Add Topology classes

src/main/java/com/github/khalidzahra/topology/Topology.java

@@ -0,0 +1,41 @@
+package com.github.khalidzahra.topology;
+
+import com.github.khalidzahra.component.Component;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by Khalid on 9/28/21.
+ */
+public class Topology {
+
+    private String id;
+    private List<Component> components;
+
+    public Topology(String id) {
+        this.id = id;
+        this.components = new ArrayList<>();
+    }
+
+    public Topology(String id, List<Component> componentList) {
+        this.id = id;
+        this.components = componentList;
+    }
+
+    public List<Component> getComponentsConnectedToNode(String nodeId) {
+        return this.components.stream().filter(component -> component.getNetList().containsValue(nodeId)).toList();
+    }
+
+    public void addComponent(Component component) {
+        components.add(component);
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public List<Component> getComponents() {
+        return components;
+    }
+}

src/main/java/com/github/khalidzahra/topology/TopologyRegistry.java

@@ -0,0 +1,29 @@
+package com.github.khalidzahra.topology;
+
+import java.util.List;
+
+/**
+ * Created by Khalid on 9/28/21.
+ */
+public class TopologyRegistry {
+
+    private static List<Topology> topologyList;
+
+    public static void registerTopology(Topology topology) {
+        topologyList.add(topology);
+    }
+
+    public static Topology findTopology(String id) {
+        return topologyList.stream().filter(topology -> topology.getId().equals(id)).findAny().orElse(null);
+    }
+
+    public static boolean deregisterTopology(String id) {
+        Topology topology = findTopology(id);
+        if (topology == null) return false;
+        return topologyList.remove(topology);
+    }
+
+    public static List<Topology> getTopologyList() {
+        return topologyList;
+    }
+}