com.bigdata.rdf.graph.util

Class GraphLoader

java.lang.Object

com.bigdata.rdf.graph.util.GraphLoader

Direct Known Subclasses:

RAMGraphLoader, SailGraphLoader

public abstract class GraphLoader
extends Object

Utility to load data into a graph.

Author:

Bryan Thompson

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	GraphLoader.AddStatementHandler Helper class adds statements to the sail as they are visited by a parser.

Constructor Summary

Constructors

Constructor and Description
GraphLoader()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract org.openrdf.model.ValueFactory	getValueFactory() Return the ValueFactory that will be set on the RDFParser .
void	loadGraph(org.openrdf.rio.RDFFormat fallback, String... resources)
void	loadGraph(org.openrdf.rio.RDFFormat fallback, String resource) Load a resource from the classpath, the file system, or a URI.
protected abstract GraphLoader.AddStatementHandler	newStatementHandler() Factory for the helper class that adds statements to the target graph.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphLoader

public GraphLoader()

Method Detail

loadGraph

public void loadGraph(org.openrdf.rio.RDFFormat fallback,
             String... resources)
               throws Exception

Throws:

Exception

getValueFactory

protected abstract org.openrdf.model.ValueFactory getValueFactory()

Return the ValueFactory that will be set on the RDFParser . This is necessary for the RDR parser.

loadGraph

public void loadGraph(org.openrdf.rio.RDFFormat fallback,
             String resource)
               throws IOException,
                      URISyntaxException,
                      org.openrdf.rio.RDFParseException,
                      org.openrdf.rio.RDFHandlerException

Load a resource from the classpath, the file system, or a URI. GZ compressed files are decompressed. Directories are processed recursively. The entries in a ZIP archive are processed. Resources that are not recognized as some RDFFormat will be ignored unless the fallback argument is given, in which case that format will be assumed for such resources.

Parameters:

resource - A resource on the class path, a file or a directory, or a URI.

fallback - The default RDFFormat to be assumed (optional).

Throws:

IOException

URISyntaxException

org.openrdf.rio.RDFHandlerException

org.openrdf.rio.RDFParseException

newStatementHandler

protected abstract GraphLoader.AddStatementHandler newStatementHandler()

Factory for the helper class that adds statements to the target graph.