| /* |
| * 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.net.newresource.impl; |
| |
| import com.google.common.collect.Lists; |
| import org.onlab.packet.MplsLabel; |
| import org.onlab.packet.VlanId; |
| import org.onlab.util.ItemNotFoundException; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.OchPort; |
| import org.onosproject.net.OchSignal; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.TributarySlot; |
| import org.onosproject.net.OduSignalType; |
| import org.onosproject.net.behaviour.LambdaQuery; |
| import org.onosproject.net.behaviour.MplsQuery; |
| import org.onosproject.net.behaviour.VlanQuery; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.Driver; |
| import org.onosproject.net.driver.DriverHandler; |
| import org.onosproject.net.driver.DriverService; |
| import org.onosproject.net.newresource.ResourceAdminService; |
| import org.onosproject.net.newresource.ResourcePath; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.SortedSet; |
| import java.util.concurrent.ExecutorService; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * An implementation of DeviceListener registering devices as resources. |
| */ |
| final class ResourceDeviceListener implements DeviceListener { |
| |
| private static final Logger log = LoggerFactory.getLogger(ResourceDeviceListener.class); |
| |
| private static final int MAX_VLAN_ID = VlanId.MAX_VLAN; |
| private static final List<VlanId> ENTIRE_VLAN_IDS = getEntireVlans(); |
| |
| private static final int MAX_MPLS_LABEL = 1048576; |
| private static final List<MplsLabel> ENTIRE_MPLS_LABELS = getEntireMplsLabels(); |
| |
| private static final int TOTAL_ODU2_TRIBUTARY_SLOTS = 8; |
| private static final int TOTAL_ODU4_TRIBUTARY_SLOTS = 80; |
| private static final List<TributarySlot> ENTIRE_ODU2_TRIBUTARY_SLOTS = getEntireOdu2TributarySlots(); |
| private static final List<TributarySlot> ENTIRE_ODU4_TRIBUTARY_SLOTS = getEntireOdu4TributarySlots(); |
| |
| private final ResourceAdminService adminService; |
| private final DeviceService deviceService; |
| private final DriverService driverService; |
| private final ExecutorService executor; |
| |
| |
| /** |
| * Creates an instance with the specified ResourceAdminService and ExecutorService. |
| * |
| * @param adminService instance invoked to register resources |
| * @param deviceService {@link DeviceService} to be used. |
| * @param executor executor used for processing resource registration |
| */ |
| ResourceDeviceListener(ResourceAdminService adminService, DeviceService deviceService, DriverService driverService, |
| ExecutorService executor) { |
| this.adminService = checkNotNull(adminService); |
| this.deviceService = checkNotNull(deviceService); |
| this.driverService = checkNotNull(driverService); |
| this.executor = checkNotNull(executor); |
| } |
| |
| @Override |
| public void event(DeviceEvent event) { |
| Device device = event.subject(); |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| registerDeviceResource(device); |
| break; |
| case DEVICE_REMOVED: |
| unregisterDeviceResource(device); |
| break; |
| case DEVICE_AVAILABILITY_CHANGED: |
| if (deviceService.isAvailable(device.id())) { |
| registerDeviceResource(device); |
| // TODO: do we need to walk the ports? |
| } else { |
| unregisterDeviceResource(device); |
| } |
| break; |
| case PORT_ADDED: |
| case PORT_UPDATED: |
| if (event.port().isEnabled()) { |
| registerPortResource(device, event.port()); |
| } else { |
| unregisterPortResource(device, event.port()); |
| } |
| break; |
| case PORT_REMOVED: |
| unregisterPortResource(device, event.port()); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void registerDeviceResource(Device device) { |
| executor.submit(() -> adminService.registerResources(ResourcePath.discrete(device.id()))); |
| } |
| |
| private void unregisterDeviceResource(Device device) { |
| executor.submit(() -> adminService.unregisterResources(ResourcePath.discrete(device.id()))); |
| } |
| |
| private void registerPortResource(Device device, Port port) { |
| ResourcePath portPath = ResourcePath.discrete(device.id(), port.number()); |
| executor.submit(() -> { |
| adminService.registerResources(portPath); |
| |
| // for VLAN IDs |
| if (isVlanEnabled(device.id(), port.number())) { |
| adminService.registerResources(Lists.transform(ENTIRE_VLAN_IDS, portPath::child)); |
