| /* |
| * 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.provider.of.group.impl; |
| |
| import com.google.common.collect.Maps; |
| 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.onosproject.core.DefaultGroupId; |
| import org.onosproject.core.GroupId; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.group.DefaultGroup; |
| import org.onosproject.net.group.Group; |
| import org.onosproject.net.group.GroupBuckets; |
| import org.onosproject.net.group.GroupDescription; |
| import org.onosproject.net.group.GroupOperation; |
| import org.onosproject.net.group.GroupOperations; |
| import org.onosproject.net.group.GroupProvider; |
| import org.onosproject.net.group.GroupProviderRegistry; |
| import org.onosproject.net.group.GroupProviderService; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.openflow.controller.Dpid; |
| import org.onosproject.openflow.controller.OpenFlowController; |
| import org.onosproject.openflow.controller.OpenFlowEventListener; |
| import org.onosproject.openflow.controller.OpenFlowSwitch; |
| import org.onosproject.openflow.controller.OpenFlowSwitchListener; |
| import org.onosproject.openflow.controller.RoleState; |
| import org.projectfloodlight.openflow.protocol.OFErrorMsg; |
| import org.projectfloodlight.openflow.protocol.OFErrorType; |
| import org.projectfloodlight.openflow.protocol.OFGroupDescStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFGroupDescStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFGroupMod; |
| import org.projectfloodlight.openflow.protocol.OFGroupStatsEntry; |
| import org.projectfloodlight.openflow.protocol.OFGroupStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFGroupType; |
| import org.projectfloodlight.openflow.protocol.OFMessage; |
| import org.projectfloodlight.openflow.protocol.OFPortStatus; |
| import org.projectfloodlight.openflow.protocol.OFStatsReply; |
| import org.projectfloodlight.openflow.protocol.OFStatsType; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provider which uses an OpenFlow controller to handle Group. |
| */ |
| @Component(immediate = true) |
| public class OpenFlowGroupProvider extends AbstractProvider implements GroupProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenFlowController controller; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected GroupProviderRegistry providerRegistry; |
| |
| private GroupProviderService providerService; |
| |
| static final int POLL_INTERVAL = 10; |
| |
| private final InternalGroupProvider listener = new InternalGroupProvider(); |
| |
| private final AtomicLong xidCounter = new AtomicLong(1); |
| private final Map<Dpid, GroupStatsCollector> collectors = Maps.newHashMap(); |
| private final Map<Long, OFStatsReply> groupStats = Maps.newHashMap(); |
| private final Map<Long, GroupOperation> pendingGroupOperations = |
| Maps.newConcurrentMap(); |
| |
| /** |
| * Creates a OpenFlow group provider. |
| */ |
| public OpenFlowGroupProvider() { |
| super(new ProviderId("of", "org.onosproject.provider.group")); |
| } |
| |
| @Activate |
| public void activate() { |
| providerService = providerRegistry.register(this); |
| controller.addListener(listener); |
| controller.addEventListener(listener); |
| |
| for (OpenFlowSwitch sw : controller.getSwitches()) { |
| GroupStatsCollector gsc = new GroupStatsCollector(sw, POLL_INTERVAL); |
| gsc.start(); |
| collectors.put(new Dpid(sw.getId()), gsc); |
| } |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| providerRegistry.unregister(this); |
| providerService = null; |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void performGroupOperation(DeviceId deviceId, GroupOperations groupOps) { |
| Map<OFGroupMod, OpenFlowSwitch> mods = Maps.newIdentityHashMap(); |
| final Dpid dpid = Dpid.dpid(deviceId.uri()); |
| OpenFlowSwitch sw = controller.getSwitch(dpid); |
| for (GroupOperation groupOperation: groupOps.operations()) { |
| if (sw == null) { |
| log.error("SW {} is not found", sw.getStringId()); |
| return; |
| } |
| final Long groupModXid = xidCounter.getAndIncrement(); |
| GroupModBuilder builder = |
| GroupModBuilder.builder(groupOperation.buckets(), |
| groupOperation.groupId(), |
| groupOperation.groupType(), |
| sw.factory(), |
| Optional.of(groupModXid)); |
| OFGroupMod groupMod = null; |
| switch (groupOperation.opType()) { |
| case ADD: |
| groupMod = builder.buildGroupAdd(); |
| break; |
| case MODIFY: |
| groupMod = builder.buildGroupMod(); |
| break; |
| case DELETE: |
| groupMod = builder.buildGroupDel(); |
