+//
+// // Extract all conversations present in the filtered trace.
+// List<Conversation> allConversations = tcpReassembler.getTcpConversations();
+// // Group conversations by hostname.
+// Map<String, List<Conversation>> convsByHostname = TcpConversationUtils.groupConversationsByHostname(allConversations, dnsMap);
+// System.out.println("Grouped conversations by hostname.");
+// // For each hostname, count the frequencies of packet lengths exchanged with that hostname.
+// final Map<String, Map<Integer, Integer>> pktLenFreqsByHostname = new HashMap<>();
+// convsByHostname.forEach((host, convs) -> pktLenFreqsByHostname.put(host, TcpConversationUtils.countPacketLengthFrequencies(convs)));
+// System.out.println("Counted frequencies of packet lengths exchanged with each hostname.");
+// // For each hostname, count the frequencies of packet sequences (i.e., count how many conversations exchange a
+// // sequence of packets of some specific lengths).
+// final Map<String, Map<String, Integer>> pktSeqFreqsByHostname = new HashMap<>();
+// convsByHostname.forEach((host, convs) -> pktSeqFreqsByHostname.put(host, TcpConversationUtils.countPacketSequenceFrequencies(convs)));
+// System.out.println("Counted frequencies of packet sequences exchanged with each hostname.");
+// // For each hostname, count frequencies of packet pairs exchanged with that hostname across all conversations
+// final Map<String, Map<String, Integer>> pktPairFreqsByHostname =
+// TcpConversationUtils.countPacketPairFrequenciesByHostname(allConversations, dnsMap);
+// System.out.println("Counted frequencies of packet pairs per hostname");
+// // For each user action, reassemble the set of TCP connections occurring shortly after
+// final Map<UserAction, List<Conversation>> userActionToConversations = trafficLabeler.getLabeledReassembledTcpTraffic();
+// final Map<UserAction, Map<String, List<Conversation>>> userActionsToConvsByHostname = trafficLabeler.getLabeledReassembledTcpTraffic(dnsMap);
+// System.out.println("Reassembled TCP conversations occurring shortly after each user event");
+//
+//
+//
+// /*
+// * NOTE: no need to generate these more complex on/off maps that also contain mappings from hostname and
+// * sequence identifiers as we do not care about hostnames and sequences during clustering.
+// * We can simply use the UserAction->List<Conversation> map to generate ON/OFF groupings of conversations.
+// */
+//
+//// // Contains all ON events: hostname -> sequence identifier -> list of conversations with that sequence
+//// Map<String, Map<String, List<Conversation>>> ons = new HashMap<>();
+//// // Contains all OFF events: hostname -> sequence identifier -> list of conversations with that sequence
+//// Map<String, Map<String, List<Conversation>>> offs = new HashMap<>();
+//// userActionsToConvsByHostname.forEach((ua, hostnameToConvs) -> {
+//// Map<String, Map<String, List<Conversation>>> outer = ua.getType() == Type.TOGGLE_ON ? ons : offs;
+//// hostnameToConvs.forEach((host, convs) -> {
+//// Map<String, List<Conversation>> seqsToConvs = TcpConversationUtils.
+//// groupConversationsByPacketSequence(convs, verbose);
+//// outer.merge(host, seqsToConvs, (oldMap, newMap) -> {
+//// newMap.forEach((sequence, cs) -> oldMap.merge(sequence, cs, (list1, list2) -> {
+//// list1.addAll(list2);
+//// return list1;
+//// }));
+//// return oldMap;
+//// });
+//// });
+//// });
+////
+//// System.out.println("==== ON ====");
+//// // Print out all the pairs into a file for ON events
+//// File fileOnEvents = new File(onPairsPath);
+//// PrintWriter pwOn = null;
+//// try {
+//// pwOn = new PrintWriter(fileOnEvents);
+//// } catch(Exception ex) {
+//// ex.printStackTrace();
+//// }
+//// for(Map.Entry<String, Map<String, List<Conversation>>> entry : ons.entrySet()) {
+//// Map<String, List<Conversation>> seqsToConvs = entry.getValue();
+//// for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
+//// List<Conversation> listConv = entryConv.getValue();
+//// // Just get the first Conversation because all Conversations in this group
+//// // should have the same pairs of Application Data.
