Added sysLogServer functionality

EonaCat.Logger/Enums.cs

@@ -1,4 +1,6 @@
-namespace EonaCat.Logger
+using Microsoft.Extensions.Logging;
+
+namespace EonaCat.Logger
 {
     // This file is part of the EonaCat project(s) which is released under the Apache License.
     // See the LICENSE file or go to https://EonaCat.com/License for full license details.
@@ -14,4 +16,84 @@
         CRITICAL = 6,
         TRACE = 7
     }
+
+    public static class LogTypeConverter
+    {
+        public static ELogType FromLogLevel(this LogLevel logLevel)
+        {
+            switch (logLevel)
+            {
+                case LogLevel.None:
+                    return ELogType.NONE;
+                case LogLevel.Error:
+                    return ELogType.ERROR;
+                case LogLevel.Debug:
+                    return ELogType.DEBUG;
+                case LogLevel.Critical:
+                    return ELogType.CRITICAL;
+                case LogLevel.Warning:
+                    return ELogType.WARNING;
+                case LogLevel.Trace:
+                    return ELogType.TRACE;
+                default:
+                    return ELogType.INFO;
+            }
+        }
+
+        public static ELogType FromSeverity(this ESeverity logLevel)
+        {
+            switch (logLevel)
+            {
+                case ESeverity.Debug:
+                    return ELogType.DEBUG;
+                case ESeverity.Warn:
+                    return ELogType.WARNING;
+                case ESeverity.Emergency:
+                    return ELogType.CRITICAL;
+                case ESeverity.Critical:
+                    return ELogType.CRITICAL;
+                case ESeverity.Alert:
+                    return ELogType.ERROR;
+                case ESeverity.Error:
+                    return ELogType.ERROR;
+                default:
+                    return ELogType.INFO;
+            }
+        }
+    }
+
+    /// <summary>
+    /// Message severity.
+    /// </summary>
+    public enum ESeverity
+    {
+        /// <summary>
+        /// Debug messages.
+        /// </summary>
+        Debug = 0,
+        /// <summary>
+        /// Informational messages.
+        /// </summary>
+        Info = 1,
+        /// <summary>
+        /// Warning messages.
+        /// </summary>
+        Warn = 2,
+        /// <summary>
+        /// Error messages.
+        /// </summary>
+        Error = 3,
+        /// <summary>
+        /// Alert messages.
+        /// </summary>
+        Alert = 4,
+        /// <summary>
+        /// Critical messages.
+        /// </summary>
+        Critical = 5,
+        /// <summary>
+        /// Emergency messages.
+        /// </summary>
+        Emergency = 6
+    }
 }

EonaCat.Logger/EonaCat.Logger.csproj

@@ -8,7 +8,7 @@
       net6.0;
     </TargetFrameworks>
     <ApplicationIcon>icon.ico</ApplicationIcon>
-    <Version>1.0.0</Version>
+    <Version>1.0.1</Version>
     <Authors>EonaCat (Jeroen Saey)</Authors>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Company>EonaCat (Jeroen Saey)</Company>
@@ -23,6 +23,8 @@
     <GenerateDocumentationFile>True</GenerateDocumentationFile>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <PackageRequireLicenseAcceptance>True</PackageRequireLicenseAcceptance>
+    <Title>EonaCat.Logger</Title>
+    <RepositoryType>git</RepositoryType>
   </PropertyGroup>
 
   <ItemGroup>

EonaCat.Logger/EonaCatCoreLogger/Extensions/FileLoggerFactoryExtensions.cs

@@ -16,20 +16,20 @@ namespace EonaCat.Logger.Extensions
         /// Adds a file logger named 'File' to the factory.
         /// </summary>
         /// <param name="builder">The <see cref="ILoggingBuilder"/> to use.</param>
-        public static ILoggingBuilder AddFile(this ILoggingBuilder builder)
+        public static ILoggingBuilder AddEonaCatFileLogger(this ILoggingBuilder builder)
         {
             builder.Services.AddSingleton<ILoggerProvider, FileLoggerProvider>();
             return builder;
         }
 
         /// <summary>
-        /// Adds a file logger named 'File' to the factory.
+        /// Adds the EonaCat File Logger named 'EonaCatFileLogger' to the factory.
         /// </summary>
         /// <param name="builder">The <see cref="ILoggingBuilder"/> to use.</param>
         /// <param name="filenamePrefix">Sets the filename prefix to use for log files</param>
-        public static ILoggingBuilder AddFile(this ILoggingBuilder builder, string filenamePrefix)
+        public static ILoggingBuilder AddEonaCatFileLogger(this ILoggingBuilder builder, string filenamePrefix)
         {
-            builder.AddFile(options => options.FileNamePrefix = filenamePrefix);
+            builder.AddEonaCatFileLogger(options => options.FileNamePrefix = filenamePrefix);
             return builder;
         }
 
@@ -38,13 +38,13 @@ namespace EonaCat.Logger.Extensions
         /// </summary>
         /// <param name="builder">The <see cref="ILoggingBuilder"/> to use.</param>
         /// <param name="configure">Configure an instance of the <see cref="FileLoggerOptions" /> to set logging options</param>
-        public static ILoggingBuilder AddFile(this ILoggingBuilder builder, Action<FileLoggerOptions> configure)
+        public static ILoggingBuilder AddEonaCatFileLogger(this ILoggingBuilder builder, Action<FileLoggerOptions> configure)
         {
             if (configure == null)
             {
                 throw new ArgumentNullException(nameof(configure));
             }
-            builder.AddFile();
+            builder.AddEonaCatFileLogger();
             builder.Services.Configure(configure);
 
             return builder;

