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/*******************************************************************************
* Copyright (c) 2012, 2017 CEA LIST, Christian W. Damus, 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:
* Nicolas Bros (Mia-Software) - Bug 374758 - [Table] repair the table
* Gregoire Dupe (Mia-Software) - Bug 372626 - Aggregates
* Thomas Cicognani (Soft-Maint) - Bug 420192 - UnsupportedOperationException in a usefull method
* Christian W. Damus - bug 515913
*******************************************************************************/
package org.eclipse.papyrus.emf.facet.custom.core.internal;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.common.util.EList;
import org.eclipse.papyrus.emf.facet.custom.metamodel.v0_2_0.custom.Customization;
import org.eclipse.papyrus.emf.facet.efacet.metamodel.v0_2_0.efacet.FacetSet;
/** Represents a list of {@link Customization}s that exists as a subset of a delegate list of {@link FacetSet}s. */
public class CustomizationsDelegatingList extends BasicEList<Customization> {
private static final long serialVersionUID = 1L;
private final List<FacetSet> delegate;
public CustomizationsDelegatingList(final List<FacetSet> delegate) {
super(customizations(delegate));
this.delegate = delegate;
}
/**
* @since 3.0
*/
@Override
protected void didAdd(int index, Customization newObject) {
// Insert at the corresponding location in the delegate
if (index > 0) {
index = delegate.indexOf(get(index - 1)) + 1;
}
delegate.add(index, newObject);
}
/**
* @since 3.0
*/
@Override
protected void didSet(int index, Customization newObject, Customization oldObject) {
index = delegate.indexOf(oldObject);
delegate.set(index, newObject);
}
/**
* @since 3.0
*/
@Override
protected void didRemove(int index, Customization oldObject) {
delegate.remove(oldObject);
}
/**
* @since 3.0
*/
@Override
protected void didClear(int size, Object[] oldObjects) {
delegate.removeAll(Arrays.asList(oldObjects));
}
/**
* @since 3.0
*/
@Override
protected void didMove(int index, Customization movedObject, int oldIndex) {
// Move to the corresponding location in the delegate
if (index > 0) {
index = delegate.indexOf(get(index - 1)) + 1;
}
if (delegate instanceof EList<?>) {
((EList<FacetSet>) delegate).move(index, movedObject);
} else {
// Do it the hard way
delegate.remove(movedObject);
delegate.add(index, movedObject);
}
}
/**
* Obtains the subset of a list of facet-sets that are customizations.
*
* @param facetSets
* the superset
* @return the subset of customizations
* @since 3.0
*/
protected static List<Customization> customizations(List<FacetSet> facetSets) {
return facetSets.stream()
.filter(Customization.class::isInstance).map(Customization.class::cast)
.collect(Collectors.toList());
}
}
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