| using Lucene.Net.Support; |
| using System.Diagnostics.CodeAnalysis; |
| |
| namespace Lucene.Net.Util |
| { |
| /* |
| * 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 DataOutput = Lucene.Net.Store.DataOutput; |
| |
| /// <summary> |
| /// A <see cref="DataOutput"/> that can be used to build a <see cref="T:byte[]"/>. |
| /// <para/> |
| /// @lucene.internal |
| /// </summary> |
| public sealed class GrowableByteArrayDataOutput : DataOutput |
| { |
| /// <summary> |
| /// The bytes </summary> |
| [WritableArray] |
| [SuppressMessage("Microsoft.Performance", "CA1819", Justification = "Lucene's design requires some writable array properties")] |
| public byte[] Bytes |
| { |
| get => bytes; |
| set => bytes = value; |
| } |
| private byte[] bytes; |
| |
| /// <summary> |
| /// The length </summary> |
| public int Length { get; set; } |
| |
| /// <summary> |
| /// Create a <see cref="GrowableByteArrayDataOutput"/> with the given initial capacity. </summary> |
| public GrowableByteArrayDataOutput(int cp) |
| { |
| this.bytes = new byte[ArrayUtil.Oversize(cp, 1)]; |
| this.Length = 0; |
| } |
| |
| public override void WriteByte(byte b) |
| { |
| if (Length >= bytes.Length) |
| { |
| bytes = ArrayUtil.Grow(bytes); |
| } |
| bytes[Length++] = b; |
| } |
| |
| public override void WriteBytes(byte[] b, int off, int len) |
| { |
| int newLength = Length + len; |
| bytes = ArrayUtil.Grow(bytes, newLength); |
| System.Buffer.BlockCopy(b, off, bytes, Length, len); |
| Length = newLength; |
| } |
| } |
| } |