| package net.onrc.onos.core.intent.runtime; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| import net.floodlightcontroller.core.module.FloodlightModuleException; |
| import net.floodlightcontroller.core.module.IFloodlightModule; |
| import net.floodlightcontroller.core.module.IFloodlightService; |
| import net.floodlightcontroller.restserver.IRestApiService; |
| import net.floodlightcontroller.util.MACAddress; |
| import net.onrc.onos.api.intent.ApplicationIntent; |
| import net.onrc.onos.core.datagrid.IDatagridService; |
| import net.onrc.onos.core.datagrid.IEventChannel; |
| import net.onrc.onos.core.datagrid.IEventChannelListener; |
| import net.onrc.onos.core.intent.ConstrainedShortestPathIntent; |
| import net.onrc.onos.core.intent.Intent; |
| import net.onrc.onos.core.intent.Intent.IntentState; |
| import net.onrc.onos.core.intent.IntentMap; |
| import net.onrc.onos.core.intent.IntentMap.ChangedEvent; |
| import net.onrc.onos.core.intent.IntentMap.ChangedListener; |
| import net.onrc.onos.core.intent.IntentOperation; |
| import net.onrc.onos.core.intent.IntentOperation.Operator; |
| import net.onrc.onos.core.intent.IntentOperationList; |
| import net.onrc.onos.core.intent.PathIntent; |
| import net.onrc.onos.core.intent.PathIntentMap; |
| import net.onrc.onos.core.intent.ShortestPathIntent; |
| import net.onrc.onos.core.intent.runtime.web.IntentWebRoutable; |
| import net.onrc.onos.core.metrics.OnosMetrics; |
| import net.onrc.onos.core.metrics.OnosMetrics.MetricsComponent; |
| import net.onrc.onos.core.metrics.OnosMetrics.MetricsFeature; |
| import net.onrc.onos.core.registry.IControllerRegistryService; |
| import net.onrc.onos.core.topology.ITopologyListener; |
| import net.onrc.onos.core.topology.ITopologyService; |
| import net.onrc.onos.core.topology.LinkEvent; |
| import net.onrc.onos.core.topology.PortEvent; |
| import net.onrc.onos.core.topology.SwitchEvent; |
| import net.onrc.onos.core.topology.TopologyEvents; |
| import net.onrc.onos.core.util.Dpid; |
| import net.onrc.onos.core.util.LinkTuple; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.codahale.metrics.Gauge; |
| import com.codahale.metrics.Meter; |
| |
| /** |
| * The PathCalcRuntimeModule contains the PathCalcRuntime and PersistIntent. |
| * <p> |
| * It is responsible for converting operations for application level intents |
| * into operations for path level intents and send the converted operations |
| * to PlanCalcRuntimeModule in order to calculate flow entries and install them. |
| */ |
| public class PathCalcRuntimeModule implements IFloodlightModule, |
| IPathCalcRuntimeService, |
| ITopologyListener, |
| IEventChannelListener<Long, IntentStateList> { |
| |
| /** |
| * Logging object for performance measurement. |
| * TODO: merge this into measurement framework |
| */ |
| static class PerfLog { |
| private String step; |
| private long time; |
| |
| public PerfLog(String step) { |
| this.step = step; |
| this.time = System.nanoTime(); |
| } |
| |
| public void logThis() { |
| log.debug("Time:{}, Step:{}", time, step); |
| } |
| } |
| |
| /** |
| * Formatted logger for performance measurement. |
| * TODO: merge this into measurement framework |
| */ |
| static class PerfLogger { |
| private LinkedList<PerfLog> logData = new LinkedList<>(); |
| |
| public PerfLogger(String logPhase) { |
| log("start_" + logPhase); |
| } |
| |
| public void log(String step) { |
| logData.add(new PerfLog(step)); |
| } |
| |
| public void flushLog() { |
| log("finish"); |
| for (PerfLog perfLog : logData) { |
| perfLog.logThis(); |
| } |
| logData.clear(); |
| } |
| } |
| |
| /** |
| * A class to track the status of high-level intents. |
| * Currently, it is used for monitoring and measurement purposes. |
| */ |
| private class HighLevelIntentsTracker implements ChangedListener { |
| @Override |
| public void intentsChange(LinkedList<ChangedEvent> events) { |
| // |
| // Process the events one-by-one and collect measurements. |
| // |
| for (ChangedEvent event : events) { |
