Package io.netty.resolver.dns

Class LoggingDnsQueryLifeCycleObserverFactory

java.lang.Object

io.netty.resolver.dns.LoggingDnsQueryLifeCycleObserverFactory

All Implemented Interfaces:

DnsQueryLifecycleObserverFactory

public final class LoggingDnsQueryLifeCycleObserverFactory
extends java.lang.Object
implements DnsQueryLifecycleObserverFactory

A DnsQueryLifecycleObserverFactory that enables detailed logging in the DnsNameResolver.

When configured on the resolver, detailed trace information will be generated so that it is easier to understand the cause of resolution failure.

Constructor Summary

Constructors

Constructor	Description
LoggingDnsQueryLifeCycleObserverFactory()	Create DnsQueryLifecycleObserver instances that log events at the default LogLevel.DEBUG level.
LoggingDnsQueryLifeCycleObserverFactory(LogLevel level)	Create DnsQueryLifecycleObserver instances that log events at the given log level.
LoggingDnsQueryLifeCycleObserverFactory(java.lang.Class<?> classContext, LogLevel level)	Create DnsQueryLifecycleObserver instances that log events to a logger with the given class context, at the given log level.
LoggingDnsQueryLifeCycleObserverFactory(java.lang.String name, LogLevel level)	Create DnsQueryLifecycleObserver instances that log events to a logger with the given name context, at the given log level.

Method Summary

Modifier and Type	Method	Description
DnsQueryLifecycleObserver	newDnsQueryLifecycleObserver(DnsQuestion question)	Create a new instance of a DnsQueryLifecycleObserver.

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingDnsQueryLifeCycleObserverFactory

public LoggingDnsQueryLifeCycleObserverFactory()

Create DnsQueryLifecycleObserver instances that log events at the default LogLevel.DEBUG level.

LoggingDnsQueryLifeCycleObserverFactory

public LoggingDnsQueryLifeCycleObserverFactory(LogLevel level)

Create DnsQueryLifecycleObserver instances that log events at the given log level.

Parameters:

level - The log level to use for logging resolver events.

LoggingDnsQueryLifeCycleObserverFactory

public LoggingDnsQueryLifeCycleObserverFactory(java.lang.Class<?> classContext,
                                               LogLevel level)

Create DnsQueryLifecycleObserver instances that log events to a logger with the given class context, at the given log level.

Parameters:

classContext - The class context for the logger to use.

level - The log level to use for logging resolver events.

LoggingDnsQueryLifeCycleObserverFactory

public LoggingDnsQueryLifeCycleObserverFactory(java.lang.String name,
                                               LogLevel level)

Create DnsQueryLifecycleObserver instances that log events to a logger with the given name context, at the given log level.

Parameters:

name - The name for the logger to use.

level - The log level to use for logging resolver events.

Method Detail

newDnsQueryLifecycleObserver

public DnsQueryLifecycleObserver newDnsQueryLifecycleObserver(DnsQuestion question)

Description copied from interface: DnsQueryLifecycleObserverFactory

Create a new instance of a DnsQueryLifecycleObserver. This will be called at the start of a new query.

Specified by:

newDnsQueryLifecycleObserver in interface DnsQueryLifecycleObserverFactory

Parameters:

question - The question being asked.

Returns:

a new instance of a DnsQueryLifecycleObserver.