| /* |
| * Copyright 2019-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.k8snode.impl; |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.k8snode.api.DefaultK8sApiConfig; |
| import org.onosproject.k8snode.api.K8sApiConfig; |
| import org.onosproject.k8snode.api.K8sApiConfigEvent; |
| import org.onosproject.k8snode.api.K8sApiConfigStore; |
| import org.onosproject.k8snode.api.K8sApiConfigStoreDelegate; |
| 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.onosproject.store.service.Versioned; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_CREATED; |
| import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_REMOVED; |
| import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_UPDATED; |
| import static org.onosproject.k8snode.util.K8sNodeUtil.endpoint; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of kubernetes API config store using consistent map. |
| */ |
| @Component(immediate = true, service = K8sApiConfigStore.class) |
| public class DistributedK8sApiConfigStore |
| extends AbstractStore<K8sApiConfigEvent, K8sApiConfigStoreDelegate> |
| implements K8sApiConfigStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String ERR_NOT_FOUND = " does not exist"; |
| private static final String ERR_DUPLICATE = " already exists"; |
| private static final String APP_ID = "org.onosproject.k8snode"; |
| |
| private static final KryoNamespace |
| SERIALIZER_K8S_API_CONFIG = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(K8sApiConfig.class) |
| .register(DefaultK8sApiConfig.class) |
| .register(K8sApiConfig.Scheme.class) |
| .register(K8sApiConfig.State.class) |
| .register(Collection.class) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected StorageService storageService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private final MapEventListener<String, K8sApiConfig> apiConfigMapListener = |
| new K8sApiConfigMapListener(); |
| private ConsistentMap<String, K8sApiConfig> apiConfigStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(APP_ID); |
| apiConfigStore = storageService.<String, K8sApiConfig>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_K8S_API_CONFIG)) |
| .withName("k8s-apiconfig-store") |
| .withApplicationId(appId) |
| .build(); |
| apiConfigStore.addListener(apiConfigMapListener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| apiConfigStore.removeListener(apiConfigMapListener); |
| eventExecutor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createApiConfig(K8sApiConfig config) { |
| String key = endpoint(config); |
| apiConfigStore.compute(key, (endpoint, existing) -> { |
| final String error = key + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return config; |
| }); |
| } |
| |
| @Override |
| public void updateApiConfig(K8sApiConfig config) { |
| String key = endpoint(config); |
| apiConfigStore.compute(key, (endpoint, existing) -> { |
| final String error = key + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return config; |
| }); |
| } |
| |
| @Override |
| public K8sApiConfig removeApiConfig(String endpoint) { |
| Versioned<K8sApiConfig> apiConfig = apiConfigStore.remove(endpoint); |
| if (apiConfig == null) { |
| final String error = endpoint + ERR_NOT_FOUND; |
| throw new IllegalArgumentException(error); |
| } |
| return apiConfig.value(); |
| } |
| |
| @Override |
| public K8sApiConfig removeApiConfig(K8sApiConfig.Scheme scheme, |
| IpAddress ipAddress, int port) { |
| String key = endpoint(scheme, ipAddress, port); |
| return removeApiConfig(key); |
| } |
| |
| @Override |
| public Set<K8sApiConfig> apiConfigs() { |
| return ImmutableSet.copyOf(apiConfigStore.asJavaMap().values()); |
| } |
| |
| @Override |
| public K8sApiConfig apiConfig(String endpoint) { |
| return apiConfigStore.asJavaMap().get(endpoint); |
| } |
| |
| @Override |
| public K8sApiConfig apiConfig(K8sApiConfig.Scheme scheme, |
| IpAddress ipAddress, int port) { |
| String key = endpoint(scheme, ipAddress, port); |
| return apiConfig(key); |
| } |
| |
| private class K8sApiConfigMapListener |
| implements MapEventListener<String, K8sApiConfig> { |
| |
| @Override |
| public void event(MapEvent<String, K8sApiConfig> event) { |
| switch (event.type()) { |
| case INSERT: |
| log.debug("Kubernetes API config created {}", event.newValue()); |
| eventExecutor.execute(() -> |
| notifyDelegate(new K8sApiConfigEvent( |
| K8S_API_CONFIG_CREATED, event.newValue().value() |
| ))); |
| break; |
| case UPDATE: |
| log.debug("Kubernetes API config updated {}", event.newValue()); |
| eventExecutor.execute(() -> |
| notifyDelegate(new K8sApiConfigEvent( |
| K8S_API_CONFIG_UPDATED, event.newValue().value() |
| ))); |
| break; |
| case REMOVE: |
| log.debug("Kubernetes API config removed {}", event.oldValue()); |
| eventExecutor.execute(() -> |
| notifyDelegate(new K8sApiConfigEvent( |
| K8S_API_CONFIG_REMOVED, event.oldValue().value() |
| ))); |
| break; |
| default: |
| // do nothing |
| break; |
| } |
| } |
| } |
| } |