Examples with MessagingException javax.mail.MessagingException used on opensource projects

Example 1 with MessagingException

use of javax.mail.MessagingException in project camel by apache.

the class MailConsumer method retrieveAllMessages.

private Message[] retrieveAllMessages() throws MessagingException {
    int total = folder.getMessageCount();
    List<Message> msgs = new ArrayList<Message>();
    // Note that message * numbers start at 1, not 0
    for (int i = 1; i <= total; i++) {
        try {
            Message msg = folder.getMessage(i);
            msgs.add(msg);
        } catch (Exception e) {
            if (skipFailedMessage) {
                LOG.debug("Skipping failed message at index " + i + " due " + e.getMessage(), e);
            } else if (handleFailedMessage) {
                handleException(e);
            } else {
                throw e;
            }
        }
    }
    return msgs.toArray(new Message[msgs.size()]);
}

Example 2 with MessagingException

use of javax.mail.MessagingException in project camel by apache.

the class MailConsumer method createExchanges.

protected Queue<Exchange> createExchanges(List<KeyValueHolder<String, Message>> messages) throws MessagingException {
    Queue<Exchange> answer = new LinkedList<Exchange>();
    int fetchSize = getEndpoint().getConfiguration().getFetchSize();
    int count = fetchSize == -1 ? messages.size() : Math.min(fetchSize, messages.size());
    if (LOG.isDebugEnabled()) {
        LOG.debug("Fetching {} messages. Total {} messages.", count, messages.size());
    }
    for (int i = 0; i < count; i++) {
        try {
            KeyValueHolder<String, Message> holder = messages.get(i);
            String key = holder.getKey();
            Message message = holder.getValue();
            if (LOG.isTraceEnabled()) {
                LOG.trace("Mail #{} is of type: {} - {}", new Object[] { i, ObjectHelper.classCanonicalName(message), message });
            }
            if (!message.getFlags().contains(Flags.Flag.DELETED)) {
                Exchange exchange = getEndpoint().createExchange(message);
                if (getEndpoint().getConfiguration().isMapMailMessage()) {
                    // ensure the mail message is mapped, which can be ensured by touching the body/header/attachment
                    LOG.trace("Mapping #{} from javax.mail.Message to Camel MailMessage", i);
                    exchange.getIn().getBody();
                    exchange.getIn().getHeaders();
                    exchange.getIn().getAttachments();
                }
                // If the protocol is POP3 we need to remember the uid on the exchange
                // so we can find the mail message again later to be able to delete it
                // we also need to remember the UUID for idempotent repository
                exchange.setProperty(MAIL_MESSAGE_UID, key);
                answer.add(exchange);
            } else {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Skipping message as it was flagged as deleted: {}", MailUtils.dumpMessage(message));
                }
            }
        } catch (Exception e) {
            if (skipFailedMessage) {
                LOG.debug("Skipping failed message at index " + i + " due " + e.getMessage(), e);
            } else if (handleFailedMessage) {
                handleException(e);
            } else {
                throw e;
            }
        }
    }
    return answer;
}

Example 3 with MessagingException

use of javax.mail.MessagingException in project camel by apache.

the class MailConsumer method processCommit.

/**
     * Strategy to flag the message after being processed.
     *
     * @param mail     the mail message
     * @param exchange the exchange
     */
protected void processCommit(Message mail, Exchange exchange) {
    try {
        // ensure folder is open
        if (!folder.isOpen()) {
            folder.open(Folder.READ_WRITE);
        }
        String uid = (String) exchange.removeProperty(MAIL_MESSAGE_UID);
        // Otherwise setting the DELETE/SEEN flag won't delete the message.
        if (getEndpoint().getConfiguration().getProtocol().startsWith("pop3")) {
            int count = folder.getMessageCount();
            Message found = null;
            LOG.trace("Looking for POP3Message with UID {} from folder with {} mails", uid, count);
            for (int i = 1; i <= count; ++i) {
                Message msg = folder.getMessage(i);
                if (uid.equals(getEndpoint().getMailUidGenerator().generateUuid(getEndpoint(), msg))) {
                    LOG.debug("Found POP3Message with UID {} from folder with {} mails", uid, count);
                    found = msg;
                    break;
                }
            }
            if (found == null) {
                boolean delete = getEndpoint().getConfiguration().isDelete();
                LOG.warn("POP3message not found in folder. Message cannot be marked as " + (delete ? "DELETED" : "SEEN"));
            } else {
                mail = found;
            }
        }
        org.apache.camel.Message in = exchange.getIn();
        MailConfiguration config = getEndpoint().getConfiguration();
        // header values override configuration values
        String copyTo = in.getHeader("copyTo", config.getCopyTo(), String.class);
        boolean delete = in.getHeader("delete", config.isDelete(), boolean.class);
        // Copy message into different imap folder if asked
        if (config.getProtocol().equals(MailUtils.PROTOCOL_IMAP) || config.getProtocol().equals(MailUtils.PROTOCOL_IMAPS)) {
            if (copyTo != null) {
                LOG.trace("IMAP message needs to be copied to {}", copyTo);
                Folder destFolder = store.getFolder(copyTo);
                if (!destFolder.exists()) {
                    destFolder.create(Folder.HOLDS_MESSAGES);
                }
                folder.copyMessages(new Message[] { mail }, destFolder);
                LOG.trace("IMAP message {} copied to {}", mail, copyTo);
            }
        }
        if (delete) {
            LOG.trace("Exchange processed, so flagging message as DELETED");
            mail.setFlag(Flags.Flag.DELETED, true);
        } else {
            LOG.trace("Exchange processed, so flagging message as SEEN");
            mail.setFlag(Flags.Flag.SEEN, true);
        }
        // need to confirm or remove on commit at last
        if (getEndpoint().getIdempotentRepository() != null) {
            if (getEndpoint().isIdempotentRepositoryRemoveOnCommit()) {
                getEndpoint().getIdempotentRepository().remove(uid);
            } else {
                getEndpoint().getIdempotentRepository().confirm(uid);
            }
        }
    } catch (MessagingException e) {
        getExceptionHandler().handleException("Error occurred during committing mail message: " + mail, exchange, e);
    }
}

