+ @Override
+ public void onFlowsStatisticsUpdate(final FlowsStatisticsUpdate notification) {
+
+ //Check if response is for the request statistics-manager sent.
+ if(!messageManager.isRequestTxIdExist(notification.getId(),notification.getTransactionId(),notification.isMoreReplies()))
+ return;
+
+ sucLogger.debug("Received flow stats update : {}",notification.toString());
+
+ final NodeKey key = new NodeKey(notification.getId());
+ final NodeStatisticsAger nsa = this.statisticsManager.getStatisticsAger(key.getId());
+ DataModificationTransaction it = this.statisticsManager.startChange();
+
+ for(FlowAndStatisticsMapList map: notification.getFlowAndStatisticsMapList()){
+ short tableId = map.getTableId();
+
+
+ boolean foundOriginalFlow = false;
+
+ FlowBuilder flowBuilder = new FlowBuilder();
+
+ FlowStatisticsDataBuilder flowStatisticsData = new FlowStatisticsDataBuilder();
+
+ FlowBuilder flow = new FlowBuilder();
+ flow.setContainerName(map.getContainerName());
+ flow.setBufferId(map.getBufferId());
+ flow.setCookie(map.getCookie());
+ flow.setCookieMask(map.getCookieMask());
+ flow.setFlags(map.getFlags());
+ flow.setFlowName(map.getFlowName());
+ flow.setHardTimeout(map.getHardTimeout());
+ if(map.getFlowId() != null)
+ flow.setId(new FlowId(map.getFlowId().getValue()));
+ flow.setIdleTimeout(map.getIdleTimeout());
+ flow.setInstallHw(map.isInstallHw());
+ flow.setInstructions(map.getInstructions());
+ if(map.getFlowId()!= null)
+ flow.setKey(new FlowKey(new FlowId(map.getKey().getFlowId().getValue())));
+ flow.setMatch(map.getMatch());
+ flow.setOutGroup(map.getOutGroup());
+ flow.setOutPort(map.getOutPort());
+ flow.setPriority(map.getPriority());
+ flow.setStrict(map.isStrict());
+ flow.setTableId(tableId);
+
+ Flow flowRule = flow.build();
+
+ FlowAndStatisticsMapListBuilder stats = new FlowAndStatisticsMapListBuilder();
+ stats.setByteCount(map.getByteCount());
+ stats.setPacketCount(map.getPacketCount());
+ stats.setDuration(map.getDuration());
+
+ GenericStatistics flowStats = stats.build();
+
+ //Augment the data to the flow node
+
+ FlowStatisticsBuilder flowStatistics = new FlowStatisticsBuilder();
+ flowStatistics.setByteCount(flowStats.getByteCount());
+ flowStatistics.setPacketCount(flowStats.getPacketCount());
+ flowStatistics.setDuration(flowStats.getDuration());
+ flowStatistics.setContainerName(map.getContainerName());
+ flowStatistics.setBufferId(map.getBufferId());
+ flowStatistics.setCookie(map.getCookie());
+ flowStatistics.setCookieMask(map.getCookieMask());
+ flowStatistics.setFlags(map.getFlags());
+ flowStatistics.setFlowName(map.getFlowName());
+ flowStatistics.setHardTimeout(map.getHardTimeout());
+ flowStatistics.setIdleTimeout(map.getIdleTimeout());
+ flowStatistics.setInstallHw(map.isInstallHw());
+ flowStatistics.setInstructions(map.getInstructions());
+ flowStatistics.setMatch(map.getMatch());
+ flowStatistics.setOutGroup(map.getOutGroup());
+ flowStatistics.setOutPort(map.getOutPort());
+ flowStatistics.setPriority(map.getPriority());
+ flowStatistics.setStrict(map.isStrict());
+ flowStatistics.setTableId(tableId);
+
+ flowStatisticsData.setFlowStatistics(flowStatistics.build());
+
+ sucLogger.debug("Flow : {}",flowRule.toString());
+ sucLogger.debug("Statistics to augment : {}",flowStatistics.build().toString());
+
+ InstanceIdentifier<Table> tableRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class).child(Table.class, new TableKey(tableId)).toInstance();
+
+ Table table= (Table)it.readConfigurationData(tableRef);
+
+ //TODO: Not a good way to do it, need to figure out better way.
