/**
* Copyright 2010 JBoss Inc
*
* Licensed 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.drools.task.service;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import java.util.TimeZone;
import java.util.UUID;
import javax.activation.DataHandler;
import javax.activation.MailcapCommandMap;
import javax.activation.MimetypesFileTypeMap;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.util.ByteArrayDataSource;
import org.drools.task.Deadline;
import org.drools.task.I18NText;
import org.drools.task.Task;
import org.drools.task.TaskData;
import org.drools.task.User;
import org.drools.task.UserInfo;
import org.drools.util.ChainedProperties;
import org.drools.util.ClassLoaderUtil;
//import net.fortuna.ical4j.model.Calendar;
//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.component.VTimeZone;
//import net.fortuna.ical4j.model.component.VToDo;
//import net.fortuna.ical4j.model.property.CalScale;
//import net.fortuna.ical4j.model.property.Description;
//import net.fortuna.ical4j.model.property.Method;
//import net.fortuna.ical4j.model.property.Priority;
//import net.fortuna.ical4j.model.property.ProdId;
//import net.fortuna.ical4j.model.property.Uid;
//import net.fortuna.ical4j.model.property.Version;
public class SendIcal {
private static SimpleDateFormat df = new SimpleDateFormat( "yyyyMMdd'T'HHmmss'Z'" );
static {
df.setTimeZone( TimeZone.getTimeZone( "UTC" ) );
}
private Properties connection;
private String defaultLanguage;
private static SendIcal instance;
public static void initInstance(Properties properties) {
if ( instance == null ) {
instance = new SendIcal( properties );
}
}
public static SendIcal getInstance() {
if ( instance == null ) {
instance = new SendIcal();
}
return instance;
}
SendIcal() {
ChainedProperties conf = new ChainedProperties( "drools.email.conf",ClassLoaderUtil.getClassLoader( null, getClass(), false ) );
String host = conf.getProperty( "mail.smtp.host",
"localhost" );
String port = conf.getProperty( "mail.smtp.port",
"25" );
connection = new Properties();
connection.setProperty( "mail.transport.protocol",
"smtp" );
if ( host != null && host.trim().length() > 0 ) {
connection.setProperty( "mail.smtp.host",
host );
}
if ( port != null && port.trim().length() > 0 ) {
connection.setProperty( "mail.smtp.port",
port );
}
defaultLanguage = conf.getProperty( "defaultLanguage",
"en-UK" );
}
SendIcal(Properties conf) {
String host = conf.getProperty( "mail.smtp.host",
"localhost" );
String port = conf.getProperty( "mail.smtp.port",
"25" );
connection = new Properties();
connection.setProperty( "mail.transport.protocol",
"smtp" );
if ( host != null && host.trim().length() > 0 ) {
connection.setProperty( "mail.smtp.host",
host );
}
if ( port != null && port.trim().length() > 0 ) {
connection.setProperty( "mail.smtp.port",
port );
}
defaultLanguage = conf.getProperty( "defaultLanguage",
"en-UK" );
}
public void sendIcalForTask(Task task,
UserInfo userInfo) {
if (userInfo == null) {
return;
}
TaskData data = task.getTaskData();
User owner = data.getActualOwner();
User creator = data.getCreatedBy();
Date createdOn = data.getCreatedOn();
if ( task.getDeadlines() == null ) {
return;
}
// get earliest start deadline
List<Deadline> startDeadlines = task.getDeadlines().getStartDeadlines();
Deadline start = null;
for ( Deadline deadline : startDeadlines ) {
if ( start == null || start.getDate().getTime() > deadline.getDate().getTime() ) {
start = deadline;
}
}
// get latest end deadline
List<Deadline> endDeadlines = task.getDeadlines().getEndDeadlines();
Deadline end = null;
for ( Deadline deadline : endDeadlines ) {
if ( end == null || end.getDate().getTime() < deadline.getDate().getTime() ) {
end = deadline;
}
}
String language = userInfo.getLanguageForEntity( owner );
String name = I18NText.getLocalText( task.getNames(),
language,
defaultLanguage );
String summary = I18NText.getLocalText( task.getSubjects(),
language,
defaultLanguage );
