/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hp.hpl.jena.query;
import org.apache.jena.atlas.web.auth.HttpAuthenticator;
import org.apache.jena.web.DatasetAdapter ;
import org.apache.jena.web.DatasetGraphAccessor ;
import org.apache.jena.web.DatasetGraphAccessorBasic ;
import org.apache.jena.web.DatasetGraphAccessorHTTP ;
import com.hp.hpl.jena.sparql.core.DatasetGraph ;
/**
* Factory which produces dataset accessors
*
*/
public class DatasetAccessorFactory
{
/**
* Create an accessor for a remote HTTP service
* @param serviceURI Service URI
* @return Accessor
*/
public static DatasetAccessor createHTTP(String serviceURI)
{
return adapt(new DatasetGraphAccessorHTTP(serviceURI)) ;
}
/**
* Create an accessor for a remote HTTP service that requires authentication
* @param serviceURI Service URI
* @param authenticator HTTP authenticator
* @return Accessor
*/
public static DatasetAccessor createHTTP(String serviceURI, HttpAuthenticator authenticator)
{
return adapt(new DatasetGraphAccessorHTTP(serviceURI, authenticator));
}
/**
* Create an accessor for a local dataset
* @param dataset Dataset
* @return Accessor
*/
public static DatasetAccessor create(DatasetGraph dataset)
{
return adapt(new DatasetGraphAccessorBasic(dataset)) ;
}
/**
* Create an accessor for a local dataset
* @param dataset Dataset
* @return Accessor
*/
public static DatasetAccessor create(Dataset dataset)
{
return adapt(new DatasetGraphAccessorBasic(dataset.asDatasetGraph())) ;
}
/**
* Makes an graph level accessor over a local dataset
* @param dataset Dataset
* @return Accessor
*/
public static DatasetGraphAccessor make(DatasetGraph dataset)
{
return new DatasetGraphAccessorBasic(dataset) ;
}
private static DatasetAccessor adapt(DatasetGraphAccessor dgu)
{
return new DatasetAdapter(dgu) ;
}
}