+ //TODO: major issue in any alternate approach is that flow key is incrementally assigned
+ //to the flows stored in data store.
+ // Augment same statistics to all the matching masked flow
+ if(table != null){
+
+ for(Flow existingFlow : table.getFlow()){
+ sucLogger.debug("Existing flow in data store : {}",existingFlow.toString());
+ if(flowEquals(flowRule,existingFlow)){
+ InstanceIdentifier<Flow> flowRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class)
+ .child(Table.class, new TableKey(tableId))
+ .child(Flow.class,existingFlow.getKey()).toInstance();
+ flowBuilder.setKey(existingFlow.getKey());
+ flowBuilder.addAugmentation(FlowStatisticsData.class, flowStatisticsData.build());
+ sucLogger.debug("Found matching flow in the datastore, augmenting statistics");
+ foundOriginalFlow = true;
+ // Update entry with timestamp of latest response
+ flow.setKey(existingFlow.getKey());
+ FlowEntry flowStatsEntry = nsa.new FlowEntry(tableId,flow.build());
+ nsa.updateFlowStats(flowStatsEntry);
+
+ it.putOperationalData(flowRef, flowBuilder.build());
+ }
+ }
+ }
+
+ table= (Table)it.readOperationalData(tableRef);
+ if(!foundOriginalFlow && table != null){
+
+ for(Flow existingFlow : table.getFlow()){
+ FlowStatisticsData augmentedflowStatisticsData = existingFlow.getAugmentation(FlowStatisticsData.class);
+ if(augmentedflowStatisticsData != null){
+ FlowBuilder existingOperationalFlow = new FlowBuilder();
+ existingOperationalFlow.fieldsFrom(augmentedflowStatisticsData.getFlowStatistics());
+ sucLogger.debug("Existing unaccounted flow in operational data store : {}",existingFlow.toString());
+ if(flowEquals(flowRule,existingOperationalFlow.build())){
+ InstanceIdentifier<Flow> flowRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class)
+ .child(Table.class, new TableKey(tableId))
+ .child(Flow.class,existingFlow.getKey()).toInstance();
+ flowBuilder.setKey(existingFlow.getKey());
+ flowBuilder.addAugmentation(FlowStatisticsData.class, flowStatisticsData.build());
+ sucLogger.debug("Found matching unaccounted flow in the operational datastore, augmenting statistics");
+ foundOriginalFlow = true;
+
+ // Update entry with timestamp of latest response
+ flow.setKey(existingFlow.getKey());
+ FlowEntry flowStatsEntry = nsa.new FlowEntry(tableId,flow.build());
+ nsa.updateFlowStats(flowStatsEntry);
+
+ it.putOperationalData(flowRef, flowBuilder.build());
+ break;
+ }
+ }
+ }
+ }
+ if(!foundOriginalFlow){
+ String flowKey = "#UF$TABLE*"+Short.toString(tableId)+"*"+Integer.toString(this.unaccountedFlowsCounter);
+ this.unaccountedFlowsCounter++;
+ FlowKey newFlowKey = new FlowKey(new FlowId(flowKey));
+ InstanceIdentifier<Flow> flowRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class)
+ .child(Table.class, new TableKey(tableId))
+ .child(Flow.class,newFlowKey).toInstance();
+ flowBuilder.setKey(newFlowKey);
+ flowBuilder.addAugmentation(FlowStatisticsData.class, flowStatisticsData.build());
+ sucLogger.debug("Flow {} is not present in config data store, augmenting statistics as an unaccounted flow",flowBuilder.build());
+
+ // Update entry with timestamp of latest response
+ flow.setKey(newFlowKey);
+ FlowEntry flowStatsEntry = nsa.new FlowEntry(tableId,flow.build());
+ nsa.updateFlowStats(flowStatsEntry);
+
+ it.putOperationalData(flowRef, flowBuilder.build());
+ }
+ }
+ it.commit();
+ }
+
+ @Override
+ public void onAggregateFlowStatisticsUpdate(AggregateFlowStatisticsUpdate notification) {
+ //Check if response is for the request statistics-manager sent.
