介绍没有源代码污染的日志记录

这个问题在我的脑海中唠叨了一段时间...对于日志记录是有用的，它应该是代码中的每一处，但是这会使代码难以阅读。像下面的代码：介绍没有源代码污染的日志记录

public IDictionary<decimal, Status> GetStatus(decimal[] keys) 
{ 
    _logger.Debug("ENTERED GetStatus"); 

    IDictionary<decimal, Status> statuses = new Dictionary<decimal, Status>(); 
    string inClause = null; 

    inClause = FormatInClause(keys, inClause); 
    _logger.DebugFormat(" inClause: '{0}' ", inClause); 
    if (string.IsNullOrEmpty(inClause)) 
    { 
     _logger.Error("Key collection is null or empty."); 
     throw new Exception("Key collection is null or empty."); 
    } 

    if (!IsOpen) 
     Connection.Open(); 

    using (IDbCommand cmd = Connection.CreateCommand()) 
    { 
     cmd.CommandText = " select id, date, status " + 
      " from ORDERS where id in (" + inClause + ") "; 

     inClause = null; 

     using (IDataReader reader = cmd.ExecuteReader()) 
     { 
      int i = 0; 
      while (reader.Read()) 
      { 
       object[] values = new object[reader.FieldCount]; 

       reader.GetValues(values); 
       DebugHelper.LogValues(_logger, " reader.Read() #" + i + " reader.GetValues(values): ", values); 

       statuses[(decimal)values[0]] = new Status(
        (decimal)values[0], 
        ValueOrDefult<string>(values[1]), 
        ValueOrDefult<string>(values[2]), 
        (decimal)values[3], 
        ValueOrDefult<DateTime>(values[4])); 
       _logger.DebugFormat(" reader.Read() #{0} created new Status() ", i); 

       values = null; 
       i++; 
      } 
     } 
    } 

    _logger.Debug("EXITED GetStatus"); 
    return statuses; 
}

是否有一些记录策略不降低源代码的可读性？

来源

2011-03-24 Darius Kucinskas