/* * Created on 25-Jan-2006 */ package org.apache.lucene.xmlparser.builders; import org.apache.lucene.search.DuplicateFilter; import org.apache.lucene.search.Filter; import org.apache.lucene.xmlparser.DOMUtils; import org.apache.lucene.xmlparser.FilterBuilder; import org.apache.lucene.xmlparser.ParserException; import org.w3c.dom.Element; /** * 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; } }