+//// for(Conversation conv : listConv) {
+//// // Process only if it is a TLS packet
+//// if (conv.isTls()) {
+//// List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
+//// for(PcapPacketPair pair: tlsAppDataList) {
+//// System.out.println(PrintUtils.toCsv(pair, dnsMap));
+//// pwOn.println(PrintUtils.toCsv(pair, dnsMap));
+//// }
+//// } else { // Non-TLS conversations
+//// List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
+//// for(PcapPacketPair pair: packetList) {
+//// System.out.println(PrintUtils.toCsv(pair, dnsMap));
+//// pwOn.println(PrintUtils.toCsv(pair, dnsMap));
+//// }
+//// }
+//// }
+//// }
+//// }
+//// pwOn.close();
+////
+//// System.out.println("==== OFF ====");
+//// // Print out all the pairs into a file for ON events
+//// File fileOffEvents = new File(offPairsPath);
+//// PrintWriter pwOff = null;
+//// try {
+//// pwOff = new PrintWriter(fileOffEvents);
+//// } catch(Exception ex) {
+//// ex.printStackTrace();
+//// }
+//// for(Map.Entry<String, Map<String, List<Conversation>>> entry : offs.entrySet()) {
+//// Map<String, List<Conversation>> seqsToConvs = entry.getValue();
+//// for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
+//// List<Conversation> listConv = entryConv.getValue();
+//// // Just get the first Conversation because all Conversations in this group
+//// // should have the same pairs of Application Data.
+//// for(Conversation conv : listConv) {
+//// // Process only if it is a TLS packet
+//// if (conv.isTls()) {
+//// List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
+//// for(PcapPacketPair pair: tlsAppDataList) {
+//// System.out.println(PrintUtils.toCsv(pair, dnsMap));
+//// pwOff.println(PrintUtils.toCsv(pair, dnsMap));
+//// }
+//// } else { // Non-TLS conversations
+//// List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
+//// for (PcapPacketPair pair : packetList) {
+//// System.out.println(PrintUtils.toCsv(pair, dnsMap));
+//// pwOff.println(PrintUtils.toCsv(pair, dnsMap));
+//// }
+//// }
+//// }
+//// }
+//// }
+//// pwOff.close();
+//
+//
+// // ================================================ CLUSTERING ================================================
+// // Note: no need to use the more convoluted on/off maps; can simply use the UserAction->List<Conversation> map
+// // when don't care about hostnames and sequences (see comment earlier).
+//// List<Conversation> onConversations = userActionToConversations.entrySet().stream().
+//// filter(e -> e.getKey().getType() == Type.TOGGLE_ON). // drop all OFF events from stream
+//// map(e -> e.getValue()). // no longer interested in the UserActions
+//// flatMap(List::stream). // flatten List<List<T>> to a List<T>
+//// collect(Collectors.toList());
+//// List<Conversation> offConversations = userActionToConversations.entrySet().stream().
+//// filter(e -> e.getKey().getType() == Type.TOGGLE_OFF).
+//// map(e -> e.getValue()).
+//// flatMap(List::stream).
+//// collect(Collectors.toList());
+//// //Collections.sort(onConversations, (c1, c2) -> c1.getPackets().)
+////
+//// List<PcapPacketPair> onPairs = onConversations.stream().
+//// map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
+//// TcpConversationUtils.extractPacketPairs(c)).
+//// flatMap(List::stream). // flatten List<List<>> to List<>
+//// collect(Collectors.toList());
+//// List<PcapPacketPair> offPairs = offConversations.stream().
+//// map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
+//// TcpConversationUtils.extractPacketPairs(c)).
+//// flatMap(List::stream). // flatten List<List<>> to List<>
+//// collect(Collectors.toList());
+//// // Note: need to update the DnsMap of all PcapPacketPairs if we want to use the IP/hostname-sensitive distance.
+//// Stream.concat(Stream.of(onPairs), Stream.of(offPairs)).flatMap(List::stream).forEach(p -> p.setDnsMap(dnsMap));
+//// // Perform clustering on conversation logged as part of all ON events.
+////// DBSCANClusterer<PcapPacketPair> onClusterer = new DBSCANClusterer<>(10.0, 45);
+//// DBSCANClusterer<PcapPacketPair> onClusterer = new DBSCANClusterer<>(2, 2);
+//// //DBSCANClusterer<PcapPacketPair> onClusterer = new DBSCANClusterer<>(10.0, 10);
+//// List<Cluster<PcapPacketPair>> onClusters = onClusterer.cluster(onPairs);
+//// // Perform clustering on conversation logged as part of all OFF events.
+////// DBSCANClusterer<PcapPacketPair> offClusterer = new DBSCANClusterer<>(10.0, 45);
+//// DBSCANClusterer<PcapPacketPair> offClusterer = new DBSCANClusterer<>(2, 2);
+//// //DBSCANClusterer<PcapPacketPair> offClusterer = new DBSCANClusterer<>(10.0, 10);
+//// List<Cluster<PcapPacketPair>> offClusters = offClusterer.cluster(offPairs);
+//// // Sort the conversations as reference
+//// List<Conversation> sortedAllConversation = TcpConversationUtils.sortConversationList(allConversations);
+//// // Output clusters
+//// System.out.println("========================================");
+//// System.out.println(" Clustering results for ON ");
+//// System.out.println(" Number of clusters: " + onClusters.size());
+//// int count = 0;
+//// List<List<List<PcapPacket>>> ppListOfListReadOn = new ArrayList<>();
+//// List<List<List<PcapPacket>>> ppListOfListListOn = new ArrayList<>();
+//// for (Cluster<PcapPacketPair> c : onClusters) {
+//// System.out.println(String.format("<<< Cluster #%02d (%03d points) >>>", ++count, c.getPoints().size()));
+//// System.out.print(PrintUtils.toSummaryString(c));
+//// if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
+//// //if(c.getPoints().size() > 25) {
+//// // Print to file
+//// List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
+//// ppListOfListListOn.add(ppListOfList);
+//// }
+//// }
+//// // TODO: Merging test
+//// ppListOfListListOn = PcapPacketUtils.mergeSignatures(ppListOfListListOn, sortedAllConversation);
+//// // TODO: Need to remove sequence 550 567 for Blossom phone side since it is not a good signature (overlap)!