| log.debug("HighLevelIntentsTracker: Intent ID {}, eventType {}, intentState {}", |
| event.intent.getId(), event.eventType, |
| event.intent.getState()); |
| |
| // |
| // Update the metrics |
| // |
| switch (event.eventType) { |
| case ADDED: |
| break; |
| case REMOVED: |
| break; |
| case STATE_CHANGED: |
| IntentState state = event.intent.getState(); |
| switch (state) { |
| case INST_REQ: |
| break; |
| case INST_ACK: |
| intentAddProcessingRate.mark(1); |
| intentAddEndTimestampEpochMs = System.currentTimeMillis(); |
| break; |
| case INST_NACK: |
| break; |
| case DEL_REQ: |
| break; |
| case DEL_ACK: |
| intentRemoveProcessingRate.mark(1); |
| intentRemoveEndTimestampEpochMs = System.currentTimeMillis(); |
| break; |
| case DEL_PENDING: |
| break; |
| case REROUTE_REQ: |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |
| |
| /** |
| * A class to track the deletion of intents and purge them as appropriate. |
| */ |
| private class DeleteIntentsTracker implements ChangedListener { |
| @Override |
| public void intentsChange(LinkedList<ChangedEvent> events) { |
| List<String> removeIntentIds = new LinkedList<String>(); |
| List<String> removePathIds = new LinkedList<String>(); |
| |
| // |
| // Process the events one-by-one and collect the Intent IDs of |
| // those intents that should be purged. |
| // |
| for (ChangedEvent event : events) { |
| log.debug("DeleteIntentsTracker: Intent ID {}, eventType {}", |
| event.intent.getId(), event.eventType); |
| PathIntent pathIntent = (PathIntent) pathIntents.getIntent(event.intent.getId()); |
| if (pathIntent == null) { |
| continue; |
| } |
| |
| // |
| // Test whether the new Intent state allows the Intent |
| // to be purged. |
| // |
| boolean shouldPurge = false; |
| switch (event.eventType) { |
| case ADDED: |
| break; |
| case REMOVED: |
| break; |
| case STATE_CHANGED: |
| IntentState state = pathIntent.getState(); |
| switch (state) { |
| case INST_REQ: |
| break; |
| case INST_ACK: |
| break; |
| case INST_NACK: |
| shouldPurge = true; |
| break; |
| case DEL_REQ: |
| break; |
| case DEL_ACK: |
| shouldPurge = true; |
| break; |
| case DEL_PENDING: |
| break; |
| case REROUTE_REQ: |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (shouldPurge) { |
| removePathIds.add(pathIntent.getId()); |
| Intent parentIntent = pathIntent.getParentIntent(); |
| if (parentIntent != null) { |
| // |
| // Remove the High-level Intent only if it was |
| // explicitly deleted by the user via the API. |
| // |
| String intentId = parentIntent.getId(); |
| if (removedApplicationIntentIds.contains(intentId)) { |
| removeIntentIds.add(intentId); |
| removedApplicationIntentIds.remove(intentId); |
| } |
| } |
| } |
| } |
| |
| // Purge the intents |
| if (!removeIntentIds.isEmpty()) { |
| highLevelIntents.purge(removeIntentIds); |
| } |
| if (!removePathIds.isEmpty()) { |
| pathIntents.purge(removePathIds); |
| } |
| } |
| } |
| |
| private PathCalcRuntime runtime; |
| private IDatagridService datagridService; |
| private ITopologyService topologyService; |
| private IntentMap highLevelIntents; |
| private PathIntentMap pathIntents; |
| private IControllerRegistryService controllerRegistry; |
| private PersistIntent persistIntent; |
| private IRestApiService restApi; |
| |
| private IEventChannel<Long, IntentOperationList> opEventChannel; |
| private final ReentrantLock lock = new ReentrantLock(true); |
| private static final String INTENT_OP_EVENT_CHANNEL_NAME = "onos.pathintent"; |
| private static final String INTENT_STATE_EVENT_CHANNEL_NAME = "onos.pathintent_state"; |
| private static final Logger log = LoggerFactory.getLogger(PathCalcRuntimeModule.class); |
| |
| private HashSet<LinkTuple> unmatchedLinkEvents = new HashSet<>(); |
| private ConcurrentMap<String, Set<Long>> intentInstalledMap = new ConcurrentHashMap<String, Set<Long>>(); |
| private ConcurrentMap<String, Intent> staleIntents = new ConcurrentHashMap<String, Intent>(); |
| private DeleteIntentsTracker deleteIntentsTracker = new DeleteIntentsTracker(); |
