Package jnr.netdb
Class Service
- java.lang.Object
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- jnr.netdb.Service
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public final class Service extends java.lang.Object
Holds information about TCP and UDP services on a host.
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
Service.ServicesDBSingletonHolder
Holds the global lazily-loaded instance of the ServicesDB
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Field Summary
Fields Modifier and Type Field Description private java.util.Collection<java.lang.String>
aliases
All the aliases for this serviceprivate int
port
TCP or UDP port number(package private) java.lang.String
proto
Protocol to useprivate java.lang.String
serviceName
Official service name
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Constructor Summary
Constructors Constructor Description Service(java.lang.String name, int port, java.lang.String proto, java.util.Collection<java.lang.String> aliases)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.util.Collection<java.lang.String>
getAliases()
Gets a list of aliases thisService
is also known as.static java.util.Collection<Service>
getAllServices()
Returns a list of all services.java.lang.String
getName()
Returns the official IANA name of thisService
int
getPort()
Returns the official IANA port for thisService
static Service
getServiceByName(java.lang.String name, java.lang.String proto)
Locates a service by name and protocol.static Service
getServiceByPort(int port, java.lang.String proto)
Locates a service by port and protocol.private static ServicesDB
getServicesDB()
Returns the currently loaded ServicesDBjava.lang.String
toString()
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Method Detail
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getServiceByName
public static final Service getServiceByName(java.lang.String name, java.lang.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, ornull
if the service could not be found.
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getServiceByPort
public static final Service getServiceByPort(int port, java.lang.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, ornull
if the service could not be found.
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getAllServices
public static final java.util.Collection<Service> getAllServices()
Returns a list of all services.- Returns:
- a
Collection
ofService
instances.
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getName
public final java.lang.String getName()
Returns the official IANA name of thisService
- Returns:
- The name of this
Service
as aString
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getPort
public final int getPort()
Returns the official IANA port for thisService
- Returns:
- The port for this
Service
as anint
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getAliases
public final java.util.Collection<java.lang.String> getAliases()
Gets a list of aliases thisService
is also known as.- Returns:
- A
Collection
of Strings for aliases thisService
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getServicesDB
private static final ServicesDB getServicesDB()
Returns the currently loaded ServicesDB- Returns:
- an instance of
ServicesDB
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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