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using System; |
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using System.Collections.Generic; |
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using System.Text; |
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using System.IO; |
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namespace RipSync.RsiEditor |
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{ |
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/// <summary> |
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/// ログの出力レベル。 |
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/// </summary> |
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public enum LogLevel |
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{ |
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/// <summary> |
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/// 情報。 |
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/// </summary> |
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Info, |
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/// <summary> |
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/// 報告。 |
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/// </summary> |
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Notice, |
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/// <summary> |
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/// 警告。 |
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/// </summary> |
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Warn, |
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/// <summary> |
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/// エラー。 |
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/// </summary> |
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Error |
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} |
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/// <summary> |
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/// ログを出力するクラス。 |
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/// </summary> |
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public class Logger : IDisposable |
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{ |
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static private Logger instance = null; |
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/// <summary> |
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/// 唯一のインスタンスを取得する。 |
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/// </summary> |
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/// <returns></returns> |
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static public Logger GetInstance() |
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{ |
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if (instance == null) |
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{ |
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instance = new Logger(); |
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} |
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return instance; |
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} |
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private TextWriter writer = null; |
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private Stream stream = null; |
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private string log = ""; |
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/// <summary> |
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/// デフォルトのログファイル名を取得する。 |
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/// </summary> |
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/// <returns></returns> |
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static public string GetDefaultLogFileName() |
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{ |
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string appdir = System.Windows.Forms.Application.StartupPath; |
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return Path.Combine(appdir, "RSIEditor.log"); |
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} |
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/// <summary> |
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/// ログファイル(log.txt)をオープンする。 |
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/// </summary> |
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/// <returns></returns> |
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public bool Open() |
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{ |
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return Open(GetDefaultLogFileName()); |
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} |
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/// <summary> |
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/// ログファイルをオープンする。 |
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/// </summary> |
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/// <param name="_logfile"></param> |
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/// <returns></returns> |
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public bool Open(string _logfile) |
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{ |
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Close(); |
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TextReader tr = null; |
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TextWriter tw = null; |
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Stream st = null; |
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try |
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{ |
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st = new FileStream(_logfile, FileMode.OpenOrCreate, FileAccess.ReadWrite); |
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tw = new StreamWriter(st); |
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tr = new StreamReader(st); |
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log = tr.ReadToEnd(); |
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} |
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catch |
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{ |
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if (st != null) |
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{ |
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st.Close(); |
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} |
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return false; |
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} |
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writer = tw; |
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stream = st; |
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Write(LogLevel.Info, "Logger", "Logger starts. ---------------------------"); |
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return true; |
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} |
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/// <summary> |
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/// ログファイルをクローズする。 |
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/// </summary> |
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public void Close() |
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{ |
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if (writer != null) |
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{ |
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Write(LogLevel.Info, "Logger", "Logger closes. ---------------------------"); |
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stream.Close(); |
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stream = null; |
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writer = null; |
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} |
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} |
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/// <summary> |
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/// エラーログを出力する。 |
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/// </summary> |
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/// <param name="_name"></param> |
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/// <param name="_e"></param> |
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public void ErrorWrite(string _name, Exception _e) |
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{ |
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StringBuilder sb = new StringBuilder(); |
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sb.AppendLine("エラーが発生しました。"); |
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sb.AppendLine(String.Format("type {0}", _e.GetType().Name)); |
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sb.AppendLine(String.Format("at {0} ({1})", _e.Source, _e.TargetSite)); |
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sb.AppendLine(_e.Message); |
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sb.AppendLine(_e.StackTrace); |
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Write(LogLevel.Error, _name, sb.ToString()); |
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} |
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/// <summary> |
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/// ログを出力する。 |
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/// </summary> |
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/// <param name="_level">ログレベル</param> |
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/// <param name="_name">ログ出力者名</param> |
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/// <param name="_message">ログ</param> |
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public void Write(LogLevel _level, string _name, string _message) |
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{ |
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if (writer == null) return; |
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string type = ""; |
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switch (_level) |
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{ |
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case LogLevel.Info: type = "Info"; break; |
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case LogLevel.Notice: type = "Notice"; break; |
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case LogLevel.Warn: type = "Warn"; break; |
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case LogLevel.Error: type = "Error"; break; |
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} |
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string w = String.Format("[{0}][{1}][{2}] {3} ", DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss"), type, _name, _message); |
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log += "\r\n" + w; |
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writer.WriteLine(w); |
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writer.Flush(); |
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} |
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/// <summary> |
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/// ログを取得する。 |
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/// </summary> |
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public string Log |
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{ |
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get |
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{ |
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return log; |
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} |
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} |
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#region IDisposable メンバ |
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public void Dispose() |
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{ |
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Close(); |
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} |
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#endregion |
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} |
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} |