/*
* 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.filters;
import org.archive.wayback.core.CaptureSearchResult;
import org.archive.wayback.util.ObjectFilter;
/**
* ObjectFilter which omits exact duplicate URL+date records from a stream
* of CaptureSearchResult.
*
* @author brad
* @version $Date$, $Revision$
*/
public class DuplicateRecordFilter implements ObjectFilter<CaptureSearchResult> {
private String lastUrl = null;
private String lastDate = null;
/* (non-Javadoc)
* @see org.archive.wayback.util.ObjectFilter#filterObject(java.lang.Object)
*/
public int filterObject(CaptureSearchResult o) {
String thisUrl = o.getOriginalUrl();
String thisDate = o.getCaptureTimestamp();
int result = ObjectFilter.FILTER_INCLUDE;
if(lastUrl != null) {
if(lastUrl.equals(thisUrl) && thisDate.equals(lastDate)) {
result = FILTER_EXCLUDE;
}
}
lastUrl = thisUrl;
lastDate = thisDate;
return result;
}
}