package com.essa.framework;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.OutputStreamWriter;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  
  import com.essa.framework.LogType;
  

  public class Logger {  
      

      public static String OutputFileName = getDateTimeByFormat(new Date(), "yyyyMMdd");  

      private static OutputStreamWriter outputStreamWriter;  
      private static String logFileName;  
      public static boolean LogFlag = true;  

      public static String logContent;

    
      public Logger() {  
    
      }  
    
      private static void WriteLog(String logEntry) {  
    
          try {  
                    
                      // 定义日志文件保存路径和日志文件名称  
                  logFileName = ".\\Log" + "\\" + OutputFileName + ".log";  
                  if (outputStreamWriter == null) {  
                      File logFile = new File(logFileName);  
                    
                  if (!logFile.exists())  
                          logFile.createNewFile();  
                  //利用OutputStreamWriter往日志文件写内容，字符编码是unicode  
                  outputStreamWriter = new OutputStreamWriter(new FileOutputStream(logFileName), "utf-8");  
              }  
              outputStreamWriter.write(logEntry, 0, logEntry.length());  

              outputStreamWriter.flush();  
    
          } catch (Exception e) {  
              System.out.println(LogType.LogTypeName.ERROR.toString() + ": Failed to write the file " + logFileName);  
              e.printStackTrace();  
    
          }  
    
      }  
    
      //获取当前系统时间，得到格式化时间字符串  
      private static String getDateTimeByFormat(Date date, String format) {  
    
          SimpleDateFormat df = new SimpleDateFormat(format);  
    
          return df.format(date);  
    
      }  
        
      public static void Output(LogType.LogTypeName logTypeName, String logMessage) {  

      	Date date = new Date();  

          String logTime = getDateTimeByFormat(date, "yyyy-MM-dd HH:mm:ss.SSS");  
          String logEntry = logTime + " " + logTypeName.name() + ": " + logMessage + "\r\n";  

          System.out.print(logEntry); 
          setLog(logEntry);

          // 定义一个开关，为True就输出日志，如果你不想输出，改成False  
          if (LogFlag)  
              WriteLog(logEntry);  
          }  

      /**
       * 获取日志信息
       * @return
       */
      public static String getLog() {
      	return logContent;
      }
      
      public static void setLog(String logEntry) {
      	logContent = logEntry;
      }

  }