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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.model;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.ICModelStatus;
import org.eclipse.cdt.core.model.ICModelStatusConstants;
/**
* Reconcile a working copy and signal the changes through a delta.
*/
public class ReconcileWorkingCopyOperation extends CModelOperation {
boolean forceProblemDetection;
public ReconcileWorkingCopyOperation(ICElement workingCopy, boolean forceProblemDetection) {
super(new ICElement[] {workingCopy});
this.forceProblemDetection = forceProblemDetection;
}
/**
* @exception CModelException if setting the source
* of the original compilation unit fails
*/
protected void executeOperation() throws CModelException {
if (fMonitor != null){
if (fMonitor.isCanceled()) return;
fMonitor.beginTask("element.reconciling", 10); //$NON-NLS-1$
}
WorkingCopy workingCopy = getWorkingCopy();
boolean wasConsistent = workingCopy.isConsistent();
CElementDeltaBuilder deltaBuilder = null;
try {
// create the delta builder (this remembers the current content of the cu)
if (!wasConsistent){
deltaBuilder = new CElementDeltaBuilder(workingCopy);
// update the element infos with the content of the working copy
workingCopy.makeConsistent(fMonitor);
deltaBuilder.buildDeltas();
// register the deltas
if (deltaBuilder != null){
if ((deltaBuilder.delta != null) && (deltaBuilder.delta.getAffectedChildren().length > 0)) {
addReconcileDelta(workingCopy, deltaBuilder.delta);
}
}
}
if (fMonitor != null) fMonitor.worked(2);
// force problem detection? - if structure was consistent
if (forceProblemDetection && wasConsistent){
if (fMonitor != null && fMonitor.isCanceled()) return;
}
} finally {
if (fMonitor != null) fMonitor.done();
}
}
/**
* Returns the working copy this operation is working on.
*/
protected WorkingCopy getWorkingCopy() {
return (WorkingCopy)getElementToProcess();
}
/**
* @see CModelOperation#isReadOnly
*/
public boolean isReadOnly() {
return true;
}
protected ICModelStatus verify() {
ICModelStatus status = super.verify();
if (!status.isOK()) {
return status;
}
WorkingCopy workingCopy = getWorkingCopy();
if (workingCopy.useCount == 0) {
return new CModelStatus(ICModelStatusConstants.ELEMENT_DOES_NOT_EXIST, workingCopy); //was destroyed
}
return status;
}
}
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