Added model abstraction for mvc-pattern.

src/main/java/model/src/Model.java

@@ -0,0 +1,15 @@
+/**
+ * @author Aaron Moser
+ * @date 01.12.2023
+ */
+package model.src;
+
+public class Model {
+    private NetworkModel networkModel;
+    private NFTablesModel nfTablesModel;
+
+    public Model() {
+        networkModel = new NetworkModel();
+        nfTablesModel = new NFTablesModel();
+    }
+}

src/main/java/model/src/NFTablesModel.java

@@ -0,0 +1,9 @@
+/**
+ * @author Aaron Moser
+ * @date 01.12.2023
+ */
+package model.src;
+
+public class NFTablesModel {
+    
+}

src/main/java/model/src/NetworkModel.java

@@ -0,0 +1,75 @@
+/**
+ * @author Aaron Moser
+ * @date 01.12.2023
+ */
+package model.src;
+
+import java.util.LinkedList;
+
+public class NetworkModel {
+    private LinkedList<String> ipv4NetworkConnections;
+    private LinkedList<String> ipv6NetworkConnections;
+
+    private LinkedList<String> tcpOverIPv4NetworkConnections;
+    private LinkedList<String> tcpOverIPv6NetworkConnections;
+
+    private LinkedList<String> udpOverIPv4NetworkConnections;
+    private LinkedList<String> udpOverIPv6NetworkConnections;
+
+    private LinkedList<String> unixNetworkConnections;
+
+    public NetworkModel() {
+        ipv4NetworkConnections = new LinkedList<String>();
+        ipv6NetworkConnections = new LinkedList<String>();
+
+        tcpOverIPv4NetworkConnections = new LinkedList<String>();
+        tcpOverIPv6NetworkConnections = new LinkedList<String>();
+
+        udpOverIPv6NetworkConnections = new LinkedList<String>();
+        udpOverIPv6NetworkConnections = new LinkedList<String>();
+
+        unixNetworkConnections = new LinkedList<String>();
+    }
+
+    public void addIPv4NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != ipv4NetworkConnections) {
+            ipv4NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addIPv6NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != ipv6NetworkConnections) {
+            ipv6NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addTCPOverIPv4NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != tcpOverIPv4NetworkConnections) {
+            tcpOverIPv4NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addTCPOverIPv6NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != tcpOverIPv6NetworkConnections) {
+            tcpOverIPv6NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addUDPOverIPv4NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != udpOverIPv4NetworkConnections) {
+            udpOverIPv4NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addUDPOverIPv6NetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != udpOverIPv6NetworkConnections) {
+            udpOverIPv6NetworkConnections.add(networkConnection);
+        }
+    }
+
+    public void addUnixNetworkConnection(String networkConnection) {
+        if (null != networkConnection && null != unixNetworkConnections) {
+            unixNetworkConnections.add(networkConnection);
+        }
+    }
+}