| using J2N.Threading.Atomic; |
| using Lucene.Net.Support.IO; |
| using System; |
| using System.IO; |
| using System.Runtime.CompilerServices; |
| using System.Threading; |
| using Console = Lucene.Net.Util.SystemConsole; |
| |
| 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. |
| */ |
| |
| /// <summary> |
| /// LUCENENET specific stub to assist with migration to <see cref="TextWriterInfoStream"/>. |
| /// </summary> |
| [Obsolete("Use TextWriterInfoStream in .NET. This class is provided only to assist with the transition.")] |
| public class PrintStreamInfoStream : TextWriterInfoStream |
| { |
| public PrintStreamInfoStream(TextWriter stream) |
| : base(stream) |
| { } |
| |
| public PrintStreamInfoStream(TextWriter stream, int messageID) |
| : base(stream, messageID) |
| { } |
| } |
| |
| /// <summary> |
| /// <see cref="InfoStream"/> implementation over a <see cref="TextWriter"/> |
| /// such as <see cref="System.Console.Out"/>. |
| /// <para/> |
| /// NOTE: This is analogous to PrintStreamInfoStream in Lucene. |
| /// <para/> |
| /// @lucene.internal |
| /// </summary> |
| public class TextWriterInfoStream : InfoStream |
| { |
| // Used for printing messages |
| private static readonly AtomicInt32 MESSAGE_ID = new AtomicInt32(); |
| |
| protected readonly int m_messageID; |
| protected readonly TextWriter m_stream; |
| private readonly bool isSystemStream; |
| |
| public TextWriterInfoStream(TextWriter stream) |
| : this(stream, MESSAGE_ID.GetAndIncrement()) |
| { |
| } |
| |
| public TextWriterInfoStream(TextWriter stream, int messageID) |
| { |
| // LUCENENET: Since we are wrapping our TextWriter to make it safe to use |
| // after calling Dispose(), we need to determine whether it is a system stream |
| // here instead of on demand. |
| this.isSystemStream = stream == Console.Out || stream == Console.Error; |
| this.m_stream = typeof(SafeTextWriterWrapper).IsAssignableFrom(stream.GetType()) ? stream : new SafeTextWriterWrapper(stream); |
| this.m_messageID = messageID; |
| } |
| |
| [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| public override void Message(string component, string message) |
| { |
| m_stream.Write(component + " " + m_messageID + " [" + DateTime.Now + "; " + Thread.CurrentThread.Name + "]: " + message); |
| } |
| |
| [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| public override bool IsEnabled(string component) |
| { |
| return true; |
| } |
| |
| protected override void Dispose(bool disposing) |
| { |
| if (disposing && !IsSystemStream) |
| { |
| m_stream.Dispose(); |
| } |
| } |
| |
| public virtual bool IsSystemStream => isSystemStream; |
| } |
| } |