/*******************************************************************************
* Copyright (c) 2009, 2010 Ovidio Mallo 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:
* Ovidio Mallo - initial API and implementation (bug 248877)
******************************************************************************/
package org.eclipse.jface.databinding.dialog;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.ValidationStatusProvider;
import org.eclipse.core.databinding.observable.value.ComputedValue;
import org.eclipse.core.runtime.IStatus;
/*package*/ class MaxSeverityValidationStatusProvider extends ComputedValue {
private Collection validationStatusProviders;
public MaxSeverityValidationStatusProvider(DataBindingContext dbc) {
super(ValidationStatusProvider.class);
this.validationStatusProviders = dbc.getValidationStatusProviders();
}
protected Object calculate() {
int maxSeverity = IStatus.OK;
ValidationStatusProvider maxSeverityProvider = null;
for (Iterator it = validationStatusProviders.iterator(); it.hasNext();) {
ValidationStatusProvider provider = (ValidationStatusProvider) it
.next();
IStatus status = (IStatus) provider.getValidationStatus()
.getValue();
if (status.getSeverity() > maxSeverity) {
maxSeverity = status.getSeverity();
maxSeverityProvider = provider;
}
}
return maxSeverityProvider;
}
public synchronized void dispose() {
validationStatusProviders = null;
super.dispose();
}
}