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/*******************************************************************************
* Copyright (c) 2012, 2013 Ericsson
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* https://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Miles Parker (Tasktop Technologies) - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.reviews.ui.providers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.mylyn.reviews.core.model.IFileItem;
import org.eclipse.mylyn.reviews.core.model.IReview;
import org.eclipse.mylyn.reviews.core.model.IReviewItem;
import org.eclipse.mylyn.reviews.core.model.IReviewItemSet;
import org.eclipse.mylyn.reviews.core.model.IComment;
import org.eclipse.mylyn.reviews.core.model.ICommentContainer;
/**
* Provides a common tree hierarchy similar to Gerrit Web UI hierarchy, except that when used with ReviewsSorter, global
* comments appear as members of a single "Global" node. Hierarchy is:
* <ol>
* <li>Global Node</li>
* <li>-Comments</li>
* <li>Patch Sets</li>
* <li>-Artifacts</li>
* <li>--Artifact Comments</li>
* </ol>
*
* @see ReviewsSorter
* @author Miles Parker
*/
public class ReviewsTreeContentProvider extends GenericTreeContentProvider {
public Object[] getElements(Object element) {
if (element instanceof GlobalCommentsNode) {
return ((GlobalCommentsNode) element).getReview().getComments().toArray();
} else if (element instanceof EObject) {
List<Object> children = new ArrayList<Object>();
if (element instanceof IReview) {
children.add(new GlobalCommentsNode((IReview) element));
children.addAll(((IReview) element).getSets());
return children.toArray();
}
if (element instanceof IReviewItemSet) {
IReviewItemSet itemSet = (IReviewItemSet) element;
if (itemSet.getItems().size() > 0) {
children.addAll(itemSet.getComments());
children.addAll(itemSet.getItems());
} else {
children.add(new RetrievingContentsNode(itemSet));
}
}
if (element instanceof IComment) {
IComment comment = (IComment) element;
children.addAll(comment.getReplies());
}
if (element instanceof IFileItem) {
IFileItem item = (IFileItem) element;
for (IComment comment : item.getBase().getComments()) {
children.add(comment);
}
for (IComment comment : item.getTarget().getComments()) {
children.add(comment);
}
}
return children.toArray();
}
return getCollectionChildren(element);
}
/**
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
*/
@Override
public boolean hasChildren(Object element) {
if (element instanceof IReview) {
return ((IReview) element).getSets().size() > 0;
}
if (element instanceof GlobalCommentsNode) {
return ((GlobalCommentsNode) element).getReview().getComments().size() > 0;
}
return ((element instanceof ICommentContainer) && ((ICommentContainer) element).getAllComments().size() > 0)
|| (element instanceof IReview && ((IReview) element).getSets().size() > 0)
|| (element instanceof GlobalCommentsNode && hasChildren(((GlobalCommentsNode) element).getReview()) || (element instanceof IReviewItemSet))
|| hasCollectionChildren(element);
}
@Override
public Object getParent(Object element) {
if (element instanceof IReviewItem) {
return ((IReviewItem) element).getReview();
}
return null;
}
}
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