+////// PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOn, 1);
+//// // TODO: Need to remove sequence 69 296 for Blossom device side since it is not a good signature (overlap)!
+////// PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOn, 2);
+//// // TODO: Need to remove sequence number 2 for ST plug since it is not a good signature!
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOn, 2);
+//// // TODO: Need to remove sequence number 0 for Arlo Camera since it is not a good signature!
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOn, 0);
+//// // TODO: Need to remove sequence number 0 for TP-Link plug since it is not a good signature!
+//// // TODO: This sequence actually belongs to the local communication between the plug and the phone
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOn, 0);
+//// ppListOfListListOn = PcapPacketUtils.sortSignatures(ppListOfListListOn);
+//// PcapPacketUtils.printSignatures(ppListOfListListOn);
+//// //count = 0;
+//// /*for (List<List<PcapPacket>> ll : ppListOfListListOn) {
+//// PrintUtils.serializeClustersIntoFile("./onSignature" + ++count + ".sig", ll);
+//// ppListOfListReadOn.add(PrintUtils.deserializeClustersFromFile("./onSignature" + count + ".sig"));
+//// }*/
+//// PrintUtils.serializeSignatureIntoFile("./onSignature.sig", ppListOfListListOn);
+//// ppListOfListReadOn = PrintUtils.deserializeSignatureFromFile("./onSignature.sig");
+////
+//// System.out.println("========================================");
+//// System.out.println(" Clustering results for OFF ");
+//// System.out.println(" Number of clusters: " + offClusters.size());
+//// count = 0;
+//// List<List<List<PcapPacket>>> ppListOfListReadOff = new ArrayList<>();
+//// List<List<List<PcapPacket>>> ppListOfListListOff = new ArrayList<>();
+//// for (Cluster<PcapPacketPair> c : offClusters) {
+//// System.out.println(String.format("<<< Cluster #%03d (%06d points) >>>", ++count, c.getPoints().size()));
+//// System.out.print(PrintUtils.toSummaryString(c));
+//// if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
+//// //if(c.getPoints().size() > 25) {
+//// // Print to file
+//// List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
+//// ppListOfListListOff.add(ppListOfList);
+//// }
+//// }
+//// // TODO: Merging test
+//// ppListOfListListOff = PcapPacketUtils.mergeSignatures(ppListOfListListOff, sortedAllConversation);
+//// // TODO: Need to remove sequence 69 296 for Blossom device side since it is not a good signature (overlap)!
+////// PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOff, 3);
+//// // TODO: Need to remove sequence number 1 for Nest Thermostat since it is not a good signature!
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOff, 1);
+//// // TODO: Need to remove sequence number 0 for Arlo Camera since it is not a good signature!
+////// PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOff, 1);
+//// // TODO: Need to remove sequence number 2 for ST plug since it is not a good signature!
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOff, 2);
+//// // TODO: Need to remove sequence number 0 for TP-Link plug since it is not a good signature!
+//// // TODO: This sequence actually belongs to the local communication between the plug and the phone
+//// //PcapPacketUtils.removeSequenceFromSignature(ppListOfListListOff, 0);
+//// ppListOfListListOff = PcapPacketUtils.sortSignatures(ppListOfListListOff);
+//// PcapPacketUtils.printSignatures(ppListOfListListOff);
+//// //count = 0;
+//// /*for (List<List<PcapPacket>> ll : ppListOfListListOff) {
+//// PrintUtils.serializeClustersIntoFile("./offSignature" + ++count + ".sig", ll);
+//// ppListOfListReadOff.add(PrintUtils.deserializeClustersFromFile("./offSignature" + count + ".sig"));
+//// }*/
+//// PrintUtils.serializeSignatureIntoFile("./offSignature.sig", ppListOfListListOff);
+//// ppListOfListReadOff = PrintUtils.deserializeSignatureFromFile("./offSignature.sig");
+//// System.out.println("========================================");
+// // ============================================================================================================
+//
+// // TODO: This part is just for DBSCAN sensitivity experiment
+// // TODO: This part is just for DBSCAN sensitivity experiment
+// // TODO: This part is just for DBSCAN sensitivity experiment
+// // TODO: This part is just for DBSCAN sensitivity experiment
+// // TODO: This part is just for DBSCAN sensitivity experiment