[Emu] openTAM: FlowStatisticManager, DistributedFlowStatisticStore, get-flow-stats CLI Implementation and NewAdaptiveFlowStatsCollector update and typo
- GetFlowStatistics.java
.Fixed function name typo: immediateLoad()
- SummaryFlowEntryWithLoad.java
.Added javadoc
- TypedFlowEntryWithLoad.java
.Added javadoc,
.and replace checknotnull and throw NullPointerException in typedPollInterval() at line 104
Change-Id: I23d2eaf234d0affeb5f927275148d9165c66c774
diff --git a/core/net/pom.xml b/core/net/pom.xml
index 9ea0007..c5d3126 100644
--- a/core/net/pom.xml
+++ b/core/net/pom.xml
@@ -52,6 +52,20 @@
<dependency>
<groupId>org.onosproject</groupId>
+ <version>${project.version}</version>
+ <artifactId>onos-cli</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.onosproject</groupId>
+ <artifactId>onos-cli</artifactId>
+ <version>${project.version}</version>
+ <classifier>tests</classifier>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.onosproject</groupId>
<artifactId>onos-core-common</artifactId>
<version>${project.version}</version>
<classifier>tests</classifier>
diff --git a/core/net/src/main/java/org/onosproject/net/statistic/impl/FlowStatisticManager.java b/core/net/src/main/java/org/onosproject/net/statistic/impl/FlowStatisticManager.java
new file mode 100644
index 0000000..6515ef3
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/statistic/impl/FlowStatisticManager.java
@@ -0,0 +1,634 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.statistic.impl;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Predicate;
+import com.google.common.collect.ImmutableSet;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.cli.Comparators;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Device;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.flow.DefaultTypedFlowEntry;
+import org.onosproject.net.flow.FlowEntry;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.FlowRuleEvent;
+import org.onosproject.net.flow.FlowRuleListener;
+import org.onosproject.net.flow.FlowRuleService;
+import org.onosproject.net.flow.TypedStoredFlowEntry;
+import org.onosproject.net.flow.instructions.Instruction;
+import org.onosproject.net.statistic.DefaultLoad;
+import org.onosproject.net.statistic.FlowStatisticService;
+import org.onosproject.net.statistic.Load;
+import org.onosproject.net.statistic.FlowStatisticStore;
+import org.onosproject.net.statistic.SummaryFlowEntryWithLoad;
+import org.onosproject.net.statistic.TypedFlowEntryWithLoad;
+
+import org.slf4j.Logger;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.stream.Collectors;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.security.AppGuard.checkPermission;
+import static org.slf4j.LoggerFactory.getLogger;
+import static org.onosproject.security.AppPermission.Type.*;
+
+/**
+ * Provides an implementation of the Flow Statistic Service.
+ */
+@Component(immediate = true, enabled = true)
+@Service
+public class FlowStatisticManager implements FlowStatisticService {
+ private final Logger log = getLogger(getClass());
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected FlowRuleService flowRuleService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected FlowStatisticStore flowStatisticStore;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected DeviceService deviceService;
+
+ private final InternalFlowRuleStatsListener frListener = new InternalFlowRuleStatsListener();
+
+ @Activate
+ public void activate() {
+ flowRuleService.addListener(frListener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ flowRuleService.removeListener(frListener);
+ log.info("Stopped");
+ }
+
+ @Override
