ICalendarHelper.java

package de.flower.rmt.service.mail;

import de.flower.common.util.IO;
import de.flower.rmt.model.db.entity.Venue;
import de.flower.rmt.model.db.entity.event.Event;
import org.joda.time.DateTime;

import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;

/**
 * @author flowerrrr
 */
public class ICalendarHelper {

    public static final String CHARSET = IO.CharacterEncoding.UTF8.toString();

    /**
     * 'text/calendar' has problems with non-ascii characters when sending mail attachments.
     */
    public static final String CONTENT_TYPE_MAIL = "application/octet-stream";

    public static final String CONTENT_TYPE_HTTP = "text/calendar; charset=" + CHARSET;

    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd'T'HHmmss");

    private Event event;

    public ICalendarHelper(final Event event) {
        this.event = event;
    }

    public String getUid() {
        return event.getId() + ".das-tool.flower.de";
    }

    public String getDtstart() {
        return sdf.format(event.getDateTimeAsDate());
    }

    public String getDtend() {
        DateTime end = event.getDateTimeEnd();
        return sdf.format(end.toDate());
    }

    public String getDtstamp() {
        return sdf.format(new DateTime().toDate());
    }

    public String getSummary() {
        return event.getTeam().getName() + " - " + event.getSummary();
    }

    public String getDescription(final String eventDetails) {
        return sanitize(eventDetails);
    }

    public String getLocation() {
        Venue venue = event.getVenue();
        return venue == null ? "" : venue.getName();
    }

    public String sanitize(String in) {
        // replace newlines with literal \n
        return in.replace("\r", "").replace("\n", "\\n");
    }

    public static byte[] getBytes(final String iCalendar) {
        try {
            return iCalendar.getBytes(CHARSET);
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }
}