1 files changed, 46 insertions, 0 deletions
diff --git a/sem5/oop/m7/src/PingMessage.java b/sem5/oop/m7/src/PingMessage.java
new file mode 100644
index 0000000..39a9386
--- /dev/null
+++ b/sem5/oop/m7/src/PingMessage.java
@@ -0,0 +1,46 @@
+import java.io.Serializable;
+import java.util.ArrayList;
+
+public class PingMessage extends Message implements Serializable {
+	private boolean is_response;
+	private boolean do_trace;
+	public ArrayList<String> trace;
+
+	public PingMessage(String from, String to, boolean trace) {
+		super(from, to);
+		this.is_response = false;
+		this.do_trace = trace;
+		if (trace) {
+			this.trace = new ArrayList<>();
+		}
+	}
+	
+	public void trace(String node) {
+		if (!this.do_trace || this.is_response) {
+			return;
+		}
+		System.out.println("DOING TRACE");
+		
+		this.trace.add(node);
+	}
+	
+	public void handle(Node node) throws Exception {
+		if (this.is_response) {
+			System.out.printf("%s >> Ping response%n", this.from);
+			if (this.do_trace) {
+				System.out.print("  Trace: ");
+				for (String t : this.trace) {
+					System.out.printf("%s -> ", t);
+				}
+				System.out.print(System.lineSeparator());
+			}
+			return;
+		}
+
+		this.is_response = true;
+		this.to = this.from;
+		this.from = node.name;
+		
+		node.sendMsgLocal(this);
+	}
+}