/*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.guvnor.tools.utils;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.guvnor.tools.views.model.ResourceHistoryEntry;
/**
* Sorts resource versions based on revision number.
*/
public class ResourceHistorySorter extends ViewerSorter {
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
if (e1 instanceof ResourceHistoryEntry
&& e2 instanceof ResourceHistoryEntry) {
ResourceHistoryEntry entry1 = (ResourceHistoryEntry)e1;
ResourceHistoryEntry entry2 = (ResourceHistoryEntry)e2;
return Integer.parseInt(entry2.getRevision()) - Integer.parseInt(entry1.getRevision());
} else {
return super.compare(viewer, e1, e2);
}
}
}