String description = I18NText.getLocalText( task.getDescriptions(),
language,
defaultLanguage );
// send ical for start
if ( start != null ) {
try {
sendIcal( task.getId(),
name,
summary,
description,
task.getPriority(),
start.getDate(),
owner,
creator,
createdOn,
userInfo,
"Start" );
} catch ( Exception e ) {
}
}
// send ical for end
if ( end != null ) {
try {
sendIcal( task.getId(),
name,
summary,
description,
task.getPriority(),
end.getDate(),
owner,
creator,
createdOn,
userInfo,
"End" );
} catch ( Exception e ) {
}
}
}
public void sendIcal(long taskId,
String name,
String summary,
String description,
int priority,
Date startDate,
User owner,
User creator,
Date createdOn,
UserInfo userInfo,
String type) throws Exception {
MimetypesFileTypeMap mimetypes = (MimetypesFileTypeMap) MimetypesFileTypeMap.getDefaultFileTypeMap();
mimetypes.addMimeTypes( "text/calendar ics ICS" );
MailcapCommandMap mailcap = (MailcapCommandMap) MailcapCommandMap.getDefaultCommandMap();
mailcap.addMailcap( "text/calendar;; x-java-content-handler=com.sun.mail.handlers.text_plain" );
System.out.println( connection );
Session session = Session.getInstance( connection,
null );
// Define message
MimeMessage message = new MimeMessage( session );
message.setHeader( "Content-Class",
"urn:content-classes:calendarmessage" );
message.setHeader( "Content-ID",
"calendar_message" );
String creatorEmail = userInfo.getEmailForEntity( creator );
message.setFrom( new InternetAddress( creatorEmail ) );
message.setReplyTo( new InternetAddress[]{new InternetAddress( creatorEmail )} );
message.addRecipient( Message.RecipientType.TO,
new InternetAddress( userInfo.getEmailForEntity( owner ) ) );
message.setSubject( "Task Assignment " + type + " Event: " + name );
message.setSentDate( new Date() );
// Create a Multipart
Multipart multipart = new MimeMultipart( "alternative" );
// Add text message
BodyPart messageBodyPart = new MimeBodyPart();
String text = "Summary\n-------\n\n" + summary + "\n\nDescription\n-----------\n\n" + description;
messageBodyPart.setText( text );
messageBodyPart.setDataHandler( new DataHandler( new ByteArrayDataSource( text,
"text/plain; charset=UTF8;" ) ) );
multipart.addBodyPart( messageBodyPart );
// Add ical
messageBodyPart = new MimeBodyPart();
String filename = "ical-" + type + "-" + taskId + ".ics";
messageBodyPart.setFileName( filename );
messageBodyPart.setHeader( "Content-Class",
"urn:content-classes:calendarmessage" );
messageBodyPart.setHeader( "Content-ID",
"calendar_message" );
String icalStr = getIcal( summary,
description,
startDate,
priority,
userInfo.getDisplayName( creator ),
creatorEmail,
type );
messageBodyPart.setDataHandler( new DataHandler( new ByteArrayDataSource( icalStr,
"text/calendar; charset=UTF8; " ) ) );
multipart.addBodyPart( messageBodyPart );
message.setContent( multipart );
message.saveChanges();
Transport.send( message );
}
private String getIcal(String summary,
String description,
Date date,
int priority,
String organizerDisplayName,
String organizerEmail,
String type) {
StringBuilder builder = new StringBuilder();
builder.append( "BEGIN:VCALENDAR\n" );
builder.append( "PRODID:-//iCal4j 1.0//EN\n" );
builder.append( "CALSCALE:GREGORIAN\n" );
builder.append( "VERSION:2.0\n" );
builder.append( "METHOD:REQUEST\n" );
builder.append( "BEGIN:VEVENT\n" );
builder.append("DTSTART;TZID=UTC:").append(df.format(date)).append("\n");
builder.append("UID:").append(UUID.randomUUID().toString()).append("\n");
builder.append("ORGANIZER;CN=\"").append(organizerDisplayName).append("\":mailto:").append(organizerEmail).append("\n");
builder.append("DTSTAMP;TZID=UTC:").append(df.format(new Date())).append("\n");
builder.append("SUMMARY:\"Task ").append(type).append(" : ").append(summary).append("\"\n");
builder.append("DESCRIPTION:\"").append(description).append("\"\n");
builder.append("PRIORITY:").append(priority).append("\n");
builder.append( "END:VEVENT\n" );
builder.append( "END:VCALENDAR\n" );
return builder.toString();
}
}