Not ready, commiting to transfer between systems for work.
Change-Id: Ifb3d2ce184761574aa0fd35211deacfac1236d63
diff --git a/core/net/src/main/java/org/onosproject/net/edgeservice/impl/EdgeManager.java b/core/net/src/main/java/org/onosproject/net/edgeservice/impl/EdgeManager.java
new file mode 100644
index 0000000..fdb7988
--- /dev/null
+++ b/core/net/src/main/java/org/onosproject/net/edgeservice/impl/EdgeManager.java
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2014 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.edgeservice.impl;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
+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.event.Event;
+import org.onosproject.event.EventDeliveryService;
+import org.onosproject.event.ListenerRegistry;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceEvent;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.edge.EdgePortEvent;
+import org.onosproject.net.edge.EdgePortListener;
+import org.onosproject.net.edge.EdgePortService;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.link.LinkEvent;
+import org.onosproject.net.packet.DefaultOutboundPacket;
+import org.onosproject.net.packet.OutboundPacket;
+import org.onosproject.net.packet.PacketService;
+import org.onosproject.net.topology.Topology;
+import org.onosproject.net.topology.TopologyEvent;
+import org.onosproject.net.topology.TopologyListener;
+import org.onosproject.net.topology.TopologyService;
+import org.slf4j.Logger;
+
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.onosproject.net.edge.EdgePortEvent.Type.EDGE_PORT_ADDED;
+import static org.onosproject.net.edge.EdgePortEvent.Type.EDGE_PORT_REMOVED;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * This is an implementation of the edge net service.
+ */
+@Component(immediate = true)
+@Service
+public class EdgeManager implements EdgePortService {
+
+ private final ListenerRegistry<EdgePortEvent, EdgePortListener>
+ listenerRegistry = new ListenerRegistry<>();
+
+ private final Logger log = getLogger(getClass());
+
+ private Topology topology;
+
+ private final TopologyListener topologyListener = new InnerTopologyListener();
+
+ private final Map<DeviceId, Set<ConnectPoint>> connectionPoints = Maps.newConcurrentMap();
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected EventDeliveryService eventDispatcher;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected PacketService packetService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected DeviceService deviceService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+ protected TopologyService topologyService;
+
+ @Activate
+ public void activate() {
+ eventDispatcher.addSink(EdgePortEvent.class, listenerRegistry);
+ topologyService.addListener(topologyListener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ eventDispatcher.removeSink(EdgePortEvent.class);
+ topologyService.removeListener(topologyListener);
+ log.info("Stopped");
+ }
+
+ public boolean isEdgePoint(ConnectPoint point) {
+ return !topologyService.isInfrastructure(topologyService.currentTopology(), point);
+ }
+
+ public Iterable<ConnectPoint> getEdgePoints() {
+ //TODO if this is called before any notifications need to populate structure
+ ImmutableSet.Builder<ConnectPoint> builder = ImmutableSet.builder();
+ connectionPoints.forEach((k, v) -> v.forEach(builder::add));
+ return builder.build();
+ }
+
+ public Iterable<ConnectPoint> getEdgePoints(DeviceId deviceId) {
+ //TODO if this is called before any notifications need to populate structure
+ ImmutableSet.Builder<ConnectPoint> builder = ImmutableSet.builder();
+ Set<ConnectPoint> set = connectionPoints.get(deviceId);
+ if (set != null) {
+ set.forEach(builder::add);
+ }
+ return builder.build();
+ }
+
+ public void emitPacket(ByteBuffer data, Optional<TrafficTreatment> treatment) {
+ TrafficTreatment.Builder builder = treatment.isPresent() ?
+ DefaultTrafficTreatment.builder(treatment.get()) :
+ DefaultTrafficTreatment.builder();
+ getEdgePoints().forEach(p -> packetService.emit(packet(builder, p, data)));
+ }
+
+ public void emitPacket(DeviceId deviceId, ByteBuffer data,
+ Optional<TrafficTreatment> treatment) {
+ TrafficTreatment.Builder builder = treatment.isPresent() ?
