public Flags readFlagList()

in geronimo-mail_2.1_impl/geronimo-mail_2.1_provider/src/main/java/org/apache/geronimo/mail/store/imap/connection/IMAPResponseTokenizer.java [1354:1421]
48 lines of code
12 McCabe index (conditional complexity)

    public Flags readFlagList() throws MessagingException {
        Flags flags = new Flags();

        // this should be a list here
        checkLeftParen();

        // run through the flag list
        while (notListEnd()) {
            // the flags are a bit of a pain.  The flag names include "\" in the name, which
            // is not a character allowed in an atom.  This requires a bit of customized parsing
            // to handle this.
            Token token = next();
            // flags can be specified as just atom tokens, so allow this as a user flag.
            if (token.isType(token.ATOM)) {
                // append the atom as a raw name
                flags.add(token.getValue());
            }
            // all of the system flags start with a '\' followed by
            // an atom.  They also can be extension flags.  IMAP has a special
            // case of "\*" that we need to check for.
            else if (token.isType('\\')) {
                token = next();
                // the next token is the real bit we need to process.
                if (token.isType('*')) {
                    // this indicates USER flags are allowed.
                    flags.add(Flags.Flag.USER);
                }
                // if this is an atom name, handle as a system flag
                else if (token.isType(Token.ATOM)) {
                    String name = token.getValue();
                    if (name.equalsIgnoreCase("Seen")) {
                        flags.add(Flags.Flag.SEEN);
                    }
                    else if (name.equalsIgnoreCase("RECENT")) {
                        flags.add(Flags.Flag.RECENT);
                    }
                    else if (name.equalsIgnoreCase("DELETED")) {
                        flags.add(Flags.Flag.DELETED);
                    }
                    else if (name.equalsIgnoreCase("ANSWERED")) {
                        flags.add(Flags.Flag.ANSWERED);
                    }
                    else if (name.equalsIgnoreCase("DRAFT")) {
                        flags.add(Flags.Flag.DRAFT);
                    }
                    else if (name.equalsIgnoreCase("FLAGGED")) {
                        flags.add(Flags.Flag.FLAGGED);
                    }
                    else {
                        // this is a server defined flag....just add the name with the
                        // flag thingy prepended.
                        flags.add("\\" + name);
                    }
                }
                else {
                    throw new MessagingException("Invalid Flag: " + token.getValue());
                }
            }
            else {
                throw new MessagingException("Invalid Flag: " + token.getValue());
            }
        }

        // step over this for good practice.
        checkRightParen();

        return flags;
    }