From 46bf5d3df637a485c52e8fcd8374c10b4fb585b3 Mon Sep 17 00:00:00 2001
From: Matthias Jaros <jarlucmat@mailbox.org>
Date: Mon, 26 Jan 2026 18:28:17 +0100
Subject: Added progress bar :-)

---
 .../java/com/it_jaros/networkScanner/Scanner.java    | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

(limited to 'src/main/java/com/it_jaros/networkScanner/Scanner.java')

diff --git a/src/main/java/com/it_jaros/networkScanner/Scanner.java b/src/main/java/com/it_jaros/networkScanner/Scanner.java
index eb3af29..fae1890 100644
--- a/src/main/java/com/it_jaros/networkScanner/Scanner.java
+++ b/src/main/java/com/it_jaros/networkScanner/Scanner.java
@@ -13,12 +13,14 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.concurrent.locks.LockSupport;
 
 public class Scanner {
                 
     private final Counter counter = new Counter();
+    private final ProgressBar progressBar = new ProgressBar();
     private final Semaphore socketCap;
     private final int timeoutInMillis;
     
@@ -38,22 +40,32 @@ public class Scanner {
     public List<ScanResult> scanPorts(List<String> targets, int delayInMillis) {
         List<ScanResult> results = new ArrayList<>();
         long delayInNanos = TimeUnit.MILLISECONDS.toNanos(Math.max(0, delayInMillis));
-        try (ExecutorService executor = Executors.newVirtualThreadPerTaskExecutor()) {
+        try (ExecutorService executor = Executors.newVirtualThreadPerTaskExecutor();) {
+            List<Progress> hosts = new ArrayList<>();
             for (String target : targets) {
-                results.add(scanTargetAsync(target, delayInNanos, executor));
+                Progress progress = new Progress(target, 65535, new AtomicInteger(), new AtomicInteger());
+                hosts.add(progress);
+                results.add(scanTargetAsync(target, delayInNanos, executor, progress));
             }
+            progressBar.start(hosts);
         }
+
+        progressBar.stop();
         System.out.println("Peak concurrent connects: " + counter.max());
         return results;
     }
 
-    private ScanResult scanTargetAsync(String target, long delayInNanos, ExecutorService executor) { 
+    private ScanResult scanTargetAsync(String target, long delayInNanos, ExecutorService executor, Progress p) {
         AtomicLong nextStartNanos = new AtomicLong(System.nanoTime());
         Queue<Integer> openPorts = new ConcurrentLinkedQueue<>();
         for (int port = 1; port < 65536; port++) {
             final int currentPort = port;
             executor.submit(() -> {
-                scanPortsAsync(target, delayInNanos, nextStartNanos, openPorts, currentPort);
+                try {
+                    scanPortsAsync(target, delayInNanos, nextStartNanos, openPorts, currentPort);
+                } finally {
+                    progressBar.onPortFinished(p);
+                }
             });
         }
         return new ScanResult(target, openPorts);
-- 
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