#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;

namespace log4net.Core
{
  /// <summary>
  /// Appenders may delegate their error handling to an <see cref="IErrorHandler" />.
  /// </summary>
  /// <remarks>
  /// <para>
  /// Error handling is a particularly tedious to get right because by
  /// definition errors are hard to predict and to reproduce. 
  /// </para>
  /// </remarks>
  /// <author>Nicko Cadell</author>
  /// <author>Gert Driesen</author>
  public interface IErrorHandler
  {
    /// <summary>
    /// Handles the error and information about the error condition is passed as 
    /// a parameter.
    /// </summary>
    /// <param name="message">The message associated with the error.</param>
    /// <param name="e">The <see cref="Exception" /> that was thrown when the error occurred.</param>
    /// <param name="errorCode">The error code associated with the error.</param>
    /// <remarks>
    /// <para>
    /// Handles the error and information about the error condition is passed as 
    /// a parameter.
    /// </para>
    /// </remarks>
    void Error(string message, Exception? e, ErrorCode errorCode);

    /// <summary>
    /// Prints the error message passed as a parameter.
    /// </summary>
    /// <param name="message">The message associated with the error.</param>
    /// <param name="e">The <see cref="Exception" /> that was thrown when the error occurred.</param>
    /// <remarks>
    /// <para>
    /// See <see cref="M:Error(string,Exception,ErrorCode)"/>.
    /// </para>
    /// </remarks>
    void Error(string message, Exception e);

    /// <summary>
    /// Prints the error message passed as a parameter.
    /// </summary>
    /// <param name="message">The message associated with the error.</param>
    /// <remarks>
    /// <para>
    /// See <see cref="M:Error(string,Exception,ErrorCode)"/>.
    /// </para>
    /// </remarks>
    void Error(string message);
  }
}