| break; |
| default: |
| log.error("Unsupported Group operation"); |
| } |
| sw.sendMsg(groupMod); |
| pendingGroupOperations.put(groupModXid, groupOperation); |
| } |
| } |
| |
| private void pushGroupMetrics(Dpid dpid, OFStatsReply statsReply) { |
| DeviceId deviceId = DeviceId.deviceId(Dpid.uri(dpid)); |
| |
| OFGroupStatsReply groupStatsReply = null; |
| OFGroupDescStatsReply groupDescStatsReply = null; |
| |
| if (statsReply.getStatsType() == OFStatsType.GROUP) { |
| OFStatsReply reply = groupStats.get(statsReply.getXid() + 1); |
| if (reply != null) { |
| groupStatsReply = (OFGroupStatsReply) statsReply; |
| groupDescStatsReply = (OFGroupDescStatsReply) reply; |
| groupStats.remove(statsReply.getXid() + 1); |
| } else { |
| groupStats.put(statsReply.getXid(), statsReply); |
| } |
| } else if (statsReply.getStatsType() == OFStatsType.GROUP_DESC) { |
| OFStatsReply reply = groupStats.get(statsReply.getXid() - 1); |
| if (reply != null) { |
| groupStatsReply = (OFGroupStatsReply) reply; |
| groupDescStatsReply = (OFGroupDescStatsReply) statsReply; |
| groupStats.remove(statsReply.getXid() - 1); |
| } else { |
| groupStats.put(statsReply.getXid(), statsReply); |
| } |
| } |
| |
| if (groupStatsReply != null && groupDescStatsReply != null) { |
| Collection<Group> groups = buildGroupMetrics(deviceId, |
| groupStatsReply, groupDescStatsReply); |
| providerService.pushGroupMetrics(deviceId, groups); |
| for (Group group: groups) { |
| pendingGroupOperations.remove(group.id()); |
| } |
| } |
| } |
| |
| private Collection<Group> buildGroupMetrics(DeviceId deviceId, |
| OFGroupStatsReply groupStatsReply, |
| OFGroupDescStatsReply groupDescStatsReply) { |
| |
| Map<Integer, Group> groups = Maps.newHashMap(); |
| |
| for (OFGroupDescStatsEntry entry: groupDescStatsReply.getEntries()) { |
| int id = entry.getGroup().getGroupNumber(); |
| GroupId groupId = new DefaultGroupId(id); |
| GroupDescription.Type type = getGroupType(entry.getGroupType()); |
| GroupBuckets buckets = new GroupBucketEntryBuilder(entry.getBuckets(), |
| entry.getGroupType()).build(); |
| DefaultGroup group = new DefaultGroup(groupId, deviceId, type, buckets); |
| groups.put(id, group); |
| } |
| |
| for (OFGroupStatsEntry entry: groupStatsReply.getEntries()) { |
| int groupId = entry.getGroup().getGroupNumber(); |
| DefaultGroup group = (DefaultGroup) groups.get(groupId); |
| if (group != null) { |
| group.setBytes(entry.getByteCount().getValue()); |
| group.setLife(entry.getDurationSec()); |
| group.setPackets(entry.getPacketCount().getValue()); |
| group.setReferenceCount(entry.getRefCount()); |
| } |
| } |
| |
| return groups.values(); |
| } |
| |
| private GroupDescription.Type getGroupType(OFGroupType type) { |
| switch (type) { |
| case ALL: |
| return GroupDescription.Type.ALL; |
| case INDIRECT: |
| return GroupDescription.Type.INDIRECT; |
| case SELECT: |
| return GroupDescription.Type.SELECT; |
| case FF: |
| return GroupDescription.Type.FAILOVER; |
| default: |
| log.error("Unsupported OF group type : {}", type); |
| break; |
| } |
| return null; |
| } |
| |
| private class InternalGroupProvider |
| implements OpenFlowSwitchListener, OpenFlowEventListener { |
| |
| @Override |
| public void handleMessage(Dpid dpid, OFMessage msg) { |
| switch (msg.getType()) { |
| case STATS_REPLY: |
| pushGroupMetrics(dpid, (OFStatsReply) msg); |
| break; |
| case ERROR: |
| OFErrorMsg errorMsg = (OFErrorMsg) msg; |
| if (errorMsg.getErrType() == OFErrorType.GROUP_MOD_FAILED) { |
| GroupOperation operation = |
| pendingGroupOperations.get(errorMsg.getXid()); |
| if (operation != null) { |
| providerService.groupOperationFailed(operation); |
| log.warn("received Error message {} from {}", msg, dpid); |
| } |
| break; |
| } |
| default: |
| log.debug("Unhandled message type: {}", msg.getType()); |
| } |
| } |
| |
| @Override |
| public void switchAdded(Dpid dpid) { |
| GroupStatsCollector gsc = new GroupStatsCollector( |
| controller.getSwitch(dpid), POLL_INTERVAL); |
| gsc.start(); |
| collectors.put(dpid, gsc); |
| } |
| |
| @Override |
| public void switchRemoved(Dpid dpid) { |
| GroupStatsCollector collector = collectors.remove(dpid); |
| if (collector != null) { |
| collector.stop(); |
| } |
| } |
| |
| @Override |
| public void switchChanged(Dpid dpid) { |
| } |
| |
| @Override |
| public void portChanged(Dpid dpid, OFPortStatus status) { |
| } |
| |
| @Override |
| public void receivedRoleReply(Dpid dpid, RoleState requested, RoleState response) { |
| } |
| } |
| |
| } |