| private Set<String> removedApplicationIntentIds = new HashSet<String>(); |
| private HighLevelIntentsTracker highLevelIntentsTracker = new HighLevelIntentsTracker(); |
| |
| // |
| // Metrics |
| // |
| private static final MetricsComponent METRICS_COMPONENT = |
| OnosMetrics.registerComponent("Intents"); |
| private static final MetricsFeature METRICS_FEATURE_ADD_OPERATION = |
| METRICS_COMPONENT.registerFeature("AddOperation"); |
| private static final MetricsFeature METRICS_FEATURE_REMOVE_OPERATION = |
| METRICS_COMPONENT.registerFeature("RemoveOperation"); |
| // |
| // Timestamp of the incoming Add Intent API operation (ms from the Epoch) |
| private volatile long intentAddBeginTimestampEpochMs = 0; |
| private final Gauge<Long> gaugeIntentAddBeginTimestampEpochMs = |
| OnosMetrics.registerMetric(METRICS_COMPONENT, |
| METRICS_FEATURE_ADD_OPERATION, |
| "BeginOperationTimestamp.EpochMs", |
| new Gauge<Long>() { |
| @Override |
| public Long getValue() { |
| return intentAddBeginTimestampEpochMs; |
| } |
| }); |
| // Timestamp of the Add Intent operation completion (ms from the Epoch) |
| private volatile long intentAddEndTimestampEpochMs = 0; |
| private final Gauge<Long> gaugeIntentAddEndTimestampEpochMs = |
| OnosMetrics.registerMetric(METRICS_COMPONENT, |
| METRICS_FEATURE_ADD_OPERATION, |
| "EndOperationTimestamp.EpochMs", |
| new Gauge<Long>() { |
| @Override |
| public Long getValue() { |
| return intentAddEndTimestampEpochMs; |
| } |
| }); |
| // Timestamp of the incoming Remove Intent API operation (ms from the Epoch) |
| private volatile long intentRemoveBeginTimestampEpochMs = 0; |
| private final Gauge<Long> gaugeIntentRemoveBeginTimestampEpochMs = |
| OnosMetrics.registerMetric(METRICS_COMPONENT, |
| METRICS_FEATURE_REMOVE_OPERATION, |
| "BeginOperationTimestamp.EpochMs", |
| new Gauge<Long>() { |
| @Override |
| public Long getValue() { |
| return intentRemoveBeginTimestampEpochMs; |
| } |
| }); |
| // Timestamp of the Remove Intent operation completion (ms from the Epoch) |
| private volatile long intentRemoveEndTimestampEpochMs = 0; |
| private final Gauge<Long> gaugeIntentRemoveEndTimestampEpochMs = |
| OnosMetrics.registerMetric(METRICS_COMPONENT, |
| METRICS_FEATURE_REMOVE_OPERATION, |
| "EndOperationTimestamp.EpochMs", |
| new Gauge<Long>() { |
| @Override |
| public Long getValue() { |
| return intentRemoveEndTimestampEpochMs; |
| } |
| }); |
| // |
| // Rate of the incoming Add Intent API operations |
| private final Meter intentAddIncomingRate = |
| OnosMetrics.createMeter(METRICS_COMPONENT, |
| METRICS_FEATURE_ADD_OPERATION, |
| "IncomingRate"); |
| // Rate of processing the Add Intent operations |
| private final Meter intentAddProcessingRate = |
| OnosMetrics.createMeter(METRICS_COMPONENT, |
| METRICS_FEATURE_ADD_OPERATION, |
| "ProcessingRate"); |
| // Rate of the incoming Remove Intent API operations |
| private final Meter intentRemoveIncomingRate = |
| OnosMetrics.createMeter(METRICS_COMPONENT, |
| METRICS_FEATURE_REMOVE_OPERATION, |
| "IncomingRate"); |
| // Rate of processing the Remove Intent operations |
| private final Meter intentRemoveProcessingRate = |
| OnosMetrics.createMeter(METRICS_COMPONENT, |
| METRICS_FEATURE_REMOVE_OPERATION, |
| "ProcessingRate"); |
| |
| // ================================================================================ |
| // private methods |
| // ================================================================================ |
| |
| /** |
| * Creates operations (IntentOperationList) for Application-level |
| * intents that should be rerouted because of topology change, |
| * and execute the created operations. |
| * |
| * @param oldPaths a list of invalid path intents (which should be rerouted) |
| */ |
| private void reroutePaths(Collection<Intent> oldPaths) { |
| if (oldPaths == null || oldPaths.isEmpty()) { |
| return; |
| } |
| |
| IntentOperationList reroutingOperation = new IntentOperationList(); |
| for (Intent intent : oldPaths) { |