+ if(!messageManager.isRequestTxIdExist(notification.getId(),notification.getTransactionId(),notification.isMoreReplies()))
+ return;
+
+ NodeKey key = new NodeKey(notification.getId());
+
+ Short tableId = messageManager.getTableIdForTxId(notification.getId(),notification.getTransactionId());
+ if(tableId != null){
+
+ DataModificationTransaction it = this.statisticsManager.startChange();
+
+ InstanceIdentifier<Table> tableRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class).child(Table.class, new TableKey(tableId)).toInstance();
+
+ AggregateFlowStatisticsDataBuilder aggregateFlowStatisticsDataBuilder = new AggregateFlowStatisticsDataBuilder();
+ AggregateFlowStatisticsBuilder aggregateFlowStatisticsBuilder = new AggregateFlowStatisticsBuilder();
+ aggregateFlowStatisticsBuilder.setByteCount(notification.getByteCount());
+ aggregateFlowStatisticsBuilder.setFlowCount(notification.getFlowCount());
+ aggregateFlowStatisticsBuilder.setPacketCount(notification.getPacketCount());
+ aggregateFlowStatisticsDataBuilder.setAggregateFlowStatistics(aggregateFlowStatisticsBuilder.build());
+
+ sucLogger.debug("Augment aggregate statistics: {} for table {} on Node {}",aggregateFlowStatisticsBuilder.build().toString(),tableId,key);
+
+ TableBuilder tableBuilder = new TableBuilder();
+ tableBuilder.setKey(new TableKey(tableId));
+ tableBuilder.addAugmentation(AggregateFlowStatisticsData.class, aggregateFlowStatisticsDataBuilder.build());
+ it.putOperationalData(tableRef, tableBuilder.build());
+ it.commit();
+
+ }
+ }
+
+ @Override
+ public void onNodeConnectorStatisticsUpdate(NodeConnectorStatisticsUpdate notification) {
+ //Check if response is for the request statistics-manager sent.
+ if(!messageManager.isRequestTxIdExist(notification.getId(),notification.getTransactionId(),notification.isMoreReplies()))
+ return;
+
+ NodeKey key = new NodeKey(notification.getId());
+
+ List<NodeConnectorStatisticsAndPortNumberMap> portsStats = notification.getNodeConnectorStatisticsAndPortNumberMap();
+ DataModificationTransaction it = this.statisticsManager.startChange();
+
+ for(NodeConnectorStatisticsAndPortNumberMap portStats : portsStats){
+
+ FlowCapableNodeConnectorStatisticsBuilder statisticsBuilder
+ = new FlowCapableNodeConnectorStatisticsBuilder();
+ statisticsBuilder.setBytes(portStats.getBytes());
+ statisticsBuilder.setCollisionCount(portStats.getCollisionCount());
+ statisticsBuilder.setDuration(portStats.getDuration());
+ statisticsBuilder.setPackets(portStats.getPackets());
+ statisticsBuilder.setReceiveCrcError(portStats.getReceiveCrcError());
+ statisticsBuilder.setReceiveDrops(portStats.getReceiveDrops());
+ statisticsBuilder.setReceiveErrors(portStats.getReceiveErrors());
+ statisticsBuilder.setReceiveFrameError(portStats.getReceiveFrameError());
+ statisticsBuilder.setReceiveOverRunError(portStats.getReceiveOverRunError());
+ statisticsBuilder.setTransmitDrops(portStats.getTransmitDrops());
+ statisticsBuilder.setTransmitErrors(portStats.getTransmitErrors());
+
+ //Augment data to the node-connector
+ FlowCapableNodeConnectorStatisticsDataBuilder statisticsDataBuilder =
+ new FlowCapableNodeConnectorStatisticsDataBuilder();
+
+ statisticsDataBuilder.setFlowCapableNodeConnectorStatistics(statisticsBuilder.build());
+
+ InstanceIdentifier<NodeConnector> nodeConnectorRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key).child(NodeConnector.class, new NodeConnectorKey(portStats.getNodeConnectorId())).toInstance();
+
+ NodeConnector nodeConnector = (NodeConnector)it.readOperationalData(nodeConnectorRef);
+
+ if(nodeConnector != null){
+ sucLogger.debug("Augmenting port statistics {} to port {}",statisticsDataBuilder.build().toString(),nodeConnectorRef.toString());
+ NodeConnectorBuilder nodeConnectorBuilder = new NodeConnectorBuilder();
+ nodeConnectorBuilder.addAugmentation(FlowCapableNodeConnectorStatisticsData.class, statisticsDataBuilder.build());
+ it.putOperationalData(nodeConnectorRef, nodeConnectorBuilder.build());
+ }
+ }
+ it.commit();
+ }
+
+ @Override
+ public void onFlowTableStatisticsUpdate(FlowTableStatisticsUpdate notification) {
+ //Check if response is for the request statistics-manager sent.
