[controller] add default timezone to iCalendar

Author: Puckoland

shongo-controller/src/main/java/cz/cesnet/shongo/controller/util/iCalendar.java

@@ -9,6 +9,8 @@
 import net.fortuna.ical4j.model.parameter.Role;
 import net.fortuna.ical4j.model.property.*;
 import org.joda.time.DateTimeZone;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.net.URISyntaxException;
 import java.util.LinkedList;
@@ -23,6 +25,14 @@
  */
 public class iCalendar
 {
+
+    private static final Logger logger = LoggerFactory.getLogger(iCalendar.class);
+
+    /**
+     * Default time zone id.
+     */
+    private static final String DEFAULT_TIME_ZONE_ID = "Europe/Prague";
+
     /**
      * @see net.fortuna.ical4j.model.Calendar
      */
@@ -167,7 +177,8 @@ private VTimeZone getVTimeZone(org.joda.time.DateTimeZone dateTimeZone)
     {
         TimeZone timezone = timeZoneRegistry.getTimeZone(dateTimeZone.getID());
         if (timezone == null) {
-            throw new IllegalArgumentException("Unknown timezone " + dateTimeZone);
+            logger.info("Unknown timezone {}. Using default timezone {}.", dateTimeZone, DEFAULT_TIME_ZONE_ID);
+            timezone = timeZoneRegistry.getTimeZone(DEFAULT_TIME_ZONE_ID);
         }
         return timezone.getVTimeZone();
     }

shongo-controller/src/test/java/cz/cesnet/shongo/controller/util/iCalendarTest.java

@@ -58,6 +58,20 @@ public void testCancel() throws Exception
         finish("delete", calendar);
     }
 
+    @Test
+    public void testUnknownTimezone() throws Exception
+    {
+        iCalendar calendar = new iCalendar();
+        calendar.setMethod(iCalendar.Method.CREATE);
+        iCalendar.Event event = calendar.addEvent(DOMAIN, EVENT_ID, "Testing meeting 3");
+        event.setOrganizer(ORGANIZER);
+        event.setSequence(0);
+        event.setDescription("description");
+        event.setInterval(Interval.parse("2014-02-11T17:30/2014-02-11T18:30"), DateTimeZone.forID("CET"));
+        event.addAttendee("Martin Srom", ATTENDEE);
+        finish("create", calendar);
+    }
+
     private void finish(String subject, iCalendar calendar) throws Exception
     {
         System.out.println(calendar);