| PathIntent pathIntent = (PathIntent) intent; |
| if (pathIntent.isPathFrozen()) { |
| continue; |
| } |
| Intent parentIntent = pathIntent.getParentIntent(); |
| if (parentIntent == null) { |
| continue; |
| } |
| if (pathIntent.getState().equals(IntentState.INST_ACK)) { |
| if (!reroutingOperation.contains(parentIntent)) { |
| // reroute now |
| reroutingOperation.add(Operator.ADD, parentIntent); |
| } |
| } else if (pathIntent.getState().equals(IntentState.INST_REQ)) { |
| // reroute after the completion of the current execution |
| staleIntents.put(parentIntent.getId(), parentIntent); |
| log.debug("pending reroute execution for intent ID:{}", parentIntent.getId()); |
| } |
| } |
| executeIntentOperations(reroutingOperation); |
| } |
| |
| /** |
| * Checks whether the entire path's flow entries are installed or not. |
| * |
| * @param pathIntent : The pathIntent to be checked |
| * @param installedDpids : The dpids installed on one ONOS instance |
| * @return The result of whether a pathIntent has been installed or not. |
| */ |
| private boolean isFlowInstalled(PathIntent pathIntent, Set<Long> installedDpids) { |
| String pathIntentId = pathIntent.getId(); |
| |
| if (intentInstalledMap.containsKey(pathIntentId)) { |
| if (!installedDpids.isEmpty()) { |
| intentInstalledMap.get(pathIntentId).addAll(installedDpids); |
| } |
| } else { |
| // This is the creation of an entry. |
| intentInstalledMap.put(pathIntentId, installedDpids); |
| } |
| |
| Set<Long> allSwitchesForPath = new HashSet<Long>(); |
| ShortestPathIntent spfIntent = (ShortestPathIntent) pathIntent.getParentIntent(); |
| |
| for (LinkEvent linkEvent : pathIntent.getPath()) { |
| long sw = linkEvent.getSrc().getDpid().value(); |
| allSwitchesForPath.add(sw); |
| } |
| allSwitchesForPath.add(spfIntent.getDstSwitchDpid()); |
| |
| if (log.isDebugEnabled()) { |
| log.debug("checking flow installation. ID:{}, dpids:{}, installed:{}", |
| pathIntentId, |
| allSwitchesForPath, |
| intentInstalledMap.get(pathIntentId)); |
| } |
| |
| if (allSwitchesForPath.equals(intentInstalledMap.get(pathIntentId))) { |
| intentInstalledMap.remove(pathIntentId); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Enumerates switch dpids along the specified path and inside the specified domain. |
| * |
| * @param pathIntent the path for enumeration |
| * @param domainSwitchDpids a set of the domain switch dpids |
| * @return a set of switch dpids along the specified path and inside the specified domain |
| */ |
| private Set<Long> calcInstalledDpids(PathIntent pathIntent, Set<Long> domainSwitchDpids) { |
| Set<Long> allSwitchesForPath = new HashSet<Long>(); |
| ShortestPathIntent spfIntent = (ShortestPathIntent) pathIntent.getParentIntent(); |
| |
| for (LinkEvent linkEvent : pathIntent.getPath()) { |
| long sw = linkEvent.getSrc().getDpid().value(); |
| |
| if (domainSwitchDpids.contains(sw)) { |
| allSwitchesForPath.add(sw); |
| } |
| } |
| |
| if (domainSwitchDpids.contains(spfIntent.getDstSwitchDpid())) { |
| allSwitchesForPath.add(spfIntent.getDstSwitchDpid()); |
| } |
| |
| if (log.isTraceEnabled()) { |
| log.trace("All switches for a path {}, domain switch dpids {}", allSwitchesForPath, domainSwitchDpids); |
| } |
| |
| return allSwitchesForPath; |
| } |
| |
| // ================================================================================ |
| // IFloodlightModule implementations |
| // ================================================================================ |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| Collection<Class<? extends IFloodlightService>> l = new ArrayList<>(1); |
| l.add(IPathCalcRuntimeService.class); |
| return l; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() { |
| Map<Class<? extends IFloodlightService>, IFloodlightService> m = new HashMap<>(); |
| m.put(IPathCalcRuntimeService.class, this); |
| return m; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Collection<Class<? extends IFloodlightService>> getModuleDependencies() { |
