/mnt/WD_3TB/jenkins/jobs/Doxygen_MATSim/workspace/matsim/src/main/java/Filter.java

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import org.matsim.api.core.v01.Id;
import org.matsim.api.core.v01.TransportMode;
import org.matsim.api.core.v01.population.Leg;
import org.matsim.api.core.v01.population.Person;
import org.matsim.api.core.v01.population.Population;
import org.matsim.core.population.PopulationUtils;

import java.util.List;

public class Filter {
    public static void main(String[] args) {
        Population population = PopulationUtils.readPopulation("/Users/paulh/Nextcloud/Shared/RustQSim-Data/scenarios/rvr/input/rvr-matsim-10pct/rvr-v1.4-10pct.plans.xml.gz");

        List<? extends Id> list = population.getPersons().values().stream()
            .filter(p -> {
                var mode = TransportMode.ride;
                return !p.getSelectedPlan().getPlanElements().stream()
                    .filter(e -> e instanceof Leg)
                    .map(e -> (Leg) e)
                    .anyMatch(l -> l.getRoutingMode().contains(mode) || l.getMode().contains(mode));
            }).map(p -> p.getId()).toList();

        for (Id id : list) {
            population.removePerson(id);
        }

        System.out.println("Pop size: " + population.getPersons().size());

        PopulationUtils.writePopulation(population, "/Users/paulh/Nextcloud/rust-qsim/rvr-1.4/input/rvr-v1.4-10pct.filtered-plans.xml.gz");

    }
}