| /* |
| * 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. |
| */ |
| |
| using System; |
| |
| namespace Lucene.Net.Index |
| { |
| |
| |
| class SegmentTermVector : ITermFreqVector |
| { |
| private System.String field; |
| private System.String[] terms; |
| private int[] termFreqs; |
| |
| internal SegmentTermVector(System.String field, System.String[] terms, int[] termFreqs) |
| { |
| this.field = field; |
| this.terms = terms; |
| this.termFreqs = termFreqs; |
| } |
| |
| /// <summary> </summary> |
| /// <value> The number of the field this vector is associated with </value> |
| public virtual string Field |
| { |
| get { return field; } |
| } |
| |
| public override System.String ToString() |
| { |
| System.Text.StringBuilder sb = new System.Text.StringBuilder(); |
| sb.Append('{'); |
| sb.Append(field).Append(": "); |
| if (terms != null) |
| { |
| for (int i = 0; i < terms.Length; i++) |
| { |
| if (i > 0) |
| sb.Append(", "); |
| sb.Append(terms[i]).Append('/').Append(termFreqs[i]); |
| } |
| } |
| sb.Append('}'); |
| |
| return sb.ToString(); |
| } |
| |
| public virtual int Size |
| { |
| get { return terms == null ? 0 : terms.Length; } |
| } |
| |
| public virtual System.String[] GetTerms() |
| { |
| return terms; |
| } |
| |
| public virtual int[] GetTermFrequencies() |
| { |
| return termFreqs; |
| } |
| |
| public virtual int IndexOf(System.String termText) |
| { |
| if (terms == null) |
| return - 1; |
| int res = System.Array.BinarySearch(terms, termText, System.StringComparer.Ordinal); |
| return res >= 0?res:- 1; |
| } |
| |
| public virtual int[] IndexesOf(System.String[] termNumbers, int start, int len) |
| { |
| // TODO: there must be a more efficient way of doing this. |
| // At least, we could advance the lower bound of the terms array |
| // as we find valid indexes. Also, it might be possible to leverage |
| // this even more by starting in the middle of the termNumbers array |
| // and thus dividing the terms array maybe in half with each found index. |
| int[] res = new int[len]; |
| |
| for (int i = 0; i < len; i++) |
| { |
| res[i] = IndexOf(termNumbers[start + i]); |
| } |
| return res; |
| } |
| } |
| } |