com.netflix.discovery.endpoint

Class DnsResolver

java.lang.Object

com.netflix.discovery.endpoint.DnsResolver

public final class DnsResolver
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static java.util.Set<java.lang.String>	getCNamesFromTxtRecord(java.lang.String discoveryDnsName) Looks up the DNS name provided in the JNDI context.
static javax.naming.directory.DirContext	getDirContext() Load up the DNS JNDI context provider.
static java.lang.String	resolve(java.lang.String originalHost) Resolve host name to the bottom A-Record or the latest available CNAME
static java.util.List<java.lang.String>	resolveARecord(java.lang.String rootDomainName) Look into A-record at a specific DNS address.

Methods inherited from class java.lang.Object

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

Method Detail

getDirContext

public static javax.naming.directory.DirContext getDirContext()

Load up the DNS JNDI context provider.

resolve

public static java.lang.String resolve(java.lang.String originalHost)

Resolve host name to the bottom A-Record or the latest available CNAME

Returns:

resolved host name

resolveARecord

@Nullable
public static java.util.List<java.lang.String> resolveARecord(java.lang.String rootDomainName)

Look into A-record at a specific DNS address.

Returns:

resolved IP addresses or null if no A-record was present

getCNamesFromTxtRecord

public static java.util.Set<java.lang.String> getCNamesFromTxtRecord(java.lang.String discoveryDnsName)
                                                              throws javax.naming.NamingException

Looks up the DNS name provided in the JNDI context.

Throws:

javax.naming.NamingException