| package org.onlab.onos.net.flow.impl; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| 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.onlab.onos.event.AbstractListenerRegistry; |
| import org.onlab.onos.event.EventDeliveryService; |
| import org.onlab.onos.net.Device; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.device.DeviceService; |
| import org.onlab.onos.net.flow.DefaultFlowRule; |
| import org.onlab.onos.net.flow.FlowRule; |
| import org.onlab.onos.net.flow.FlowRule.FlowRuleState; |
| import org.onlab.onos.net.flow.FlowRuleEvent; |
| import org.onlab.onos.net.flow.FlowRuleListener; |
| import org.onlab.onos.net.flow.FlowRuleProvider; |
| import org.onlab.onos.net.flow.FlowRuleProviderRegistry; |
| import org.onlab.onos.net.flow.FlowRuleProviderService; |
| import org.onlab.onos.net.flow.FlowRuleService; |
| import org.onlab.onos.net.flow.FlowRuleStore; |
| import org.onlab.onos.net.provider.AbstractProviderRegistry; |
| import org.onlab.onos.net.provider.AbstractProviderService; |
| import org.slf4j.Logger; |
| |
| import com.google.common.collect.Lists; |
| |
| @Component(immediate = true) |
| @Service |
| public class FlowRuleManager |
| extends AbstractProviderRegistry<FlowRuleProvider, FlowRuleProviderService> |
| implements FlowRuleService, FlowRuleProviderRegistry { |
| |
| public static final String FLOW_RULE_NULL = "FlowRule cannot be null"; |
| private final Logger log = getLogger(getClass()); |
| |
| private final AbstractListenerRegistry<FlowRuleEvent, FlowRuleListener> |
| listenerRegistry = new AbstractListenerRegistry<>(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowRuleStore store; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected EventDeliveryService eventDispatcher; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Activate |
| public void activate() { |
| eventDispatcher.addSink(FlowRuleEvent.class, listenerRegistry); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| eventDispatcher.removeSink(FlowRuleEvent.class); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public Iterable<FlowRule> getFlowEntries(DeviceId deviceId) { |
| return store.getFlowEntries(deviceId); |
| } |
| |
| @Override |
| public void applyFlowRules(FlowRule... flowRules) { |
| for (int i = 0; i < flowRules.length; i++) { |
| FlowRule f = new DefaultFlowRule(flowRules[i], FlowRuleState.PENDING_ADD); |
| final Device device = deviceService.getDevice(f.deviceId()); |
| final FlowRuleProvider frp = getProvider(device.providerId()); |
| store.storeFlowRule(f); |
| frp.applyFlowRule(f); |
| } |
| } |
| |
| @Override |
| public void removeFlowRules(FlowRule... flowRules) { |
| for (int i = 0; i < flowRules.length; i++) { |
| FlowRule f = new DefaultFlowRule(flowRules[i], FlowRuleState.PENDING_REMOVE); |
| final Device device = deviceService.getDevice(f.deviceId()); |
| final FlowRuleProvider frp = getProvider(device.providerId()); |
| store.deleteFlowRule(f); |
| frp.removeFlowRule(f); |
| } |
| |
| } |
| |
| @Override |
| public void addListener(FlowRuleListener listener) { |
| listenerRegistry.addListener(listener); |
| } |
| |
| @Override |
| public void removeListener(FlowRuleListener listener) { |
| listenerRegistry.removeListener(listener); |
| } |
| |
| @Override |
| protected FlowRuleProviderService createProviderService( |
| FlowRuleProvider provider) { |
| return new InternalFlowRuleProviderService(provider); |
| } |
| |
| private class InternalFlowRuleProviderService |
| extends AbstractProviderService<FlowRuleProvider> |
| implements FlowRuleProviderService { |
| |
| protected InternalFlowRuleProviderService(FlowRuleProvider provider) { |
| super(provider); |
| } |
| |
| @Override |
| public void flowRemoved(FlowRule flowRule) { |
| checkNotNull(flowRule, FLOW_RULE_NULL); |
| checkValidity(); |
| FlowRuleEvent event = store.removeFlowRule(flowRule); |
| |
| if (event != null) { |
| log.debug("Flow {} removed", flowRule); |
| post(event); |
| } |
| } |
| |
| @Override |
| public void flowMissing(FlowRule flowRule) { |
| checkNotNull(flowRule, FLOW_RULE_NULL); |
| checkValidity(); |
| log.info("Flow {} has not been installed."); |
| |
| } |
| |
| @Override |
| public void extraneousFlow(FlowRule flowRule) { |
| checkNotNull(flowRule, FLOW_RULE_NULL); |
| checkValidity(); |
| log.info("Flow {} is on switch but not in store."); |
| } |
| |
| @Override |
| public void flowAdded(FlowRule flowRule) { |
| checkNotNull(flowRule, FLOW_RULE_NULL); |
| checkValidity(); |
| |
| FlowRuleEvent event = store.addOrUpdateFlowRule(flowRule); |
| if (event == null) { |
| log.debug("No flow store event generated."); |
| } else { |
| log.debug("Flow {} {}", flowRule, event.type()); |
| post(event); |
| } |
| |
| } |
| |
| // Posts the specified event to the local event dispatcher. |
| private void post(FlowRuleEvent event) { |
| if (event != null) { |
| eventDispatcher.post(event); |
| } |
| } |
| |
| @Override |
| public void pushFlowMetrics(DeviceId deviceId, Iterable<FlowRule> flowEntries) { |
| List<FlowRule> storedRules = Lists.newLinkedList(store.getFlowEntries(deviceId)); |
| //List<FlowRule> switchRules = Lists.newLinkedList(flowEntries); |
| Iterator<FlowRule> switchRulesIterator = flowEntries.iterator(); //switchRules.iterator(); |
| |
| while (switchRulesIterator.hasNext()) { |
| FlowRule rule = switchRulesIterator.next(); |
| if (storedRules.remove(rule)) { |
| // we both have the rule, let's update some info then. |
| flowAdded(rule); |
| } else { |
| // the device has a rule the store does not have |
| extraneousFlow(rule); |
| } |
| } |
| for (FlowRule rule : storedRules) { |
| // there are rules in the store that aren't on the switch |
| flowMissing(rule); |
| } |
| } |
| } |
| |
| } |