org.neo4j.logging

Class BufferingLog

java.lang.Object

org.neo4j.logging.AbstractLog

org.neo4j.logging.BufferingLog

All Implemented Interfaces:

Log

public class BufferingLog
extends AbstractLog

Buffers all messages sent to it, and is able to replay those messages into another Logger.

This can be used to start up services that need logging when they start, but where, for one reason or another, we have not yet set up proper logging in the application lifecycle.

This will replay messages in the order they are received, *however*, it will not preserve the time stamps of the original messages.

You should not use this for logging messages where the time stamps are important.

You should also not use this logger, when there is a risk that it can be subjected to an unbounded quantity of log messages, since the buffer keeps all messages until it gets a chance to replay them.

Constructor Summary

Constructors

Constructor and Description
BufferingLog()

Method Summary

Modifier and Type	Method and Description
void	bulk(Consumer<Log> consumer) Used to temporarily log several messages in bulk.
Logger	debugLogger()
Logger	errorLogger()
Logger	infoLogger()
boolean	isDebugEnabled()
void	replayInto(Log other) Replays buffered messages and clears the buffer.
String	toString()
Logger	warnLogger()

Methods inherited from class org.neo4j.logging.AbstractLog

debug, debug, debug, error, error, error, info, info, info, warn, warn, warn

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BufferingLog

public BufferingLog()

Method Detail

isDebugEnabled

public boolean isDebugEnabled()

Returns:

true if the current log level enables debug logging

debugLogger

@Nonnull
public Logger debugLogger()

Returns:

a Logger instance for writing debug messages

infoLogger

@Nonnull
public Logger infoLogger()

Returns:

a Logger instance for writing info messages

warnLogger

@Nonnull
public Logger warnLogger()

Returns:

a Logger instance for writing warn messages

errorLogger

@Nonnull
public Logger errorLogger()

Returns:

a Logger instance for writing error messages

bulk

public void bulk(@Nonnull
                 Consumer<Log> consumer)

Description copied from interface: Log

Used to temporarily log several messages in bulk. The implementation may choose to disable flushing, and may also block other operations until the bulk update is completed.

Parameters:

consumer - A consumer for the bulk Log

replayInto

public void replayInto(Log other)

Replays buffered messages and clears the buffer.

Parameters:

other - the log to reply into

toString

public String toString()

Overrides:

toString in class Object