private void run()

in runner/src/main/java/org/jclouds/cli/runner/Main.java [216:305]
73 lines of code
8 McCabe index (conditional complexity)

    private void run(final CommandProcessorImpl commandProcessor, ThreadIO threadio, String[] args, final InputStream in, final PrintStream out, final PrintStream err) throws Exception {

        if (args.length > 0) {
            // Commands have the form: jclouds:category-action.
            List<String> commands = Lists.newArrayList(commandProcessor.getCommands());
            Collections.sort(commands);
            if (!commands.contains(args[0])) {
                final String INDENT = "    ";
                StringBuilder sb = new StringBuilder(
                      "Usage: jclouds {category} {action} {options/arguments}");

                // list commands
                sb.append("\n\nValid commands:");
                for (String command : commands) {
                    if (command.startsWith("jclouds:")) {
                        command = command.substring("jclouds:".length());
                        int index = command.indexOf('-');
                        String category = command.substring(0, index);
                        String action = command.substring(index + 1);
                        sb.append('\n').append(INDENT).append(category)
                            .append(' ').append(action);
                        // TODO: expose command descriptions
                    }
                }

                // list options
                sb.append("\n\nOptions:")
                    .append('\n').append(INDENT)
                    .append("--properties: File containing properties")
                    .append('\n').append(INDENT)
                    .append("--provider:   The id of the provider")
                    .append('\n').append(INDENT)
                    .append("--api:        The id of the api")
                    .append('\n').append(INDENT)
                    .append("--endpoint:   The endpoint")
                    .append('\n').append(INDENT)
                    .append("--identity:   The identity")
                    .append('\n').append(INDENT)
                    .append("--credential: The credential");

                throw new CommandNotFoundException(sb.toString());
            }

            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < args.length; i++) {
                if (i > 0) {
                    sb.append(" ");
                }
                if (args[i].contains(" ")) {
                    // quote arguments with spaces
                    sb.append("\"").append(args[i]).append("\"");
                } else {
                    sb.append(args[i]);
                }
            }

            // Shell is directly executing a sub/command, we don't setup a terminal and console
            // in this case, this avoids us reading from stdin un-necessarily.
            CommandSession session = commandProcessor.createSession(in, out, err);
            session.put("USER", user);
            session.put("APPLICATION", application);
            session.put(NameScoping.MULTI_SCOPE_MODE_KEY, Boolean.toString(isMultiScopeMode()));
            session.execute(sb);
        } else {
            // We are going into full blown interactive shell mode.
            final TerminalFactory terminalFactory = new TerminalFactory();
            final Terminal terminal = terminalFactory.getTerminal();
            Console console = createConsole(commandProcessor, threadio, in, out, err, terminal);
            CommandSession session = console.getSession();
            session.put("USER", user);
            session.put("APPLICATION", application);
            session.put(NameScoping.MULTI_SCOPE_MODE_KEY, Boolean.toString(isMultiScopeMode()));
            session.put("#LINES", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getHeight());
                }
            });
            session.put("#COLUMNS", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getWidth());
                }
            });
            session.put(".jline.terminal", terminal);

            console.run();

            terminalFactory.destroy();
        }

    }