Package org.apache.hc.client5.http
Interface DnsResolver
-
- All Known Implementing Classes:
InMemoryDnsResolver
,SystemDefaultDnsResolver
@Contract(threading=STATELESS) public interface DnsResolver
Users may implement this interface to override the normal DNS lookup offered by the OS.- Since:
- 4.2
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.net.InetAddress[]
resolve(java.lang.String host)
Returns the IP address for the specified host name, or null if the given host is not recognized or the associated IP address cannot be used to build an InetAddress instance.java.lang.String
resolveCanonicalHostname(java.lang.String host)
Gets the fully qualified domain name for given host name.
-
-
-
Method Detail
-
resolve
java.net.InetAddress[] resolve(java.lang.String host) throws java.net.UnknownHostException
Returns the IP address for the specified host name, or null if the given host is not recognized or the associated IP address cannot be used to build an InetAddress instance.- Parameters:
host
- The host name to be resolved by this resolver.- Returns:
- The IP address associated to the given host name, or null if the host name is not known by the implementation class.
- Throws:
java.net.UnknownHostException
- See Also:
InetAddress
-
resolveCanonicalHostname
java.lang.String resolveCanonicalHostname(java.lang.String host) throws java.net.UnknownHostException
Gets the fully qualified domain name for given host name.- Throws:
java.net.UnknownHostException
- Since:
- 5.0
-
-