Package org.eclipse.rdf4j.federated

Class FedXFactory

java.lang.Object

org.eclipse.rdf4j.federated.FedXFactory

public class FedXFactory
extends Object

FedX initialization factory methods for convenience: methods initialize the FederationManager and all required FedX structures. See FederationManager for some a code snippet.

Use the newFederation() builder to create an advanced and customized federation

Author:

Andreas Schwarte

Field Summary

Fields

Modifier and Type	Field	Description
protected FedXConfig	config
protected FederatedServiceResolver	federatedServiceResolver
protected File	fedxBaseDir
protected static final org.slf4j.Logger	log
protected List<Endpoint>	members
protected RepositoryResolver	repositoryResolver
protected FederationEvaluationStrategyFactory	strategyFactory
protected WriteStrategyFactory	writeStrategyFactory

Method Summary

Modifier and Type	Method	Description
FedXRepository	create()	Create the federation using the provided configuration
static FedXRepository	createFederation(File dataConfig)	Create the federation with a specified data source configuration file (*.ttl).
static FedXRepository	createFederation(List<Endpoint> endpoints)	Create the federation by providing the endpoints to add.
static FedXRepository	createSparqlFederation(List<String> sparqlEndpoints)	Create a federation with the provided sparql endpoints
static FedXFactory	newFederation()	Create a new customizable FedX federation.
FedXFactory	withConfig(FedXConfig config)
FedXFactory	withFederatedServiceResolver(FederatedServiceResolver federatedServiceResolver)
FedXFactory	withFederationEvaluationStrategyFactory(FederationEvaluationStrategyFactory strategyFactory)
FedXFactory	withFedXBaseDir(File fedxBaseDir)	Configure the FedX base directory at federation construction time.
FedXFactory	withMembers(File dataConfig)
FedXFactory	withMembers(List<Endpoint> endpoints)
FedXFactory	withMembers(Model model)	Initialize the federation with members from the model.
FedXFactory	withRepositoryResolver(RepositoryResolver repositoryResolver)
FedXFactory	withResolvableEndpoint(String repositoryId)
FedXFactory	withResolvableEndpoint(String repositoryId, boolean writable)
FedXFactory	withSparqlEndpoint(String sparqlEndpoint)
FedXFactory	withSparqlEndpoints(List<String> sparqlEndpoints)
FedXFactory	withWriteStrategyFactory(WriteStrategyFactory writeStrategyFactory)	Specify the WriteStrategyFactory to be used.

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

repositoryResolver

protected RepositoryResolver repositoryResolver

federatedServiceResolver

protected FederatedServiceResolver federatedServiceResolver

strategyFactory

protected FederationEvaluationStrategyFactory strategyFactory

writeStrategyFactory

protected WriteStrategyFactory writeStrategyFactory

members

protected List<Endpoint> members

config

protected FedXConfig config

fedxBaseDir

protected File fedxBaseDir

Method Details

createSparqlFederation

public static FedXRepository createSparqlFederation(List<String> sparqlEndpoints)
                                             throws Exception

Create a federation with the provided sparql endpoints

Parameters:

sparqlEndpoints - the list of SPARQL endpoints

Returns:

the configured FedX federation Sail wrapped in a FedXRepository

Throws:

Exception

createFederation

public static FedXRepository createFederation(File dataConfig)
                                       throws Exception

Create the federation with a specified data source configuration file (*.ttl). Federation members are constructed from the data source configuration. Sample data source configuration files can be found in the documentation.

Parameters:

dataConfig - the location of the data source configuration

Returns:

the configured FedX federation Sail wrapped in a FedXRepository

Throws:

Exception

createFederation

public static FedXRepository createFederation(List<Endpoint> endpoints)
                                       throws FedXException

Create the federation by providing the endpoints to add. The fedx configuration can provide information about the dataConfig to be used which may contain the default federation members.

Parameters:

endpoints - additional endpoints to be added, may be null or empty

Returns:

the configured FedX federation Sail wrapped in a FedXRepository

Throws:

FedXException

newFederation

public static FedXFactory newFederation()

Create a new customizable FedX federation. Once all configuration is supplied, the Federation can be created using create()

Returns:

the FedXFactory builder

withRepositoryResolver

public FedXFactory withRepositoryResolver(RepositoryResolver repositoryResolver)

withFederatedServiceResolver

public FedXFactory withFederatedServiceResolver(FederatedServiceResolver federatedServiceResolver)

withFederationEvaluationStrategyFactory

public FedXFactory withFederationEvaluationStrategyFactory(FederationEvaluationStrategyFactory strategyFactory)

withWriteStrategyFactory

public FedXFactory withWriteStrategyFactory(WriteStrategyFactory writeStrategyFactory)

Specify the WriteStrategyFactory to be used. If not explicitly set, DefaultWriteStrategyFactory is used.

Parameters:

writeStrategyFactory - the WriteStrategyFactory to be used.

Returns:

this factory

withMembers

public FedXFactory withMembers(List<Endpoint> endpoints)

withMembers

public FedXFactory withMembers(File dataConfig)

withMembers

public FedXFactory withMembers(Model model)

Initialize the federation with members from the model.

Currently the types NativeStore, ResolvableEndpoint and SPARQLEndpoint are supported. For details please refer to the documentation in NativeRepositoryInformation, ResolvableRepositoryInformation and SPARQLRepositoryInformation.

Parameters:

model - the model defining the federation members

Returns:

the factory

withSparqlEndpoint

public FedXFactory withSparqlEndpoint(String sparqlEndpoint)

withSparqlEndpoints

public FedXFactory withSparqlEndpoints(List<String> sparqlEndpoints)

withResolvableEndpoint

public FedXFactory withResolvableEndpoint(String repositoryId)

withResolvableEndpoint

public FedXFactory withResolvableEndpoint(String repositoryId,
 boolean writable)

withConfig

public FedXFactory withConfig(FedXConfig config)

withFedXBaseDir

public FedXFactory withFedXBaseDir(File fedxBaseDir)

Configure the FedX base directory at federation construction time.

Parameters:

fedxBaseDir - the fedx base directory

Returns:

the FedXFactory instance

create

public FedXRepository create()

Create the federation using the provided configuration

Returns:

the configured FedXRepository