org.aksw.limes.core.io.query

Class ResilientSparqlQueryModule

java.lang.Object

org.aksw.limes.core.io.query.SparqlQueryModule

org.aksw.limes.core.io.query.ResilientSparqlQueryModule

All Implemented Interfaces:

IQueryModule

public class ResilientSparqlQueryModule
extends SparqlQueryModule
implements IQueryModule

Version:

Jul 12, 2016

Author:

Mohamed Sherif (sherif@informatik.uni-leipzig.de)

Field Summary

Fields

Modifier and Type	Field and Description
protected String	cacheDirectory
protected org.slf4j.Logger	logger
protected int	pageSize
protected int	requestDelayInMs
protected int	retryCount
protected int	retryDelayInMS
protected long	timeToLive

Fields inherited from class org.aksw.limes.core.io.query.SparqlQueryModule

kb

Constructor Summary

Constructors

Constructor and Description
ResilientSparqlQueryModule(KBInfo kbInfo)
ResilientSparqlQueryModule(KBInfo kbinfo, org.slf4j.Logger logger, int retryCount, int retryDelayInMS, int requestDelayInMs, int pageSize, long timeToLive, String cacheDirectory)

Method Summary

Modifier and Type	Method and Description
void	fillCache(ACache cache, boolean sparql) Reads from a SPARQL endpoint or a file and writes the results in a cache
protected org.aksw.jena_sparql_api.core.QueryExecutionFactory	initQueryExecution(KBInfo kbInfo)

Methods inherited from class org.aksw.limes.core.io.query.SparqlQueryModule

fillCache, generateQuery

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.limes.core.io.query.IQueryModule

fillCache

Field Detail

logger

protected org.slf4j.Logger logger

retryCount

protected int retryCount

retryDelayInMS

protected int retryDelayInMS

requestDelayInMs

protected int requestDelayInMs

pageSize

protected int pageSize

timeToLive

protected long timeToLive

cacheDirectory

protected String cacheDirectory

Constructor Detail

ResilientSparqlQueryModule

public ResilientSparqlQueryModule(KBInfo kbInfo)

ResilientSparqlQueryModule

public ResilientSparqlQueryModule(KBInfo kbinfo,
                                  org.slf4j.Logger logger,
                                  int retryCount,
                                  int retryDelayInMS,
                                  int requestDelayInMs,
                                  int pageSize,
                                  long timeToLive,
                                  String cacheDirectory)

Method Detail

fillCache

public void fillCache(ACache cache,
                      boolean sparql)

Reads from a SPARQL endpoint or a file and writes the results in a cache

Overrides:

fillCache in class SparqlQueryModule

Parameters:

cache - The cache in which the content on the SPARQL endpoint is to be written

sparql - True if the endpoint is a remote SPARQL endpoint, else assume that is is a jena model

initQueryExecution

protected org.aksw.jena_sparql_api.core.QueryExecutionFactory initQueryExecution(KBInfo kbInfo)
                                                                          throws ClassNotFoundException,
                                                                                 SQLException

Parameters:

kbInfo - knowledge base information object

Returns:

QueryExecutionFactory object

Throws:

ClassNotFoundException - if class not found

SQLException - if SQL contains errors