com.github.danielwegener.logback.kafka.keying

Class HostNameKeyingStrategy

java.lang.Object

ch.qos.logback.core.spi.ContextAwareBase

com.github.danielwegener.logback.kafka.keying.HostNameKeyingStrategy

All Implemented Interfaces:

ch.qos.logback.core.spi.ContextAware, KeyingStrategy<Object>

public class HostNameKeyingStrategy
extends ch.qos.logback.core.spi.ContextAwareBase
implements KeyingStrategy<Object>

This strategy uses the HOSTNAME to partition the log messages to kafka. This is useful because it ensures that all log messages issued by this host will remain in the correct order for any consumer. But this strategy can lead to uneven log distribution for a small number of hosts (compared to the number of partitions).

Since:

0.0.1

Field Summary

Fields inherited from class ch.qos.logback.core.spi.ContextAwareBase

context

Constructor Summary

Constructors

Constructor and Description
HostNameKeyingStrategy()

Method Summary

Modifier and Type	Method and Description
byte[]	createKey(Object e) creates a byte array key for the given ILoggingEvent
void	setContext(ch.qos.logback.core.Context context)

Methods inherited from class ch.qos.logback.core.spi.ContextAwareBase

addError, addError, addInfo, addInfo, addStatus, addWarn, addWarn, getContext, getDeclaredOrigin, getStatusManager

Methods inherited from class java.lang.Object

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

Constructor Detail

HostNameKeyingStrategy

public HostNameKeyingStrategy()

Method Detail

setContext

public void setContext(ch.qos.logback.core.Context context)

Specified by:

setContext in interface ch.qos.logback.core.spi.ContextAware

Overrides:

setContext in class ch.qos.logback.core.spi.ContextAwareBase

createKey

public byte[] createKey(Object e)

Description copied from interface: KeyingStrategy

creates a byte array key for the given ILoggingEvent

Specified by:

createKey in interface KeyingStrategy<Object>

Parameters:

e - the logging event