public class DomainValidator extends java.lang.Object
Domain name validation routines.
This validator provides methods for validating Internet domain names and top-level domains.
Domain names are evaluated according to the standards RFC1034, section 3, and RFC1123, section 2.1. No accomodation is provided for the specialized needs of other applications; if the domain name has been URL-encoded, for example, validation will fail even though the equivalent plaintext version of the same name would have passed.
Validation is also provided for top-level domains (TLDs) as defined and maintained by the Internet Assigned Numbers Authority (IANA):
.arpa, etc.).com, .org, etc.).us, .uk, .cn, etc.)(NOTE: This class does not provide IP address lookup for domain names or methods to ensure that a given domain name matches a specific IP; see java.net.InetAddress for that functionality.)
| Type | Name and description |
|---|---|
static DomainValidator |
getInstance()Returns the singleton instance of this validator. |
boolean |
isValid(java.lang.String domain)Returns true if the specified String parses
as a valid domain name with a recognized top-level domain.
|
boolean |
isValidCountryCodeTld(java.lang.String ccTld)Returns true if the specified String matches any
IANA-defined country code top-level domain. |
boolean |
isValidGenericTld(java.lang.String gTld)Returns true if the specified String matches any
IANA-defined generic top-level domain. |
boolean |
isValidInfrastructureTld(java.lang.String iTld)Returns true if the specified String matches any
IANA-defined infrastructure top-level domain. |
boolean |
isValidTld(java.lang.String tld)Returns true if the specified String matches any
IANA-defined top-level domain. |
| Methods inherited from class | Name |
|---|---|
class java.lang.Object |
java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll() |
Returns the singleton instance of this validator.
Returns true if the specified String parses
as a valid domain name with a recognized top-level domain.
The parsing is case-sensitive.
domain - the parameter to check for domain name syntax Returns true if the specified String matches any
IANA-defined country code top-level domain. Leading dots are
ignored if present. The search is case-sensitive.
ccTld - the parameter to check for country code TLD status Returns true if the specified String matches any
IANA-defined generic top-level domain. Leading dots are ignored
if present. The search is case-sensitive.
gTld - the parameter to check for generic TLD status Returns true if the specified String matches any
IANA-defined infrastructure top-level domain. Leading dots are
ignored if present. The search is case-sensitive.
iTld - the parameter to check for infrastructure TLD status Returns true if the specified String matches any
IANA-defined top-level domain. Leading dots are ignored if present.
The search is case-sensitive.
tld - the parameter to check for TLD status