/*
 * 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.query.spatial;

import org.apache.jena.graph.Node ;
import org.apache.jena.sparql.core.QuadAction ;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SpatialDocProducerTriples implements SpatialDocProducer {
	private static Logger log = LoggerFactory
			.getLogger(SpatialDocProducerTriples.class);
//	private final EntityDefinition defn;
	private final SpatialIndex indexer;
	private boolean started = false;
	
	private SpatialIndexContext context = null; 

	public SpatialDocProducerTriples(SpatialIndex indexer) {
		this.indexer = indexer;
		this.context = new SpatialIndexContext(indexer);
	}

	@Override
	public void start() {
		indexer.startIndexing();
		started = true;
	}

	@Override
	public void finish() {
		indexer.finishIndexing();
	}

	@Override
	public void change(QuadAction qaction, Node g, Node s, Node p, Node o) {
		// One document per triple/quad

		if (qaction != QuadAction.ADD)
			return;
		context.index(g, s, p, o);
	}

    @Override
    public void reset() {}
}