Package org.eblocker.server.common.network.unix

Class DnsResolver

java.lang.Object

org.eblocker.server.common.network.unix.DnsResolver

public class DnsResolver
extends Object

A simple DNS resolver that can send queries to a given host and port. It should only be used for queries of type A and AAAA.

Constructor Summary

Constructors

Constructor	Description
DnsResolver(io.netty.channel.nio.NioEventLoopGroup workerGroup)

Method Summary

Modifier and Type	Method	Description
List<DnsResponse>	resolve(String nameServer, int port, List<DnsQuery> queries)	Resolve queries with the given name server and port
List<DnsResponse>	resolve(String nameServer, List<DnsQuery> queries)	Resolve queries with the given name server using the standard port 53
void	setTimeout(int milliSeconds)	Set timeout in milliseconds

Methods inherited from class java.lang.Object

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

Constructor Details

DnsResolver

@Inject
public DnsResolver(io.netty.channel.nio.NioEventLoopGroup workerGroup)

Method Details

setTimeout

public void setTimeout(int milliSeconds)

Set timeout in milliseconds

Parameters:

milliSeconds - number of milliseconds to wait for a response

resolve

public List<DnsResponse> resolve(String nameServer,
 List<DnsQuery> queries)

Resolve queries with the given name server using the standard port 53

resolve

public List<DnsResponse> resolve(String nameServer,
 int port,
 List<DnsQuery> queries)

Resolve queries with the given name server and port

Parameters:

nameServer - name server

port - port of name server

queries - list of queries. Only A and AAAA types are allowed.

Returns:

list of responses. Note: the name in a response might differ from the name in the corresponding query if a CNAME is involved.