EonaCat.Logger/EonaCatCoreLogger/FileLoggerOptions.cs

@@ -15,6 +15,7 @@ namespace EonaCat.Logger
         private int _fileSizeLimit = 200 * 1024 * 1024;
         private int _retainedFileCountLimit = 50;
         private int _maxRolloverFiles = 10;
+        private int _maxTries = 3;
 
         public static string DefaultPath => AppDomain.CurrentDomain.RelativeSearchPath ?? AppDomain.CurrentDomain.BaseDirectory;
 
@@ -55,6 +56,20 @@ namespace EonaCat.Logger
             }
         }
 
+        /// <summary>
+        /// Gets or sets the max times to try to write to the file.
+        /// Defaults 3.
+        /// </summary>
+        public int MaxWriteTries
+        {
+            get => _maxTries;
+
+            set
+            {
+                _maxTries = value;
+            }
+        }
+
         /// <summary>
         /// Gets or sets a strictly positive value representing the maximum retained file rollovers or null for no limit.
         /// Defaults to <c>10</c>.

EonaCat.Logger/EonaCatCoreLogger/FileLoggerProvider.cs

@@ -1,9 +1,11 @@
 using EonaCat.Logger.Internal;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Runtime;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -23,9 +25,37 @@ namespace EonaCat.Logger
         private readonly int _maxFileSize;
         private readonly int _maxRetainedFiles;
         private readonly int _maxRolloverFiles;
+        private readonly int _maxTries;
         private int _rollOverCount = 0;
+        private static readonly object _writeLock = new object();
+        private string _logFile;
 
-        public string LogFile { get; private set; }
+        /// <summary>
+        /// The file to which log messages should be appended.
+        /// </summary>
+        public string LogFile
+        {
+            get
+            {
+                return _logFile;
+            }
+            set
+            {
+                _logFile = value;
+
+                if (!string.IsNullOrEmpty(_logFile))
+                {
+                    string dir = Path.GetDirectoryName(_logFile);
+                    if (!string.IsNullOrEmpty(dir))
+                    {
+                        if (!Directory.Exists(dir))
+                        {
+                            Directory.CreateDirectory(dir);
+                        }
+                    }
+                }
+            }
+        }
 
         /// <summary>
         /// Creates an instance of the <see cref="FileLoggerProvider" />
@@ -39,6 +69,7 @@ namespace EonaCat.Logger
             _maxFileSize = loggerOptions.FileSizeLimit;
             _maxRetainedFiles = loggerOptions.RetainedFileCountLimit;
             _maxRolloverFiles = loggerOptions.MaxRolloverFiles;
+            _maxTries = loggerOptions.MaxWriteTries;
         }
 
         /// <inheritdoc />
@@ -77,11 +108,31 @@ namespace EonaCat.Logger
                     }
                 }
 
-                using (StreamWriter streamWriter = File.AppendText(LogFile))
+                lock (_writeLock)
                 {
-                    foreach (LogMessage item in group)
+                    int tries = 0;
+                    bool completed = false;
+
+                    while (!completed)
                     {
-                        await streamWriter.WriteAsync(item.Message);
+                        try
+                        {
+                            System.IO.StreamWriter file = new System.IO.StreamWriter(LogFile, true);
+                            foreach (LogMessage item in group)
+                            {
+                                file.WriteAsync(item.Message);
+                            }
+
+                            file.Close();
+                            completed = true;
+                        }
+                        catch (Exception exc)
+                        {
+                            tries++;
+                            Task.Delay(100);
+                            if (tries >= _maxTries)
+                                throw;
+                        }
                     }
                 }
             }

EonaCat.Logger/EonaCatCoreLogger/Internal/BatchingLogger.cs

@@ -1,4 +1,5 @@
-using Microsoft.Extensions.Logging;
+using EonaCat.logger.Managers;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Text;
 
@@ -25,35 +26,21 @@ namespace EonaCat.Logger.Internal
 
         public bool IsEnabled(LogLevel logLevel)
         {
-            if (logLevel == LogLevel.None)
-            {
-                return false;
-            }
-            return true;
+            return logLevel != LogLevel.None;
         }
 
         public void Log<TState>(DateTimeOffset timestamp, LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
         {
-            if (!IsEnabled(logLevel))
-            {
-                return;
-            }
+            if (!IsEnabled(logLevel)) return;
 
-            StringBuilder builder = new StringBuilder();
-            builder.Append(timestamp.ToString("yyyy-MM-dd HH:mm:ss.fff zzz"));
-            builder.Append(" [");
-            builder.Append(logLevel.ToString());
-            builder.Append("] ");
-            builder.Append(_category);
-            builder.Append(": ");
-            builder.AppendLine(formatter(state, exception));
+            var message = LogHelper.FormatMessageWithHeader(new Managers.LoggerSettings(), logLevel.FromLogLevel(), formatter(state, exception)) + Environment.NewLine;
 
             if (exception != null)
             { 
-                builder.AppendLine(exception.ToString());
+                message = exception.FormatExceptionToMessage() + Environment.NewLine;
             }
 
-            _provider.AddMessage(timestamp, builder.ToString());
+            _provider.AddMessage(timestamp, message);
         }
 
         public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)

EonaCat.Logger/EonaCatCoreLogger/Internal/BatchingLoggerProvider.cs

@@ -90,7 +90,7 @@ namespace EonaCat.Logger.Internal
                 }
                 catch
                 {
-                    //cancellation token canceled or CompleteAdding called
+                    // cancellation token canceled or CompleteAdding called
                 }
             }
         }
@@ -128,6 +128,12 @@ namespace EonaCat.Logger.Internal
         public void Dispose()
         {
             Stop();
+            GC.SuppressFinalize(this);
+        }
+
+        ~BatchingLoggerProvider()
+        {
+            Dispose();
         }
 
         public ILogger CreateLogger(string categoryName)

