public void execute()

in core/src/main/java/org/apache/ftpserver/command/impl/MFMT.java [52:163]
87 lines of code
10 McCabe index (conditional complexity)

    public void execute(final FtpIoSession session,
            final FtpServerContext context, final FtpRequest request)
            throws IOException {

        
        // reset state variables
        session.resetState();

        String argument = request.getArgument();

        if (argument == null || argument.trim().length() == 0) {
            session
                    .write(LocalizedFtpReply
                            .translate(
                                    session,
                                    request,
                                    context,
                                    FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                                    "MFMT.invalid", null));
            return;
        }
        
        String[] arguments = argument.split(" ",2);

        if(arguments.length != 2) {
            session
            .write(LocalizedFtpReply
                    .translate(
                            session,
                            request,
                            context,
                            FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                            "MFMT.invalid", null));
            return;
        }
       
        String timestamp = arguments[0].trim();
       
        try {
            
            Date time = DateUtils.parseFTPDate(timestamp);
            
            String fileName = arguments[1].trim();
            
            // get file object
            FtpFile file = null;
            
            try {
                file = session.getFileSystemView().getFile(fileName);
            } catch (Exception ex) {
                LOG.debug("Exception getting the file object: " + fileName, ex);
            }
            
            if (file == null || !file.doesExist()) {
                session
                .write(LocalizedFtpReply
                        .translate(
                                session,
                                request,
                                context,
                                FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN,
                                "MFMT.filemissing", fileName));
                return;
            }
            
            // check file
            if (!file.isFile()) {
                session
                .write(LocalizedFtpReply
                        .translate(
                                session,
                                request,
                                context,
                                FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                                "MFMT.invalid", null));
                return;
            }

             // check if we can set date and retrieve the actual date stored for the file.
             if (!file.setLastModified(time.getTime())) {
                 // we couldn't set the date, possibly the file was locked
                 session.write(LocalizedFtpReply.translate(session, request, context,
                         FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN, "MFMT",
                         fileName));
                 return;
             }

             // all checks okay, lets go
            session
            .write(LocalizedFtpReply
                    .translate(
                            session,
                            request,
                            context,
                            FtpReply.REPLY_213_FILE_STATUS,
                            "MFMT", "ModifyTime=" + timestamp + "; " + fileName));
            return;

        } catch (ParseException e) {
            session
            .write(LocalizedFtpReply
                    .translate(
                            session,
                            request,
                            context,
                            FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                            "MFMT.invalid", null));
            return;
        }
        

    }