org.aksw.gerbil.dataset.impl.nif

Class AbstractNIFDataset

java.lang.Object

org.aksw.gerbil.dataset.impl.AbstractDataset

org.aksw.gerbil.dataset.impl.nif.AbstractNIFDataset

All Implemented Interfaces:

Closeable, AutoCloseable, Dataset, InitializableDataset, RdfModelContainingDataset

Direct Known Subclasses:

FileBasedNIFDataset

public abstract class AbstractNIFDataset
extends AbstractDataset
implements RdfModelContainingDataset, InitializableDataset

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AbstractNIFDataset.LocalNIFParser

Field Summary

Fields inherited from class org.aksw.gerbil.dataset.impl.AbstractDataset

granter

Constructor Summary

Constructors

Constructor and Description
AbstractNIFDataset(String name)

Method Summary

Modifier and Type	Method and Description
protected void	closeInputStream(InputStream inputStream) This method is called for closing the input stream that has been returned by getDataAsInputStream().If there are other resources related to this stream that have to be closed, this method can be overwritten to free these resources, too.
protected abstract InputStream	getDataAsInputStream() This method returns an opened InputStream from which the NIF data will be read.
protected abstract org.apache.jena.riot.Lang	getDataLanguage() This method returns the language of the NIF data, e.g., Lang.TURTLE.
List<org.aksw.gerbil.transfer.nif.Document>	getInstances()
String	getName()
org.apache.jena.rdf.model.Model	getRdfModel()
void	init()
int	size()

Methods inherited from class org.aksw.gerbil.dataset.impl.AbstractDataset

close, performClose, setClosePermitionGranter, setName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.gerbil.dataset.Dataset

setClosePermitionGranter, setName

Methods inherited from interface java.io.Closeable

close

Constructor Detail

AbstractNIFDataset

public AbstractNIFDataset(String name)

Method Detail

getDataAsInputStream

protected abstract InputStream getDataAsInputStream()

This method returns an opened InputStream from which the NIF data will be read. If an error occurs while opening the stream, null should be returned. Note that for closing the stream closeInputStream(InputStream) is called. If there are other resources related to this stream that have to be closed, this method can be overwritten to free these resources, too.

Returns:

an opened InputStream or null if an error occurred.

getDataLanguage

protected abstract org.apache.jena.riot.Lang getDataLanguage()

This method returns the language of the NIF data, e.g., Lang.TURTLE.

Returns:

the language of the NIF data

closeInputStream

protected void closeInputStream(InputStream inputStream)

This method is called for closing the input stream that has been returned by getDataAsInputStream().If there are other resources related to this stream that have to be closed, this method can be overwritten to free these resources, too.

Parameters:

inputStream - the input stream which should be closed

init

public void init()
          throws GerbilException

Specified by:

init in interface InitializableDataset

Throws:

GerbilException

getName

public String getName()

Specified by:

getName in interface Dataset

Overrides:

getName in class AbstractDataset

size

public int size()

Specified by:

size in interface Dataset

getInstances

public List<org.aksw.gerbil.transfer.nif.Document> getInstances()

Specified by:

getInstances in interface Dataset

getRdfModel

public org.apache.jena.rdf.model.Model getRdfModel()

Specified by:

getRdfModel in interface RdfModelContainingDataset