+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = super.hashCode();
+ result = prime * result
+ + ((this.hdrFieldsMap == null) ? 0 : hdrFieldsMap.hashCode());
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (getClass() != obj.getClass()) {
+ return false;
+ }
+ Packet other = (Packet) obj;
+ if (hdrFieldsMap == other.hdrFieldsMap) {
+ return true;
+ }
+ if (hdrFieldsMap == null || other.hdrFieldsMap == null) {
+ return false;
+ }
+ if (hdrFieldsMap != null && other.hdrFieldsMap != null) {
+ for (String field : hdrFieldsMap.keySet()) {
+ if (!Arrays.equals(hdrFieldsMap.get(field), other.hdrFieldsMap.get(field))) {
+ return false;
+ }
+ }
+ } else {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Adds to the passed Match this packet's header fields
+ *
+ * @param match
+ * The Match object to populate
+ */
+ public void populateMatch(Match match) {
+ // To be overridden by derived packet classes which have well known
+ // header fields so that Packet.getMatch would return desired result
+ }
+
+ /**
+ * Returns the Match object containing this packet and its payload
+ * encapsulated packets' header fields
+ *
+ * @return The Match containing the header fields of this packet and of its
+ * payload encapsulated packets
+ */
+ public Match getMatch() {
+ Match match = new Match();
+ Packet packet = this;
+ while (packet != null) {
+ packet.populateMatch(match);
+ packet = packet.getPayload();
+ }
+ return match;
+ }