+ if(!messageManager.isRequestTxIdExist(notification.getId(),notification.getTransactionId(),notification.isMoreReplies()))
+ return;
+
+ NodeKey key = new NodeKey(notification.getId());
+
+ List<FlowTableAndStatisticsMap> flowTablesStatsList = notification.getFlowTableAndStatisticsMap();
+ DataModificationTransaction it = this.statisticsManager.startChange();
+
+ for (FlowTableAndStatisticsMap ftStats : flowTablesStatsList){
+
+ InstanceIdentifier<Table> tableRef = InstanceIdentifier.builder(Nodes.class).child(Node.class, key)
+ .augmentation(FlowCapableNode.class).child(Table.class, new TableKey(ftStats.getTableId().getValue())).toInstance();
+
+ FlowTableStatisticsDataBuilder statisticsDataBuilder = new FlowTableStatisticsDataBuilder();
+
+ FlowTableStatisticsBuilder statisticsBuilder = new FlowTableStatisticsBuilder();
+ statisticsBuilder.setActiveFlows(ftStats.getActiveFlows());
+ statisticsBuilder.setPacketsLookedUp(ftStats.getPacketsLookedUp());
+ statisticsBuilder.setPacketsMatched(ftStats.getPacketsMatched());
+
+ statisticsDataBuilder.setFlowTableStatistics(statisticsBuilder.build());
+
+ sucLogger.debug("Augment flow table statistics: {} for table {} on Node {}",statisticsBuilder.build().toString(),ftStats.getTableId(),key);
+
+ TableBuilder tableBuilder = new TableBuilder();
+ tableBuilder.setKey(new TableKey(ftStats.getTableId().getValue()));
+ tableBuilder.addAugmentation(FlowTableStatisticsData.class, statisticsDataBuilder.build());
+ it.putOperationalData(tableRef, tableBuilder.build());
+ }
+ it.commit();
+ }
+
+ @Override
+ public void onQueueStatisticsUpdate(QueueStatisticsUpdate notification) {
+
+ //Check if response is for the request statistics-manager sent.
