public FetchMessagesResult fetch()

in server/src/main/java/org/apache/hupa/server/service/FetchMessagesServiceImpl.java [60:105]
35 lines of code
9 McCabe index (conditional complexity)

    public FetchMessagesResult fetch(FetchMessagesAction action) throws HupaException {
        User user = getUser();
        // ImapFolder folder = action.getFolder();
        if (action.getFolder() == null || action.getFolder().getFullName() == null) {
            // folder = new
            // ImapFolderImpl(user.getSettings().getInboxFolderName());
            throw new IllegalArgumentException("why you want to ask us for messages in a null folder");
        }
        com.sun.mail.imap.IMAPFolder f = null;
        int start = action.getStart();
        int offset = action.getOffset();
        try {
            IMAPStore store = cache.get(user);

            f = (com.sun.mail.imap.IMAPFolder) store.getFolder(action.getFolder().getFullName());

            // check if the folder is open, if not open it read only
            if (f.isOpen() == false) {
                f.open(com.sun.mail.imap.IMAPFolder.READ_ONLY);
            }

            // if the folder is empty we have no need to process
            int exists = f.getMessageCount();
            if (exists == 0) {
                return new FetchMessagesResultImpl(new ArrayList<org.apache.hupa.shared.domain.Message>(), start,
                        offset, 0, 0);
            }

            MessageConvertArray convArray = getMessagesToConvert(f, action);
            return new FetchMessagesResultImpl(convert(offset, f, convArray.getMesssages()), start, offset,
                    convArray.getRealCount(), f.getUnreadMessageCount());
        } catch (MessagingException e) {
            logger.info("Error fetching messages in folder: " + action.getFolder().getFullName() + " " + e.getMessage());
            // Folder can not contain messages
            return new FetchMessagesResultImpl(new ArrayList<org.apache.hupa.shared.domain.Message>(), start, offset,
                    0, 0);
        } finally {
            if (f != null && f.isOpen()) {
                try {
                    f.close(false);
                } catch (MessagingException e) {
                    // we don't care to much about an exception on close here...
                }
            }
        }
    }