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[Logger] Allow for log filtering based on level

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This commit is contained in:
Matt Nadareski
2017-03-01 21:58:09 -08:00
parent 1eff6ce217
commit 4ab5f4578f
3 changed files with 29 additions and 15 deletions
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27
SabreTools.Helper/Logger.cs
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@@ -1,6 +1,8 @@
using System;
using System.IO;
using SabreTools.Helper.Data;
namespace SabreTools.Helper
{
/// <summary>
@@ -8,27 +10,15 @@ namespace SabreTools.Helper
/// </summary>
/// <remarks>
/// TODO: Allow for "triggerable" logging done on an interval (async)
/// TODO: Log filtering? (#if debug?)
/// TODO: Reduce user-verbosity in later builds
/// </remarks>
public class Logger
{
/// <summary>
/// Severity of the logging statement
/// </summary>
private enum LogLevel
{
VERBOSE = 0,
USER,
WARNING,
ERROR,
}
// Private instance variables
private bool _tofile;
private bool _warnings;
private bool _errors;
private string _filename;
private LogLevel _filter;
private DateTime _start;
private StreamWriter _log;
@@ -44,6 +34,7 @@ namespace SabreTools.Helper
_warnings = false;
_errors = false;
_filename = null;
_filter = LogLevel.VERBOSE;
Start();
}
@@ -53,12 +44,14 @@ namespace SabreTools.Helper
/// </summary>
/// <param name="tofile">True if file should be written to instead of console</param>
/// <param name="filename">Filename representing log location</param>
public Logger(bool tofile, string filename)
/// <param name="filter">Highest filtering level to be kept, default VERBOSE</param>
public Logger(bool tofile, string filename, LogLevel filter = LogLevel.VERBOSE)
{
_tofile = tofile;
_warnings = false;
_errors = false;
_filename = Path.GetFileNameWithoutExtension(filename) + " (" + DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + ")" + Path.GetExtension(filename);
_filter = filter;
if (!Directory.Exists(_basepath))
{
@@ -169,6 +162,12 @@ namespace SabreTools.Helper
/// <returns>True if the output could be written, false otherwise</returns>
private bool Log(string output, LogLevel loglevel, bool appendPrefix)
{
// If the log level is less than the filter level, we skip it but claim we didn't
if (loglevel < _filter)
{
return true;
}
// USER and ERROR writes to console
if (loglevel == LogLevel.USER || loglevel == LogLevel.ERROR)
{