EonaCat.Logger/EonaCatCoreLogger/Models/EonaCatLogMessage.cs

@@ -9,13 +9,13 @@ namespace EonaCatLogger.EonaCatCoreLogger.Models
 
     public class EonaCatLogMessage
     {
-        public DateTime DateTime { get; internal set; }
-        public string Message { get; internal set; }
-        public ELogType LogType { get; internal set; }
+        public DateTime DateTime { get; set; }
+        public string Message { get; set; }
+        public ELogType LogType { get; set; }
 
         public override string ToString()
         {
-            return $"[{EnumHelper<ELogType>.ToString(LogType)}] [{DateTime.ToString(Constants.DateTimeFormats.LOGGING)}] {Message}";
+            return $"[{DateTime.ToString(Constants.DateTimeFormats.LOGGING)}] [{EnumHelper<ELogType>.ToString(LogType)}] {Message}";
         }
     }
 }

EonaCat.Logger/Exceptions/EonaCatLoggerAssertionException.cs

@@ -0,0 +1,9 @@
+using System;
+
+namespace EonaCat.Logger.Exceptions
+{
+    public class EonaCatLoggerAssertionException : Exception
+    {
+        public EonaCatLoggerAssertionException(string message) : base(message) { }
+    }
+}

EonaCat.Logger/Managers/ColorSchema.cs

@@ -0,0 +1,74 @@
+using System;
+
+namespace EonaCat.Logger.Managers
+{
+    /// <summary>
+    /// Colors to use when writing to the console.
+    /// </summary>
+    public class ColorSchema
+    {
+        private ConsoleColor currentForeground = Console.ForegroundColor;
+
+        /// <summary>
+        /// The color to use for debug messages.  Default is dark gray on black.
+        /// </summary>
+        public ColorScheme Debug = new ColorScheme(ConsoleColor.DarkGray, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for informational messages.  Default is gray on black.
+        /// </summary>
+        public ColorScheme Info = new ColorScheme(ConsoleColor.Gray, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for warning messages.  Default is dark red on black.
+        /// </summary>
+        public ColorScheme Warning = new ColorScheme(ConsoleColor.DarkRed, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for error messages.  Default is red on black.
+        /// </summary>
+        public ColorScheme Error = new ColorScheme(ConsoleColor.Red, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for alert messages.  Default is dark yellow on black.
+        /// </summary>
+        public ColorScheme Traffic = new ColorScheme(ConsoleColor.DarkYellow, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for critical messages.  Default is yellow on black.
+        /// </summary>
+        public ColorScheme Critical = new ColorScheme(ConsoleColor.Yellow, ConsoleColor.Black);
+
+        /// <summary>
+        /// The color to use for emergency messages.  Default is white on red.
+        /// </summary>
+        public ColorScheme Trace = new ColorScheme(ConsoleColor.White, ConsoleColor.Red);
+    }
+
+    /// <summary>
+    /// Color scheme for logging messages.
+    /// </summary>
+    public class ColorScheme
+    {
+        /// <summary>
+        /// Foreground color.
+        /// </summary>
+        public ConsoleColor Foreground = Console.ForegroundColor;
+
+        /// <summary>
+        /// Background color.
+        /// </summary>
+        public ConsoleColor Background = Console.BackgroundColor;
+
+        /// <summary>
+        /// Instantiates a new color scheme.
+        /// </summary>
+        /// <param name="foreground">Foreground color.</param>
+        /// <param name="background">Background color.</param>
+        public ColorScheme(ConsoleColor foreground, ConsoleColor background)
+        {
+            Foreground = foreground;
+            Background = background;
+        }
+    }
+}

EonaCat.Logger/Managers/EFileLoggingMode.cs

@@ -0,0 +1,8 @@
+namespace EonaCat.Logger.Managers
+{
+    public enum EFileLoggingMode
+    {
+        Enabled = 0,
+        Disabled = 1,
+    }
+}

EonaCat.Logger/Managers/ILogManager.cs

@@ -0,0 +1,7 @@
+namespace EonaCat.Logger.Managers
+{
+    public interface ILogManager
+    {
+        void Write(string message, ELogType logType = ELogType.INFO, ELogType? logLevel = null);
+    }
+}

