com.antelmann.util.logging
Class BinaryFileLog

java.lang.Object
  com.antelmann.util.logging.AbstractLogWriter<byte[]>
      com.antelmann.util.logging.BinaryFileLog

All Implemented Interfaces:

Filter<LogEntry>, LogWriter

public class BinaryFileLog
extends AbstractLogWriter<byte[]>

A LogWriter that logs the entries synchronously serialized to a file. The implementation utilizes a BinaryLogFormatter. To read from a BinaryFileLog, you can also use the ObjectEnumerator from the class com.antelmann.io.MyFile. Note that if the BinaryFileLog was initialized with either the option keepConnectionAlive set to false or the option append set to true, the individual log entries are separately serialized and written as byte[]; so if you want to recover the LogEntry objects, you'll need to deserialize then. For the deserialization, you can use the com.antelmann.io.Data class.

Since:

12/22/2002

Author:

Holger Antelmann

See Also:

BinaryLogFormatter, MyFile.objectEnumerator(boolean), Data.deserialize(byte[])

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

BinaryFileLog(File file, boolean keepConnectionAlive, boolean append)

Method Summary

void	close()
protected void	finalize()
void	writeLogPattern(byte[] pattern) writes the complete serialized information and flushes synchronously

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

accept, getLogFilter, getLogFormatter, setLogFilter, setLogFormatter, write

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryFileLog

public BinaryFileLog(File file,
                     boolean keepConnectionAlive,
                     boolean append)
              throws IOException

Throws:

IOException

Method Detail

writeLogPattern

public void writeLogPattern(byte[] pattern)
                     throws LogException

writes the complete serialized information and flushes synchronously

Specified by:

writeLogPattern in class AbstractLogWriter<byte[]>

Throws:

LogException

close

public void close()
           throws IOException

Throws:

IOException

finalize

protected void finalize()
                 throws IOException

Overrides:

finalize in class Object

Throws:

IOException