/**
 * 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.writer;

import java.io.OutputStream ;
import java.io.Writer ;

import org.apache.jena.riot.Lang ;
import org.apache.jena.riot.RDFFormat ;
import org.apache.jena.riot.WriterDatasetRIOT ;
import org.apache.jena.riot.WriterDatasetRIOTFactory ;
import org.apache.jena.riot.system.PrefixMap ;
import org.apache.jena.sparql.core.DatasetGraph ;
import org.apache.jena.sparql.util.Context ;

/** Null writer for datasets - can be used for RDF graphs via the adapter in from RiotWriterLib */ 
public class NullWriter implements WriterDatasetRIOT
{
    public static WriterDatasetRIOTFactory factory = new WriterDatasetRIOTFactory() {
        @Override
        public WriterDatasetRIOT create(RDFFormat syntaxForm)
        {
            return new NullWriter(syntaxForm) ;
        }} ;
        
    private RDFFormat format ;
    
    private NullWriter(RDFFormat format) { this.format = format ; }
        
    @Override
    public Lang getLang()
    {
        return format.getLang() ;
    }

    @Override
    public void write(OutputStream out, DatasetGraph datasetGraph, PrefixMap prefixMap, String baseURI, Context context)
    {}

    @Override
    public void write(Writer out, DatasetGraph datasetGraph, PrefixMap prefixMap, String baseURI, Context context)
    {}
}