| /* |
| * Copyright 2015-present 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.provider.nil; |
| |
| import com.google.common.collect.Sets; |
| import org.jboss.netty.util.HashedWheelTimer; |
| import org.jboss.netty.util.Timeout; |
| import org.jboss.netty.util.TimerTask; |
| import org.onlab.util.Timer; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.flow.CompletedBatchOperation; |
| import org.onosproject.net.flow.DefaultFlowEntry; |
| import org.onosproject.net.flow.FlowEntry; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleBatchEntry; |
| import org.onosproject.net.flow.FlowRuleBatchOperation; |
| import org.onosproject.net.flow.FlowRuleProvider; |
| import org.onosproject.net.flow.FlowRuleProviderService; |
| import org.slf4j.Logger; |
| |
| import java.util.Collections; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Null provider to accept any flow and report them. |
| */ |
| class NullFlowRuleProvider extends NullProviders.AbstractNullProvider |
| implements FlowRuleProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private ConcurrentMap<DeviceId, Set<FlowEntry>> flowTable = new ConcurrentHashMap<>(); |
| |
| private FlowRuleProviderService providerService; |
| |
| private HashedWheelTimer timer = Timer.getTimer(); |
| private Timeout timeout; |
| |
| /** |
| * Starts the flow rule provider simulation. |
| * |
| * @param providerService flow rule provider service |
| */ |
| void start(FlowRuleProviderService providerService) { |
| this.providerService = providerService; |
| timeout = timer.newTimeout(new StatisticTask(), 5, TimeUnit.SECONDS); |
| } |
| |
| /** |
| * Stops the flow rule provider simulation. |
| */ |
| void stop() { |
| timeout.cancel(); |
| } |
| |
| @Override |
| public void applyFlowRule(FlowRule... flowRules) { |
| // FIXME: invoke executeBatch |
| } |
| |
| @Override |
| public void removeFlowRule(FlowRule... flowRules) { |
| // FIXME: invoke executeBatch |
| } |
| |
| @Override |
| public void removeRulesById(ApplicationId id, FlowRule... flowRules) { |
| throw new UnsupportedOperationException("Cannot remove by appId from null provider"); |
| } |
| |
| @Override |
| public void executeBatch(FlowRuleBatchOperation batch) { |
| // TODO: consider checking mastership |
| Set<FlowEntry> entries = |
| flowTable.getOrDefault(batch.deviceId(), |
| Sets.newConcurrentHashSet()); |
| for (FlowRuleBatchEntry fbe : batch.getOperations()) { |
| switch (fbe.operator()) { |
| case ADD: |
| entries.add(new DefaultFlowEntry(fbe.target())); |
| break; |
| case REMOVE: |
| entries.remove(new DefaultFlowEntry(fbe.target())); |
| break; |
| case MODIFY: |
| FlowEntry entry = new DefaultFlowEntry(fbe.target()); |
| entries.remove(entry); |
| entries.add(entry); |
| break; |
| default: |
| log.error("Unknown flow operation: {}", fbe); |
| } |
| } |
| flowTable.put(batch.deviceId(), entries); |
| CompletedBatchOperation op = |
| new CompletedBatchOperation(true, Collections.emptySet(), |
| batch.deviceId()); |
| providerService.batchOperationCompleted(batch.id(), op); |
| } |
| |
| // Periodically reports flow rule statistics. |
| private class StatisticTask implements TimerTask { |
| @Override |
| public void run(Timeout to) throws Exception { |
| for (DeviceId devId : flowTable.keySet()) { |
| Set<FlowEntry> entries = |
| flowTable.getOrDefault(devId, Collections.emptySet()); |
| providerService.pushFlowMetrics(devId, entries); |
| } |
| timeout = timer.newTimeout(to.getTask(), 5, TimeUnit.SECONDS); |
| } |
| } |
| } |