RoadSurface.java

// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.plugins.graphview.core.property;

import java.util.Collection;

import org.openstreetmap.josm.plugins.graphview.core.access.AccessParameters;
import org.openstreetmap.josm.plugins.graphview.core.data.DataSource;
import org.openstreetmap.josm.plugins.graphview.core.data.TagGroup;

public class RoadSurface implements RoadPropertyType<String> {

    @Override
    public <N, W, R, M> String evaluateN(N node, AccessParameters accessParameters,
            DataSource<N, W, R, M> dataSource) {
        return null;
    }

    @Override
    public <N, W, R, M> String evaluateW(W way, boolean forward, AccessParameters accessParameters,
            DataSource<N, W, R, M> dataSource) {
        assert way != null && accessParameters != null && dataSource != null;

        TagGroup tags = dataSource.getTagsW(way);
        return tags.getValue("surface");

    }

    @Override
    public boolean isUsable(Object propertyValue, AccessParameters accessParameters) {
        assert propertyValue instanceof String;

        String surface = (String) propertyValue;

        Collection<String> surfaceBlacklist =
            accessParameters.getVehiclePropertyValue(VehiclePropertyTypes.SURFACE_BLACKLIST);

        if (surfaceBlacklist != null && surfaceBlacklist.contains(surface)) {
            return false;
        } else {
            return true;
        }
    }

}