EonaCat.Logger/Managers/LogHelper.cs

@@ -0,0 +1,292 @@
+using EonaCat.Logger;
+using EonaCat.Logger.Managers;
+using EonaCat.Logger.Syslog;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace EonaCat.logger.Managers
+{
+    public static class LogHelper
+    {
+        private static readonly object _fileLock = new object();
+
+        /// <summary>
+        /// Format a message with the specified header
+        /// </summary>
+        /// <param name="settings">Logger settings</param>
+        /// <param name="logType">logtype for the formatted message</param>
+        /// <param name="currentMessage">The actual message to format with the header</param>
+        /// <returns></returns>
+        public static string FormatMessageWithHeader(LoggerSettings settings, ELogType logType, string currentMessage)
+        {
+            if (string.IsNullOrWhiteSpace(currentMessage))
+            {
+                return currentMessage;
+            }
+
+            if (settings == null)
+            {
+                return "[EonaCatLogger]" + " " + currentMessage;
+            }
+
+            string header = settings.HeaderFormat;
+            if (header.Contains("{ts}"))
+            {
+                header = header.Replace("{ts}", DateTime.Now.ToUniversalTime().ToString(settings.TimestampFormat));
+            }
+
+            if (header.Contains("{host}"))
+            {
+                header = header.Replace("{host}", Dns.GetHostName());
+            }
+
+            if (header.Contains("{thread}"))
+            {
+                header = header.Replace("{thread}", Thread.CurrentThread.ManagedThreadId.ToString());
+            }
+
+            if (header.Contains("{sev}"))
+            {
+                header = header.Replace("{sev}", logType.ToString());
+            }
+
+            string fullMessage = "[EonaCatLogger]" + " " + header + " " + currentMessage;
+            return fullMessage;
+        }
+
+        /// <summary>
+        /// Formats a given exception as a string
+        /// </summary>
+        /// <param name="exception">exception</param>
+        /// <param name="module">The name of the module which called the code (optional)</param>
+        /// <param name="method">The name of the method which waws called in code (optional)</param>
+        /// <returns></returns>
+        public static string FormatExceptionToMessage(this Exception exception, string module = null, string method = null)
+        {
+            if (exception == null) return string.Empty;
+            var st = new StackTrace(exception, true);
+            var frame = st.GetFrame(0);
+            int fileLine = frame.GetFileLineNumber();
+            string filename = frame.GetFileName();
+
+            string message =
+                Environment.NewLine +
+                "--- [EonaCatLogger] Exception details ---" + Environment.NewLine +
+                (!string.IsNullOrEmpty(module) ? "  Module     : " + module + Environment.NewLine : "") +
+                (!string.IsNullOrEmpty(method) ? "  Method     : " + method + Environment.NewLine : "") +
+                "  Type       : " + exception.GetType().ToString() + Environment.NewLine;
+
+            if (exception.Data != null && exception.Data.Count > 0)
+            {
+                message += "  Data       : " + Environment.NewLine;
+                foreach (DictionaryEntry curr in exception.Data)
+                {
+                    message += "  | " + curr.Key + ": " + curr.Value + Environment.NewLine;
+                }
+            }
+            else
+            {
+                message += "  Data       : (none)" + Environment.NewLine;
+            }
+
+            message +=
+                "  Inner      : ";
+
+            if (exception.InnerException == null) message += "(null)" + Environment.NewLine;
+            else
+            {
+                message += exception.InnerException.GetType().ToString() + Environment.NewLine;
+                message +=
+                    "    Message    : " + exception.InnerException.Message + Environment.NewLine +
+                    "    Source     : " + exception.InnerException.Source + Environment.NewLine +
+                    "    StackTrace : " + exception.InnerException.StackTrace + Environment.NewLine +
+                    "    ToString   : " + exception.InnerException.ToString() + Environment.NewLine;
+
+                if (exception.InnerException.Data != null && exception.InnerException.Data.Count > 0)
+                {
+                    message += "    Data       : " + Environment.NewLine;
+                    foreach (DictionaryEntry curr in exception.Data)
+                    {
+                        message += "    | " + curr.Key + ": " + curr.Value + Environment.NewLine;
+                    }
+                }
+                else
+                {
+                    message += "    Data       : (none)" + Environment.NewLine;
+                }
+            }
+
+            message +=
+                "  Message    : " + exception.Message + Environment.NewLine +
+                "  Source     : " + exception.Source + Environment.NewLine +
+                "  StackTrace : " + exception.StackTrace + Environment.NewLine +
+                "  Line       : " + fileLine + Environment.NewLine +
+                "  File       : " + filename + Environment.NewLine +
+                "  ToString   : " + exception.ToString() + Environment.NewLine +
+                "---";
+            return message;
+        }
+
+        internal static void SendConsole(LoggerSettings settings, ELogType logType, string message)
+        {
+            if (settings == null) return;
+            if (!settings.EnableConsole) return;
+            if (string.IsNullOrWhiteSpace(message)) return;
+
+            if (settings.EnableColors)
+            {
+                ConsoleColor prevForeground = Console.ForegroundColor;
+                ConsoleColor prevBackground = Console.BackgroundColor;
+
+                if (settings.Colors != null)
+                {
+                    switch (logType)
+                    {
+                        case ELogType.DEBUG:
+                            Console.ForegroundColor = settings.Colors.Debug.Foreground;
+                            Console.BackgroundColor = settings.Colors.Debug.Background;
+                            break;
+                        case ELogType.INFO:
+                            Console.ForegroundColor = settings.Colors.Info.Foreground;
+                            Console.BackgroundColor = settings.Colors.Info.Background;
+                            break;
+                        case ELogType.WARNING:
+                            Console.ForegroundColor = settings.Colors.Warning.Foreground;
+                            Console.BackgroundColor = settings.Colors.Warning.Background;
+                            break;
+                        case ELogType.ERROR:
+                            Console.ForegroundColor = settings.Colors.Error.Foreground;
+                            Console.BackgroundColor = settings.Colors.Error.Background;
+                            break;
+                        case ELogType.TRAFFIC:
+                            Console.ForegroundColor = settings.Colors.Traffic.Foreground;
+                            Console.BackgroundColor = settings.Colors.Traffic.Background;
+                            break;
+                        case ELogType.CRITICAL:
+                            Console.ForegroundColor = settings.Colors.Critical.Foreground;
+                            Console.BackgroundColor = settings.Colors.Critical.Background;
+                            break;
+                        case ELogType.TRACE:
+                            Console.ForegroundColor = settings.Colors.Trace.Foreground;
+                            Console.BackgroundColor = settings.Colors.Trace.Background;
+                            break;
+                    }
+                }
+
+                Console.WriteLine(message);
+                Console.ForegroundColor = prevForeground;
+                Console.BackgroundColor = prevBackground;
+            }
+            else
+            {
+                Console.WriteLine(message);
+            }
+        }
+
+        internal static void SendFile(ILogger logger, LoggerSettings settings, ELogType logType, string message, int maxTries = 3)
+        {
+            lock (_fileLock)
+            {
+                if (logger == null) return;
+                if (settings == null) return;
+                if (!settings.EnableFileLogging) return;
+                if (string.IsNullOrWhiteSpace(message)) return;
+                //logger.LogInformation(message);
+
+                int tries = 0;
+                bool completed = false;
+                while (!completed)
+                {
+                    try
+                    {
+                        System.IO.StreamWriter file = new System.IO.StreamWriter($"{settings.FileLoggerOptions.LogDirectory}{Path.DirectorySeparatorChar}{settings.FileLoggerOptions.FileNamePrefix}_{DateTime.Now.ToString("yyyyMMdd")}.log", true);
+                        file.Write(message + Environment.NewLine);
+                        file.Close();
+                        completed = true;
+                    }
+                    catch (Exception exc)
+                    {
+                        tries++;
+                        Task.Delay(100);
+                        if (tries >= maxTries)
+                            throw;
+                    }
+                }
+                return;
+
+                if (logType == ELogType.CRITICAL)
+                {
+                    logger.LogCritical(message);
+                }
+                else if (logType == ELogType.DEBUG)
+                {
+                    logger.LogDebug(message);
+                }
+                else if (logType == ELogType.ERROR)
+                {
+                    logger.LogError(message);
+                }
+                else if (logType == ELogType.INFO)
+                {
+                    logger.LogInformation(message);
+                }
+                else if (logType == ELogType.TRACE)
+                {
+                    logger.LogTrace(message);
+                }
+                else if (logType == ELogType.TRAFFIC)
+                {
+                    logger.LogTrace($"[TRAFFIC] {message}");
+                }
+                else if (logType == ELogType.WARNING)
+                {
+                    logger.LogWarning(message);
+                }
+            }
+        }
+
+        internal static void SendToSysLogServers(LoggerSettings settings, string message)
+        {
+            if (settings == null) return;
+            if (!settings.SendToSyslogServers) return;
+            if (settings.SysLogServers == null) return;
+            if (!settings.SysLogServers.Any()) return;
+            if (string.IsNullOrWhiteSpace(message)) return;
+
+            byte[] data = Encoding.UTF8.GetBytes(message);
+
+            var sysLogServers = settings.SysLogServers.ToList();
+            foreach (SyslogServer server in sysLogServers)
+            {
+                lock (server.SendLock)
+                {
+                    if (string.IsNullOrWhiteSpace(server.Hostname))
+                    {
+                        Console.WriteLine("Server hostname not specified, skipping syslog server");
+                    }
+                    if (server.Port < 0)
+                    {
+                        Console.WriteLine("Server port must be zero or greater, skipping syslog server");
+                    }
+
+                    try
+                    {
+                        server.Udp.Send(data, data.Length);
+                    }
+                    catch (Exception)
+                    {
+
+                    }
+                }
+            }
+        }
+    }
+}

