org.opennms.netmgt.dnsresolver.api

Interface DnsResolver

All Known Implementing Classes:

NettyDnsResolver, NettyResolverContext

public interface DnsResolver

Asynchronous DNS resolution.

Author:

jwhite

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Optional<InetAddress>>	lookup(String hostname) Perform a DNS lookup for the given hostname.
CompletableFuture<Optional<String>>	reverseLookup(InetAddress inetAddress) Perform a reverse DNS lookup for the given IP address.

Method Detail

lookup

CompletableFuture<Optional<InetAddress>> lookup(String hostname)

Perform a DNS lookup for the given hostname. Returns a future that contains the lookup results. If the optional is empty the lookup was completed but no result was found.

Parameters:

hostname - hostname to lookup

Returns:

a future

reverseLookup

CompletableFuture<Optional<String>> reverseLookup(InetAddress inetAddress)

Perform a reverse DNS lookup for the given IP address. Returns a future that contains the lookup results. If the optional is empty the lookup was completed but no result was found.

Parameters:

inetAddress - IP address to lookup

Returns:

a future