/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.ui.internal.views;
import org.eclipse.help.IHelpResource;
import org.eclipse.help.search.ISearchEngineResult;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
public class FederatedSearchSorter extends ViewerComparator {
public FederatedSearchSorter() {
super(ReusableHelpPart.SHARED_COLLATOR);
}
@Override
public int category(Object element) {
if (element instanceof ISearchEngineResult) {
ISearchEngineResult r = (ISearchEngineResult)element;
IHelpResource c = r.getCategory();
if (c!=null) {
String label = c.getLabel();
if (label.length()==0)
return 10;
return 5;
}
}
return super.category(element);
}
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
int cat1 = category(e1);
int cat2 = category(e2);
if (cat1 != cat2)
return cat1 - cat2;
try {
ISearchEngineResult r1 = (ISearchEngineResult) e1;
ISearchEngineResult r2 = (ISearchEngineResult) e2;
IHelpResource c1 = r1.getCategory();
IHelpResource c2 = r2.getCategory();
if (c1!=null && c2!=null) {
int cat = super.compare(viewer, c1.getLabel(), c2.getLabel());
if (cat!=0) return cat;
}
float rank1 = ((ISearchEngineResult) e1).getScore();
float rank2 = ((ISearchEngineResult) e2).getScore();
if (rank1 - rank2 > 0) {
return -1;
} else if (rank1 == rank2) {
return 0;
} else {
return 1;
}
} catch (Exception e) {
}
return super.compare(viewer, e1, e2);
}
}