EonaCat.Logger/Managers/LogManager.cs

@@ -1,13 +1,17 @@
-using EonaCat.Extensions;
+using EonaCat.logger.Managers;
+using EonaCat.Logger.Exceptions;
 using EonaCat.Logger.Extensions;
 using EonaCat.Logger.Helpers;
+using EonaCat.Logger.Syslog;
 using EonaCatLogger.EonaCatCoreLogger.Models;
-using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
-using System.Text;
+using System.Net;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -16,11 +20,15 @@ namespace EonaCat.Logger.Managers
     // This file is part of the EonaCat project(s) which is released under the Apache License.
     // See the LICENSE file or go to https://EonaCat.com/License for full license details.
 
-    public class LogManager : IDisposable
+    public partial class LogManager : ILogManager, IDisposable
     {
         private readonly object _batton = new object();
         private DateTime _logDate;
+        public event LogDelegate OnLog;
+        public delegate void LogDelegate(LogManager logger, ELogType logLevel, EonaCatLogMessage message);
 
+
+        public ELogType LogType;
         private ILoggerProvider LoggerProvider { get; set; }
         private ILoggerFactory LoggerFactory { get; set; }
         private ILogger Logger { get; set; }
@@ -29,13 +37,50 @@ namespace EonaCat.Logger.Managers
         public bool IsRunning { get; private set; }
 
         public StreamWriter Output { get; private set; }
-        public string LogFolderPath { get; set; } = "logs";
-        public FileLoggerOptions FileLoggerOptions { get; private set; }
-        public int FileSizeLimit { get; set; } = 200 * 1024 * 1024;
+        
         public string CategoryName { get; set; }
-        private LogManager Instance { get; set; }
+
+        public readonly string Id;
 
         private bool _disposed;
+        private static LogManager _instance;
+        private LoggerSettings _settings;
+        private CancellationTokenSource _TokenSource = new CancellationTokenSource();
+        private CancellationToken _Token;
+
+        /// <summary>
+        /// Default Logger Instance with it's default configuration
+        /// </summary>
+        public static LogManager Instance => InstanceInit();
+
+        /// <summary>
+        /// Logging settings.
+        /// </summary>
+        public LoggerSettings Settings
+        {
+            get
+            {
+                if (_settings == null)
+                {
+                    _settings = new LoggerSettings();
+                }
+                return _settings;
+            }
+
+            set
+            {
+                _settings = value;
+            }
+        }
+
+        private static LogManager InstanceInit()
+        {
+            if (_instance == null)
+            {
+                _instance = new LogManager(null, id: "EonaCat");
+            }
+            return _instance;
+        }
 
         protected virtual void Dispose(bool disposing)
         {
@@ -49,47 +94,20 @@ namespace EonaCat.Logger.Managers
                 if (disposing)
                 {
                     StopLogging();
+                    _TokenSource.Cancel();
                 }
 
