move dependencies

Emby.Common.Implementations/Logging/NlogManager.cs

@@ -0,0 +1,264 @@
+using System;
+using System.IO;
+using System.Linq;
+using NLog;
+using NLog.Config;
+using NLog.Targets;
+using NLog.Targets.Wrappers;
+using MediaBrowser.Model.Logging;
+
+namespace Emby.Common.Implementations.Logging
+{
+    /// <summary>
+    /// Class NlogManager
+    /// </summary>
+    public class NlogManager : ILogManager
+    {
+        /// <summary>
+        /// Occurs when [logger loaded].
+        /// </summary>
+        public event EventHandler LoggerLoaded;
+        /// <summary>
+        /// Gets or sets the log directory.
+        /// </summary>
+        /// <value>The log directory.</value>
+        private string LogDirectory { get; set; }
+        /// <summary>
+        /// Gets or sets the log file prefix.
+        /// </summary>
+        /// <value>The log file prefix.</value>
+        private string LogFilePrefix { get; set; }
+        /// <summary>
+        /// Gets the log file path.
+        /// </summary>
+        /// <value>The log file path.</value>
+        public string LogFilePath { get; private set; }
+
+        /// <summary>
+        /// Gets or sets the exception message prefix.
+        /// </summary>
+        /// <value>The exception message prefix.</value>
+        public string ExceptionMessagePrefix { get; set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NlogManager" /> class.
+        /// </summary>
+        /// <param name="logDirectory">The log directory.</param>
+        /// <param name="logFileNamePrefix">The log file name prefix.</param>
+        public NlogManager(string logDirectory, string logFileNamePrefix)
+        {
+            LogDirectory = logDirectory;
+            LogFilePrefix = logFileNamePrefix;
+
+			LogManager.Configuration = new LoggingConfiguration ();
+        }
+
+        private LogSeverity _severity = LogSeverity.Debug;
+        public LogSeverity LogSeverity
+        {
+            get
+            {
+                return _severity;
+            }
+            set
+            {
+                var changed = _severity != value;
+
+                _severity = value;
+
+                if (changed)
+                {
+                    UpdateLogLevel(value);
+                }
+            }
+        }
+
+        private void UpdateLogLevel(LogSeverity newLevel)
+        {
+            var level = GetLogLevel(newLevel);
+
+            var rules = LogManager.Configuration.LoggingRules;
+
+            foreach (var rule in rules)
+            {
+                if (!rule.IsLoggingEnabledForLevel(level))
+                {
+                    rule.EnableLoggingForLevel(level);
+                }
+                foreach (var lev in rule.Levels.ToArray())
+                {
+                    if (lev < level)
+                    {
+                        rule.DisableLoggingForLevel(lev);
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Adds the file target.
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <param name="level">The level.</param>
+        private void AddFileTarget(string path, LogSeverity level)
+        {
+			RemoveTarget("ApplicationLogFileWrapper");
+
+			var wrapper = new AsyncTargetWrapper ();
+			wrapper.Name = "ApplicationLogFileWrapper";
+
+			var logFile = new FileTarget
+            {
+                FileName = path,
+                Layout = "${longdate} ${level} ${logger}: ${message}"
+            };
+
+            logFile.Name = "ApplicationLogFile";
+
+			wrapper.WrappedTarget = logFile;
+
+            AddLogTarget(wrapper, level);
+        }
+
+        /// <summary>
+        /// Adds the log target.
+        /// </summary>
+        /// <param name="target">The target.</param>
+        /// <param name="level">The level.</param>
+        public void AddLogTarget(Target target, LogSeverity level)
+        {
+            var config = LogManager.Configuration;
+            config.AddTarget(target.Name, target);
+
+            var rule = new LoggingRule("*", GetLogLevel(level), target);
+            config.LoggingRules.Add(rule);
+
+            LogManager.Configuration = config;
+        }
+
+        /// <summary>
+        /// Removes the target.
+        /// </summary>
+        /// <param name="name">The name.</param>
+        public void RemoveTarget(string name)
+        {
+            var config = LogManager.Configuration;
+
+            var target = config.FindTargetByName(name);
+
+            if (target != null)
+            {
+                foreach (var rule in config.LoggingRules.ToList())
+                {
+                    var contains = rule.Targets.Contains(target);
+
+                    rule.Targets.Remove(target);
+
+                    if (contains)
+                    {
+                        config.LoggingRules.Remove(rule);
+                    }
+                }
+
+                config.RemoveTarget(name);
+                LogManager.Configuration = config;
+            }
+        }
+
+        /// <summary>
+        /// Gets the logger.
+        /// </summary>
+        /// <param name="name">The name.</param>
+        /// <returns>ILogger.</returns>
+        public MediaBrowser.Model.Logging.ILogger GetLogger(string name)
+        {
+            return new NLogger(name, this);
+        }
+
+        /// <summary>
+        /// Gets the log level.
+        /// </summary>
+        /// <param name="severity">The severity.</param>
+        /// <returns>LogLevel.</returns>
+        /// <exception cref="System.ArgumentException">Unrecognized LogSeverity</exception>
+        private LogLevel GetLogLevel(LogSeverity severity)
+        {
+            switch (severity)
+            {
+                case LogSeverity.Debug:
+                    return LogLevel.Debug;
+                case LogSeverity.Error:
+                    return LogLevel.Error;
+                case LogSeverity.Fatal:
+                    return LogLevel.Fatal;
+                case LogSeverity.Info:
+                    return LogLevel.Info;
+                case LogSeverity.Warn:
+                    return LogLevel.Warn;
+                default:
+                    throw new ArgumentException("Unrecognized LogSeverity");
+            }
+        }
+
+        /// <summary>
+        /// Reloads the logger.
+        /// </summary>
+        /// <param name="level">The level.</param>
+        public void ReloadLogger(LogSeverity level)
+        {
+            LogFilePath = Path.Combine(LogDirectory, LogFilePrefix + "-" + decimal.Floor(DateTime.Now.Ticks / 10000000) + ".txt");
+
+			Directory.CreateDirectory(Path.GetDirectoryName(LogFilePath));
+
+            AddFileTarget(LogFilePath, level);
+
+            LogSeverity = level;
+
+            if (LoggerLoaded != null)
+            {
+                try
+                {
+                    LoggerLoaded(this, EventArgs.Empty);
+                }
+                catch (Exception ex)
+                {
+                    GetLogger("Logger").ErrorException("Error in LoggerLoaded event", ex);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Flushes this instance.
+        /// </summary>
+        public void Flush()
+        {
+            LogManager.Flush();
+        }
+
+
+        public void AddConsoleOutput()
+        {
+			RemoveTarget("ConsoleTargetWrapper");
+
+			var wrapper = new AsyncTargetWrapper ();
+			wrapper.Name = "ConsoleTargetWrapper";
+
+            var target = new ConsoleTarget()
+            {
+                Layout = "${level}, ${logger}, ${message}",
+                Error = false
+            };
+
+            target.Name = "ConsoleTarget";
+
+			wrapper.WrappedTarget = target;
+
+			AddLogTarget(wrapper, LogSeverity);
+        }
+
+        public void RemoveConsoleOutput()
+        {
+			RemoveTarget("ConsoleTargetWrapper");
+        }
+    }
+}