| Collection<Class<? extends IFloodlightService>> l = new ArrayList<>(2); |
| l.add(IDatagridService.class); |
| l.add(IRestApiService.class); |
| l.add(ITopologyService.class); |
| return l; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void init(FloodlightModuleContext context) throws FloodlightModuleException { |
| datagridService = context.getServiceImpl(IDatagridService.class); |
| topologyService = context.getServiceImpl(ITopologyService.class); |
| controllerRegistry = context.getServiceImpl(IControllerRegistryService.class); |
| restApi = context.getServiceImpl(IRestApiService.class); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void startUp(FloodlightModuleContext context) { |
| highLevelIntents = new IntentMap(); |
| highLevelIntents.addChangeListener(highLevelIntentsTracker); |
| runtime = new PathCalcRuntime(topologyService.getTopology()); |
| pathIntents = new PathIntentMap(); |
| pathIntents.addChangeListener(deleteIntentsTracker); |
| opEventChannel = datagridService.createChannel( |
| INTENT_OP_EVENT_CHANNEL_NAME, Long.class, IntentOperationList.class); |
| datagridService.addListener(INTENT_STATE_EVENT_CHANNEL_NAME, this, Long.class, IntentStateList.class); |
| topologyService.registerTopologyListener(this); |
| persistIntent = new PersistIntent(controllerRegistry); |
| restApi.addRestletRoutable(new IntentWebRoutable()); |
| } |
| |
| // ====================================================================== |
| // IPathCalcRuntimeService implementations |
| // ====================================================================== |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean addApplicationIntents( |
| final String appId, |
| Collection<ApplicationIntent> appIntents) { |
| // |
| // Update the metrics |
| // |
| if (!appIntents.isEmpty()) { |
| this.intentAddBeginTimestampEpochMs = System.currentTimeMillis(); |
| this.intentAddIncomingRate.mark(appIntents.size()); |
| } |
| |
| // |
| // Process all intents one-by-one |
| // |
| // TODO: The Intent Type should be enum instead of a string, |
| // and we should use a switch statement below to process the |
| // different type of intents. |
| // |
| IntentOperationList intentOperations = new IntentOperationList(); |
| for (ApplicationIntent appIntent : appIntents) { |
| String appIntentId = appId + ":" + appIntent.getIntentId(); |
| |
| IntentOperation.Operator operator = IntentOperation.Operator.ADD; |
| Dpid srcSwitchDpid = new Dpid(appIntent.getSrcSwitchDpid()); |
| Dpid dstSwitchDpid = new Dpid(appIntent.getDstSwitchDpid()); |
| |
| if (appIntent.getIntentType().equals("SHORTEST_PATH")) { |
| // |
| // Process Shortest-Path Intent |
| // |
| ShortestPathIntent spi = |
| new ShortestPathIntent(appIntentId, |
| srcSwitchDpid.value(), |
| appIntent.getSrcSwitchPort(), |
| MACAddress.valueOf(appIntent.getMatchSrcMac()).toLong(), |
| dstSwitchDpid.value(), |
| appIntent.getDstSwitchPort(), |
| MACAddress.valueOf(appIntent.getMatchDstMac()).toLong()); |
| spi.setPathFrozen(appIntent.isStaticPath()); |
| intentOperations.add(operator, spi); |
| } else if (appIntent.getIntentType().equals("CONSTRAINED_SHORTEST_PATH")) { |
| // |
| // Process Constrained Shortest-Path Intent |
| // |
| ConstrainedShortestPathIntent cspi = |
| new ConstrainedShortestPathIntent(appIntentId, |
| srcSwitchDpid.value(), |
| appIntent.getSrcSwitchPort(), |
| MACAddress.valueOf(appIntent.getMatchSrcMac()).toLong(), |
| dstSwitchDpid.value(), |
| appIntent.getDstSwitchPort(), |
| MACAddress.valueOf(appIntent.getMatchDstMac()).toLong(), |
| appIntent.getBandwidth()); |
| cspi.setPathFrozen(appIntent.isStaticPath()); |
| intentOperations.add(operator, cspi); |
| } else { |
| log.error("Unknown Application Intent Type: {}", |
| appIntent.getIntentType()); |
| return false; |
| } |
| removedApplicationIntentIds.remove(appIntentId); |
| } |
| // Apply the Intent Operations |
| executeIntentOperations(intentOperations); |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean removeApplicationIntents(final String appId, |