                 _disposed = true;
             }
         }
 
-        public void Dispose()
-        {
-            Dispose(true);
-        }
-
-        public static async Task DownloadLogAsync(HttpResponse response, string logFile, long limit)
-        {
-            using (FileStream fileStream = new FileStream(logFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
-            {
-                response.ContentType = "text/plain";
-                response.Headers.Add("Content-Disposition", "attachment;filename=" + Path.GetFileName(logFile));
-
-                if (limit > fileStream.Length)
-                {
-                    limit = fileStream.Length;
-                }
-
-                using (OffsetStream offsetStream = new OffsetStream(fileStream, 0, limit))
-                {
-                    using (Stream stream = response.Body)
-                    {
-                        offsetStream.CopyTo(stream);
-
-                        if (fileStream.Length > limit)
-                        {
-                            byte[] buffer = Encoding.UTF8.GetBytes("####___EonaCatLogger_TRUNCATED___####");
-                            await stream.WriteAsync(buffer, 0, buffer.Length);
-                        }
-                    }
-                }
-            }
-        }
-
         private void StartNewLog()
         {
+            if (_TokenSource.IsCancellationRequested)
+            {
+                return;
+            }
+
             DateTime now = DateTime.Now;
 
             if (IsRunning && now.Date > _logDate.Date)
@@ -99,143 +117,157 @@ namespace EonaCat.Logger.Managers
             IsRunning = true;
 
             IServiceCollection serviceCollection = new ServiceCollection();
-            CreateDefaultFileLoggerOptions();
-
-            serviceCollection.AddLogging(builder => builder.AddFile(configuration =>
+            serviceCollection.AddLogging(builder => builder.AddEonaCatFileLogger(configuration =>
             {
-                configuration.BackgroundQueueSize = FileLoggerOptions.BackgroundQueueSize;
-                configuration.BatchSize = FileLoggerOptions.BatchSize;
-                configuration.FileNamePrefix = FileLoggerOptions.FileNamePrefix;
-                configuration.FileSizeLimit = FileLoggerOptions.FileSizeLimit;
-                configuration.FlushPeriod = FileLoggerOptions.FlushPeriod;
-                configuration.IsEnabled = FileLoggerOptions.IsEnabled;
-                configuration.LogDirectory = FileLoggerOptions.LogDirectory;
-                configuration.RetainedFileCountLimit = FileLoggerOptions.RetainedFileCountLimit;
+                configuration = Settings.FileLoggerOptions;
             }));
 
             var serviceProvider = serviceCollection.BuildServiceProvider();
             LoggerProvider = serviceProvider.GetService<ILoggerProvider>();
             LoggerFactory = serviceProvider.GetService<ILoggerFactory>();
+
             CategoryName = CategoryName ?? string.Empty;
             Logger = LoggerFactory.CreateLogger(CategoryName);
 
-            if (!Directory.Exists(FileLoggerOptions.LogDirectory))
+            if (!Directory.Exists(Settings.FileLoggerOptions.LogDirectory))
             {
-                Directory.CreateDirectory(FileLoggerOptions.LogDirectory);
+                Directory.CreateDirectory(Settings.FileLoggerOptions.LogDirectory);
             }
 
             _logDate = now;
 
-            Write(now, "EonaCatLogger started.");
+            Write(now, $"{DllInfo.ApplicationName} started.");
         }
 
-        private void CreateDefaultFileLoggerOptions()
+        public void Assert(bool condition, string message)
         {
-            if (FileLoggerOptions == null)
+            if (!condition)
             {
-                FileLoggerOptions = new FileLoggerOptions
-                {
-                    LogDirectory = LogFolderPath,
-                    FileSizeLimit = FileSizeLimit
-                };
-            }
-        }
-
-        private void WriteToFile(EonaCatLogMessage EonaCatLogMessage)
-        {
-            if (EonaCatLogMessage.LogType == ELogType.CRITICAL)
-            {
-                Instance.Logger.LogCritical(EonaCatLogMessage.Message);
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.DEBUG)
-            {
-                Instance.Logger.LogDebug(EonaCatLogMessage.Message);
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.ERROR)
-            {
-                Instance.Logger.LogError(EonaCatLogMessage.Message);
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.INFO)
-            {
-                Instance.Logger.LogInformation(EonaCatLogMessage.Message);
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.TRACE)
-            {
-                Instance.Logger.LogTrace(EonaCatLogMessage.Message);
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.TRAFFIC)
-            {
-                Instance.Logger.LogTrace($"[TRAFFIC] {EonaCatLogMessage.Message}");
-            }
-            else if (EonaCatLogMessage.LogType == ELogType.WARNING)
-            {
-                Instance.Logger.LogWarning(EonaCatLogMessage.Message);
+                throw new EonaCatLoggerAssertionException(message);
             }
         }
 
         private void Write(DateTime dateTime, string message, ELogType logType = ELogType.INFO)
         {
-            var EonaCatMessage = new EonaCatLogMessage { DateTime = dateTime, Message = message, LogType = logType };
-            WriteToFile(EonaCatMessage);
+            if (string.IsNullOrWhiteSpace(message)) return;
+            if (logType < ELogType.INFO) return;
+
+            string remainder = "";
+            string currentMessage;
+
+            if (message.Length > _settings.MaxMessageLength)
+            {
+                currentMessage = message.Substring(0, _settings.MaxMessageLength);
+                remainder = message.Substring(_settings.MaxMessageLength, (message.Length - _settings.MaxMessageLength));
+            }
+            else
+            {
+                currentMessage = message;
+            }
+
+            var fullMessage = LogHelper.FormatMessageWithHeader(_settings, logType, currentMessage);
+
+            LogHelper.SendConsole(_settings, logType, fullMessage);
+
+            LogHelper.SendFile(Logger, _settings, logType, fullMessage);
+
+            LogHelper.SendToSysLogServers(_settings, fullMessage);
+
+            if (!string.IsNullOrEmpty(remainder))
+            {
+                Write(dateTime, remainder, logType);
+            }
+
+            var EonaCatMessage = new EonaCatLogMessage { DateTime = dateTime, Message = currentMessage, LogType = logType };
+            OnLog?.Invoke(this, logType, EonaCatMessage);
         }
 
