com.antelmann.util.logging
Class AsynchLogWriter

java.lang.Object
  com.antelmann.util.logging.AsynchLogWriter

All Implemented Interfaces:

Filter<LogEntry>, LogWriter, Wrapped<LogWriter>

public class AsynchLogWriter
extends Object
implements LogWriter, Wrapped<LogWriter>

allows to operate any LogWriter asynchronously.

Author:

Holger Antelmann

Field Summary

Fields inherited from interface com.antelmann.util.Filter

EXCLUDE_ALL_FILTER, INCLUDE_ALL_FILTER

Constructor Summary

AsynchLogWriter(LogWriter writer, Executor worker)

Method Summary

boolean	accept(LogEntry entry) delegates to the writer synchronously
LogException[]	clearExceptions() returns all exceptions that may have been accumulated until this call and clears the embedded list
Executor	getExecutor()
LogWriter	getWriter()
LogWriter	unwrap() returns the embedded instance that this wrapper encloses
void	write(LogEntry entry) creates a task that runs asynchronously and delegates to the embedded writer.

Methods inherited from class java.lang.Object

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

Constructor Detail

AsynchLogWriter

public AsynchLogWriter(LogWriter writer,
                       Executor worker)

Method Detail

accept

public boolean accept(LogEntry entry)

delegates to the writer synchronously

Specified by:

accept in interface Filter<LogEntry>

write

public void write(LogEntry entry)
           throws LogException

creates a task that runs asynchronously and delegates to the embedded writer. If a LogException is thrown while the Executor runs, it will be thrown back to the caller on the next call after the exception was thrown.

Specified by:

write in interface LogWriter

Throws:

LogException - if an error occurred while writing the log

getExecutor

public Executor getExecutor()

getWriter

public LogWriter getWriter()

unwrap

public LogWriter unwrap()

Description copied from interface: Wrapped

returns the embedded instance that this wrapper encloses

Specified by:

unwrap in interface Wrapped<LogWriter>

clearExceptions

public LogException[] clearExceptions()

returns all exceptions that may have been accumulated until this call and clears the embedded list