org.sonatype.aether.impl.internal
Class DefaultServiceLocator

java.lang.Object
  org.sonatype.aether.impl.internal.DefaultServiceLocator

All Implemented Interfaces:

ServiceLocator

public class DefaultServiceLocator
extends java.lang.Object
implements ServiceLocator

A simple service locator that is already setup with all components from this library. To acquire a complete repository system, clients need to add an artifact descriptor, a version resolver, a version range resolver and some repository connectors.

Author:

Benjamin Bentmann

Constructor Summary

DefaultServiceLocator()
Creates a new service locator that already knows about all service implementations included this library.

Method Summary

<T> DefaultServiceLocator	addService(java.lang.Class<T> type, java.lang.Class<? extends T> impl) Adds the implementation class for a service.
<T> T	getService(java.lang.Class<T> type) Gets an instance of the specified service.
<T> java.util.List<T>	getServices(java.lang.Class<T> type) Gets all available instances of the specified service.
protected void	serviceCreationFailed(java.lang.Class<?> type, java.lang.Class<?> impl, java.lang.Throwable exception)
<T> DefaultServiceLocator	setService(java.lang.Class<T> type, java.lang.Class<? extends T> impl) Sets the implementation class for a service.
<T> DefaultServiceLocator	setServices(java.lang.Class<T> type, T... services) Sets the instances for a service.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultServiceLocator

public DefaultServiceLocator()

Creates a new service locator that already knows about all service implementations included this library.

Method Detail

setService

public <T> DefaultServiceLocator setService(java.lang.Class<T> type,
                                            java.lang.Class<? extends T> impl)

Sets the implementation class for a service.

Type Parameters:

T - The service type.

Parameters:

type - The interface describing the service, must not be null.

impl - The implementation class of the service, must not be null.

Returns:

This locator for chaining, never null.

addService

public <T> DefaultServiceLocator addService(java.lang.Class<T> type,
                                            java.lang.Class<? extends T> impl)

Adds the implementation class for a service.

Type Parameters:

T - The service type.

Parameters:

type - The interface describing the service, must not be null.

impl - The implementation class of the service, must not be null.

Returns:

This locator for chaining, never null.

setServices

public <T> DefaultServiceLocator setServices(java.lang.Class<T> type,
                                             T... services)

Sets the instances for a service.

Type Parameters:

T - The service type.

Parameters:

type - The interface describing the service, must not be null.

services - The instances of the service, must not be null.

Returns:

This locator for chaining, never null.

getService

public <T> T getService(java.lang.Class<T> type)

Description copied from interface: ServiceLocator

Gets an instance of the specified service.

Specified by:

getService in interface ServiceLocator

Type Parameters:

T - The service type.

Parameters:

type - The interface describing the service, must not be null.

Returns:

The service instance or null if the service could not be located/initialized.

getServices

public <T> java.util.List<T> getServices(java.lang.Class<T> type)

Description copied from interface: ServiceLocator

Gets all available instances of the specified service.

Specified by:

getServices in interface ServiceLocator

Type Parameters:

T - The service type.

Parameters:

type - The interface describing the service, must not be null.

Returns:

The (read-only) list of available service instances, never null.

serviceCreationFailed

protected void serviceCreationFailed(java.lang.Class<?> type,
                                     java.lang.Class<?> impl,
                                     java.lang.Throwable exception)