/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License") + you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openmeetings.util.mail;
import static org.apache.openmeetings.util.OpenmeetingsVariables.webAppRootKey;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.net.URI;
import java.util.Date;
import java.util.HashMap;
import java.util.Vector;
import net.fortuna.ical4j.data.CalendarOutputter;
import net.fortuna.ical4j.model.DateTime;
import net.fortuna.ical4j.model.TimeZone;
import net.fortuna.ical4j.model.TimeZoneRegistry;
import net.fortuna.ical4j.model.TimeZoneRegistryFactory;
import net.fortuna.ical4j.model.component.VEvent;
import net.fortuna.ical4j.model.parameter.Cn;
import net.fortuna.ical4j.model.parameter.Role;
import net.fortuna.ical4j.model.property.Attendee;
import net.fortuna.ical4j.model.property.CalScale;
import net.fortuna.ical4j.model.property.Description;
import net.fortuna.ical4j.model.property.Location;
import net.fortuna.ical4j.model.property.Method;
import net.fortuna.ical4j.model.property.Organizer;
import net.fortuna.ical4j.model.property.ProdId;
import net.fortuna.ical4j.model.property.Sequence;
import net.fortuna.ical4j.model.property.Transp;
import net.fortuna.ical4j.model.property.Uid;
import net.fortuna.ical4j.model.property.Version;
import net.fortuna.ical4j.util.UidGenerator;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
/**
*
* @author o.becherer, seba.wagner
*
*/
public class IcalHandler {
private static final Logger log = Red5LoggerFactory.getLogger(IcalHandler.class, webAppRootKey);
/** ICal instance */
private final net.fortuna.ical4j.model.Calendar icsCalendar;
/** TimeZone */
// private TimeZone timeZone;
// private TimeZoneRegistry timeRegistry;
/** Creation of a new Event */
public final static Method ICAL_METHOD_REQUEST = Method.REQUEST;
public final static Method ICAL_METHOD_CANCEL = Method.CANCEL;
public final static Method ICAL_METHOD_REFRESH = Method.REFRESH;
/**
* Constructor with DefaultTimeZone
*
* @param method
* (@see IcalHandler Constants)
* @throws Exception
*/
public IcalHandler(Method method) {
log.debug("Icalhandler method type : " + method);
System.setProperty("net.fortuna.ical4j.timezone.update.enabled", "false");
icsCalendar = new net.fortuna.ical4j.model.Calendar();
icsCalendar.getProperties().add(new ProdId("-//Events Calendar//iCal4j 1.0//EN"));
icsCalendar.getProperties().add(Version.VERSION_2_0);
icsCalendar.getProperties().add(CalScale.GREGORIAN);
icsCalendar.getProperties().add(method);
}
/**
*
* @param startDate
* use standard TimeZone!!
* @param endDate
* use standard time zone!!
* @param name
* meeting name
* @param attendees
* List of attendees (use getAttendeeData to retrieve valid
* records)
* @param description
* containing the meeting description
* @param uid
* (maybe null)
* @return UID of Meeting
*/
// ---------------------------------------------------------------------------------------
public String addNewMeeting(Date startDate,
Date endDate, String name,
Vector<HashMap<String, String>> attendees, String description,
HashMap<String, String> organizer, String uid, java.util.TimeZone normalTimeZone)
throws Exception {
TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry();
TimeZone timeZone = registry.getTimeZone(normalTimeZone.getID());
DateTime start = new DateTime(startDate);
start.setTimeZone(timeZone);
DateTime end = new DateTime(endDate);
end.setTimeZone(timeZone);
VEvent meeting = new VEvent(start, end, name);
meeting.getProperties().add(new Description(description));
meeting.getProperties().add(new Sequence(0));
meeting.getProperties().add(new Location(""));
meeting.getProperties().add(Transp.OPAQUE);
// generate unique identifier (if not submitted)
Uid ui = null;
if (uid == null || uid.length() < 1) {
ui = new UidGenerator("uidGen").generateUid();
log.debug("Generating Meeting UID : " + ui.getValue());
} else {
ui = new Uid(uid);
log.debug("Using Meeting UID : " + ui.getValue());
}
meeting.getProperties().add(ui);
for (int i = 0; i < attendees.size(); i++) {
HashMap<String, String> oneAtt = attendees.get(i);
Attendee uno = new Attendee(URI.create(oneAtt.get("uri")));
String chair = oneAtt.get("chair");
if (chair.equals("0"))
uno.getParameters().add(Role.REQ_PARTICIPANT);
else
uno.getParameters().add(Role.CHAIR);
uno.getParameters().add(new Cn(oneAtt.get("cn")));
meeting.getProperties().add(uno);
}
Organizer orger = new Organizer(URI.create(organizer.get("uri")));
orger.getParameters().add(new Cn(organizer.get("cn")));
meeting.getProperties().add(orger);
icsCalendar.getComponents().add(timeZone.getVTimeZone());
icsCalendar.getComponents().add(meeting);
return ui.getValue();
}
// ---------------------------------------------------------------------------------------
/**
* Use this function to build a valid record for the AttendeeList for
* addMeetings Generate a Attendee
*/
// ------------------------------------------------------------------------------------------
public HashMap<String, String> getAttendeeData(String emailAdress,
String displayName, Boolean chair) {
HashMap<String, String> oneRecord = new HashMap<String, String>();
oneRecord.put("uri", "mailto:" + emailAdress);
oneRecord.put("cn", displayName);
oneRecord.put("chair", chair ? "1" : "0");
return oneRecord;
}
// ------------------------------------------------------------------------------------------
/**
* Write iCal to File
*/
// ------------------------------------------------------------------------------------------
public void writeDataToFile(String filerPath) throws Exception {
if (!filerPath.endsWith(".ics")) {
filerPath = filerPath + ".ics";
}
FileOutputStream fout = new FileOutputStream(filerPath);
CalendarOutputter outputter = new CalendarOutputter();
outputter.output(icsCalendar, fout);
fout.close();
}
// ------------------------------------------------------------------------------------------
/**
* Get IcalBody as ByteArray
*/
// ------------------------------------------------------------------------------------------
public byte[] getIcalAsByteArray() throws Exception {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
CalendarOutputter outputter = new CalendarOutputter();
outputter.output(icsCalendar, bout);
return bout.toByteArray();
}
// ------------------------------------------------------------------------------------------
/**
* Retrieving Data as String
*/
// ------------------------------------------------------------------------------------------
public String getICalDataAsString() {
return icsCalendar.toString();
}
// ------------------------------------------------------------------------------------------
}