+ public Map<ConnectPoint, SummaryFlowEntryWithLoad> loadSummary(Device device) {
+ checkPermission(STATISTIC_READ);
+
+ Map<ConnectPoint, SummaryFlowEntryWithLoad> summaryLoad = new TreeMap<>(Comparators.CONNECT_POINT_COMPARATOR);
+
+ if (device == null) {
+ return summaryLoad;
+ }
+
+ List<Port> ports = new ArrayList<>(deviceService.getPorts(device.id()));
+
+ for (Port port : ports) {
+ ConnectPoint cp = new ConnectPoint(device.id(), port.number());
+ SummaryFlowEntryWithLoad sfe = loadSummaryPortInternal(cp);
+ summaryLoad.put(cp, sfe);
+ }
+
+ return summaryLoad;
+ }
+
+ @Override
+ public SummaryFlowEntryWithLoad loadSummary(Device device, PortNumber pNumber) {
+ checkPermission(STATISTIC_READ);
+
+ ConnectPoint cp = new ConnectPoint(device.id(), pNumber);
+ return loadSummaryPortInternal(cp);
+ }
+
+ @Override
+ public Map<ConnectPoint, List<TypedFlowEntryWithLoad>> loadAllByType(Device device,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType) {
+ checkPermission(STATISTIC_READ);
+
+ Map<ConnectPoint, List<TypedFlowEntryWithLoad>> allLoad = new TreeMap<>(Comparators.CONNECT_POINT_COMPARATOR);
+
+ if (device == null) {
+ return allLoad;
+ }
+
+ List<Port> ports = new ArrayList<>(deviceService.getPorts(device.id()));
+
+ for (Port port : ports) {
+ ConnectPoint cp = new ConnectPoint(device.id(), port.number());
+ List<TypedFlowEntryWithLoad> tfel = loadAllPortInternal(cp, liveType, instType);
+ allLoad.put(cp, tfel);
+ }
+
+ return allLoad;
+ }
+
+ @Override
+ public List<TypedFlowEntryWithLoad> loadAllByType(Device device, PortNumber pNumber,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType) {
+ checkPermission(STATISTIC_READ);
+
+ ConnectPoint cp = new ConnectPoint(device.id(), pNumber);
+ return loadAllPortInternal(cp, liveType, instType);
+ }
+
+ @Override
+ public Map<ConnectPoint, List<TypedFlowEntryWithLoad>> loadTopnByType(Device device,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType,
+ int topn) {
+ checkPermission(STATISTIC_READ);
+
+ Map<ConnectPoint, List<TypedFlowEntryWithLoad>> allLoad = new TreeMap<>(Comparators.CONNECT_POINT_COMPARATOR);
+
+ if (device == null) {
+ return allLoad;
+ }
+
+ List<Port> ports = new ArrayList<>(deviceService.getPorts(device.id()));
+
+ for (Port port : ports) {
+ ConnectPoint cp = new ConnectPoint(device.id(), port.number());
+ List<TypedFlowEntryWithLoad> tfel = loadTopnPortInternal(cp, liveType, instType, topn);
+ allLoad.put(cp, tfel);
+ }
+
+ return allLoad;
+ }
+
+ @Override
+ public List<TypedFlowEntryWithLoad> loadTopnByType(Device device, PortNumber pNumber,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType,
+ int topn) {
+ checkPermission(STATISTIC_READ);
+
+ ConnectPoint cp = new ConnectPoint(device.id(), pNumber);
+ return loadTopnPortInternal(cp, liveType, instType, topn);
+ }
+
+ private SummaryFlowEntryWithLoad loadSummaryPortInternal(ConnectPoint cp) {
+ checkPermission(STATISTIC_READ);
+
+ Set<FlowEntry> currentStats;
+ Set<FlowEntry> previousStats;
+
+ TypedStatistics typedStatistics;
+ synchronized (flowStatisticStore) {
+ currentStats = flowStatisticStore.getCurrentFlowStatistic(cp);
+ if (currentStats == null) {
+ return new SummaryFlowEntryWithLoad(cp, new DefaultLoad());
+ }
+ previousStats = flowStatisticStore.getPreviousFlowStatistic(cp);
+ if (previousStats == null) {
+ return new SummaryFlowEntryWithLoad(cp, new DefaultLoad());
+ }
+ // copy to local flow entry
+ typedStatistics = new TypedStatistics(currentStats, previousStats);
+
+ // Check for validity of this stats data
+ checkLoadValidity(currentStats, previousStats);
+ }
+
+ // current and previous set is not empty!