+ if(!messageManager.isRequestTxIdExist(notification.getId(),notification.getTransactionId(),notification.isMoreReplies()))
+ return;
+
+ NodeKey key = new NodeKey(notification.getId());
+
+ //Add statistics to local cache
+ NodeStatisticsAger nsa = this.statisticsManager.getStatisticsAger(key.getId());
+
+ List<QueueIdAndStatisticsMap> queuesStats = notification.getQueueIdAndStatisticsMap();
+ DataModificationTransaction it = this.statisticsManager.startChange();
+
+ for(QueueIdAndStatisticsMap swQueueStats : queuesStats){
+
+ QueueEntry queueEntry = nsa.new QueueEntry(swQueueStats.getNodeConnectorId(),swQueueStats.getQueueId());
+ nsa.updateQueueStats(queueEntry);
+
+ FlowCapableNodeConnectorQueueStatisticsDataBuilder queueStatisticsDataBuilder = new FlowCapableNodeConnectorQueueStatisticsDataBuilder();
+
+ FlowCapableNodeConnectorQueueStatisticsBuilder queueStatisticsBuilder = new FlowCapableNodeConnectorQueueStatisticsBuilder();
+
+ queueStatisticsBuilder.fieldsFrom(swQueueStats);
+
+ queueStatisticsDataBuilder.setFlowCapableNodeConnectorQueueStatistics(queueStatisticsBuilder.build());
+
+ InstanceIdentifier<Queue> queueRef
+ = InstanceIdentifier.builder(Nodes.class)
+ .child(Node.class, key)
+ .child(NodeConnector.class, new NodeConnectorKey(swQueueStats.getNodeConnectorId()))
+ .augmentation(FlowCapableNodeConnector.class)
+ .child(Queue.class, new QueueKey(swQueueStats.getQueueId())).toInstance();
+
+ QueueBuilder queueBuilder = new QueueBuilder();
+ queueBuilder.addAugmentation(FlowCapableNodeConnectorQueueStatisticsData.class, queueStatisticsDataBuilder.build());
+ queueBuilder.setKey(new QueueKey(swQueueStats.getQueueId()));
+
+ sucLogger.debug("Augmenting queue statistics {} of queue {} to port {}"
+ ,queueStatisticsDataBuilder.build().toString(),
+ swQueueStats.getQueueId(),
+ swQueueStats.getNodeConnectorId());
+
+ it.putOperationalData(queueRef, queueBuilder.build());
+ }
+ it.commit();
+ }
+
+ private static NodeRef getNodeRef(NodeKey nodeKey){
+ InstanceIdentifierBuilder<?> builder = InstanceIdentifier.builder(Nodes.class).child(Node.class, nodeKey);
+ return new NodeRef(builder.toInstance());
+ }
+
+ public static boolean flowEquals(Flow statsFlow, Flow storedFlow) {
+ if (statsFlow.getClass() != storedFlow.getClass()) {
+ return false;
+ }
+ if (statsFlow.getContainerName()== null) {
+ if (storedFlow.getContainerName()!= null) {
+ return false;
+ }
+ } else if(!statsFlow.getContainerName().equals(storedFlow.getContainerName())) {
+ return false;
+ }
+ if (statsFlow.getMatch()== null) {
+ if (storedFlow.getMatch() != null) {
+ return false;
+ }
+ } //else if(!statsFlow.getMatch().equals(storedFlow.getMatch())) {
+ else if(!matchEquals(statsFlow.getMatch(), storedFlow.getMatch())) {
+ return false;
+ }
+ if (storedFlow.getPriority() == null) {
+ if (statsFlow.getPriority() != null && statsFlow.getPriority()!= 0x8000) {
+ return false;
+ }
+ } else if(!statsFlow.getPriority().equals(storedFlow.getPriority())) {
+ return false;
+ }
+ if (statsFlow.getTableId() == null) {
+ if (storedFlow.getTableId() != null) {
+ return false;
+ }
+ } else if(!statsFlow.getTableId().equals(storedFlow.getTableId())) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Explicit equals method to compare the 'match' for flows stored in the data-stores and flow fetched from the switch.
+ * Flow installation process has three steps
+ * 1) Store flow in config data store
+ * 2) and send it to plugin for installation
+ * 3) Flow gets installed in switch
+ *
+ * The flow user wants to install and what finally gets installed in switch can be slightly different.
+ * E.g, If user installs flow with src/dst ip=10.0.0.1/24, when it get installed in the switch
+ * src/dst ip will be changes to 10.0.0.0/24 because of netmask of 24. When statistics manager fetch
+ * stats it gets 10.0.0.0/24 rather then 10.0.0.1/24. Custom match takes care of by using masked ip
+ * while comparing two ip addresses.
+ *
+ * Sometimes when user don't provide few values that is required by flow installation request, like
+ * priority,hard timeout, idle timeout, cookies etc, plugin usages default values before sending
+ * request to the switch. So when statistics manager gets flow statistics, it gets the default value.
