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/*****************************************************************************
* Copyright (c) 2014 CEA LIST 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.nattable.tree;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.RollbackException;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.papyrus.infra.emf.gmf.util.GMFUnsafe;
import org.eclipse.papyrus.infra.nattable.Activator;
import org.eclipse.papyrus.infra.nattable.manager.axis.ITreeItemAxisManagerForEventList;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxis.EObjectTreeItemAxis;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxis.ITreeItemAxis;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxis.NattableaxisFactory;
import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxisconfiguration.AxisManagerRepresentation;
/**
* @author VL222926
*
*/
// TODO : refactore me to use IAxisFactory ?
public class ITreeItemAxisHelper {
private ITreeItemAxisHelper() {
// to prevent instanciation
}
/**
*
* @param editingDomain
* the editing domain to use to create the ITreeItemAxis
* @param parentAxis
* the parent axis to use for the created ITreeItemAxis
* @param child
* the object to wrap in the created ITreeItemAxis
* @param axisRepresentation
* the axis representation of the axis manager providing its ITreeItemAxis
* @return
* the created {@link ITreeItemAxis}
*/
public static ITreeItemAxis createITreeItemAxis(final TransactionalEditingDomain editingDomain, final ITreeItemAxis parentAxis, final Object child, final AxisManagerRepresentation axisRepresentation) {
final ITreeItemAxis axis;
if (child instanceof EObject) {
axis = NattableaxisFactory.eINSTANCE.createEObjectTreeItemAxis();
((EObjectTreeItemAxis) axis).setElement((EObject) child);
} else {
axis = null;
throw new UnsupportedOperationException("The only managed case is EObject, others cases are not yet managed"); //$NON-NLS-1$
}
try {
if(null != editingDomain){
GMFUnsafe.write(editingDomain, new Runnable() {
@Override
public void run() {
if (parentAxis != null) {
axis.setParent(parentAxis);
}
axis.setManager(axisRepresentation);
}
});
}else{
if (parentAxis != null) {
axis.setParent(parentAxis);
}
axis.setManager(axisRepresentation);
}
} catch (InterruptedException e) {
Activator.log.error(e);
} catch (RollbackException e) {
Activator.log.error(e);
}
return axis;
}
/**
* This method to destroy an {@link ITreeItemAxis} from the model
*
* @param domain
* the editing domain to use to drestoy the {@link ITreeItemAxis}
* @param axisToDestroy
* the {@link ITreeItemAxis} to destroy
*/
public static void destroyITreeItemAxis(final TransactionalEditingDomain domain, final ITreeItemAxis axisToDestroy) {
try {
GMFUnsafe.write(domain, new Runnable() {
@Override
public void run() {
axisToDestroy.setParent(null);
}
});
} catch (InterruptedException e) {
Activator.log.error(e);
} catch (RollbackException e) {
Activator.log.error(e);
}
}
/**
* Does the linkage between semantic element and IAxis inside a map used by an {@link ITreeItemAxisManagerForEventList}
*
* @param managedElements
* a map owning elements managed by an {@link ITreeItemAxisManagerForEventListt} : keys are semantic element and values are {@link ITreeItemAxis} representation for the semantic element
* @param axis
* the axis
*/
public static final void linkITreeItemAxisToSemanticElement(final Map<Object, Set<ITreeItemAxis>> managedElements, final ITreeItemAxis axis) {
final Object object = axis.getElement();
Set<ITreeItemAxis> value = managedElements.get(object);
if (value == null) {
value = new HashSet<ITreeItemAxis>();
managedElements.put(object, value);
}
value.add(axis);
}
/**
* Undoes the linkage between semantic element and IAxis inside a map used by an {@link ITreeItemAxisManagerForEventList}
*
* @param managedElements
* a map owning elements managed by an {@link ITreeItemAxisManagerForEventListt} : keys are semantic element and values are {@link ITreeItemAxis} representation for the semantic element
* @param axis
* the axis
*/
public static final void unlinkITreeItemAxisToSemanticElement(final Map<Object, Set<ITreeItemAxis>> managedElements, final ITreeItemAxis axis) {
final Object element = axis.getElement();
Set<ITreeItemAxis> values = managedElements.get(element);
if (values != null) {
values.remove(axis);
}
if (values == null || values.size() == 0) {
managedElements.remove(element);
}
}
}
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