+ Set<FlowEntry> currentSet = typedStatistics.current();
+ Set<FlowEntry> previousSet = typedStatistics.previous();
+ Load totalLoad = new DefaultLoad(aggregateBytesSet(currentSet), aggregateBytesSet(previousSet),
+ TypedFlowEntryWithLoad.avgPollInterval());
+
+ Map<FlowRule, TypedStoredFlowEntry> currentMap;
+ Map<FlowRule, TypedStoredFlowEntry> previousMap;
+
+ currentMap = typedStatistics.currentImmediate();
+ previousMap = typedStatistics.previousImmediate();
+ Load immediateLoad = new DefaultLoad(aggregateBytesMap(currentMap), aggregateBytesMap(previousMap),
+ TypedFlowEntryWithLoad.shortPollInterval());
+
+ currentMap = typedStatistics.currentShort();
+ previousMap = typedStatistics.previousShort();
+ Load shortLoad = new DefaultLoad(aggregateBytesMap(currentMap), aggregateBytesMap(previousMap),
+ TypedFlowEntryWithLoad.shortPollInterval());
+
+ currentMap = typedStatistics.currentMid();
+ previousMap = typedStatistics.previousMid();
+ Load midLoad = new DefaultLoad(aggregateBytesMap(currentMap), aggregateBytesMap(previousMap),
+ TypedFlowEntryWithLoad.midPollInterval());
+
+ currentMap = typedStatistics.currentLong();
+ previousMap = typedStatistics.previousLong();
+ Load longLoad = new DefaultLoad(aggregateBytesMap(currentMap), aggregateBytesMap(previousMap),
+ TypedFlowEntryWithLoad.longPollInterval());
+
+ currentMap = typedStatistics.currentUnknown();
+ previousMap = typedStatistics.previousUnknown();
+ Load unknownLoad = new DefaultLoad(aggregateBytesMap(currentMap), aggregateBytesMap(previousMap),
+ TypedFlowEntryWithLoad.avgPollInterval());
+
+ return new SummaryFlowEntryWithLoad(cp, totalLoad, immediateLoad, shortLoad, midLoad, longLoad, unknownLoad);
+ }
+
+ private List<TypedFlowEntryWithLoad> loadAllPortInternal(ConnectPoint cp,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType) {
+ checkPermission(STATISTIC_READ);
+
+ List<TypedFlowEntryWithLoad> retTFEL = new ArrayList<>();
+
+ Set<FlowEntry> currentStats;
+ Set<FlowEntry> previousStats;
+
+ TypedStatistics typedStatistics;
+ synchronized (flowStatisticStore) {
+ currentStats = flowStatisticStore.getCurrentFlowStatistic(cp);
+ if (currentStats == null) {
+ return retTFEL;
+ }
+ previousStats = flowStatisticStore.getPreviousFlowStatistic(cp);
+ if (previousStats == null) {
+ return retTFEL;
+ }
+ // copy to local flow entry set
+ typedStatistics = new TypedStatistics(currentStats, previousStats);
+
+ // Check for validity of this stats data
+ checkLoadValidity(currentStats, previousStats);
+ }
+
+ // current and previous set is not empty!
