/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA licenses this file to You 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.archive.wayback.resourceindex;
import java.util.Comparator;
import org.archive.wayback.core.CaptureSearchResult;
/**
*
*
* @author brad
* @version $Date$, $Revision$
*/
public class SearchResultComparator implements Comparator<CaptureSearchResult> {
private boolean backwards;
/**
* Constructor backwards value of true creates a reverse comparator
* @param backwards
*/
public SearchResultComparator(boolean backwards) {
this.backwards = backwards;
}
/**
* Constructor: compare in normal forwards sort order
*/
public SearchResultComparator() {
backwards = false;
}
private String objectToKey(CaptureSearchResult r) {
String urlKey = r.getUrlKey();
String captureDate = r.getCaptureTimestamp();
return urlKey + " " + captureDate;
}
/* (non-Javadoc)
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
public int compare(CaptureSearchResult o1, CaptureSearchResult o2) {
String k1 = objectToKey(o1);
String k2 = objectToKey(o2);
if(backwards) {
return k2.compareTo(k1);
}
return k1.compareTo(k2);
}
}