bundles/org.simantics.utils/src/org/simantics/utils/logging/TimeLogger.java

   1 package org.simantics.utils.logging;\r
   2 \r
   3 import java.text.DecimalFormat;\r
   4 import java.text.NumberFormat;\r
   5 \r
   6 public class TimeLogger {\r
   7     public static final boolean TIME_LOGGING_ENABLED = false;\r
   8     \r
   9     private static final NumberFormat TIME_FORMAT = new DecimalFormat("0.000");\r
  10     \r
  11     private static long BEGIN_TIME = System.nanoTime();\r
  12     \r
  13     private static void printCurrentTime() {\r
  14         double time = (System.nanoTime() - BEGIN_TIME) * 1e-9;\r
  15         System.out.print("[");\r
  16         System.out.print(TIME_FORMAT.format(time));\r
  17         System.out.print(" s] ");\r
  18     }\r
  19     \r
  20     public static void resetTimeAndLog(String message) {\r
  21         if(TIME_LOGGING_ENABLED) {\r
  22             BEGIN_TIME = System.nanoTime();\r
  23             printCurrentTime();\r
  24             System.out.print(message);\r
  25             System.out.print(" ");\r
  26             for(int i=0;i<140-message.length();++i)\r
  27                 System.out.print("=");\r
  28             System.out.println();\r
  29         }\r
  30     }\r
  31     \r
  32     public static void resetTimeAndLog(Class<?> clazz, String method) {\r
  33         if(TIME_LOGGING_ENABLED)\r
  34             resetTimeAndLog(clazz.getSimpleName() + "." + method);\r
  35     }\r
  36     \r
  37     public static void resetTime() {\r
  38         if(TIME_LOGGING_ENABLED)\r
  39             BEGIN_TIME = System.nanoTime();\r
  40     }\r
  41     \r
  42     public static void log(String message) {\r
  43         if(TIME_LOGGING_ENABLED) {\r
  44             printCurrentTime();\r
  45             System.out.println(message);\r
  46         }\r
  47     }\r
  48     \r
  49     public static void log(Class<?> clazz, String method) {\r
  50         if(TIME_LOGGING_ENABLED)\r
  51             log(clazz.getSimpleName() + "." + method);\r
  52     }\r
  53 }\r