| using System.Collections.Generic; |
| using WeightedPhraseInfo = Lucene.Net.Search.VectorHighlight.FieldPhraseList.WeightedPhraseInfo; |
| |
| namespace Lucene.Net.Search.VectorHighlight |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// An implementation class of <see cref="IFragListBuilder"/> that generates one <see cref="FieldFragList.WeightedFragInfo"/> object. |
| /// Typical use case of this class is that you can get an entire field contents |
| /// by using both of this class and <see cref="SimpleFragmentsBuilder"/>. |
| /// <para/> |
| /// <code> |
| /// FastVectorHighlighter h = new FastVectorHighlighter( true, true, |
| /// new SingleFragListBuilder(), new SimpleFragmentsBuilder() ); |
| /// </code> |
| /// </summary> |
| public class SingleFragListBuilder : IFragListBuilder |
| { |
| public virtual FieldFragList CreateFieldFragList(FieldPhraseList fieldPhraseList, |
| int fragCharSize) |
| { |
| FieldFragList ffl = new SimpleFieldFragList(fragCharSize); |
| |
| List<WeightedPhraseInfo> wpil = new List<WeightedPhraseInfo>(); |
| using IEnumerator<WeightedPhraseInfo> ite = fieldPhraseList.PhraseList.GetEnumerator(); |
| WeightedPhraseInfo phraseInfo = null; |
| while (true) |
| { |
| if (!ite.MoveNext()) break; |
| phraseInfo = ite.Current; |
| if (phraseInfo == null) break; |
| |
| wpil.Add(phraseInfo); |
| } |
| if (wpil.Count > 0) |
| ffl.Add(0, int.MaxValue, wpil); |
| return ffl; |
| } |
| } |
| } |