com.graphhopper.routing.util.parsers.OSMRoundaboutParser Maven / Gradle / Ivy

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/*
 *  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.BooleanEncodedValue;
import com.graphhopper.routing.ev.EncodedValue;
import com.graphhopper.routing.ev.EncodedValueLookup;
import com.graphhopper.routing.ev.Roundabout;
import com.graphhopper.storage.IntsRef;

import java.util.List;

public class OSMRoundaboutParser implements TagParser {

    private final BooleanEncodedValue roundaboutEnc;

    public OSMRoundaboutParser() {
        this(Roundabout.create());
    }

    public OSMRoundaboutParser(BooleanEncodedValue roundaboutEnc) {
        this.roundaboutEnc = roundaboutEnc;
    }

    @Override
    public void createEncodedValues(EncodedValueLookup lookup, List list) {
        list.add(roundaboutEnc);
    }

    @Override
    public IntsRef handleWayTags(IntsRef edgeFlags, ReaderWay way, boolean ferry, IntsRef relationFlags) {
        if (ferry)
            return edgeFlags;
        boolean isRoundabout = way.hasTag("junction", "roundabout") || way.hasTag("junction", "circular");
        if (isRoundabout)
            roundaboutEnc.setBool(false, edgeFlags, true);
        return edgeFlags;
    }
}