+ * But the flow stored in config data store don't have those defaults value. I included those checks
+ * in the customer flow/match equal function.
+ *
+ *
+ * @param statsFlow
+ * @param storedFlow
+ * @return
+ */
+
+ public static boolean matchEquals(Match statsFlow, Match storedFlow) {
+ if (statsFlow == storedFlow) {
+ return true;
+ }
+ if (storedFlow.getClass() != statsFlow.getClass()) {
+ return false;
+ }
+ if (storedFlow.getEthernetMatch() == null) {
+ if (statsFlow.getEthernetMatch() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getEthernetMatch().equals(statsFlow.getEthernetMatch())) {
+ return false;
+ }
+ if (storedFlow.getIcmpv4Match()== null) {
+ if (statsFlow.getIcmpv4Match() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getIcmpv4Match().equals(statsFlow.getIcmpv4Match())) {
+ return false;
+ }
+ if (storedFlow.getIcmpv6Match() == null) {
+ if (statsFlow.getIcmpv6Match() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getIcmpv6Match().equals(statsFlow.getIcmpv6Match())) {
+ return false;
+ }
+ if (storedFlow.getInPhyPort() == null) {
+ if (statsFlow.getInPhyPort() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getInPhyPort().equals(statsFlow.getInPhyPort())) {
+ return false;
+ }
+ if (storedFlow.getInPort()== null) {
+ if (statsFlow.getInPort() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getInPort().equals(statsFlow.getInPort())) {
+ return false;
+ }
+ if (storedFlow.getIpMatch()== null) {
+ if (statsFlow.getIpMatch() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getIpMatch().equals(statsFlow.getIpMatch())) {
+ return false;
+ }
+ if (storedFlow.getLayer3Match()== null) {
+ if (statsFlow.getLayer3Match() != null) {
+ return false;
+ }
+ } else if(!layer3MatchEquals(statsFlow.getLayer3Match(),storedFlow.getLayer3Match())) {
+ return false;
+ }
+ if (storedFlow.getLayer4Match()== null) {
+ if (statsFlow.getLayer4Match() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getLayer4Match().equals(statsFlow.getLayer4Match())) {
+ return false;
+ }
+ if (storedFlow.getMetadata() == null) {
+ if (statsFlow.getMetadata() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getMetadata().equals(statsFlow.getMetadata())) {
+ return false;
+ }
+ if (storedFlow.getProtocolMatchFields() == null) {
+ if (statsFlow.getProtocolMatchFields() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getProtocolMatchFields().equals(statsFlow.getProtocolMatchFields())) {
+ return false;
+ }
+ if (storedFlow.getTunnel()== null) {
+ if (statsFlow.getTunnel() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getTunnel().equals(statsFlow.getTunnel())) {
+ return false;
+ }
+ if (storedFlow.getVlanMatch()== null) {
+ if (statsFlow.getVlanMatch() != null) {
+ return false;
+ }
+ } else if(!storedFlow.getVlanMatch().equals(statsFlow.getVlanMatch())) {
+ return false;
+ }
+ return true;
+ }
+
+ protected static boolean layer3MatchEquals(Layer3Match statsLayer3Match, Layer3Match storedLayer3Match){
+ boolean verdict = true;
+ if(statsLayer3Match instanceof Ipv4Match && storedLayer3Match instanceof Ipv4Match){
+ Ipv4Match statsIpv4Match = (Ipv4Match)statsLayer3Match;
+ Ipv4Match storedIpv4Match = (Ipv4Match)storedLayer3Match;
+
+ if (verdict) {
+ verdict = compareNullSafe(
+ storedIpv4Match.getIpv4Destination(), statsIpv4Match.getIpv4Destination());
+ }
+ if (verdict) {
+ verdict = compareNullSafe(
+ statsIpv4Match.getIpv4Source(), storedIpv4Match.getIpv4Source());
+ }
+ } else {
+ Boolean nullCheckOut = checkNullValues(storedLayer3Match, statsLayer3Match);
+ if (nullCheckOut != null) {
+ verdict = nullCheckOut;
+ } else {
+ verdict = storedLayer3Match.equals(statsLayer3Match);
+ }
+ }
+
+ return verdict;
+ }
+
+ private static boolean compareNullSafe(Ipv4Prefix statsIpv4, Ipv4Prefix storedIpv4) {
+ boolean verdict = true;
+ Boolean checkDestNullValuesOut = checkNullValues(storedIpv4, statsIpv4);
+ if (checkDestNullValuesOut != null) {
+ verdict = checkDestNullValuesOut;
+ } else if(!IpAddressEquals(statsIpv4, storedIpv4)){
+ verdict = false;
+ }
+
+ return verdict;
+ }
+
+ private static Boolean checkNullValues(Object v1, Object v2) {
+ Boolean verdict = null;
+ if (v1 == null && v2 != null) {
+ verdict = Boolean.FALSE;
+ } else if (v1 != null && v2 == null) {
+ verdict = Boolean.FALSE;
+ } else if (v1 == null && v2 == null) {
+ verdict = Boolean.TRUE;
+ }
+
+ return verdict;
+ }
+
+ /**
+ * TODO: why don't we use the default Ipv4Prefix.equals()?
