com.antelmann.util.logging
Class FileLog

java.lang.Object
  com.antelmann.util.logging.AbstractLogWriter<String>
      com.antelmann.util.logging.FileLog

All Implemented Interfaces:

Filter<LogEntry>, LogWriter

public class FileLog
extends AbstractLogWriter<String>

writes entries to a file without continuously holding a lock on the file. FileLog uses a DBLineLogFormatter. This implementation is suitable only for occasional (non-performace critical) write operations, while the file can still be accessed through other processes or threads.

Author:

Holger Antelmann

See Also:

DBLineLogFormatter, LogFile

Field Summary

Fields inherited from class com.antelmann.util.logging.AbstractLogWriter

filter

Fields inherited from interface com.antelmann.util.Filter

EXCLUDE_ALL_FILTER, INCLUDE_ALL_FILTER

Constructor Summary

FileLog(File file)

FileLog(File file, boolean useDailyPattern)
if the usedailyPattern parameter is true, messages are stored into a file name that automatically appends yyymmdd from the current date.

FileLog(File file, LogEntryFormatter<String> formatter, boolean useDailyPattern)

Method Summary

MyFile	getFile()
boolean	usesDailyPattern()
void	writeLogPattern(String pattern) writes the pattern to the log entity.

Methods inherited from class com.antelmann.util.logging.AbstractLogWriter

accept, getLogFilter, getLogFormatter, setLogFilter, setLogFormatter, write

Methods inherited from class java.lang.Object

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

Constructor Detail

FileLog

public FileLog(File file)

FileLog

public FileLog(File file,
               boolean useDailyPattern)

if the usedailyPattern parameter is true, messages are stored into a file name that automatically appends yyymmdd from the current date.

FileLog

public FileLog(File file,
               LogEntryFormatter<String> formatter,
               boolean useDailyPattern)

Method Detail

writeLogPattern

public void writeLogPattern(String pattern)
                     throws LogException

Description copied from class: AbstractLogWriter

writes the pattern to the log entity. If the LogEntryFormatter is null, the pattern is the LogEntry object itself; otherwise, the pattern is the result of formatting the LogEntry with the given LogEntryFormatter.

Specified by:

writeLogPattern in class AbstractLogWriter<String>

Throws:

LogException

getFile

public MyFile getFile()

usesDailyPattern

public boolean usesDailyPattern()