/**
* 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 org.apache.jena.riot.adapters;
import java.io.InputStream ;
import java.io.Reader ;
import java.util.Locale ;
import org.apache.jena.riot.RDFDataMgr ;
import org.apache.jena.riot.RDFLanguages ;
import com.hp.hpl.jena.graph.GraphEvents ;
import com.hp.hpl.jena.rdf.model.Model ;
import com.hp.hpl.jena.rdf.model.RDFErrorHandler ;
import com.hp.hpl.jena.rdf.model.RDFReader ;
import com.hp.hpl.jena.rdf.model.impl.RDFDefaultErrorHandler ;
import com.hp.hpl.jena.sparql.util.Context ;
import com.hp.hpl.jena.sparql.util.Symbol ;
/** Adapter from Jena2 original style adapter to RIOT reader. */
public class RDFReaderRIOT implements RDFReader
{
private final String basename ; // This will be per reader instance.
private final String hintlang ;
private Context context = new Context() ;
private RDFErrorHandler errorHandler = new RDFDefaultErrorHandler();
public RDFReaderRIOT()
{
basename = "org.apache.jena.riot.reader.generic" ;
hintlang = null ;
}
public RDFReaderRIOT(String lang)
{
basename = "org.apache.jena.riot.reader."+lang.toLowerCase(Locale.ENGLISH) ;
hintlang = lang ;
}
@SuppressWarnings("deprecation")
@Override
public void read(Model model, Reader r, String base)
{
startRead(model) ;
RDFDataMgr.read(model, r, base, RDFLanguages.nameToLang(hintlang)) ;
finishRead(model) ;
}
@Override
public void read(Model model, InputStream r, String base)
{
startRead(model) ;
RDFDataMgr.read(model, r, base, RDFLanguages.nameToLang(hintlang)) ;
finishRead(model) ;
}
@Override
public void read(Model model, String url)
{
startRead(model) ;
RDFDataMgr.read(model, url, RDFLanguages.nameToLang(hintlang)) ;
finishRead(model) ;
}
@Override
public Object setProperty(String propName, Object propValue)
{
Symbol sym = Symbol.create(basename+propName) ;
Object oldObj = context.get(sym) ;
return oldObj ;
}
private void startRead(Model model)
{ model.notifyEvent( GraphEvents.startRead ); }
private void finishRead(Model model)
{ model.notifyEvent( GraphEvents.finishRead ) ; }
@Override
public RDFErrorHandler setErrorHandler(RDFErrorHandler errHandler)
{
RDFErrorHandler old = errorHandler ;
errorHandler = errHandler ;
return old ;
}
}