-        private LogManager()
-        {
-            // Do nothing
-        }
+        public void Reset() => OnLog = null;
 
-        public LogManager(FileLoggerOptions fileLoggerOptions)
+        public LogManager(LoggerSettings settings, string serverIp, int serverPort, string id = "EonaCatLogger")
         {
-            FileLoggerOptions = fileLoggerOptions;
+            if (string.IsNullOrEmpty(serverIp)) throw new ArgumentNullException(nameof(serverIp));
+            if (serverPort < 0) throw new ArgumentException("Server port must be zero or greater.");
+
+            settings.SysLogServers = new List<SyslogServer>();
+            settings.SysLogServers.Add(new SyslogServer(serverIp, serverPort));
+
+            Id = id;
+            Settings = settings;
             SetupLogManager();
         }
 
-        private void SetupLogManager()
+        public LogManager(LoggerSettings settings, string id = "EonaCatLogger")
         {
-            AppDomain.CurrentDomain.ProcessExit += ProcessExit;
-
-            Instance = this;
-
-            _logDate = DateTime.Now;
-
-            StartNewLog();
+            Id = id;
+            Settings = settings;
+            SetupFileLogger(settings, null, true);
+            SetupLogManager();
         }
 
-        private void ProcessExit(object sender, EventArgs e)
+        private void SetupFileLogger(LoggerSettings settings = null, string logFolder = null, bool defaultPrefix = true)
         {
-            Instance?.StopLogging();
-            Thread.Sleep(1000);
-        }
+            if (settings == null)
+            {
+                // Create default loggingSettings
+                Settings = settings;
+                settings = Settings;
+            }
 
-        private void StopLogging()
-        {
-            Write(DateTime.Now, "EonaCatLogger stopped.");
-            IsRunning = false;
-        }
+            if (!settings.EnableFileLogging) return;
             
-        public LogManager(string logFolder = null, bool defaultPrefix = true)
-        {
-            CreateDefaultFileLoggerOptions();
             if (logFolder != null)
             {
-                FileLoggerOptions.LogDirectory = logFolder;
+                Settings.FileLoggerOptions.LogDirectory = logFolder;
             }
 
             if (defaultPrefix)
             {
-                FileLoggerOptions.FileNamePrefix = "EonaCat";
+                Settings.FileLoggerOptions.FileNamePrefix = "EonaCat";
             }
             else
             {
-                FileLoggerOptions.FileNamePrefix = string.Empty;
+                Settings.FileLoggerOptions.FileNamePrefix = string.Empty;
             }
+        }
 
+        private void SetupLogManager()
+        {
+            _Token = _TokenSource.Token;
+            AppDomain.CurrentDomain.ProcessExit += ProcessExit;
+
+            Console.CancelKeyPress += new ConsoleCancelEventHandler(Console_CancelKeyPress);
+
+            _logDate = DateTime.Now;
+        }
+
+        void Console_CancelKeyPress(object sender, ConsoleCancelEventArgs e)
+        {
+            Dispose(true);
+        }
+
+        private void ProcessExit(object sender, EventArgs e)
+        {
+            Dispose(true);
+        }
+
+        private void StopLogging()
+        {
+            IsRunning = false;
+            Write(DateTime.Now, $"{DllInfo.ApplicationName} stopped.");
+            Task.Delay(500);
+        }
+
+        public LogManager(string logFolder = null, bool defaultPrefix = true)
+        {
+            SetupFileLogger(null, logFolder, defaultPrefix);
             SetupLogManager();
         }
 
-        public void Write(Exception exception)
+        public void Write(Exception exception, string module = null, string method = null, bool criticalException = false)
         {
-            Write(exception.ToString());
+            if (exception != null) return;
+            Write(exception.FormatExceptionToMessage(module, method), criticalException ? ELogType.CRITICAL : ELogType.ERROR);
         }
 
         public void Write(string message, ELogType logType = ELogType.INFO, ELogType? logLevel = null)
@@ -256,7 +288,7 @@ namespace EonaCat.Logger.Managers
                         StartNewLog();
                     }
 
-                    Write(now, $"{DllInfo.ApplicationName}: {message}", logType);
+                    Write(now, message, logType);
                 }
             }
         }
@@ -269,8 +301,12 @@ namespace EonaCat.Logger.Managers
                 {
                     File.Delete(CurrentLogFile);
                 }
-                StartNewLog();
             }
         }
+
+        void IDisposable.Dispose()
+        {
+            Dispose(true);
+        }
     }
 }

