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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);
}
}
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