+ *
+ * @param statsIpAddress
+ * @param storedIpAddress
+ * @return true if IPv4prefixes equals
+ */
+ private static boolean IpAddressEquals(Ipv4Prefix statsIpAddress, Ipv4Prefix storedIpAddress) {
+ IntegerIpAddress statsIpAddressInt = StrIpToIntIp(statsIpAddress.getValue());
+ IntegerIpAddress storedIpAddressInt = StrIpToIntIp(storedIpAddress.getValue());
+
+ if(IpAndMaskBasedMatch(statsIpAddressInt,storedIpAddressInt)){
+ return true;
+ }
+ if(IpBasedMatch(statsIpAddressInt,storedIpAddressInt)){
+ return true;
+ }
+ return false;
+ }
+
+ private static boolean IpAndMaskBasedMatch(IntegerIpAddress statsIpAddressInt,IntegerIpAddress storedIpAddressInt){
+ return ((statsIpAddressInt.getIp() & statsIpAddressInt.getMask()) == (storedIpAddressInt.getIp() & storedIpAddressInt.getMask()));
+ }
+
+ private static boolean IpBasedMatch(IntegerIpAddress statsIpAddressInt,IntegerIpAddress storedIpAddressInt){
+ return (statsIpAddressInt.getIp() == storedIpAddressInt.getIp());
+ }
+
+ /**
+ * Method return integer version of ip address. Converted int will be mask if
+ * mask specified
+ */
+ private static IntegerIpAddress StrIpToIntIp(String ipAddresss){
+
+ String[] parts = ipAddresss.split("/");
+ String ip = parts[0];
+ int prefix;
+
+ if (parts.length < 2) {
+ prefix = 32;
+ } else {
+ prefix = Integer.parseInt(parts[1]);
+ }
+
+ IntegerIpAddress integerIpAddress = null;
+ try {
+ Inet4Address addr = (Inet4Address) InetAddress.getByName(ip);
+ byte[] addrBytes = addr.getAddress();
+ int ipInt = ((addrBytes[0] & 0xFF) << 24) |
+ ((addrBytes[1] & 0xFF) << 16) |
+ ((addrBytes[2] & 0xFF) << 8) |
+ ((addrBytes[3] & 0xFF) << 0);
+
+ int mask = 0xffffffff << 32 - prefix;
+
+ integerIpAddress = new IntegerIpAddress(ipInt, mask);
+ } catch (UnknownHostException e){
+ sucLogger.error("Failed to determine host IP address by name: {}", e.getMessage(), e);
+ }
+
+ return integerIpAddress;
+ }
+
+ static class IntegerIpAddress{
+ int ip;
+ int mask;
+ public IntegerIpAddress(int ip, int mask) {
+ this.ip = ip;
+ this.mask = mask;
+ }
+ public int getIp() {
+ return ip;
+ }
+ public int getMask() {
+ return mask;
+ }
+ }