Package org.xbill.DNS.io

Class DefaultIoClientFactory

java.lang.Object

org.xbill.DNS.io.DefaultIoClientFactory

All Implemented Interfaces:

IoClientFactory

public class DefaultIoClientFactory
extends Object
implements IoClientFactory

Serves as a default implementation that is used by the SimpleResolver, unless otherwise configured. This preserves the default behavior (to use the built-in NIO clients) while allowing flexibility at the point of use.

Since:

3.6

Field Summary

Fields

Modifier and Type	Field	Description
private static final DefaultIoClient	RESOLVER_CLIENT	Shared instance because it only serves as a bridge to the static NIO classes and does not need to be different per class.

Constructor Summary

Constructors

Constructor	Description
DefaultIoClientFactory()

Method Summary

Modifier and Type	Method	Description
TcpIoClient	createOrGetTcpClient()	Create or return a cached/reused instance of the TCP resolver that should be used to send DNS data over the wire to the remote target.
UdpIoClient	createOrGetUdpClient()	Create or return a cached/reused instance of the UDP resolver that should be used to send DNS data over the wire to the remote target.

Methods inherited from class java.lang.Object

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

Field Details

RESOLVER_CLIENT

private static final DefaultIoClient RESOLVER_CLIENT

Shared instance because it only serves as a bridge to the static NIO classes and does not need to be different per class.

Constructor Details

DefaultIoClientFactory

public DefaultIoClientFactory()

Method Details

createOrGetTcpClient

public TcpIoClient createOrGetTcpClient()

Description copied from interface: IoClientFactory

Create or return a cached/reused instance of the TCP resolver that should be used to send DNS data over the wire to the remote target.
It is the responsibility of this method to manage pooling or connection reuse. This method is called right before the connection is made every time the SimpleResolver is called. The implementer of this method should be aware and choose how to pool or reuse connections.

Specified by:

createOrGetTcpClient in interface IoClientFactory

Returns:

an instance of the tcp resolver client

createOrGetUdpClient

public UdpIoClient createOrGetUdpClient()

Description copied from interface: IoClientFactory

Create or return a cached/reused instance of the UDP resolver that should be used to send DNS data over the wire to the remote target.

Specified by:

createOrGetUdpClient in interface IoClientFactory

Returns:

an instance of the udp resolver client