com.graphhopper.util.details.EdgeKeyDetails Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of graphhopper-core Show documentation

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.util.details;

import com.graphhopper.routing.querygraph.VirtualEdgeIteratorState;
import com.graphhopper.util.EdgeIteratorState;

import static com.graphhopper.util.Parameters.Details.EDGE_KEY;

public class EdgeKeyDetails extends AbstractPathDetailsBuilder {

    private int edgeKey = -1;

    public EdgeKeyDetails() {
        super(EDGE_KEY);
    }

    @Override
    public boolean isEdgeDifferentToLastEdge(EdgeIteratorState edge) {
        int newKey = edge instanceof VirtualEdgeIteratorState
                ? ((VirtualEdgeIteratorState) edge).getOriginalEdgeKey() : edge.getEdgeKey();
        if (newKey != edgeKey) { // do not duplicate path detail if going over via point (two virtual edges)
            edgeKey = newKey;
            return true;
        }
        return false;
    }

    @Override
    public Object getCurrentValue() {
        return this.edgeKey;
    }
}