| /* |
| * 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.k8snetworking.impl; |
| |
| import com.google.common.base.Strings; |
| import com.google.common.collect.ImmutableSet; |
| import io.fabric8.kubernetes.api.model.Pod; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.k8snetworking.api.K8sPodAdminService; |
| import org.onosproject.k8snetworking.api.K8sPodEvent; |
| import org.onosproject.k8snetworking.api.K8sPodListener; |
| import org.onosproject.k8snetworking.api.K8sPodService; |
| import org.onosproject.k8snetworking.api.K8sPodStore; |
| import org.onosproject.k8snetworking.api.K8sPodStoreDelegate; |
| 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.Set; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides implementation of administering and interfacing kubernetes pod. |
| */ |
| @Component( |
| immediate = true, |
| service = {K8sPodAdminService.class, K8sPodService.class} |
| ) |
| public class K8sPodManager |
| extends ListenerRegistry<K8sPodEvent, K8sPodListener> |
| implements K8sPodAdminService, K8sPodService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final String MSG_POD = "Kubernetes pod %s %s"; |
| private static final String MSG_CREATED = "created"; |
| private static final String MSG_UPDATED = "updated"; |
| private static final String MSG_REMOVED = "removed"; |
| |
| private static final String ERR_NULL_POD = "Kubernetes pod cannot be null"; |
| private static final String ERR_NULL_POD_UID = "Kubernetes pod UID cannot be null"; |
| |
| private static final String ERR_IN_USE = " still in use"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sPodStore k8sPodStore; |
| |
| private final K8sPodStoreDelegate delegate = new InternalPodStorageDelegate(); |
| |
| private ApplicationId appId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| |
| k8sPodStore.setDelegate(delegate); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| k8sPodStore.unsetDelegate(delegate); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createPod(Pod pod) { |
| checkNotNull(pod, ERR_NULL_POD); |
| checkArgument(!Strings.isNullOrEmpty(pod.getMetadata().getUid()), |
| ERR_NULL_POD_UID); |
| |
| k8sPodStore.createPod(pod); |
| |
| log.info(String.format(MSG_POD, pod.getMetadata().getName(), MSG_CREATED)); |
| } |
| |
| @Override |
| public void updatePod(Pod pod) { |
| checkNotNull(pod, ERR_NULL_POD); |
| checkArgument(!Strings.isNullOrEmpty(pod.getMetadata().getUid()), |
| ERR_NULL_POD_UID); |
| |
| k8sPodStore.updatePod(pod); |
| |
| log.info(String.format(MSG_POD, pod.getMetadata().getName(), MSG_UPDATED)); |
| } |
| |
| @Override |
| public void removePod(String uid) { |
| checkArgument(!Strings.isNullOrEmpty(uid), ERR_NULL_POD_UID); |
| |
| synchronized (this) { |
| if (isPodInUse(uid)) { |
| final String error = String.format(MSG_POD, uid, ERR_IN_USE); |
| throw new IllegalStateException(error); |
| } |
| |
| Pod pod = k8sPodStore.removePod(uid); |
| |
| if (pod != null) { |
| log.info(String.format(MSG_POD, |
| pod.getMetadata().getName(), MSG_REMOVED)); |
| } |
| } |
| } |
| |
| @Override |
| public void clear() { |
| k8sPodStore.clear(); |
| } |
| |
| @Override |
| public Pod pod(String uid) { |
| checkArgument(!Strings.isNullOrEmpty(uid), ERR_NULL_POD_UID); |
| return k8sPodStore.pod(uid); |
| } |
| |
| @Override |
| public Set<Pod> pods() { |
| return ImmutableSet.copyOf(k8sPodStore.pods()); |
| } |
| |
| private boolean isPodInUse(String uid) { |
| return false; |
| } |
| |
| private class InternalPodStorageDelegate implements K8sPodStoreDelegate { |
| |
| @Override |
| public void notify(K8sPodEvent event) { |
| if (event != null) { |
| log.trace("send kubernetes pod event {}", event); |
| process(event); |
| } |
| } |
| } |
| } |