/*******************************************************************************
* Copyright (c) 2010 Per Kr. Soreide.
* 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:
* Per Kr. Soreide - initial API and implementation
*******************************************************************************/
package bndtools.release.ui;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import aQute.bnd.differ.Baseline;
import aQute.bnd.osgi.Constants;
import aQute.bnd.service.diff.Delta;
import aQute.bnd.service.diff.Diff;
import aQute.bnd.service.diff.Tree;
import aQute.bnd.service.diff.Type;
public class TreeContentProvider implements ITreeContentProvider {
private boolean showAll = false;
public Object[] getChildren(Object parent) {
if (parent instanceof List) {
return ((List<?>) parent).toArray();
}
if (parent instanceof Baseline) {
Collection<? extends Diff> diffs = ((Baseline) parent).getDiff().getChildren();
List<Diff> filteredDiffs = new ArrayList<Diff>();
for (Diff diff : diffs) {
switch (diff.getType()) {
case API :
case MANIFEST :
case RESOURCES :
if (getChildren(diff).length == 0)
continue;
break;
default:
break;
}
filteredDiffs.add(diff);
}
return filteredDiffs.toArray(new Diff[filteredDiffs.size()]);
}
if (parent instanceof Tree) {
return ((Tree) parent).getChildren();
}
if (parent instanceof Diff) {
return getChildren((Diff) parent);
}
return new Object[0];
}
private Object[] getChildren(Diff parent) {
Collection<? extends Diff> diffs = parent.getChildren();
List<Diff> filteredDiffs = new ArrayList<Diff>();
for (Diff diff : diffs) {
if (!showAll && (diff.getDelta() == Delta.IGNORED || diff.getDelta() == Delta.UNCHANGED)) {
continue;
}
if (diff.getType() == Type.SHA) {
continue;
}
if ("META-INF/MANIFEST.MF".equals(diff.getName())) { //$NON-NLS-1$
continue;
}
if (diff.getType() == Type.HEADER && diff.getName().startsWith(Constants.BUNDLE_VERSION)) {
continue;
}
filteredDiffs.add(diff);
}
return filteredDiffs.toArray(new Diff[filteredDiffs.size()]);
}
public Object getParent(Object item) {
return null;
}
/*
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
*/
public boolean hasChildren(Object parent) {
if (parent instanceof Baseline) {
for (Diff diff : ((Baseline) parent).getDiff().getChildren()) {
switch (diff.getType()) {
case API :
case MANIFEST :
case RESOURCES :
if (getChildren(diff).length > 0)
return true;
break;
default:
break;
}
}
return false;
}
if (parent instanceof Tree) {
return ((Tree) parent).getChildren().length > 0;
}
if (parent instanceof Diff) {
Diff diff = (Diff) parent;
return getChildren(diff).length > 0;
}
return false;
}
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
public boolean isShowAll() {
return showAll;
}
public void setShowAll(boolean showAll) {
this.showAll = showAll;
}
}