Examples with Action org.apache.karaf.shell.api.action.Action used on opensource projects

Example 1 with Action

use of org.apache.karaf.shell.api.action.Action in project karaf by apache.

the class GenerateHelpMojo method execute.

public void execute() throws MojoExecutionException, MojoFailureException {
    try {
        if (!FORMAT_DOCBX.equals(format) && !FORMAT_CONF.equals(format) && !FORMAT_ASCIIDOC.equals(format)) {
            throw new MojoFailureException("Unsupported format: " + format + ". Supported formats are: asciidoc, docbx, or conf.");
        }
        if (!targetFolder.exists()) {
            targetFolder.mkdirs();
        }
        ClassFinder finder = createFinder(classLoader);
        List<Class<?>> classes = finder.findAnnotatedClasses(Command.class);
        if (classes.isEmpty()) {
            throw new MojoFailureException("No command found");
        }
        CommandHelpPrinter helpPrinter = null;
        if (FORMAT_ASCIIDOC.equals(format)) {
            helpPrinter = new AsciiDoctorCommandHelpPrinter();
        }
        if (FORMAT_CONF.equals(format)) {
            helpPrinter = new UserConfCommandHelpPrinter();
        }
        if (FORMAT_DOCBX.equals(format)) {
            helpPrinter = new DocBookCommandHelpPrinter();
        }
        Map<String, Set<String>> commands = new TreeMap<>();
        String commandSuffix = null;
        if (FORMAT_ASCIIDOC.equals(format)) {
            commandSuffix = "adoc";
        }
        if (FORMAT_CONF.equals(format)) {
            commandSuffix = "conf";
        }
        if (FORMAT_DOCBX.equals(format)) {
            commandSuffix = "xml";
        }
        for (Class<?> clazz : classes) {
            try {
                Action action = (Action) clazz.newInstance();
                Command cmd = clazz.getAnnotation(Command.class);
                // skip the *-help command
                if (cmd.scope().equals("*"))
                    continue;
                File output = new File(targetFolder, cmd.scope() + "-" + cmd.name() + "." + commandSuffix);
                FileOutputStream outStream = new FileOutputStream(output);
                PrintStream out = new PrintStream(outStream);
                helpPrinter.printHelp(action, out, includeHelpOption);
                out.close();
                outStream.close();
                commands.computeIfAbsent(cmd.scope(), k -> new TreeSet<>()).add(cmd.name());
                getLog().info("Found command: " + cmd.scope() + ":" + cmd.name());
            } catch (Exception e) {
                getLog().warn("Unable to write help for " + clazz.getName(), e);
            }
        }
        String overViewSuffix = null;
        if (FORMAT_ASCIIDOC.equals(format)) {
            overViewSuffix = "adoc";
        }
        if (FORMAT_CONF.equals(format)) {
            overViewSuffix = "conf";
        }
        if (FORMAT_DOCBX.equals(format)) {
            overViewSuffix = "xml";
        }
        PrintStream writer = new PrintStream(new FileOutputStream(new File(targetFolder, "commands." + overViewSuffix)));
        helpPrinter.printOverview(commands, writer);
        writer.close();
    } catch (Exception e) {
        throw new MojoExecutionException("Error building commands help", e);
    }
}