+ boolean isAllLiveType = (liveType == null ? true : false); // null is all live type
+ boolean isAllInstType = (instType == null ? true : false); // null is all inst type
+
+ Map<FlowRule, TypedStoredFlowEntry> currentMap;
+ Map<FlowRule, TypedStoredFlowEntry> previousMap;
+
+ if (isAllLiveType || liveType == TypedStoredFlowEntry.FlowLiveType.IMMEDIATE_FLOW) {
+ currentMap = typedStatistics.currentImmediate();
+ previousMap = typedStatistics.previousImmediate();
+
+ List<TypedFlowEntryWithLoad> fel = typedFlowEntryLoadByInstInternal(cp, currentMap, previousMap,
+ isAllInstType, instType, TypedFlowEntryWithLoad.shortPollInterval());
+ if (fel.size() > 0) {
+ retTFEL.addAll(fel);
+ }
+ }
+
+ if (isAllLiveType || liveType == TypedStoredFlowEntry.FlowLiveType.SHORT_FLOW) {
+ currentMap = typedStatistics.currentShort();
+ previousMap = typedStatistics.previousShort();
+
+ List<TypedFlowEntryWithLoad> fel = typedFlowEntryLoadByInstInternal(cp, currentMap, previousMap,
+ isAllInstType, instType, TypedFlowEntryWithLoad.shortPollInterval());
+ if (fel.size() > 0) {
+ retTFEL.addAll(fel);
+ }
+ }
+
+ if (isAllLiveType || liveType == TypedStoredFlowEntry.FlowLiveType.MID_FLOW) {
+ currentMap = typedStatistics.currentMid();
+ previousMap = typedStatistics.previousMid();
+
+ List<TypedFlowEntryWithLoad> fel = typedFlowEntryLoadByInstInternal(cp, currentMap, previousMap,
+ isAllInstType, instType, TypedFlowEntryWithLoad.midPollInterval());
+ if (fel.size() > 0) {
+ retTFEL.addAll(fel);
+ }
+ }
+
+ if (isAllLiveType || liveType == TypedStoredFlowEntry.FlowLiveType.LONG_FLOW) {
+ currentMap = typedStatistics.currentLong();
+ previousMap = typedStatistics.previousLong();
+
+ List<TypedFlowEntryWithLoad> fel = typedFlowEntryLoadByInstInternal(cp, currentMap, previousMap,
+ isAllInstType, instType, TypedFlowEntryWithLoad.longPollInterval());
+ if (fel.size() > 0) {
+ retTFEL.addAll(fel);
+ }
+ }
+
+ if (isAllLiveType || liveType == TypedStoredFlowEntry.FlowLiveType.UNKNOWN_FLOW) {
+ currentMap = typedStatistics.currentUnknown();
+ previousMap = typedStatistics.previousUnknown();
+
+ List<TypedFlowEntryWithLoad> fel = typedFlowEntryLoadByInstInternal(cp, currentMap, previousMap,
+ isAllInstType, instType, TypedFlowEntryWithLoad.avgPollInterval());
+ if (fel.size() > 0) {
+ retTFEL.addAll(fel);
+ }
+ }
+
+ return retTFEL;
+ }
+
+ private List<TypedFlowEntryWithLoad> typedFlowEntryLoadByInstInternal(ConnectPoint cp,
+ Map<FlowRule, TypedStoredFlowEntry> currentMap,
+ Map<FlowRule, TypedStoredFlowEntry> previousMap,
+ boolean isAllInstType,
+ Instruction.Type instType,
+ int liveTypePollInterval) {
+ List<TypedFlowEntryWithLoad> fel = new ArrayList<>();
+
+ for (TypedStoredFlowEntry tfe : currentMap.values()) {
+ if (isAllInstType ||
+ tfe.treatment().allInstructions().stream().
+ filter(i -> i.type() == instType).
+ findAny().isPresent()) {
+ long currentBytes = tfe.bytes();
+ long previousBytes = previousMap.getOrDefault(tfe, new DefaultTypedFlowEntry((FlowRule) tfe)).bytes();
+ Load fLoad = new DefaultLoad(currentBytes, previousBytes, liveTypePollInterval);
+ fel.add(new TypedFlowEntryWithLoad(cp, tfe, fLoad));
+ }
+ }
+
+ return fel;
+ }
+
+ private List<TypedFlowEntryWithLoad> loadTopnPortInternal(ConnectPoint cp,
+ TypedStoredFlowEntry.FlowLiveType liveType,
+ Instruction.Type instType,
+ int topn) {
+ List<TypedFlowEntryWithLoad> fel = loadAllPortInternal(cp, liveType, instType);
+
+ // Sort with descending order of load
+ List<TypedFlowEntryWithLoad> tfel =
+ fel.stream().sorted(Comparators.TYPEFLOWENTRY_WITHLOAD_COMPARATOR).
