72 lines
1.7 KiB
C#
72 lines
1.7 KiB
C#
/*
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* Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using System.IO;
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using System.Text;
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using SafeExamBrowser.Contracts.Configuration;
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using SafeExamBrowser.Contracts.Logging;
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namespace SafeExamBrowser.Core.Logging
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{
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public class LogFileWriter : ILogObserver
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{
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private static readonly object @lock = new object();
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private readonly string filePath;
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public LogFileWriter(ISettings settings)
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{
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var fileName = $"{DateTime.Now.ToString("yyyy-MM-dd HH\\hmm\\mss\\s")}.txt";
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if (!Directory.Exists(settings.LogFolderPath))
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{
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Directory.CreateDirectory(settings.LogFolderPath);
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}
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filePath = Path.Combine(settings.LogFolderPath, fileName);
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}
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public void Notify(ILogContent content)
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{
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if (content is ILogText)
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{
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WriteLogText(content as ILogText);
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}
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if (content is ILogMessage)
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{
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WriteLogMessage(content as ILogMessage);
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}
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}
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private void WriteLogText(ILogText text)
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{
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Write(text.Text);
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}
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private void WriteLogMessage(ILogMessage message)
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{
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var date = message.DateTime.ToString("yyyy-MM-dd HH:mm:ss.fff");
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var severity = message.Severity.ToString().ToUpper();
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var threadInfo = $"{message.ThreadInfo.Id}{(message.ThreadInfo.HasName ? ": " + message.ThreadInfo.Name : string.Empty)}";
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Write($"{date} [{threadInfo}] - {severity}: {message.Message}");
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}
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private void Write(string content)
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{
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lock (@lock)
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{
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using (var stream = new StreamWriter(filePath, true, Encoding.UTF8))
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{
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stream.WriteLine(content);
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}
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}
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}
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}
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}
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