org.wildfly.naming.client

Interface NamingProvider

All Superinterfaces:

AutoCloseable

All Known Implementing Classes:

HttpNamingProvider, RemoteNamingProvider

public interface NamingProvider
extends AutoCloseable

A provider for a single naming scheme. Each implementation of a naming provider has different characteristics.

Author:

David M. Lloyd

Method Summary

Modifier and Type	Method and Description
default void	close() Close the provider.
static NamingProvider	getCurrentNamingProvider() Get the current naming provider being used for the current deserialization operation.
default PeerIdentity	getPeerIdentityForNaming() Get a peer identity to use for context operations.
PeerIdentity	getPeerIdentityForNaming(URI location) Get the peer identity to use for context operations for the specified location.
default PeerIdentity	getPeerIdentityForNamingUsingRetry(RetryContext context) Get a peer identity to use for context operations, retrying on failure.
ProviderEnvironment	getProviderEnvironment() Get the provider environment.
default <T,U,R> R	performAction(BiFunction<T,U,R> function, T arg1, U arg2) Perform an action under the current naming provider.
default <T,U,R,E extends Exception> R	performExceptionAction(org.wildfly.common.function.ExceptionBiFunction<T,U,R,E> function, T arg1, U arg2) Perform an action under the current naming provider.
default <T,R> R	performExceptionAction(NamingOperation<T,R> function, RetryContext contextOrNull, Name name, T param) Perform an action under the current naming provider.
default void	throwNoMoreDestinationsException(RetryContext context) Throws either an ExhaustedDestinationsException utilizing the information passed in the specified RetryContext, or an explicit exception mandated by the context.

Method Detail

getProviderEnvironment

ProviderEnvironment getProviderEnvironment()

Get the provider environment.

Returns:

the provider environment (must not be null)

getPeerIdentityForNaming

default PeerIdentity getPeerIdentityForNaming()
                                       throws NamingException

Get a peer identity to use for context operations. The identity may be fixed or it may vary, depending on the context configuration. If the provider has multiple locations, a location is randomly selected.

Returns:

the peer identity to use (must not be null)

Throws:

NamingException - if connecting, authenticating, or re-authenticating the peer failed

getPeerIdentityForNamingUsingRetry

default PeerIdentity getPeerIdentityForNamingUsingRetry(RetryContext context)
                                                 throws NamingException

Get a peer identity to use for context operations, retrying on failure. The identity may be fixed or it may vary, depending on the context configuration. If the provider has multiple locations, a location is randomly selected. If the retry context is null, a retry will not occur.

Parameters:

context - the retry context for storing state required when retrying

Returns:

the peer identity to use (must not be null)

Throws:

NamingException - if connecting, authenticating, or re-authenticating the peer failed

throwNoMoreDestinationsException

default void throwNoMoreDestinationsException(RetryContext context)
                                       throws NamingException

Throws either an ExhaustedDestinationsException utilizing the information passed in the specified RetryContext, or an explicit exception mandated by the context.

Parameters:

context - the current retry context of this invocation

Throws:

ExhaustedDestinationsException - if no explicit exception is specified

NamingException - if explicity required

RuntimeException - if explicity required

getPeerIdentityForNaming

PeerIdentity getPeerIdentityForNaming(URI location)
                               throws NamingException

Get the peer identity to use for context operations for the specified location. The identity may be fixed or it may vary, depending on the context configuration. The location should be from the list returned by ProviderEnvironment.getProviderUris().

Parameters:

location - a location from ProviderEnvironment.getProviderUris() (must not be null)

Returns:

the peer identity to use (must not be null)

Throws:

NamingException - if connecting, authenticating, or re-authenticating the peer failed

getCurrentNamingProvider

static NamingProvider getCurrentNamingProvider()

Get the current naming provider being used for the current deserialization operation.

Returns:

the current naming provider, or null if no provider-related deserialization is occurring

performAction

default <T,U,R> R performAction(BiFunction<T,U,R> function,
                                T arg1,
                                U arg2)

Perform an action under the current naming provider.

Type Parameters:

T - the first argument type

U - the second argument type

R - the function return type

Parameters:

function - the function to apply (must not be null)

arg1 - the first argument

arg2 - the second argument

Returns:

the function return value

performExceptionAction

default <T,U,R,E extends Exception> R performExceptionAction(org.wildfly.common.function.ExceptionBiFunction<T,U,R,E> function,
                                                             T arg1,
                                                             U arg2)
                                                      throws E extends Exception

Perform an action under the current naming provider.

Type Parameters:

T - the first argument type

U - the second argument type

R - the function return type

E - the function exception type

Parameters:

function - the function to apply (must not be null)

arg1 - the first argument

arg2 - the second argument

Returns:

the function return value

Throws:

E - if the function throws an exception of the given type

E extends Exception

performExceptionAction

default <T,R> R performExceptionAction(NamingOperation<T,R> function,
                                       RetryContext contextOrNull,
                                       Name name,
                                       T param)
                                throws NamingException

Perform an action under the current naming provider.

Type Parameters:

T - the first argument type

R - the function return type

Parameters:

function - the function to apply (must not be null)

Returns:

the function return value

Throws:

NamingException

close

default void close()
            throws NamingException

Close the provider. This method is called when the corresponding InitialContext is closed. This method should be idempotent.

Specified by:

close in interface AutoCloseable

Throws:

NamingException - if an error occurred while closing this provider