Example usage for org.apache.commons.net.imap IMAPClient store

Introduction

In this page you can find the example usage for org.apache.commons.net.imap IMAPClient store.

Prototype

public boolean store(String sequenceSet, String itemNames, String itemValues) throws IOException 

Source Link

Document

Send a STORE command to the server.

Usage

From source file:com.google.gerrit.server.mail.receive.ImapMailReceiver.java

/**
 * handleEmails will open a connection to the mail server, remove emails where deletion is
 * pending, read new email and close the connection.
 *
 * @param async Determines if processing messages should happen asynchronous.
 *///from  w  w w .  ja  v a  2 s  .  co m
@Override
public synchronized void handleEmails(boolean async) {
    IMAPClient imap;
    if (mailSettings.encryption != Encryption.NONE) {
        imap = new IMAPSClient(mailSettings.encryption.name(), false);
    } else {
        imap = new IMAPClient();
    }
    if (mailSettings.port > 0) {
        imap.setDefaultPort(mailSettings.port);
    }
    // Set a 30s timeout for each operation
    imap.setDefaultTimeout(30 * 1000);
    try {
        imap.connect(mailSettings.host);
        try {
            if (!imap.login(mailSettings.username, mailSettings.password)) {
                log.error("Could not login to IMAP server");
                return;
            }
            try {
                if (!imap.select(INBOX_FOLDER)) {
                    log.error("Could not select IMAP folder " + INBOX_FOLDER);
                    return;
                }
                // Fetch just the internal dates first to know how many messages we
                // should fetch.
                if (!imap.fetch("1:*", "(INTERNALDATE)")) {
                    log.error("IMAP fetch failed. Will retry in next fetch cycle.");
                    return;
                }
                // Format of reply is one line per email and one line to indicate
                // that the fetch was successful.
                // Example:
                // * 1 FETCH (INTERNALDATE "Mon, 24 Oct 2016 16:53:22 +0200 (CEST)")
                // * 2 FETCH (INTERNALDATE "Mon, 24 Oct 2016 16:53:22 +0200 (CEST)")
                // AAAC OK FETCH completed.
                int numMessages = imap.getReplyStrings().length - 1;
                log.info("Fetched " + numMessages + " messages via IMAP");
                if (numMessages == 0) {
                    return;
                }
                // Fetch the full version of all emails
                List<MailMessage> mailMessages = new ArrayList<>(numMessages);
                for (int i = 1; i <= numMessages; i++) {
                    if (imap.fetch(i + ":" + i, "(BODY.PEEK[])")) {
                        // Obtain full reply
                        String[] rawMessage = imap.getReplyStrings();
                        if (rawMessage.length < 2) {
                            continue;
                        }
                        // First and last line are IMAP status codes. We have already
                        // checked, that the fetch returned true (OK), so we safely ignore
                        // those two lines.
                        StringBuilder b = new StringBuilder(2 * (rawMessage.length - 2));
                        for (int j = 1; j < rawMessage.length - 1; j++) {
                            if (j > 1) {
                                b.append("\n");
                            }
                            b.append(rawMessage[j]);
                        }
                        try {
                            MailMessage mailMessage = RawMailParser.parse(b.toString());
                            if (pendingDeletion.contains(mailMessage.id())) {
                                // Mark message as deleted
                                if (imap.store(i + ":" + i, "+FLAGS", "(\\Deleted)")) {
                                    pendingDeletion.remove(mailMessage.id());
                                } else {
                                    log.error("Could not mark mail message as deleted: " + mailMessage.id());
                                }
                            } else {
                                mailMessages.add(mailMessage);
                            }
                        } catch (MailParsingException e) {
                            log.error("Exception while parsing email after IMAP fetch", e);
                        }
                    } else {
                        log.error("IMAP fetch failed. Will retry in next fetch cycle.");
                    }
                }
                // Permanently delete emails marked for deletion
                if (!imap.expunge()) {
                    log.error("Could not expunge IMAP emails");
                }
                dispatchMailProcessor(mailMessages, async);
            } finally {
                imap.logout();
            }
        } finally {
            imap.disconnect();
        }
    } catch (IOException e) {
        log.error("Error while talking to IMAP server", e);
        return;
    }
}

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