| Collection<String> intentIds) { |
| // |
| // Prepare the timestamp for metrics |
| // |
| long timestampEpochMs = System.currentTimeMillis(); |
| |
| IntentMap intentMap = getHighLevelIntents(); |
| List<String> removeIntentIds = new LinkedList<String>(); |
| |
| // |
| // Process all intents one-by-one |
| // |
| IntentOperationList operations = new IntentOperationList(); |
| for (String intentId : intentIds) { |
| String appIntentId = appId + ":" + intentId; |
| Intent intent = intentMap.getIntent(appIntentId); |
| if (intent != null) { |
| if (intent.getState() == IntentState.INST_NACK) { |
| // TODO: A hack to remove intents stuck in INST_NACK state |
| removeIntentIds.add(intent.getId()); |
| continue; |
| } |
| operations.add(IntentOperation.Operator.REMOVE, intent); |
| removedApplicationIntentIds.add(appIntentId); |
| } |
| } |
| |
| // |
| // Update the metrics |
| // |
| if (!operations.isEmpty()) { |
| this.intentRemoveBeginTimestampEpochMs = timestampEpochMs; |
| this.intentRemoveIncomingRate.mark(operations.size()); |
| } |
| |
| // |
| // Purge intents |
| // |
| if (!removeIntentIds.isEmpty()) { |
| |
| lock.lock(); // TODO optimize locking using smaller steps |
| try { |
| highLevelIntents.purge(removeIntentIds); |
| } finally { |
| lock.unlock(); |
| } |
| } |
| |
| executeIntentOperations(operations); |
| |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean removeAllApplicationIntents(final String appId) { |
| // |
| // Prepare the timestamp for metrics |
| // |
| long timestampEpochMs = System.currentTimeMillis(); |
| |
| Collection<Intent> allHighLevelIntents = |
| getHighLevelIntents().getAllIntents(); |
| |
| // |
| // Remove all intents |
| // |
| List<String> removeIntentIds = new LinkedList<String>(); |
| IntentOperationList operations = new IntentOperationList(); |
| for (Intent intent : allHighLevelIntents) { |
| if (intent.getState() == IntentState.INST_NACK) { |
| // TODO: A hack to remove intents stuck in INST_NACK state |
| removeIntentIds.add(intent.getId()); |
| continue; |
| } |
| operations.add(IntentOperation.Operator.REMOVE, intent); |
| removedApplicationIntentIds.add(intent.getId()); |
| } |
| |
| // |
| // Update the metrics |
| // |
| if (!operations.isEmpty()) { |
| this.intentRemoveBeginTimestampEpochMs = timestampEpochMs; |
| this.intentRemoveIncomingRate.mark(operations.size()); |
| } |
| |
| // |
| // Purge intents |
| // |
| if (!removeIntentIds.isEmpty()) { |
| lock.lock(); // TODO optimize locking using smaller steps |
| try { |
| highLevelIntents.purge(removeIntentIds); |
| } finally { |
| lock.unlock(); |
| } |
| } |
| |
| executeIntentOperations(operations); |
| |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public IntentOperationList executeIntentOperations(IntentOperationList list) { |
| |
| if (list == null || list.size() == 0) { |
| return null; |
| } |
| |
| lock.lock(); // TODO optimize locking using smaller steps |
| try { |
| log.trace("lock executeIntentOperations, lock obj is already locked? {}", lock.isLocked()); |
| // update the map of high-level intents |
| |
| highLevelIntents.executeOperations(list); |
| |
| // change states of high-level intents |
| IntentStateList states = new IntentStateList(); |
| for (IntentOperation op : list) { |
| switch (op.operator) { |
| case ADD: |
| switch (op.intent.getState()) { |
| case CREATED: |
| states.put(op.intent.getId(), IntentState.INST_REQ); |
| break; |
| case INST_ACK: |
| states.put(op.intent.getId(), IntentState.REROUTE_REQ); |
| break; |
| default: |
| break; |
| } |
| break; |
| case REMOVE: |
| switch (op.intent.getState()) { |
| case CREATED: |
| states.put(op.intent.getId(), IntentState.DEL_REQ); |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| highLevelIntents.changeStates(states); |
| |
| // calculate path-intents (low-level operations) |
| IntentOperationList pathIntentOperations = runtime.calcPathIntents(list, highLevelIntents, pathIntents); |
| |
