Class Service

java.lang.Object

jnr.netdb.Service

public final class Service
extends Object

Holds information about TCP and UDP services on a host.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	Service.ServicesDBSingletonHolder	Holds the global lazily-loaded instance of the ServicesDB

Field Summary

Fields

Modifier and Type	Field	Description
private final Collection<String>	aliases	All the aliases for this service
private final int	port	TCP or UDP port number
(package private) final String	proto	Protocol to use
private final String	serviceName	Official service name

Constructor Summary

Constructors

Constructor	Description
Service(String name, int port, String proto, Collection<String> aliases)

Method Summary

Modifier and Type	Method	Description
final Collection<String>	getAliases()	Gets a list of aliases this Service is also known as.
static final Collection<Service>	getAllServices()	Returns a list of all services.
final String	getName()	Returns the official IANA name of this Service
final int	getPort()	Returns the official IANA port for this Service
static final Service	getServiceByName(String name, String proto)	Locates a service by name and protocol.
static final Service	getServiceByPort(int port, String proto)	Locates a service by port and protocol.
private static final ServicesDB	getServicesDB()	Returns the currently loaded ServicesDB
String	toString()

Methods inherited from class Object

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

Field Details

serviceName

private final String serviceName

Official service name

port

private final int port

TCP or UDP port number

proto

final String proto

Protocol to use

aliases

private final Collection<String> aliases

All the aliases for this service

Constructor Details

Service

Service(String name,
 int port,
 String proto,
 Collection<String> aliases)

Method Details

getServiceByName

public static final Service getServiceByName(String name,
 String proto)

Locates a service by name and protocol.

Parameters:

name - the official IANA name for the service, or an alias.

proto - the protocol for the service. Usually "tcp" or "udp".

Returns:

a Service instance, or null if the service could not be found.

getServiceByPort

public static final Service getServiceByPort(int port,
 String proto)

Locates a service by port and protocol.

Parameters:

port - the TCP or UDP port of the service.

proto - the protocol for the service. Usually "tcp" or "udp".

Returns:

a Service instance, or null if the service could not be found.

getAllServices

public static final Collection<Service> getAllServices()

Returns a list of all services.

Returns:

a Collection of Service instances.

getName

public final String getName()

Returns the official IANA name of this Service

Returns:

The name of this Service as a String

getPort

public final int getPort()

Returns the official IANA port for this Service

Returns:

The port for this Service as an int

getAliases

public final Collection<String> getAliases()

Gets a list of aliases this Service is also known as.

Returns:

A Collection of Strings for aliases this Service

getServicesDB

private static final ServicesDB getServicesDB()

Returns the currently loaded ServicesDB

Returns:

an instance of ServicesDB

toString

public String toString()

Overrides:

toString in class Object