io.netty.resolver.dns

Class MultiDnsServerAddressStreamProvider

java.lang.Object

io.netty.resolver.dns.MultiDnsServerAddressStreamProvider

All Implemented Interfaces:

DnsServerAddressStreamProvider

@UnstableApi
public final class MultiDnsServerAddressStreamProvider
extends Object
implements DnsServerAddressStreamProvider

A DnsServerAddressStreamProvider which iterates through a collection of DnsServerAddressStreamProvider until the first non-null result is found.

Constructor Summary

Constructors

Constructor and Description
MultiDnsServerAddressStreamProvider(DnsServerAddressStreamProvider... providers) Create a new instance.
MultiDnsServerAddressStreamProvider(List<DnsServerAddressStreamProvider> providers) Create a new instance.

Method Summary

Modifier and Type	Method and Description
DnsServerAddressStream	nameServerAddressStream(String hostname) Ask this provider for the name servers to query for hostname.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiDnsServerAddressStreamProvider

public MultiDnsServerAddressStreamProvider(List<DnsServerAddressStreamProvider> providers)

Create a new instance.

Parameters:

providers - The providers to use for DNS resolution. They will be queried in order.

MultiDnsServerAddressStreamProvider

public MultiDnsServerAddressStreamProvider(DnsServerAddressStreamProvider... providers)

Create a new instance.

Parameters:

providers - The providers to use for DNS resolution. They will be queried in order.

Method Detail

nameServerAddressStream

public DnsServerAddressStream nameServerAddressStream(String hostname)

Description copied from interface: DnsServerAddressStreamProvider

Ask this provider for the name servers to query for hostname.

Specified by:

nameServerAddressStream in interface DnsServerAddressStreamProvider

Parameters:

hostname - The hostname for which to lookup the DNS server addressed to use. If this is the final DnsServerAddressStreamProvider to be queried then generally empty string or '.' correspond to the default DnsServerAddressStream.

Returns:

The DnsServerAddressStream which should be used to resolve hostname.