MainModeIdentifierImpl.java

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/* *********************************************************************** *
 * project: org.matsim.*
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 * copyright       : (C) 2013 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
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 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
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 *   See also COPYING, LICENSE and WARRANTY file                           *
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package org.matsim.core.router;

import java.util.List;

import org.matsim.api.core.v01.TransportMode;
import org.matsim.api.core.v01.population.Leg;
import org.matsim.api.core.v01.population.PlanElement;

public final class MainModeIdentifierImpl implements MainModeIdentifier {
    @Override
    public String identifyMainMode( final List<? extends PlanElement> tripElements) {
        String mode = ((Leg) tripElements.get( 0 )).getMode();
//      return mode.equals( TransportMode.transit_walk ) ? TransportMode.pt : mode;
        if ( mode.equals( TransportMode.transit_walk ) ) {
            return TransportMode.pt ;

            // (yy not conforming to std transport planning since that would look for mode with the highest "weight"
            // in the whole trip, but it is what I found and at least one test depends on it. kai, feb'16)

            // Marcel's SBB raptor returns access/egress_walk to and from pt, and transit_walk only
            // for direct walk (and presumably in between pt legs, if necessary).  kai/gregor, sep'18
        }
        if ( mode.endsWith( "_fallback" ) )  {
            return mode.substring(0, mode.length() - 9) ;
        }
        
        for ( PlanElement pe : tripElements ) {
            if ( pe instanceof Leg ) {
                Leg leg = (Leg) pe ;
                String mode2 = leg.getMode() ;
                if ( !mode2.contains( TransportMode.non_network_walk ) &&
                        !mode2.contains( TransportMode.transit_walk ) ) {
                    return mode2 ;
                }
            }
        }

        throw new RuntimeException( "could not identify main mode "+ tripElements) ;
        
    }
}