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de.hunsicker.jalopy.plugin
Class AbstractAppender  

java.lang.Object
  org.apache.log4j.AppenderSkeleton
      de.hunsicker.jalopy.plugin.AbstractAppender

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler, SwingAppender

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public abstract class AbstractAppender

extends org.apache.log4j.AppenderSkeleton

implements SwingAppender

Skeleton implementation of an appender which outputs messages in a visual component.

Version:

$Revision: 1.4 $

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Field Summary
private  org.apache.oro.text.regex.PatternMatcher	_matcher           Matcher instance.
private static java.lang.String	APPENDER_NAME           Name of the appender for output messages.
private static java.lang.String	PATTERN           Regex to apply for Emacs-style messages.
static int	POS_COLUMN           Position of the message text in the regex result.
static int	POS_FILENAME           Position of the filename in the regex result.
static int	POS_LINE           Position of the lineno in the regex result.
static int	POS_TEXT           Position of the message text in the regex result.
protected  org.apache.oro.text.regex.Pattern	regex           The regex to parse the messages.

 

Fields inherited from class org.apache.log4j.AppenderSkeleton

closed, errorHandler, headFilter, layout, name, tailFilter, threshold

 

Constructor Summary

AbstractAppender()           Creates a new AbstractAppender object.

 

Method Summary
abstract  void	append(org.apache.log4j.spi.LoggingEvent ev)           Does the actual outputting.
protected  boolean	checkEntryConditions()           null
void	close()           null
void	done()           null
org.apache.oro.text.regex.MatchResult	parseMessage(org.apache.log4j.spi.LoggingEvent ev)           Parses the given message.
boolean	requiresLayout()           null
void	setName(java.lang.String name)           Sets the name of the appender.

 

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setThreshold

 

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Methods inherited from interface de.hunsicker.jalopy.plugin.SwingAppender

clear

 

Methods inherited from interface org.apache.log4j.Appender

addFilter, clearFilters, doAppend, getErrorHandler, getFilter, getLayout, getName, setErrorHandler, setLayout

 

Field Detail

POS_FILENAME

public static final int POS_FILENAME

Position of the filename in the regex result.

See Also:

Constant Field Values

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POS_LINE

public static final int POS_LINE

Position of the lineno in the regex result.

See Also:

Constant Field Values

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POS_TEXT

public static final int POS_TEXT

Position of the message text in the regex result.

See Also:

Constant Field Values

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POS_COLUMN

public static final int POS_COLUMN

Position of the message text in the regex result.

See Also:

Constant Field Values

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APPENDER_NAME

private static final java.lang.String APPENDER_NAME

Name of the appender for output messages.

See Also:

Constant Field Values

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PATTERN

private static final java.lang.String PATTERN

Regex to apply for Emacs-style messages. Messages must comply to the filename:line:column:text pattern.

See Also:

Constant Field Values

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regex

protected final org.apache.oro.text.regex.Pattern regex

The regex to parse the messages. If messages have a format similiar to Emacs messages (filename:lineno:text) the pattern will match.

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_matcher

private org.apache.oro.text.regex.PatternMatcher _matcher

Matcher instance.

Constructor Detail

AbstractAppender

public AbstractAppender()

Creates a new AbstractAppender object.

Method Detail

append

public abstract void append(org.apache.log4j.spi.LoggingEvent ev)

Does the actual outputting.

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setName

public final void setName(java.lang.String name)

Sets the name of the appender. Overidden so that the initial name can't be changed.

Specified by:

setName in interface org.apache.log4j.Appender

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close

public void close()

null

Specified by:

close in interface org.apache.log4j.Appender

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done

public void done()

null

Specified by:

done in interface SwingAppender

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parseMessage

public org.apache.oro.text.regex.MatchResult parseMessage(org.apache.log4j.spi.LoggingEvent ev)

Parses the given message. To access the parsed information one may typically use:

 MatchResult result = parseMessage(message);
 if (result == null)
 {
     // handle plain message
     ...
 }
 else
 {
     // this is an Emacs style message, you can easily access the
     // information
     String filename = result.group(POS_FILENAME);
     String line = result.group(POS_LINE);
     String column = result.group(POS_COLUMN);
     String text = result.group(POS_TEXT);
     ...
 }
 

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requiresLayout

public boolean requiresLayout()

null

Specified by:

requiresLayout in interface org.apache.log4j.Appender

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checkEntryConditions

protected boolean checkEntryConditions()

null

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> de >> hunsicker >> jalopy >> [ plugin overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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