/*
 * 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
 *
 *   https://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.
 *
 *   SPDX-License-Identifier: Apache-2.0
 */

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.
 * <p>
 * A sink for writer output.
 */
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) {}
}