+ limit(topn).collect(Collectors.toList());
+
+ return tfel;
+ }
+
+ private long aggregateBytesSet(Set<FlowEntry> setFE) {
+ return setFE.stream().mapToLong(FlowEntry::bytes).sum();
+ }
+
+ private long aggregateBytesMap(Map<FlowRule, TypedStoredFlowEntry> mapFE) {
+ return mapFE.values().stream().mapToLong(FlowEntry::bytes).sum();
+ }
+
+ /**
+ * Internal data class holding two set of typed flow entries.
+ */
+ private static class TypedStatistics {
+ private final ImmutableSet<FlowEntry> currentAll;
+ private final ImmutableSet<FlowEntry> previousAll;
+
+ private final Map<FlowRule, TypedStoredFlowEntry> currentImmediate = new HashMap<>();
+ private final Map<FlowRule, TypedStoredFlowEntry> previousImmediate = new HashMap<>();
+
+ private final Map<FlowRule, TypedStoredFlowEntry> currentShort = new HashMap<>();
+ private final Map<FlowRule, TypedStoredFlowEntry> previousShort = new HashMap<>();
+
+ private final Map<FlowRule, TypedStoredFlowEntry> currentMid = new HashMap<>();
+ private final Map<FlowRule, TypedStoredFlowEntry> previousMid = new HashMap<>();
+
+ private final Map<FlowRule, TypedStoredFlowEntry> currentLong = new HashMap<>();
+ private final Map<FlowRule, TypedStoredFlowEntry> previousLong = new HashMap<>();
+
+ private final Map<FlowRule, TypedStoredFlowEntry> currentUnknown = new HashMap<>();
+ private final Map<FlowRule, TypedStoredFlowEntry> previousUnknown = new HashMap<>();
+
+ public TypedStatistics(Set<FlowEntry> current, Set<FlowEntry> previous) {
+ this.currentAll = ImmutableSet.copyOf(checkNotNull(current));
+ this.previousAll = ImmutableSet.copyOf(checkNotNull(previous));
+
+ currentAll.forEach(fe -> {
+ TypedStoredFlowEntry tfe = TypedFlowEntryWithLoad.newTypedStoredFlowEntry(fe);
+
+ switch (tfe.flowLiveType()) {
+ case IMMEDIATE_FLOW:
+ currentImmediate.put(fe, tfe);
+ break;
+ case SHORT_FLOW:
+ currentShort.put(fe, tfe);
+ break;
+ case MID_FLOW:
+ currentMid.put(fe, tfe);
+ break;
+ case LONG_FLOW:
+ currentLong.put(fe, tfe);
+ break;
+ default:
+ currentUnknown.put(fe, tfe);
+ break;
+ }
+ });
+
+ previousAll.forEach(fe -> {
+ TypedStoredFlowEntry tfe = TypedFlowEntryWithLoad.newTypedStoredFlowEntry(fe);
+
+ switch (tfe.flowLiveType()) {
+ case IMMEDIATE_FLOW:
+ if (currentImmediate.containsKey(fe)) {
+ previousImmediate.put(fe, tfe);
+ } else if (currentShort.containsKey(fe)) {
+ previousShort.put(fe, tfe);
+ } else if (currentMid.containsKey(fe)) {
+ previousMid.put(fe, tfe);
+ } else if (currentLong.containsKey(fe)) {
+ previousLong.put(fe, tfe);
+ } else {
+ previousUnknown.put(fe, tfe);
+ }
+ break;
+ case SHORT_FLOW:
+ if (currentShort.containsKey(fe)) {
+ previousShort.put(fe, tfe);
+ } else if (currentMid.containsKey(fe)) {
+ previousMid.put(fe, tfe);
+ } else if (currentLong.containsKey(fe)) {
+ previousLong.put(fe, tfe);
+ } else {
+ previousUnknown.put(fe, tfe);
+ }
+ break;
+ case MID_FLOW:
+ if (currentMid.containsKey(fe)) {
+ previousMid.put(fe, tfe);
+ } else if (currentLong.containsKey(fe)) {
+ previousLong.put(fe, tfe);
+ } else {
+ previousUnknown.put(fe, tfe);
+ }
+ break;
+ case LONG_FLOW:
+ if (currentLong.containsKey(fe)) {
+ previousLong.put(fe, tfe);
+ } else {
+ previousUnknown.put(fe, tfe);
+ }
+ break;
+ default:
+ previousUnknown.put(fe, tfe);
+ break;
+ }
+ });
+ }
+
+ /**
+ * Returns flow entries as the current value.