+ DefaultTrafficTreatment.builder(treatment.get()) :
+ DefaultTrafficTreatment.builder();
+ getEdgePoints(deviceId).forEach(p -> packetService.emit(packet(builder, p, data)));
+
+ }
+
+ private OutboundPacket packet(TrafficTreatment.Builder builder, ConnectPoint point, ByteBuffer data) {
+ builder.setOutput(point.port());
+ return new DefaultOutboundPacket(point.deviceId(), builder.build(), data);
+ }
+
+ public void addListener(EdgePortListener listener) {
+ listenerRegistry.addListener(listener);
+ }
+
+ public void removeListener(EdgePortListener listener) {
+ listenerRegistry.removeListener(listener);
+ }
+
+
+ private class InnerTopologyListener implements TopologyListener {
+ @Override
+ public void event(TopologyEvent event) {
+ topology = event.subject();
+ List<Event> triggers = event.reasons();
+ if (triggers != null) {
+ triggers.forEach(reason -> {
+ if (reason instanceof DeviceEvent) {
+ //TODO spuriously catches events not handled in the handler method
+ processDeviceEvent((DeviceEvent) reason);
+ } else if (reason instanceof LinkEvent) {
+ processLinkEvent((LinkEvent) reason);
+ } else {
+ System.out.println(reason.toString());
+ }
+ });
+ } else {
+ loadAllEdgePorts();
+ }
+ }
+ }
+
+
+ private void loadAllEdgePorts() {
+ deviceService.getDevices().forEach(d -> deviceService.getPorts(d.id())
+ .forEach(p -> addEdgePort(new ConnectPoint(d.id(), p.number()))));
+ }
+
+ private void processLinkEvent(LinkEvent event) {
+ if (event.type() == LinkEvent.Type.LINK_ADDED) {
+ removeEdgePort(event.subject().src());
+ removeEdgePort(event.subject().dst());
+ } else if (event.type() == LinkEvent.Type.LINK_REMOVED) {
+ addEdgePort(event.subject().src());
+ addEdgePort(event.subject().dst());
+ }
+
+ }
+
+ private void processDeviceEvent(DeviceEvent event) {
+
+ if (event.type() == DeviceEvent.Type.PORT_ADDED) {
+ addEdgePort(new ConnectPoint(event.subject().id(), event.port().number()));
+ } else if (event.type() == DeviceEvent.Type.PORT_REMOVED) {
+ removeEdgePort(new ConnectPoint(event.subject().id(), event.port().number()));
+ }
+ }
+
+ private void addEdgePort(ConnectPoint point) {
+ //TODO case of link removed and one of the end ports removed in same topo cycle
+ //TODO pt2. resulting behavior will be adding a non-existent edge to the set
+ if (!topologyService.isInfrastructure(topology, point)) {
+ Set<ConnectPoint> set = connectionPoints.get(point.deviceId());
+ if (set == null) {
+ set = Sets.newConcurrentHashSet();
+ connectionPoints.put(point.deviceId(), set);
+ }
+ if (set.add(point)) {
+ eventDispatcher.post(new EdgePortEvent(EDGE_PORT_ADDED, point));
+ }
+ }
+
+ }
+
+ private void removeEdgePort(ConnectPoint point) {
+ //TODO need to check that points still exist IE when a link and port are removed
+ //TODO pt2 and both events are captures in the same topo update
+ if (!topologyService.isInfrastructure(topology, point)) {
+ Set<ConnectPoint> set = connectionPoints.get(point.deviceId());
+ if (set == null) {
+ return;
+ }
+ if (set.remove(point)) {
+ eventDispatcher.post(new EdgePortEvent(EDGE_PORT_REMOVED, point));
+ }
+ if (set.isEmpty()) {
+ connectionPoints.remove(point.deviceId());
+ }
+ }
+
+ }
+}