| using Lucene.Net.Search.Suggest.Fst; |
| using Lucene.Net.Util; |
| using System; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Search.Suggest |
| { |
| /* |
| * 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 <see cref="IBytesRefSorter"/> that keeps all the entries in memory. |
| /// @lucene.experimental |
| /// @lucene.internal |
| /// </summary> |
| public sealed class InMemorySorter : IBytesRefSorter |
| { |
| private readonly BytesRefArray buffer = new BytesRefArray(Counter.NewCounter()); |
| private bool closed = false; |
| private readonly IComparer<BytesRef> comparer; |
| |
| /// <summary> |
| /// Creates an InMemorySorter, sorting entries by the |
| /// provided comparer. |
| /// </summary> |
| public InMemorySorter(IComparer<BytesRef> comparer) |
| { |
| this.comparer = comparer; |
| } |
| |
| public void Add(BytesRef utf8) |
| { |
| if (closed) |
| { |
| throw new InvalidOperationException(); |
| } |
| buffer.Append(utf8); |
| } |
| |
| public IBytesRefEnumerator GetEnumerator() |
| { |
| closed = true; |
| return buffer.GetEnumerator(comparer); |
| } |
| |
| public IComparer<BytesRef> Comparer => comparer; |
| } |
| } |