| // persist calculated low-level operations into data store |
| long key = persistIntent.getKey(); |
| persistIntent.persistIfLeader(key, pathIntentOperations); |
| |
| // remove error-intents and reflect them to high-level intents |
| states.clear(); |
| Iterator<IntentOperation> i = pathIntentOperations.iterator(); |
| while (i.hasNext()) { |
| IntentOperation op = i.next(); |
| if (op.operator.equals(Operator.ERROR)) { |
| states.put(op.intent.getId(), IntentState.INST_NACK); |
| i.remove(); |
| } |
| } |
| highLevelIntents.changeStates(states); |
| |
| // update the map of path intents and publish the path operations |
| pathIntents.executeOperations(pathIntentOperations); |
| |
| // send notification |
| // XXX: Send notifications using the same key every time |
| // and receive them by entryAdded() and entryUpdated() |
| opEventChannel.addEntry(0L, pathIntentOperations); |
| //opEventChannel.removeEntry(key); |
| return pathIntentOperations; |
| } finally { |
| lock.unlock(); |
| log.trace("unlock executeIntentOperations"); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public IntentMap getHighLevelIntents() { |
| return highLevelIntents; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public IntentMap getPathIntents() { |
| return pathIntents; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void purgeIntents() { |
| highLevelIntents.purge(); |
| pathIntents.purge(); |
| } |
| |
| // ================================================================================ |
| // ITopologyListener implementations |
| // ================================================================================ |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void topologyEvents(TopologyEvents topologyEvents) { |
| PerfLogger p = new PerfLogger("networkGraphEvents"); |
| HashSet<Intent> affectedPaths = new HashSet<>(); |
| |
| boolean rerouteAll = false; |
| for (LinkEvent le : topologyEvents.getAddedLinkEvents()) { |
| final LinkTuple rev = new LinkTuple(le.getDst(), le.getSrc()); |
| if (unmatchedLinkEvents.contains(rev)) { |
| rerouteAll = true; |
| unmatchedLinkEvents.remove(rev); |
| log.debug("Found matched LinkEvent: {} {}", rev, le); |
| } else { |
| unmatchedLinkEvents.add(le.getLinkTuple()); |
| log.debug("Adding unmatched LinkEvent: {}", le); |
| } |
| } |
| for (LinkEvent le : topologyEvents.getRemovedLinkEvents()) { |
| if (unmatchedLinkEvents.contains(le.getLinkTuple())) { |
| unmatchedLinkEvents.remove(le.getLinkTuple()); |
| log.debug("Removing LinkEvent: {}", le); |
| } |
| } |
| if (unmatchedLinkEvents.size() > 0) { |
| log.debug("Unmatched link events: {} events", unmatchedLinkEvents.size()); |
| } |
| |
| if (rerouteAll) { |
| // |
| // (topologyEvents.getAddedLinkEvents().size() > 0) || |
| // (topologyEvents.getAddedPortEvents().size() > 0) || |
| // (topologyEvents.getAddedSwitchEvents.size() > 0) |
| // |
| p.log("begin_getAllIntents"); |
| affectedPaths.addAll(getPathIntents().getAllIntents()); |
| p.log("end_getAllIntents"); |
| } else if (topologyEvents.getRemovedSwitchEvents().size() > 0 || |
| topologyEvents.getRemovedLinkEvents().size() > 0 || |
| topologyEvents.getRemovedPortEvents().size() > 0) { |
| p.log("begin_getIntentsByLink"); |
| for (LinkEvent linkEvent : topologyEvents.getRemovedLinkEvents()) { |
| affectedPaths.addAll(pathIntents.getIntentsByLink(linkEvent)); |
| } |
| p.log("end_getIntentsByLink"); |
| |
| p.log("begin_getIntentsByPort"); |
| for (PortEvent portEvent : topologyEvents.getRemovedPortEvents()) { |
| affectedPaths.addAll(pathIntents.getIntentsByPort( |
| portEvent.getDpid(), |
| portEvent.getPortNumber())); |
| } |
| p.log("end_getIntentsByPort"); |
| |
| p.log("begin_getIntentsByDpid"); |
| for (SwitchEvent switchEvent : topologyEvents.getRemovedSwitchEvents()) { |
| affectedPaths.addAll(pathIntents.getIntentsByDpid(switchEvent.getDpid())); |
| } |
| p.log("end_getIntentsByDpid"); |
| } |
| p.log("begin_reroutePaths"); |
| reroutePaths(affectedPaths); |
| p.log("end_reroutePaths"); |
