org.eclipse.rdf4j.query.algebra.evaluation.federation

Class FederatedServiceResolverImpl

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.federation.AbstractFederatedServiceResolver

org.eclipse.rdf4j.query.algebra.evaluation.federation.FederatedServiceResolverImpl

All Implemented Interfaces:

HttpClientDependent, SesameClientDependent, SessionManagerDependent, FederatedServiceResolver

public class FederatedServiceResolverImpl
extends AbstractFederatedServiceResolver
implements FederatedServiceResolver, HttpClientDependent, SessionManagerDependent

The FederatedServiceResolverImpl is used to manage a set of FederatedService instances, which are used to evaluate SERVICE expressions for particular service Urls.

Lookup can be done via the serviceUrl using the method AbstractFederatedServiceResolver.getService(String). If there is no service for the specified url, a SPARQLFederatedService is created and registered for future use.

Author:

Andreas Schwarte, James Leigh

Field Summary

Fields inherited from class org.eclipse.rdf4j.query.algebra.evaluation.federation.AbstractFederatedServiceResolver

endpointToService

Constructor Summary

Constructors

Constructor and Description
FederatedServiceResolverImpl()

Method Summary

Modifier and Type	Method and Description
protected FederatedService	createService(String serviceUrl) Create a new FederatedService for the given serviceUrl.
org.apache.http.client.HttpClient	getHttpClient()
HttpClientSessionManager	getHttpClientSessionManager()
void	setHttpClient(org.apache.http.client.HttpClient httpClient)
void	setHttpClientSessionManager(HttpClientSessionManager client)
void	shutDown()

Methods inherited from class org.eclipse.rdf4j.query.algebra.evaluation.federation.AbstractFederatedServiceResolver

getService, hasService, registerService, unregisterAll, unregisterService

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.federation.FederatedServiceResolver

getService

Methods inherited from interface org.eclipse.rdf4j.http.client.SesameClientDependent

getSesameClient, setSesameClient

Constructor Detail

FederatedServiceResolverImpl

public FederatedServiceResolverImpl()

Method Detail

getHttpClientSessionManager

public HttpClientSessionManager getHttpClientSessionManager()

Specified by:

getHttpClientSessionManager in interface SesameClientDependent

Specified by:

getHttpClientSessionManager in interface SessionManagerDependent

setHttpClientSessionManager

public void setHttpClientSessionManager(HttpClientSessionManager client)

Specified by:

setHttpClientSessionManager in interface SesameClientDependent

Specified by:

setHttpClientSessionManager in interface SessionManagerDependent

getHttpClient

public org.apache.http.client.HttpClient getHttpClient()

Specified by:

getHttpClient in interface HttpClientDependent

setHttpClient

public void setHttpClient(org.apache.http.client.HttpClient httpClient)

Specified by:

setHttpClient in interface HttpClientDependent

createService

protected FederatedService createService(String serviceUrl)
                                  throws QueryEvaluationException

Description copied from class: AbstractFederatedServiceResolver

Create a new FederatedService for the given serviceUrl. This method is invoked, if no FederatedService has been created yet for the serviceUrl.

Specified by:

createService in class AbstractFederatedServiceResolver

Parameters:

serviceUrl - the service IRI

Returns:

a non-null FederatedService

Throws:

QueryEvaluationException

shutDown

public void shutDown()

Overrides:

shutDown in class AbstractFederatedServiceResolver