Example 4 with MessagingException

use of javax.mail.MessagingException in project camel by apache.

the class MailConsumer method poll.

protected int poll() throws Exception {
    // must reset for each poll
    shutdownRunningTask = null;
    pendingExchanges = 0;
    int polledMessages = 0;
    ensureIsConnected();
    if (store == null || folder == null) {
        throw new IllegalStateException("MailConsumer did not connect properly to the MailStore: " + getEndpoint().getConfiguration().getMailStoreLogInformation());
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Polling mailbox folder: " + getEndpoint().getConfiguration().getMailStoreLogInformation());
    }
    if (getEndpoint().getConfiguration().getFetchSize() == 0) {
        LOG.warn("Fetch size is 0 meaning the configuration is set to poll no new messages at all. Camel will skip this poll.");
        return 0;
    }
    // ensure folder is open
    if (!folder.isOpen()) {
        folder.open(Folder.READ_WRITE);
    }
    try {
        int count = folder.getMessageCount();
        if (count > 0) {
            List<KeyValueHolder<String, Message>> messages = retrieveMessages();
            // we process the message and rollback due an exception
            if (getEndpoint().getConfiguration().isPeek()) {
                for (KeyValueHolder<String, Message> entry : messages) {
                    Message message = entry.getValue();
                    peekMessage(message);
                }
            }
            polledMessages = processBatch(CastUtils.cast(createExchanges(messages)));
            final MailBoxPostProcessAction postProcessor = getEndpoint().getPostProcessAction();
            if (postProcessor != null) {
                postProcessor.process(folder);
            }
        } else if (count == -1) {
            throw new MessagingException("Folder: " + folder.getFullName() + " is closed");
        }
    } catch (Exception e) {
        handleException(e);
    } finally {
        // need to ensure we release resources, but only if closeFolder or disconnect = true
        if (getEndpoint().getConfiguration().isCloseFolder() || getEndpoint().getConfiguration().isDisconnect()) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Close mailbox folder {} from {}", folder.getName(), getEndpoint().getConfiguration().getMailStoreLogInformation());
            }
            try {
                if (folder.isOpen()) {
                    folder.close(true);
                }
            } catch (Exception e) {
                // some mail servers will lock the folder so we ignore in this case (CAMEL-1263)
                LOG.debug("Could not close mailbox folder: " + folder.getName() + ". This exception is ignored.", e);
            }
        }
    }
    // should we disconnect, the header can override the configuration
    boolean disconnect = getEndpoint().getConfiguration().isDisconnect();
    if (disconnect) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Disconnecting from {}", getEndpoint().getConfiguration().getMailStoreLogInformation());
        }
        try {
            store.close();
        } catch (Exception e) {
            LOG.debug("Could not disconnect from {}: " + getEndpoint().getConfiguration().getMailStoreLogInformation() + ". This exception is ignored.", e);
        }
        store = null;
        folder = null;
    }
    return polledMessages;
}

Example 5 with MessagingException

use of javax.mail.MessagingException in project camel by apache.

the class DefaultMailUidGenerator method generateMessageHash.

public String generateMessageHash(Message message) {
    LOG.trace("generateMessageHash for msg: {}", message);
    String uid = null;
    // create an UID based on message headers on the message, that ought to be unique
    StringBuilder buffer = new StringBuilder();
    try {
        Enumeration<?> it = message.getAllHeaders();
        while (it.hasMoreElements()) {
            Header header = (Header) it.nextElement();
            buffer.append(header.getName()).append("=").append(header.getValue()).append("\n");
        }
        if (buffer.length() > 0) {
            LOG.trace("Generating UID from the following:\n {}", buffer);
            uid = UUID.nameUUIDFromBytes(buffer.toString().getBytes()).toString();
        }
    } catch (MessagingException e) {
        LOG.warn("Cannot read headers from mail message. This exception will be ignored.", e);
    }
    return uid;
}