public void run() {
LOG.trace("ENTER");
running = true;
while (running) {
Email email;
while ((email = outbox.poll()) != null) {
LOG.debug("Got e-mail [" + email + "] from outbox");
try {
LOG.debug(
"Looking for a thread for this e-mail server ["
+ email.getEmailFrom().getAccountServer()
+ "]");
if (serverHandlers.containsKey(email.getEmailFrom())) {
LOG.debug("A Thread for the server already exists!");
if (serverHandlers.get(email.getEmailFrom()).isAlive()) {
LOG.debug("And it is alive! Adding this e-mail to the thread outbox.");
serverHandlers.get(email.getEmailFrom()).sendEmail(email);
} else {
LOG.debug(
"And it is dead! Creating a new thread for server ["
+ email.getEmailFrom().getAccountServer()
+ "]...");
EmailSender sender = new EmailSender(email.getEmailFrom(), this);
sender.sendEmail(email);
sender.start();
serverHandlers.put(email.getEmailFrom(), sender);
}
} else {
LOG.debug(
"No thread found! Creating a new thread for server ["
+ email.getEmailFrom().getAccountServer()
+ "]...");
EmailSender sender = new EmailSender(email.getEmailFrom(), this);
sender.sendEmail(email);
sender.start();
serverHandlers.put(email.getEmailFrom(), sender);
}
} catch (Exception e) {
// This exception may happens because the account was deleted.
LOG.debug("Error retrieving account details", e);
}
}
Utils.sleep_ignoreInterrupts(5000);
}
LOG.trace("EXIT");
}
/**
* EmailServerHandler should be run as a separate thread.
*
* <p>It handles the email accounts available to send emails from.
*
* @author Carlos Eduardo Genz
* <li>kadu(at)masabi(dot)com
*/
public class EmailServerHandler extends Thread implements EmailListener {
/** List of emails queued to be sent. */
private final ConcurrentLinkedQueue<Email> outbox = new ConcurrentLinkedQueue<Email>();
/** List of servers handlers that this manager is currently looking after. */
private final Map<EmailAccount, EmailSender> serverHandlers =
new ConcurrentHashMap<EmailAccount, EmailSender>();
/** Listener to be passed Email Listener events from this */
private EmailListener emailListener;
/** Flag indicating that the thread should continue running. */
private boolean running;
private static Logger LOG = Utils.getLogger(EmailServerHandler.class);
public EmailServerHandler() {
super("EmailServerHandler");
}
public void setEmailListener(EmailListener emailListener) {
this.emailListener = emailListener;
}
public void run() {
LOG.trace("ENTER");
running = true;
while (running) {
Email email;
while ((email = outbox.poll()) != null) {
LOG.debug("Got e-mail [" + email + "] from outbox");
try {
LOG.debug(
"Looking for a thread for this e-mail server ["
+ email.getEmailFrom().getAccountServer()
+ "]");
if (serverHandlers.containsKey(email.getEmailFrom())) {
LOG.debug("A Thread for the server already exists!");
if (serverHandlers.get(email.getEmailFrom()).isAlive()) {
LOG.debug("And it is alive! Adding this e-mail to the thread outbox.");
serverHandlers.get(email.getEmailFrom()).sendEmail(email);
} else {
LOG.debug(
"And it is dead! Creating a new thread for server ["
+ email.getEmailFrom().getAccountServer()
+ "]...");
EmailSender sender = new EmailSender(email.getEmailFrom(), this);
sender.sendEmail(email);
sender.start();
serverHandlers.put(email.getEmailFrom(), sender);
}
} else {
LOG.debug(
"No thread found! Creating a new thread for server ["
+ email.getEmailFrom().getAccountServer()
+ "]...");
EmailSender sender = new EmailSender(email.getEmailFrom(), this);
sender.sendEmail(email);
sender.start();
serverHandlers.put(email.getEmailFrom(), sender);
}
} catch (Exception e) {
// This exception may happens because the account was deleted.
LOG.debug("Error retrieving account details", e);
}
}
Utils.sleep_ignoreInterrupts(5000);
}
LOG.trace("EXIT");
}
public void serverRemoved(EmailAccount account) {
LOG.trace("ENTER");
if (serverHandlers.containsKey(account)) {
LOG.debug("Stopping the account thread [" + account.getAccountName() + "]");
serverHandlers.get(account).stopRunning();
serverHandlers.remove(account);
}
LOG.trace("EXIT");
}
/**
* Remove the supplied email from outbox.
*
* @param deleted
*/
public void removeFromOutbox(Email deleted) {
LOG.trace("ENTER");
outbox.remove(deleted);
LOG.debug("Email [" + deleted + "] removed from outbox. Size is [" + outbox.size() + "]");
LOG.trace("EXIT");
}
/** Send the email. */
public void sendEmail(Email outgoing) {
LOG.trace("ENTER");
outgoing.setStatus(Email.STATUS_OUTBOX);
outbox.add(outgoing);
if (emailListener != null) {
emailListener.outgoingEmailEvent(null, outgoing);
}
LOG.debug("E-mail added to outbox. Size is [" + outbox.size() + "]");
LOG.trace("EXIT");
}
/** Flags the internal thread to stop running. */
public void stopRunning() {
this.running = false;
for (EmailAccount acc : serverHandlers.keySet()) {
serverHandlers.get(acc).stopRunning();
}
}
public void outgoingEmailEvent(EmailSender sender, Email email) {
if (emailListener != null) {
emailListener.outgoingEmailEvent(sender, email);
}
}
}