| using SimpleFSIndexInput = Lucene.Net.Store.SimpleFSDirectory.SimpleFSIndexInput; |
| |
| namespace Lucene.Net.Store |
| { |
| /* |
| * 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> |
| /// This class provides access to namespace-level features defined in the |
| /// Store namespace. It is used for testing only. |
| /// </summary> |
| public static class TestHelper // LUCENENET specific - made static and remoed private constructor since all members are static |
| { |
| /// <summary> |
| /// Returns true if the instance of the provided input stream is actually |
| /// an <see cref="SimpleFSIndexInput"/>. |
| /// </summary> |
| public static bool IsSimpleFSIndexInput(IndexInput @is) |
| { |
| return @is is SimpleFSIndexInput; |
| } |
| |
| /// <summary> |
| /// Returns true if the provided input stream is an <see cref="SimpleFSIndexInput"/> and |
| /// is a clone, that is it does not own its underlying file descriptor. |
| /// </summary> |
| public static bool IsSimpleFSIndexInputClone(IndexInput @is) |
| { |
| if (IsSimpleFSIndexInput(@is)) |
| { |
| return ((SimpleFSIndexInput)@is).IsClone; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| /// <summary> |
| /// Given an instance of <see cref="SimpleFSIndexInput"/>, this method returns |
| /// true if the underlying file descriptor is valid, and false otherwise. |
| /// this can be used to determine if the OS file has been closed. |
| /// The descriptor becomes invalid when the non-clone instance of the |
| /// <see cref="SimpleFSIndexInput"/> that owns this descriptor is disposed. However, the |
| /// descriptor may possibly become invalid in other ways as well. |
| /// </summary> |
| public static bool IsSimpleFSIndexInputOpen(IndexInput @is) |
| { |
| if (IsSimpleFSIndexInput(@is)) |
| { |
| SimpleFSIndexInput fis = (SimpleFSIndexInput)@is; |
| return fis.IsFDValid; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| } |
| } |