EonaCat.Logger/Managers/LoggerSettings.cs

@@ -0,0 +1,173 @@
+using System.IO;
+using System;
+using System.Collections.Generic;
+using EonaCat.Logger.Syslog;
+using System.Runtime;
+
+namespace EonaCat.Logger.Managers
+{
+    /// <summary>
+    /// Logger settings.
+    /// </summary>
+    public class LoggerSettings
+    {
+        /// <summary>
+        /// Header format.  Provide a string that specifies how the preamble of each message should be structured.  You can use variables including:
+        /// {ts}: UTC timestamp
+        /// {host}: Hostname
+        /// {thread}: Thread ID
+        /// {sev}: Severity
+        /// Default: {ts} {host} {thread} {sev}
+        /// A space will be inserted between the header and the message.
+        /// </summary>
+        public string HeaderFormat
+        {
+            get
+            {
+                return _HeaderFormat;
+            }
+            set
+            {
+                if (string.IsNullOrEmpty(value)) _HeaderFormat = "";
+                else _HeaderFormat = value;
+            }
+        }
+
+        /// <summary>
+        /// Timestamp format.
+        /// </summary>
+        public string TimestampFormat
+        {
+            get
+            {
+                return _TimestampFormat;
+            }
+            set
+            {
+                if (string.IsNullOrEmpty(value)) throw new ArgumentNullException(nameof(HeaderFormat));
+                _TimestampFormat = value;
+            }
+        }
+
+        /// <summary>
+        /// Enable or disable console logging.  
+        /// Settings this to true will first validate if a console exists. 
+        /// If a console is not available, it will be set to false.
+        /// </summary>
+        public bool EnableConsole
+        {
+            get
+            {
+                return _EnableConsole;
+            }
+            set
+            {
+                if (value) _EnableConsole = ConsoleExists();
+                else _EnableConsole = false;
+            }
+        }
+
+        /// <summary>
+        /// Minimum severity required to send a message.
+        /// </summary>
+        public ESeverity MinimumSeverity { get; set; } = ESeverity.Debug;
+
+        /// <summary>
+        /// Enable or disable use of color for console messages.
+        /// </summary>
+        public bool EnableColors { get; set; } = true;
+
+        /// <summary>
+        /// Colors to use for console messages based on message severity.
+        /// </summary>
+        public ColorSchema Colors
+        {
+            get
+            {
+                return _colors;
+            }
+            set
+            {
+                if (value == null)
+                {
+                    throw new ArgumentNullException(nameof(Colors));
+                }
+                _colors = value;
+            }
+        }
+
+        public bool SendToSyslogServers { get; set; }
+
+        public List<SyslogServer> SysLogServers { get; set; } = new List<SyslogServer> { new SyslogServer("127.0.0.1", 514) };
+
+        /// <summary>
+        /// Determines if the fileLogging is enabled
+        /// </summary>
+        public bool EnableFileLogging { get; set; } = true;
+
+        private FileLoggerOptions _fileLoggerOptions;
+
+        /// <summary>
+        /// FileLogger settings.
+        /// </summary>
+        public FileLoggerOptions FileLoggerOptions
+        {
+            get
+            {
+                if (_fileLoggerOptions == null)
+                {
+                    _fileLoggerOptions = CreateDefaultFileLoggerOptions();
+                }
+                return _fileLoggerOptions;
+            }
+
+            set
+            {
+                _fileLoggerOptions = value;
+            }
+        }
+
+        private FileLoggerOptions CreateDefaultFileLoggerOptions()
+        {
+            return new FileLoggerOptions();
+        }
+
+        /// <summary>
+        /// Maximum message length.  Must be greater than or equal to 32.  Default is 1024.
+        /// </summary>
+        public int MaxMessageLength
+        {
+            get
+            {
+                return _MaxMessageLength;
+            }
+            set
+            {
+                if (value < 32) throw new ArgumentException("Maximum message length must be at least 32.");
+                _MaxMessageLength = value;
+            }
+        }
+
+        private string _HeaderFormat = "{ts} {host} {thread} {sev}";
+        private string _TimestampFormat = "yyyy-MM-dd HH:mm:ss";
+        private bool _EnableConsole = true;
+        private int _MaxMessageLength = 1024;
+        private ColorSchema _colors = new ColorSchema();
+       
+
+        private bool ConsoleExists()
+        {
+            try
+            {
+                bool test1 = Environment.UserInteractive;
+                bool test2 = Console.WindowHeight > 0;
+                return test1 && test2;
+            }
+            catch (Exception)
+            {
+                return false;
+            }
+        }
+
+    }
+}

EonaCat.Logger/Syslog/SyslogServer.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Sockets;
+using System.Text;
+
+namespace EonaCat.Logger.Syslog
+{
+    /// <summary>
+    /// Syslog server.
+    /// </summary>
+    public class SyslogServer
+    {
+        /// <summary>
+        /// Hostname.
+        /// </summary>
+        public string Hostname
+        {
+            get
+            {
+                return _Hostname;
+            }
+            set
+            {
+                if (string.IsNullOrEmpty(value)) throw new ArgumentNullException(nameof(Hostname));
+                _Hostname = value;
+
+                SetUdp();
+            }
+        }
+
+        /// <summary>
+        /// UDP port.
+        /// </summary>
+        public int Port
+        {
+            get
+            {
+                return _Port;
+            }
+            set
+            {
+                if (value < 0) throw new ArgumentException("Port must be zero or greater.");
+                _Port = value;
+
+                SetUdp();
+            }
+        }
+
+        /// <summary>
+        /// IP:port of the server.
+        /// </summary>
+        public string IpPort
+        {
+            get
+            {
+                return _Hostname + ":" + _Port;
+            }
+        }
+
+        internal readonly object SendLock = new object();
+        internal UdpClient Udp = null;
+        private string _Hostname = "127.0.0.1";
+        private int _Port = 514;
+
+        /// <summary>
+        /// Instantiate the object.
+        /// </summary>
+        public SyslogServer()
+        {
+        }
+
+        /// <summary>
+        /// Instantiate the object.
+        /// </summary>
+        /// <param name="hostname">Hostname.</param>
+        /// <param name="port">Port.</param>
+        public SyslogServer(string hostname = "127.0.0.1", int port = 514)
+        {
+            Hostname = hostname;
+            Port = port;
+        }
+
+        private void SetUdp()
+        {
+            Udp = null;
+            Udp = new UdpClient(_Hostname, _Port);
+        }
+    }
+}

README.md

@@ -3,3 +3,11 @@
 EonaCat Logger
 
 Log application information to log files
+
+
+Be sure the following dependencies are added:
+
+Microsoft.Extensions.Logging.Abstractions
+Microsoft.Extensions.DependencyInjection.Abstractions
+Microsoft.Extensions.DependencyInjection
+Microsoft.Extensions.Logging