SpringBoot CommandLineRunner

AnalyzerCommand.java

package com.amertkara.springframework.multiplerunners.subcommands.analyzer;

import org.apache.commons.cli.*;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;

@Component
public class AnalyzerCommand implements CommandLineRunner {

    private Options options;
    private CommandLineParser parser;
    private CommandLine cmd;
    private HelpFormatter formatter;

    /**
     * Initiates the sub-command
     */
    @PostConstruct
    public void init () {
        options = new Options();
        parser = new DefaultParser();
        formatter = new HelpFormatter();

        final Option fileOption = Option.builder("f")
                .argName("file")
                .hasArg()
                .desc("File to be analyzed")
                .build();

        options.addOption(fileOption);
    }

    @Override
    public void run(String... args) throws Exception {
        if ("analyze".equals(args[0])) {
            try {
                cmd = parser.parse(options, args);
            } catch (UnrecognizedOptionException | MissingArgumentException  e) {
                formatter.printHelp("sample", options);
                System.exit(1);
            }

            if (cmd.hasOption("f") && !cmd.getOptionValue("f").isEmpty()) {
                System.out.println("AnalyzerCommand is running on the file: " + cmd.getOptionValue("f"));
                // Call the analyzer core
            }
        }
    }
}

ApplicationStructure.txt

- Application
\-- Sub-command 1 (Runner1)
\-- Sub-command 2 (Runner2)
\-- ...
\-- Sub-command N (Runnern)

Runner1.java

import org.springframework.boot.CommandLineRunner;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

@Component
@Order(value = Ordered.LOWEST_PRECEDENCE)
public class Runner1 implements CommandLineRunner {

    @Override
    public void run(String... args) throws Exception {
        System.out.println("Runner1 is running");
    }
}