org.opentripplanner.routing.core.ServiceDay Maven / Gradle / Ivy

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The OpenTripPlanner multimodal journey planning system
There is a newer version: 2.5.0
package org.opentripplanner.routing.core;

import org.opentripplanner.model.FeedScopedId;
import org.opentripplanner.model.calendar.CalendarService;
import org.opentripplanner.model.calendar.ServiceDate;

import java.io.Serializable;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Date;
import java.util.Map;
import java.util.TimeZone;

/**
 * Represents a day of transit services. 
 * Intended for quickly checking whether a service is running during path searches.
 * 
 * @author andrewbyrd
 *
 */
public class ServiceDay implements Serializable {
    private static final long serialVersionUID = -1206371243806996680L;

    protected long midnight;
    protected ServiceDate serviceDate;
    protected BitSet serviceIdsRunning;

    public ServiceDay(Map serviceCodes, ServiceDate serviceDate, CalendarService cs, FeedScopedId agencyId) {
        TimeZone timeZone = cs.getTimeZoneForAgencyId(agencyId);
        this.serviceDate = serviceDate;

        init(serviceCodes, cs, timeZone);
    }

    private void init(Map serviceCodes, CalendarService cs, TimeZone timeZone) {
        Date d = serviceDate.getAsDate(timeZone);
        this.midnight = d.getTime() / 1000;
        serviceIdsRunning = new BitSet(cs.getServiceIds().size());
        
        for (FeedScopedId serviceId : cs.getServiceIdsOnDate(serviceDate)) {
            int n = serviceCodes.get(serviceId);
            if (n < 0)
                continue;
            serviceIdsRunning.set(n);
        }
    }

    /** Does the given serviceId run on this ServiceDay? */
    public boolean serviceRunning(int serviceCode) {
        return this.serviceIdsRunning.get(serviceCode);
    }

    /** Do any of the services for this set of service codes run on this ServiceDay? */
    public boolean anyServiceRunning(BitSet serviceCodes) {
        return this.serviceIdsRunning.intersects(serviceCodes);
    }

    /**
     * Return the ServiceDate for this ServiceDay.
     */
    public ServiceDate getServiceDate() {
        return serviceDate;
    }
    
    /* 
     * Return number of seconds after midnight on this ServiceDay
     * for the given time.
     * 
     * Note that the parameter and the return value are in seconds since the epoch
     * 
     * Return value may be negative, indicating that the time is 
     * before this ServiceDay.
     */
    public int secondsSinceMidnight(long time) {
        return (int) (time - this.midnight);
    }
    
    /* 
     * Return number of seconds since the epoch
     * based on the given number of seconds after midnight on this ServiceDay
     * 
     * Input value may be negative, indicating that the time is 
     * before this ServiceDay.
     */
    public long time(int secondsSinceMidnight) {
        return this.midnight + secondsSinceMidnight;
    }
    
    public String toString() {
        return Long.toString(this.midnight) + Arrays.asList(serviceIdsRunning);
    }
    
    public boolean equals(Object o) {
        if (!(o instanceof ServiceDay)) return false;
        ServiceDay other = (ServiceDay) o;
        return other.midnight == midnight;
    }
    
    @Override
    public int hashCode() {
        return (int) midnight;
    }
    
}