eventqueueentry.java

DSr project for the java applications

package dsr;



//this class implements the entry in the Event Queue
import java.net.*;

class EventQueueEntry {
  int ID;                     //ID for that entry, it is unique
  long time;                  //time when this entry is added to the Event Queue
  InetAddress srcIP;          //IP address of the source from where this packet was received
  InetAddress dstIP;          //basically this is my IP address
  DatagramPacket packet;      //the actual data packet
  static int tempID = 0;      //a static int to generate the unique ID

  //default constructor
  public EventQueueEntry() {};

  //constructor
  public EventQueueEntry(DatagramPacket packet, InetAddress srcIP, InetAddress dstIP){
    ID = tempID++;
    time = System.currentTimeMillis();
    this.srcIP = srcIP;
    this.dstIP = dstIP;
    this.packet = packet;
  }

  //copy cnstructor
  public EventQueueEntry(EventQueueEntry rhs){
    ID = rhs.ID;
    time = rhs.time;
    srcIP = rhs.srcIP;
    dstIP = rhs.dstIP;
    packet = rhs.packet;
  }

  //toString function to print the elements of this class in the string format
  public String toString() {
    final String EOLN = java.lang.System.getProperty("line.separator");
    String value = "ID: " + ID + EOLN +
                   "Time: " + time + EOLN +
                   "Source IP Address: " + srcIP.toString() + EOLN +
                   "Destination IP Address: " + dstIP.toString() + EOLN;
   return value;
  }
}