/*
* Created on 25-Jan-2006
*/
package org.apache.lucene.xmlparser.builders;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanFilter;
import org.apache.lucene.search.DuplicateFilter;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.FilterClause;
import org.apache.lucene.xmlparser.DOMUtils;
import org.apache.lucene.xmlparser.FilterBuilder;
import org.apache.lucene.xmlparser.ParserException;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.
*/
/**
*
*/
public class DuplicateFilterBuilder implements FilterBuilder {
public Filter getFilter(Element e) throws ParserException {
String fieldName=DOMUtils.getAttributeWithInheritanceOrFail(e,"fieldName");
DuplicateFilter df=new DuplicateFilter(fieldName);
String keepMode=DOMUtils.getAttribute(e,"keepMode","first");
if(keepMode.equalsIgnoreCase("first"))
{
df.setKeepMode(DuplicateFilter.KM_USE_FIRST_OCCURRENCE);
}
else
if(keepMode.equalsIgnoreCase("last"))
{
df.setKeepMode(DuplicateFilter.KM_USE_LAST_OCCURRENCE);
}
else
{
throw new ParserException("Illegal keepMode attribute in DuplicateFilter:"+keepMode);
}
String processingMode=DOMUtils.getAttribute(e,"processingMode","full");
if(processingMode.equalsIgnoreCase("full"))
{
df.setProcessingMode(DuplicateFilter.PM_FULL_VALIDATION);
}
else
if(processingMode.equalsIgnoreCase("fast"))
{
df.setProcessingMode(DuplicateFilter.PM_FAST_INVALIDATION);
}
else
{
throw new ParserException("Illegal processingMode attribute in DuplicateFilter:"+processingMode);
}
return df;
}
}