Examples of org.apache.log.format.PatternFormatter

org.apache.log.format.PatternFormatter

This formater formats the LogEvents according to a input pattern string.

The format of each pattern element can be %[+|-][#[.#]]{field:subformat}.

The +|- indicates left or right justify.
The #.# indicates the minimum and maximum size of output. You may omit the values and the field will be formatted without size restriction.
You may specify #, or #. to only define the minimum size.
You may specify .# to only define the maximum size.

field indicates which field is to be output and must be one of properties of LogEvent. The following fields are currently supported:

category	Category value of the logging event.
context	Context value of the logging event.
message	Message value of the logging event.
time	Time value of the logging event.
rtime	Relative time value of the logging event.
throwable	Throwable value of the logging event.
priority	Priority value of the logging event.
thread	Name of the thread which logged the event.

subformat indicates a particular subformat to use on the specified field, and is currently only supported by:

context Specifies the context map parameter name.
time Specifies the pattern to be pass to {@link java.text.SimpleDateFormat SimpleDateFormat} to format the time.

A simple example of a typical PatternFormatter format would be:

 %{time} %5.5{priority}[%-10.10{category}]: %{message}

This would produce a line like:

 1000928827905 DEBUG [     junit]: Sample message

The format string specifies that the logger should first print the time value of the log event without size restriction, then the priority of the log event with a minimum and maximum size of 5, then the category of the log event right justified with a minimum and maximum size of 10, followed by the message of the log event without any size restriction.

@author Avalon Development Team @author Peter Donald @author Sylvain Wallez @author Leif Mortenson @version CVS $Revision: 1.42 $ $Date: 2004/02/28 11:31:24 $

        {
            return new RawFormatter();
        }


        /**  default formatter */
        return new PatternFormatter( format );
    }

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        m_rootLogger = new Logger( new InnerErrorHandler(),
                                   new InnerLoggerListener(),
                                   "", null, null );


        //Setup default output target to print to console
        final PatternFormatter formatter = new PatternFormatter( DEFAULT_FORMAT );
        final StreamTarget target = new StreamTarget( System.out, formatter );


        setDefaultLogTarget( target );
    }

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        pattern = PATTERN_THREAD_PREFIX;
      } else {
        pattern = DEFAULT_PATTERN;
      }
    }
    format = new PatternFormatter(pattern + "\n");
  }

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   * Helper method to ensure that format is initialised if initializeLogging()
   * has not yet been called.
   */
  private static PatternFormatter getFormat() {
    if (format == null) {
      format = new PatternFormatter(DEFAULT_PATTERN + "\n");
    }
    return format;
  }

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        pattern = PATTERN_THREAD_PREFIX;
      } else {
        pattern = DEFAULT_PATTERN;
      }
    }
    format = new PatternFormatter(pattern + "\n");
  }

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   * Helper method to ensure that format is initialised if initializeLogging()
   * has not yet been called.
   */
  private static PatternFormatter getFormat() {
    if (format == null) {
      format = new PatternFormatter(DEFAULT_PATTERN + "\n");
    }
    return format;
  }

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        {
            return new RawFormatter();
        }


        /**  default formatter */
        return new PatternFormatter( format );
    }

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        {
            return new SyslogFormatter();
        }
        else if( "pattern".equals( type ) )
        {
            return new PatternFormatter( format );
        }
        else
        {
            throw new IllegalArgumentException( "Unknown formatter type " + type );
        }

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        assertEquals( "SYSLOG with banner formatting of E3", E3_SYSLOG_WB, result3 );
    }


    public void testPattern1Formatter()
    {
        final Formatter formatter = new PatternFormatter( PATTERN1 );


        final String result1 = formatter.format( E1 );
        final String result2 = formatter.format( E2 );
        final String result3 = formatter.format( E3 );


        assertEquals( "Pattern1 formatting of E1", E1_PATTERN1, result1 );
        assertEquals( "Pattern1 formatting of E2", E2_PATTERN1, result2 );
        assertEquals( "Pattern1 formatting of E3", E3_PATTERN1, result3 );
    }

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        assertEquals( "Pattern1 formatting of E3", E3_PATTERN1, result3 );
    }


    public void testPattern2Formatter()
    {
        final Formatter formatter = new PatternFormatter( PATTERN2 );


        final String result1 = formatter.format( E1 );
        final String result2 = formatter.format( E2 );
        final String result3 = formatter.format( E3 );


        assertEquals( "Pattern2 formatting of E1", E1_PATTERN2, result1 );
        assertEquals( "Pattern2 formatting of E2", E2_PATTERN2, result2 );
        assertEquals( "Pattern2 formatting of E3", E3_PATTERN2, result3 );
    }

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context	Specifies the context map parameter name.
time	Specifies the pattern to be pass to {@link java.text.SimpleDateFormat SimpleDateFormat} to format the time.