| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.store.key.impl; |
| |
| 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.net.key.DeviceKey; |
| import org.onosproject.net.key.DeviceKeyEvent; |
| import org.onosproject.net.key.DeviceKeyId; |
| import org.onosproject.net.key.DeviceKeyStore; |
| import org.onosproject.net.key.DeviceKeyStoreDelegate; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.MapEvent; |
| import org.onosproject.store.service.MapEventListener; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * A distributed device key store implementation, device keys are stored consistently |
| * across the cluster. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DistributedDeviceKeyStore |
| extends AbstractStore<DeviceKeyEvent, DeviceKeyStoreDelegate> |
| implements DeviceKeyStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private ConsistentMap<DeviceKeyId, DeviceKey> deviceKeys; |
| private Map<DeviceKeyId, DeviceKey> deviceKeysMap; |
| |
| private final MapEventListener<DeviceKeyId, DeviceKey> listener = new InternalMapListener(); |
| |
| /** |
| * Activate the distributed device key store. |
| */ |
| @Activate |
| public void activate() { |
| deviceKeys = storageService.<DeviceKeyId, DeviceKey>consistentMapBuilder() |
| .withSerializer(Serializer.using(Arrays.asList(KryoNamespaces.API), |
| DeviceKey.class, |
| DeviceKeyId.class, |
| DeviceKey.Type.class)) |
| .withName("onos-device-keys") |
| .withRelaxedReadConsistency() |
| .build(); |
| deviceKeys.addListener(listener); |
| deviceKeysMap = deviceKeys.asJavaMap(); |
| |
| log.info("Started"); |
| } |
| |
| /** |
| * Deactivate the distributed device key store. |
| */ |
| @Deactivate |
| public void deactivate() { |
| deviceKeys.removeListener(listener); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createOrUpdateDeviceKey(DeviceKey deviceKey) { |
| |
| // Add the device key to the store, if the device key already exists |
| // then it will be replaced with the new one. |
| deviceKeys.put(deviceKey.deviceKeyId(), deviceKey); |
| } |
| |
| @Override |
| public void deleteDeviceKey(DeviceKeyId deviceKeyId) { |
| // Remove the device key from the store if the device key identifier exists. |
| deviceKeys.remove(deviceKeyId); |
| } |
| |
| @Override |
| public Collection<DeviceKey> getDeviceKeys() { |
| return deviceKeysMap.values(); |
| } |
| |
| @Override |
| public DeviceKey getDeviceKey(DeviceKeyId deviceKeyId) { |
| return deviceKeysMap.get(deviceKeyId); |
| } |
| |
| /** |
| * Listener class to map listener events to the device key events. |
| */ |
| private class InternalMapListener implements MapEventListener<DeviceKeyId, DeviceKey> { |
| @Override |
| public void event(MapEvent<DeviceKeyId, DeviceKey> event) { |
| DeviceKey deviceKey = null; |
| |
| DeviceKeyEvent.Type type = null; |
| switch (event.type()) { |
| case INSERT: |
| type = DeviceKeyEvent.Type.DEVICE_KEY_ADDED; |
| deviceKey = checkNotNull(event.newValue().value()); |
| break; |
| case UPDATE: |
| type = DeviceKeyEvent.Type.DEVICE_KEY_UPDATED; |
| deviceKey = checkNotNull(event.newValue().value()); |
| break; |
| case REMOVE: |
| type = DeviceKeyEvent.Type.DEVICE_KEY_REMOVED; |
| deviceKey = checkNotNull(event.oldValue().value()); |
| break; |
| default: |
| log.error("Unsupported event type: " + event.type()); |
| } |
| notifyDelegate(new DeviceKeyEvent(type, deviceKey)); |
| } |
| } |
| } |