public void execute()

in core/src/main/java/org/apache/ftpserver/command/impl/DELE.java [53:121]
51 lines of code
7 McCabe index (conditional complexity)

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

        // reset state variables
        session.resetState();

        // argument check
        String fileName = request.getArgument();
        if (fileName == null) {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_501_SYNTAX_ERROR_IN_PARAMETERS_OR_ARGUMENTS,
                    "DELE", null, null));
            return;
        }

        // get file object
        FtpFile file = null;

        try {
            file = session.getFileSystemView().getFile(fileName);
        } catch (Exception ex) {
            LOG.debug("Could not get file " + fileName, ex);
        }
        if (file == null) {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN,
                    "DELE.invalid", fileName, null));
            return;
        }
        
        // check file
        fileName = file.getAbsolutePath();

        if (file.isDirectory()) {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_550_REQUESTED_ACTION_NOT_TAKEN,
                    "DELE.invalid", fileName, file));
            return;
        }
        
        if (!file.isRemovable()) {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN,
                    "DELE.permission", fileName, file));
            return;
        }

        // now delete
        if (file.delete()) {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_250_REQUESTED_FILE_ACTION_OKAY, "DELE",
                    fileName, file));

            // log message
            String userName = session.getUser().getName();

            LOG.info("File delete : " + userName + " - " + fileName);

            // notify statistics object
            ServerFtpStatistics ftpStat = (ServerFtpStatistics) context
                    .getFtpStatistics();
            ftpStat.setDelete(session, file);
        } else {
            session.write(LocalizedFileActionFtpReply.translate(session, request, context,
                    FtpReply.REPLY_450_REQUESTED_FILE_ACTION_NOT_TAKEN, "DELE",
                    fileName, file));
        }
    }