org.apache.ambari.server.utils

Class HostUtils

java.lang.Object

org.apache.ambari.server.utils.HostUtils

public class HostUtils
extends Object

HostUtils provides utilities related to processing and validating hosts and host names.

Constructor Summary

Constructors

Constructor and Description
HostUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	isValidHostname(String hostname) Validates a hostname to ensure it meets the specifications described in RFC 1123.

Methods inherited from class java.lang.Object

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

Constructor Detail

HostUtils

public HostUtils()

Method Detail

isValidHostname

public static boolean isValidHostname(String hostname)

Validates a hostname to ensure it meets the specifications described in RFC 1123.

Note: this does not validate whether the host exists or if the name is a valid DNS name. For example, host.example.anything is a valid host name however may be an invalid DNS name since "anything" may not be a valid top-level domain.

Parameters:

hostname - a hostname

Returns:

true if the hostname is valid; false otherwise