Added cli option for worker threads per host

1 files changed, 12 insertions, 6 deletions

diff --git a/src/main/java/com/it_jaros/networkScanner/CliParser.java b/src/main/java/com/it_jaros/networkScanner/CliParser.java
index 3550249..9bb146b 100644
--- a/src/main/java/com/it_jaros/networkScanner/CliParser.java
+++ b/src/main/java/com/it_jaros/networkScanner/CliParser.java
@@ -14,6 +14,7 @@ public class CliParser {
         int socketLimit = 1000;
         int delayInMillis = 0;
         int timeoutInMillis = 1000;
+        int maxWorkersPerHost = 1000;
         String ports = "1-1024";
         for (int i = 0; i < args.length; i++) {
             final String currentArg = args[i];
@@ -26,6 +27,7 @@ public class CliParser {
                 switch (currentArg) {
                     case "--help", "-h":
                         usageAndExit();
+                        break;
                     case "--socketLimit", "-sl":
                         socketLimit = Integer.parseInt(args[++i]);
                         break;
@@ -38,6 +40,9 @@ public class CliParser {
                     case "--ports", "-p":
                         ports = args[++i];
                         break;
+                    case "--maxWorkersPerHost", "-wh":
+                        maxWorkersPerHost = Integer.parseInt(args[++i]);
+                        break;
                     default:
                         throw new IllegalArgumentException("No such param " + currentArg);
                 }
@@ -48,10 +53,10 @@ public class CliParser {
         }
 
         System.out.printf(
-                "Parsed arguments: targets('%s'), ports(%s), socketLimit(%s), delayInMillis(%s), timeoutInMillis(%s)\n",
-                targets, ports, socketLimit, delayInMillis, timeoutInMillis);
+                "Parsed arguments: targets('%s'), ports(%s), socketLimit(%s), delayInMillis(%s), timeoutInMillis(%s), maxWorkersPerHost(%s)%n",
+                targets, ports, socketLimit, delayInMillis, timeoutInMillis, maxWorkersPerHost);
         
-        return new ScanOptions(targets.stream().toList(), socketLimit, delayInMillis, timeoutInMillis, ports);
+        return new ScanOptions(targets.stream().toList(), socketLimit, delayInMillis, timeoutInMillis, maxWorkersPerHost, ports);
     }
 
     public void usageAndExit() {
@@ -60,10 +65,11 @@ public class CliParser {
                     java -jar scanner.jar [OPTIONS] <host>
 
                 Options:
-                    --delay, -d: Waiting period in millis for connection attempts for a host
-                    --socketLimit, -sl: Socket Connection limit for a host
-                    --timeout, -t: Timeout per connection attempt
+                    --delay, -d: Waiting period in millis for connection attempts for a host; (Default: 0)
+                    --socketLimit, -sl: Socket Connection limit for a host; (Default: 1000)
+                    --timeout, -t: Timeout per connection attempt, 0 means infinite: (Default: 1000)
                     --ports, -p: Ports to be scanned
+                    --maxWorkersPerHost, -wh: Virtual Worker Threads run per target. Higher doesn't mean necessarily faster. But the more you use the more RAM is required. (Default: 1000)
 
                 Examples:
                     java -jar scanner.jar localhost