Package org.eclipse.rdf4j.federated

Class EndpointManager

java.lang.Object

org.eclipse.rdf4j.federated.EndpointManager

public class EndpointManager
extends Object

EndpointManager is the singleton instance that manages available Endpoints. Particular endpoints can be looked up by their id and connection and all relevant information can be used.

Author:

Andreas Schwarte

Field Summary

Fields

Modifier and Type	Field	Description
protected HashMap<String,Endpoint>	endpoints
protected boolean	inRepair
protected Long	lastRepaired
protected static final org.slf4j.Logger	log

Method Summary

Modifier and Type	Method	Description
void	addEndpoint(Endpoint e)	Add the (initialized) endpoint to this endpoint manager to be used by the FederationManager.
Collection<Endpoint>	getAvailableEndpoints()
Endpoint	getEndpoint(String endpointID)
Endpoint	getEndpointByName(String endpointName)
Endpoint	getEndpointByUrl(String endpointUrl)	Return the Endpoint for the provided endpoint url, if it exists.
List<Endpoint>	getEndpoints(Set<String> endpointIDs)
static EndpointManager	initialize(List<Endpoint> endpoints)	Initialize the singleton endpoint manager with the provided endpoints
protected void	removeEndpoint(Endpoint e)	Remove the provided endpoint from this endpoint manager to be used by the FederationManager.

Methods inherited from class java.lang.Object

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

Field Details

log

protected static final org.slf4j.Logger log

endpoints

protected HashMap<String,Endpoint> endpoints

inRepair

protected boolean inRepair

lastRepaired

protected Long lastRepaired

Method Details

initialize

public static EndpointManager initialize(List<Endpoint> endpoints)

Initialize the singleton endpoint manager with the provided endpoints

Parameters:

endpoints -

addEndpoint

public void addEndpoint(Endpoint e)

Add the (initialized) endpoint to this endpoint manager to be used by the FederationManager.

Parameters:

e - the endpoint

removeEndpoint

protected void removeEndpoint(Endpoint e)
                       throws NoSuchElementException

Remove the provided endpoint from this endpoint manager to be used by the FederationManager. In addition, this method unregisters the FederatedService from RDF4J.

Parameters:

e - the endpoint

Throws:

NoSuchElementException - if there is no mapping for some endpoint id

getAvailableEndpoints

public Collection<Endpoint> getAvailableEndpoints()

Returns:

a collection of available endpoints in this endpoint manager

getEndpoint

public Endpoint getEndpoint(String endpointID)

Parameters:

endpointID -

Returns:

the endpoint corresponding to the provided id or null

getEndpointByUrl

public Endpoint getEndpointByUrl(String endpointUrl)

Return the Endpoint for the provided endpoint url, if it exists. Otherwise return null.

Parameters:

endpointUrl -

Returns:

the endpoint by its URL

getEndpointByName

public Endpoint getEndpointByName(String endpointName)

getEndpoints

public List<Endpoint> getEndpoints(Set<String> endpointIDs)
                            throws NoSuchElementException

Parameters:

endpointIDs -

Returns:

a list of endpoints corresponding to the provided ids

Throws:

NoSuchElementException - if there is no mapping for some endpoint id