| p.flushLog(); |
| } |
| |
| // ================================================================================ |
| // IEventChannelListener implementations |
| // ================================================================================ |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void entryAdded(IntentStateList value) { |
| entryUpdated(value); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void entryRemoved(IntentStateList value) { |
| // do nothing |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @SuppressWarnings("fallthrough") |
| @Override |
| public void entryUpdated(IntentStateList value) { |
| // TODO draw state transition diagram in multiple ONOS instances and update this method |
| |
| IntentOperationList opList = new IntentOperationList(); |
| lock.lock(); // TODO optimize locking using smaller steps |
| try { |
| log.trace("lock entryUpdated, lock obj is already locked? {}", lock.isLocked()); |
| // reflect state changes of path-level intent into application-level intents |
| IntentStateList highLevelIntentStates = new IntentStateList(); |
| IntentStateList pathIntentStates = new IntentStateList(); |
| for (Entry<String, IntentState> entry : value.entrySet()) { |
| String pathIntentId = entry.getKey(); |
| IntentState nextPathIntentState = entry.getValue(); |
| PathIntent pathIntent = (PathIntent) pathIntents.getIntent(pathIntentId); |
| if (pathIntent == null) { |
| continue; |
| } |
| |
| Intent parentIntent = pathIntent.getParentIntent(); |
| if (parentIntent == null || |
| !(parentIntent instanceof ShortestPathIntent)) { |
| continue; |
| } |
| String parentIntentId = parentIntent.getId(); |
| |
| boolean isChildIntent = ((ShortestPathIntent) parentIntent).getPathIntentId().equals(pathIntentId); |
| |
| // Check necessity for retrying the intent execution. |
| // When the PathIntent(=isChildIntent) transitioned to INST_{ACK/NACK} |
| // but was marked as stale (e.g., has been requested to reroute by Topology event), |
| // then immediately enqueue the re-computation of parent intent. |
| if (isChildIntent && staleIntents.containsKey(parentIntentId) && ( |
| nextPathIntentState.equals(IntentState.INST_ACK) || |
| nextPathIntentState.equals(IntentState.INST_NACK))) { |
| opList.add(Operator.ADD, parentIntent); |
| staleIntents.remove(parentIntentId); |
| log.debug("retrying intent execution for intent ID:{}", parentIntentId); |
| } |
| |
| switch (nextPathIntentState) { |
| case INST_ACK: |
| Set<Long> installedDpids = calcInstalledDpids(pathIntent, value.domainSwitchDpids); |
| if (!isFlowInstalled(pathIntent, installedDpids)) { |
| break; |
| } |
| // FALLTHROUGH |
| case INST_NACK: |
| // FALLTHROUGH |
| case DEL_PENDING: |
| if (isChildIntent) { |
| log.debug("put the state highLevelIntentStates ID {}, state {}", |
| parentIntentId, nextPathIntentState); |
| highLevelIntentStates.put(parentIntentId, nextPathIntentState); |
| } |
| log.debug("put the state pathIntentStates ID {}, state {}", |
| pathIntentId, nextPathIntentState); |
| pathIntentStates.put(pathIntentId, nextPathIntentState); |
| break; |
| case DEL_ACK: |
| if (isChildIntent) { |
| if (intentInstalledMap.containsKey(pathIntentId)) { |
| intentInstalledMap.remove(pathIntentId); |
| } |
| log.debug("put the state highLevelIntentStates ID {}, state {}", |
| parentIntentId, nextPathIntentState); |
| highLevelIntentStates.put(parentIntentId, nextPathIntentState); |
| } |
| log.debug("put the state pathIntentStates ID {}, state {}", |
| pathIntentId, nextPathIntentState); |
| pathIntentStates.put(pathIntentId, nextPathIntentState); |
| break; |
| case CREATED: |
| break; |
| case DEL_REQ: |
| break; |
| case INST_REQ: |
| break; |
| case REROUTE_REQ: |
| break; |
| default: |
| break; |
| } |
| } |
| highLevelIntents.changeStates(highLevelIntentStates); |
| pathIntents.changeStates(pathIntentStates); |
| } finally { |
| lock.unlock(); |
| log.trace("unlock entryUpdated"); |
| } |
| executeIntentOperations(opList); |
| } |
| } |