OnJava8-Examples/logging/PrintableLogRecord.java

// logging/PrintableLogRecord.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Override LogRecord toString()
import java.util.logging.*;

public class PrintableLogRecord extends LogRecord {
  public PrintableLogRecord(Level level, String str) {
    super(level, str);
  }
  @Override
  public String toString() {
    String result = "Level<" + getLevel()+ ">\n"
      + "LoggerName<" + getLoggerName() + ">\n"
      + "Message<" + getMessage() + ">\n"
      + "CurrentMillis<" + getMillis() + ">\n"
      + "Params";
    Object[] objParams = getParameters();
    if(objParams == null)
      result += "<null>\n";
    else
      for(int i = 0; i < objParams.length; i++)
        result += "  Param # <" + i + " value "+
          objParams[i].toString() + ">\n";
    result += "ResourceBundle<"
      + getResourceBundle()
      + ">\nResourceBundleName<"
      + getResourceBundleName()
      + ">\nSequenceNumber<"
      + getSequenceNumber()
      + ">\nSourceClassName<"
      + getSourceClassName()
      + ">\nSourceMethodName<"
      + getSourceMethodName()
      + ">\nThread Id<" + getThreadID()
      + ">\nThrown<" + getThrown() + ">";
    return result;
  }
  public static void main(String[] args) {
    PrintableLogRecord logRecord =
      new PrintableLogRecord(
        Level.FINEST, "Simple Log Record");
    System.out.println(logRecord);
  }
}
/* Output:
Level<FINEST>
LoggerName<null>
Message<Simple Log Record>
CurrentMillis<1469638244376>
Params<null>
ResourceBundle<null>
ResourceBundleName<null>
SequenceNumber<0>
SourceClassName<null>
SourceMethodName<null>
Thread Id<1>
Thrown<null>
*/