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GraphHopper is a fast and memory efficient Java road routing engine working seamlessly with OpenStreetMap data.

There is a newer version: 10.0

/*
 *  Licensed to GraphHopper GmbH under one or more contributor
 *  license agreements. See the NOTICE file distributed with this work for
 *  additional information regarding copyright ownership.
 *
 *  GraphHopper GmbH 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.graphhopper.routing.util.parsers;

import com.graphhopper.reader.ReaderWay;
import com.graphhopper.routing.ev.EnumEncodedValue;
import com.graphhopper.routing.ev.EdgeIntAccess;
import com.graphhopper.routing.ev.RoadEnvironment;
import com.graphhopper.routing.util.FerrySpeedCalculator;
import com.graphhopper.storage.IntsRef;

import java.util.Collections;
import java.util.List;
import java.util.Map;

import static com.graphhopper.routing.ev.RoadEnvironment.*;

public class OSMRoadEnvironmentParser implements TagParser {

    private final EnumEncodedValue roadEnvEnc;

    public OSMRoadEnvironmentParser(EnumEncodedValue roadEnvEnc) {
        this.roadEnvEnc = roadEnvEnc;
    }

    @Override
    public void handleWayTags(int edgeId, EdgeIntAccess edgeIntAccess, ReaderWay readerWay, IntsRef relationFlags) {
        RoadEnvironment roadEnvironment = OTHER;
        if (FerrySpeedCalculator.isFerry(readerWay))
            roadEnvironment = FERRY;
        else if (readerWay.hasTag("bridge") && !readerWay.hasTag("bridge", "no"))
            roadEnvironment = BRIDGE;
        else if (readerWay.hasTag("tunnel") && !readerWay.hasTag("tunnel", "no"))
            roadEnvironment = TUNNEL;
        else if (readerWay.hasTag("ford") || readerWay.hasTag("highway", "ford"))
            roadEnvironment = FORD;
        else {
            List> nodeTags = readerWay.getTag("node_tags", Collections.emptyList());
            // a barrier edge has the restriction in both nodes and the tags are the same
            if (readerWay.hasTag("gh:barrier_edge") && nodeTags.get(0).containsKey("ford"))
                roadEnvironment = FORD;
            else if (readerWay.hasTag("highway"))
                roadEnvironment = ROAD;
        }

        if (roadEnvironment != OTHER)
            roadEnvEnc.setEnum(false, edgeId, edgeIntAccess, roadEnvironment);
    }
}