#region Copyright & License
//
// Copyright 2001-2005 The Apache Software Foundation
//
// Licensed 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.
//
#endregion
using System;
using System.IO;
using System.Windows.Forms;
using log4net.Appender;
using log4net.Core;
using log4net.Layout;
using log4net.Util;
namespace SampleAppendersApp.Appender{
/// <summary>
/// Displays messages as message boxes
/// </summary>
/// <remarks>
/// Displays each LoggingEvent as a MessageBox. The message box is UI modal
/// and will block the calling thread until it is dismissed by the user.
/// </remarks>
public class MessageBoxAppender : AppenderSkeleton
{
private PatternLayout m_titleLayout;
private LevelMapping m_levelMapping = new LevelMapping();
public MessageBoxAppender()
{
}
public void AddMapping(LevelIcon mapping)
{
m_levelMapping.Add(mapping);
}
public PatternLayout TitleLayout
{
get { return m_titleLayout; }
set { m_titleLayout = value; }
}
override protected void Append(LoggingEvent loggingEvent)
{
MessageBoxIcon messageBoxIcon = MessageBoxIcon.Information;
LevelIcon levelIcon = m_levelMapping.Lookup(loggingEvent.Level) as LevelIcon;
if (levelIcon != null)
{
// Prepend the Ansi Color code
messageBoxIcon = levelIcon.Icon;
}
string message = RenderLoggingEvent(loggingEvent);
string title = null;
if (m_titleLayout == null)
{
title = "LoggingEvent: "+loggingEvent.Level.Name;
}
else
{
StringWriter titleWriter = new StringWriter(System.Globalization.CultureInfo.InvariantCulture);
m_titleLayout.Format(titleWriter, loggingEvent);
title = titleWriter.ToString();
}
MessageBox.Show(message, title, MessageBoxButtons.OK, messageBoxIcon);
}
public override void ActivateOptions()
{
base.ActivateOptions();
m_levelMapping.ActivateOptions();
}
public class LevelIcon : LevelMappingEntry
{
private MessageBoxIcon m_icon;
public MessageBoxIcon Icon
{
get { return m_icon; }
set { m_icon = value; }
}
}
}
}
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