src/log4net/Layout/Pattern/StackTraceDetailPatternConverter.cs

/*
 *
 * 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.
 *
*/
using log4net.Core;
using log4net.Util;
using System;
using System.Diagnostics.CodeAnalysis;
using System.Text;

namespace log4net.Layout.Pattern;

/// <summary>
/// Writes the <see cref="LocationInfo.StackFrames"/> to the output writer, using format:
/// type3.MethodCall3(type param,...) > type2.MethodCall2(type param,...) > type1.MethodCall1(type param,...)
/// </summary>
/// <author>Adam Davies</author>
[SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses", Justification = "Reflection")]
internal sealed class StackTraceDetailPatternConverter : StackTracePatternConverter
{
  /// <inheritdoc/>
  internal override string GetMethodInformation(MethodItem method)
  {
    string result = "";

    try
    {
      string param = "";
      string[] names = method.Parameters;
      StringBuilder sb = new();
      if (names is not null && names.GetUpperBound(0) > 0)
      {
        for (int i = 0; i <= names.GetUpperBound(0); i++)
        {
          sb.AppendFormat("{0}, ", names[i]);
        }
      }

      if (sb.Length > 0)
      {
        sb.Remove(sb.Length - 2, 2);
        param = sb.ToString();
      }

      result = base.GetMethodInformation(method) + "(" + param + ")";
    }
    catch (Exception e) when (!e.IsFatal())
    {
      LogLog.Error(_declaringType, "An exception ocurred while retreiving method information.", e);
    }

    return result;
  }

  #region Private Static Fields

  /// <summary>
  /// The fully qualified type of the StackTraceDetailPatternConverter class.
  /// </summary>
  /// <remarks>
  /// Used by the internal logger to record the Type of the
  /// log message.
  /// </remarks>
  private static readonly Type _declaringType = typeof(StackTracePatternConverter);

  #endregion Private Static Fields
}