| namespace Lucene.Net.Index |
| { |
| /* |
| * 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 BufferedIndexInput = Lucene.Net.Store.BufferedIndexInput; |
| |
| // TODO: what is this used for? just testing BufferedIndexInput? |
| // if so it should be pkg-private. otherwise its a dup of ByteArrayIndexInput? |
| /// <summary> |
| /// <see cref="Store.IndexInput"/> backed by a <see cref="T:byte[]"/> for testing. |
| /// </summary> |
| public class MockIndexInput : BufferedIndexInput |
| { |
| private readonly byte[] buffer; |
| private int pointer = 0; |
| private readonly long length; |
| |
| public MockIndexInput(byte[] bytes) |
| : base("MockIndexInput", BufferedIndexInput.BUFFER_SIZE) |
| { |
| buffer = bytes; |
| length = bytes.Length; |
| } |
| |
| protected override void ReadInternal(byte[] dest, int destOffset, int len) |
| { |
| int remainder = len; |
| int start = pointer; |
| while (remainder != 0) |
| { |
| // int bufferNumber = start / buffer.length; |
| int bufferOffset = start % buffer.Length; |
| int bytesInBuffer = buffer.Length - bufferOffset; |
| int bytesToCopy = bytesInBuffer >= remainder ? remainder : bytesInBuffer; |
| System.Buffer.BlockCopy(buffer, bufferOffset, dest, destOffset, bytesToCopy); |
| destOffset += bytesToCopy; |
| start += bytesToCopy; |
| remainder -= bytesToCopy; |
| } |
| pointer += len; |
| } |
| |
| protected override void Dispose(bool disposing) |
| { |
| // ignore |
| } |
| |
| protected override void SeekInternal(long pos) |
| { |
| pointer = (int)pos; |
| } |
| |
| public override long Length => length; |
| } |
| } |