+ *
+ * @return flow entries as the current value
+ */
+ public ImmutableSet<FlowEntry> current() {
+ return currentAll;
+ }
+
+ /**
+ * Returns flow entries as the previous value.
+ *
+ * @return flow entries as the previous value
+ */
+ public ImmutableSet<FlowEntry> previous() {
+ return previousAll;
+ }
+
+ public Map<FlowRule, TypedStoredFlowEntry> currentImmediate() {
+ return currentImmediate;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> previousImmediate() {
+ return previousImmediate;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> currentShort() {
+ return currentShort;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> previousShort() {
+ return previousShort;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> currentMid() {
+ return currentMid;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> previousMid() {
+ return previousMid;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> currentLong() {
+ return currentLong;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> previousLong() {
+ return previousLong;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> currentUnknown() {
+ return currentUnknown;
+ }
+ public Map<FlowRule, TypedStoredFlowEntry> previousUnknown() {
+ return previousUnknown;
+ }
+
+ /**
+ * Validates values are not empty.
+ *
+ * @return false if either of the sets is empty. Otherwise, true.
+ */
+ public boolean isValid() {
+ return !(currentAll.isEmpty() || previousAll.isEmpty());
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(currentAll, previousAll);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof TypedStatistics)) {
+ return false;
+ }
+ final TypedStatistics other = (TypedStatistics) obj;
+ return Objects.equals(this.currentAll, other.currentAll) &&
+ Objects.equals(this.previousAll, other.previousAll);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(this)
+ .add("current", currentAll)
+ .add("previous", previousAll)
+ .toString();
+ }
+ }
+
+ private void checkLoadValidity(Set<FlowEntry> current, Set<FlowEntry> previous) {
+ current.stream().forEach(c -> {
+ FlowEntry f = previous.stream().filter(p -> c.equals(p)).
+ findAny().orElse(null);
+ if (f != null && c.bytes() < f.bytes()) {
+ log.debug("FlowStatisticManager:checkLoadValidity():" +
+ "Error: " + c + " :Previous bytes=" + f.bytes() +
+ " is larger than current bytes=" + c.bytes() + " !!!");
+ }
+ });
+
+ }
+
+ /**
+ * Creates a predicate that checks the instruction type of a flow entry is the same as
+ * the specified instruction type.
+ *
+ * @param instType instruction type to be checked
+ * @return predicate
+ */
+ private static Predicate<FlowEntry> hasInstructionType(Instruction.Type instType) {
+ return new Predicate<FlowEntry>() {
+ @Override
+ public boolean apply(FlowEntry flowEntry) {
+ List<Instruction> allInstructions = flowEntry.treatment().allInstructions();
+
+ return allInstructions.stream().filter(i -> i.type() == instType).findAny().isPresent();
+ }
+ };
+ }
+
+ /**
+ * Internal flow rule event listener for FlowStatisticManager.
+ */
+ private class InternalFlowRuleStatsListener implements FlowRuleListener {
+
+ @Override
+ public void event(FlowRuleEvent event) {
+ FlowRule rule = event.subject();
+ switch (event.type()) {
+ case RULE_ADDED:
+ if (rule instanceof FlowEntry) {
+ flowStatisticStore.addFlowStatistic((FlowEntry) rule);
+ }
+ break;
+ case RULE_UPDATED:
+ flowStatisticStore.updateFlowStatistic((FlowEntry) rule);
+ break;
+ case RULE_ADD_REQUESTED:
+ break;
+ case RULE_REMOVE_REQUESTED:
+ break;
+ case RULE_REMOVED:
+ flowStatisticStore.removeFlowStatistic(rule);
+ break;
+ default:
+ log.warn("Unknown flow rule event {}", event);
+ }
+ }
+ }
+}