#region Apache License
//
// Licensed to the Apache Software Foundation (ASF) under one or more 
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership. 
// The ASF licenses this file to you 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.Collections;

using log4net.Util;

namespace log4net
{
  /// <summary>
  /// The log4net Global Context.
  /// </summary>
  /// <remarks>
  /// <para>
  /// The <c>GlobalContext</c> provides a location for global debugging 
  /// information to be stored.
  /// </para>
  /// <para>
  /// The global context has a properties map and these properties can 
  /// be included in the output of log messages. The <see cref="log4net.Layout.PatternLayout"/>
  /// supports selecting and outputing these properties.
  /// </para>
  /// <para>
  /// By default the <c>log4net:HostName</c> property is set to the name of 
  /// the current machine.
  /// </para>
  /// </remarks>
  /// <example>
  /// <code lang="C#">
  /// GlobalContext.Properties["hostname"] = Environment.MachineName;
  /// </code>
  /// </example>
  /// <threadsafety static="true" instance="true" />
  /// <author>Nicko Cadell</author>
  public static class GlobalContext
  {
    /// <summary>
    /// The global properties map.
    /// </summary>
    public static GlobalContextProperties Properties { get; } = new()
    {
      [Core.LoggingEvent.HostNameProperty] = SystemInfo.HostName
    };
  }
}
