src/main/java/com/it_jaros/networkScanner/App.java


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package com.it_jaros.networkScanner;

import java.util.List;

public class App {
    public static void main(String[] args) {
        CliParser cliParser = new CliParser();
        try {
            ScanOptions options = cliParser.parseArgs(args);
            Scanner scanner = new Scanner(options.openSocketLimit(), options.timeoutInMillis());
            List<ScanResult> openPorts = scanner.scanPorts(options);
            printResults(openPorts);
        } catch (IllegalArgumentException e) {
            System.out.println(e.getMessage());
            cliParser.usageAndExit();
        } catch (Exception e) {
            System.err.println("Something went wrong");
        }
    }

    public static void printResults(List<ScanResult> results) {
        results.forEach(r -> printResult(r));
    }

    private static void printResult(ScanResult result) {
        System.out.println("Target: " + result.target());
        System.out.print("Ports:");
        result.openPorts().forEach((p) -> System.out.print(" " + p));
        System.out.print("\n");
    }
}