| /* |
| * 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. |
| */ |
| package org.apache.lucene.search.vectorhighlight; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.lucene.search.vectorhighlight.FieldFragList.WeightedFragInfo; |
| import org.apache.lucene.search.vectorhighlight.FieldPhraseList.WeightedPhraseInfo; |
| |
| /** |
| * An implementation class of {@link FragListBuilder} that generates one {@link WeightedFragInfo} object. |
| * Typical use case of this class is that you can get an entire field contents |
| * by using both of this class and {@link SimpleFragmentsBuilder}.<br> |
| * <pre class="prettyprint"> |
| * FastVectorHighlighter h = new FastVectorHighlighter( true, true, |
| * new SingleFragListBuilder(), new SimpleFragmentsBuilder() ); |
| * </pre> |
| */ |
| public class SingleFragListBuilder implements FragListBuilder { |
| |
| @Override |
| public FieldFragList createFieldFragList(FieldPhraseList fieldPhraseList, |
| int fragCharSize) { |
| |
| FieldFragList ffl = new SimpleFieldFragList( fragCharSize ); |
| |
| List<WeightedPhraseInfo> wpil = new ArrayList<>(); |
| Iterator<WeightedPhraseInfo> ite = fieldPhraseList.phraseList.iterator(); |
| WeightedPhraseInfo phraseInfo = null; |
| while( true ){ |
| if( !ite.hasNext() ) break; |
| phraseInfo = ite.next(); |
| if( phraseInfo == null ) break; |
| |
| wpil.add( phraseInfo ); |
| } |
| if( wpil.size() > 0 ) |
| ffl.add( 0, Integer.MAX_VALUE, wpil ); |
| return ffl; |
| } |
| |
| } |