModelListener indexerModelListener;
private static IndexManager indexManager;
private IndexerModelListener() {}
/**
* Return the singleton.
*/
public static synchronized IndexerModelListener getDefault() {
if (indexerModelListener == null) {
indexerModelListener = new IndexerModelListener();
CoreModel.getDefault().addElementChangedListener(indexerModelListener);
indexManager = CoreModel.getDefault().getIndexManager();
}
return indexerModelListener;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.model.IElementChangedListener#elementChanged(org.eclipse.cdt.core.model.ElementChangedEvent)
*/
public void elementChanged(ElementChangedEvent event) {
try {
processDelta(event.getDelta());
} catch(CModelException e) {
}
}
protected void processDelta(ICElementDelta delta) throws CModelException {
int kind= delta.getKind();
int flags= delta.getFlags();
ICElement element= delta.getElement();
switch(delta.getKind()){
case ICElementDelta.CHANGED:
if ((flags & ICElementDelta.F_CHANGED_PATHENTRY_INCLUDE) != 0 ||
(flags & ICElementDelta.F_CHANGED_PATHENTRY_MACRO) != 0){
IResource tempResource = element.getResource();
SourceRoot tempRootElement = null;
switch(tempResource.getType())
{
case IResource.FILE:
indexManager.addSource((IFile) tempResource,tempResource.getProject().getFullPath());
break;
case IResource.FOLDER:
tempRootElement = (SourceRoot) getElementSource(element);
if (tempRootElement != null){
IProject theProj = tempResource.getProject();
indexManager.indexSourceFolder(theProj,tempResource.getFullPath(),tempRootElement.getSourceEntry().fullExclusionPatternChars());
}
break;
case IResource.PROJECT:
indexManager.indexAll(tempResource.getProject());
break;
}
}
break;
}
ICElementDelta[] affectedChildren= delta.getAffectedChildren();
for (int i= 0; i < affectedChildren.length; i++) {
processDelta(affectedChildren[i]);
}
}
ICElement getElementSource(ICElement element){
if (element instanceof SourceRoot){
return element;
}
if (element.getParent() != null){
return getElementSource(element.getParent());
}
return null;
}
}
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