corrade-vassal – Rev 1
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/*
* Copyright (c) 2006-2014, openmetaverse.org
* All rights reserved.
*
* - Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Neither the name of the openmetaverse.org nor the names
* of its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using log4net;
using log4net.Config;
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace OpenMetaverse
{
/// <summary>
/// Singleton logging class for the entire library
/// </summary>
public static class Logger
{
/// <summary>
/// Callback used for client apps to receive log messages from
/// the library
/// </summary>
/// <param name="message">Data being logged</param>
/// <param name="level">The severity of the log entry from <seealso cref="Helpers.LogLevel"/></param>
public delegate void LogCallback(object message, Helpers.LogLevel level);
/// <summary>Triggered whenever a message is logged. If this is left
/// null, log messages will go to the console</summary>
public static event LogCallback OnLogMessage;
/// <summary>log4net logging engine</summary>
public static ILog LogInstance;
/// <summary>
/// Default constructor
/// </summary>
static Logger()
{
LogInstance = LogManager.GetLogger("OpenMetaverse");
// If error level reporting isn't enabled we assume no logger is configured and initialize a default
// ConsoleAppender
if (!LogInstance.Logger.IsEnabledFor(log4net.Core.Level.Error))
{
log4net.Appender.ConsoleAppender appender = new log4net.Appender.ConsoleAppender();
appender.Layout = new log4net.Layout.PatternLayout("%timestamp [%thread] %-5level - %message%newline");
BasicConfigurator.Configure(appender);
if(Settings.LOG_LEVEL != Helpers.LogLevel.None)
LogInstance.Info("No log configuration found, defaulting to console logging");
}
}
/// <summary>
/// Send a log message to the logging engine
/// </summary>
/// <param name="message">The log message</param>
/// <param name="level">The severity of the log entry</param>
public static void Log(object message, Helpers.LogLevel level)
{
Log(message, level, null, null);
}
/// <summary>
/// Send a log message to the logging engine
/// </summary>
/// <param name="message">The log message</param>
/// <param name="level">The severity of the log entry</param>
/// <param name="client">Instance of the client</param>
public static void Log(object message, Helpers.LogLevel level, GridClient client)
{
Log(message, level, client, null);
}
/// <summary>
/// Send a log message to the logging engine
/// </summary>
/// <param name="message">The log message</param>
/// <param name="level">The severity of the log entry</param>
/// <param name="exception">Exception that was raised</param>
public static void Log(object message, Helpers.LogLevel level, Exception exception)
{
Log(message, level, null, exception);
}
/// <summary>
/// Send a log message to the logging engine
/// </summary>
/// <param name="message">The log message</param>
/// <param name="level">The severity of the log entry</param>
/// <param name="client">Instance of the client</param>
/// <param name="exception">Exception that was raised</param>
public static void Log(object message, Helpers.LogLevel level, GridClient client, Exception exception)
{
if (client != null && client.Settings.LOG_NAMES)
message = String.Format("<{0}>: {1}", client.Self.Name, message);
if (OnLogMessage != null)
OnLogMessage(message, level);
switch (level)
{
case Helpers.LogLevel.Debug:
if (Settings.LOG_LEVEL == Helpers.LogLevel.Debug)
LogInstance.Debug(message, exception);
break;
case Helpers.LogLevel.Info:
if (Settings.LOG_LEVEL == Helpers.LogLevel.Debug
|| Settings.LOG_LEVEL == Helpers.LogLevel.Info)
LogInstance.Info(message, exception);
break;
case Helpers.LogLevel.Warning:
if (Settings.LOG_LEVEL == Helpers.LogLevel.Debug
|| Settings.LOG_LEVEL == Helpers.LogLevel.Info
|| Settings.LOG_LEVEL == Helpers.LogLevel.Warning)
LogInstance.Warn(message, exception);
break;
case Helpers.LogLevel.Error:
if (Settings.LOG_LEVEL == Helpers.LogLevel.Debug
|| Settings.LOG_LEVEL == Helpers.LogLevel.Info
|| Settings.LOG_LEVEL == Helpers.LogLevel.Warning
|| Settings.LOG_LEVEL == Helpers.LogLevel.Error)
LogInstance.Error(message, exception);
break;
default:
break;
}
}
/// <summary>
/// If the library is compiled with DEBUG defined, an event will be
/// fired if an <code>OnLogMessage</code> handler is registered and the
/// message will be sent to the logging engine
/// </summary>
/// <param name="message">The message to log at the DEBUG level to the
/// current logging engine</param>
public static void DebugLog(object message)
{
DebugLog(message, null);
}
/// <summary>
/// If the library is compiled with DEBUG defined and
/// <code>GridClient.Settings.DEBUG</code> is true, an event will be
/// fired if an <code>OnLogMessage</code> handler is registered and the
/// message will be sent to the logging engine
/// </summary>
/// <param name="message">The message to log at the DEBUG level to the
/// current logging engine</param>
/// <param name="client">Instance of the client</param>
[System.Diagnostics.Conditional("DEBUG")]
public static void DebugLog(object message, GridClient client)
{
if (Settings.LOG_LEVEL == Helpers.LogLevel.Debug)
{
if (client != null && client.Settings.LOG_NAMES)
message = String.Format("<{0}>: {1}", client.Self.Name, message);
if (OnLogMessage != null)
OnLogMessage(message, Helpers.LogLevel.Debug);
LogInstance.Debug(message);
}
}
}
}