| } |
| |
| // for MPLS labels |
| if (isMplsEnabled(device.id(), port.number())) { |
| adminService.registerResources(Lists.transform(ENTIRE_MPLS_LABELS, portPath::child)); |
| } |
| |
| // for Lambdas |
| SortedSet<OchSignal> lambdas = queryLambdas(device.id(), port.number()); |
| if (!lambdas.isEmpty()) { |
| adminService.registerResources(lambdas.stream() |
| .map(portPath::child) |
| .collect(Collectors.toList())); |
| } |
| |
| // for Tributary slots |
| // TODO: need to define Behaviour to make a query about OCh port |
| switch (port.type()) { |
| case OCH: |
| // register ODU TributarySlots against the OCH port |
| registerTributarySlotsResources(((OchPort) port).signalType(), portPath); |
| break; |
| default: |
| break; |
| } |
| }); |
| } |
| |
| private void registerTributarySlotsResources(OduSignalType oduSignalType, ResourcePath portPath) { |
| switch (oduSignalType) { |
| case ODU2: |
| adminService.registerResources(Lists.transform(ENTIRE_ODU2_TRIBUTARY_SLOTS, portPath::child)); |
| break; |
| case ODU4: |
| adminService.registerResources(Lists.transform(ENTIRE_ODU4_TRIBUTARY_SLOTS, portPath::child)); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void unregisterPortResource(Device device, Port port) { |
| ResourcePath resource = ResourcePath.discrete(device.id(), port.number()); |
| executor.submit(() -> adminService.unregisterResources(resource)); |
| } |
| |
| private SortedSet<OchSignal> queryLambdas(DeviceId did, PortNumber port) { |
| try { |
| // DriverHandler does not provide a way to check if a |
| // behaviour is supported. |
| Driver driver = driverService.getDriver(did); |
| if (driver == null || !driver.hasBehaviour(LambdaQuery.class)) { |
| return Collections.emptySortedSet(); |
| } |
| DriverHandler handler = driverService.createHandler(did); |
| if (handler == null) { |
| return Collections.emptySortedSet(); |
| } |
| LambdaQuery query = handler.behaviour(LambdaQuery.class); |
| if (query != null) { |
| return query.queryLambdas(port); |
| } else { |
| return Collections.emptySortedSet(); |
| } |
| } catch (ItemNotFoundException e) { |
| return Collections.emptySortedSet(); |
| } |
| } |
| |
| private boolean isVlanEnabled(DeviceId device, PortNumber port) { |
| try { |
| // DriverHandler does not provide a way to check if a |
| // behaviour is supported. |
| Driver driver = driverService.getDriver(device); |
| if (driver == null || !driver.hasBehaviour(VlanQuery.class)) { |
| // device does not support this |
| return false; |
| } |
| |
| DriverHandler handler = driverService.createHandler(device); |
| if (handler == null) { |
| return false; |
| } |
| |
| VlanQuery query = handler.behaviour(VlanQuery.class); |
| return query != null && query.isEnabled(port); |
| } catch (ItemNotFoundException e) { |
| return false; |
| } |
| } |
| |
| private boolean isMplsEnabled(DeviceId device, PortNumber port) { |
| try { |
| // DriverHandler does not provide a way to check if a |
| // behaviour is supported. |
| Driver driver = driverService.getDriver(device); |
| if (driver == null || !driver.hasBehaviour(MplsQuery.class)) { |
| // device does not support this |
| return false; |
| } |
| DriverHandler handler = driverService.createHandler(device); |
| if (handler == null) { |
| return false; |
| } |
| |
| MplsQuery query = handler.behaviour(MplsQuery.class); |
| return query != null && query.isEnabled(port); |
| } catch (ItemNotFoundException e) { |
| return false; |
| } |
| } |
| |
| private static List<VlanId> getEntireVlans() { |
| return IntStream.range(0, MAX_VLAN_ID) |
| .mapToObj(x -> VlanId.vlanId((short) x)) |
| .collect(Collectors.toList()); |
| } |
| |
| private static List<MplsLabel> getEntireMplsLabels() { |
| // potentially many objects are created |
| return IntStream.range(0, MAX_MPLS_LABEL) |
| .mapToObj(MplsLabel::mplsLabel) |
| .collect(Collectors.toList()); |
| } |
| |
| private static List<TributarySlot> getEntireOdu2TributarySlots() { |
| return IntStream.rangeClosed(1, TOTAL_ODU2_TRIBUTARY_SLOTS) |
| .mapToObj(TributarySlot::of) |
| .collect(Collectors.toList()); |
| } |
| private static List<TributarySlot> getEntireOdu4TributarySlots() { |
| return IntStream.rangeClosed(1, TOTAL_ODU4_TRIBUTARY_SLOTS) |
| .mapToObj(TributarySlot::of) |
| .collect(Collectors.toList()); |
| } |
| } |