| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.camel.component.kubernetes.namespaces; |
| |
| import java.util.concurrent.ExecutorService; |
| |
| import io.fabric8.kubernetes.api.model.DoneableNamespace; |
| import io.fabric8.kubernetes.api.model.Namespace; |
| import io.fabric8.kubernetes.api.model.NamespaceList; |
| import io.fabric8.kubernetes.client.KubernetesClientException; |
| import io.fabric8.kubernetes.client.Watch; |
| import io.fabric8.kubernetes.client.Watcher; |
| import io.fabric8.kubernetes.client.dsl.NonNamespaceOperation; |
| import io.fabric8.kubernetes.client.dsl.Resource; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.component.kubernetes.AbstractKubernetesEndpoint; |
| import org.apache.camel.component.kubernetes.KubernetesConstants; |
| import org.apache.camel.component.kubernetes.consumer.common.NamespaceEvent; |
| import org.apache.camel.support.DefaultConsumer; |
| import org.apache.camel.util.ObjectHelper; |
| |
| public class KubernetesNamespacesConsumer extends DefaultConsumer { |
| |
| private final Processor processor; |
| private ExecutorService executor; |
| private NamespacesConsumerTask nsWatcher; |
| |
| public KubernetesNamespacesConsumer(AbstractKubernetesEndpoint endpoint, Processor processor) { |
| super(endpoint, processor); |
| this.processor = processor; |
| } |
| |
| @Override |
| public AbstractKubernetesEndpoint getEndpoint() { |
| return (AbstractKubernetesEndpoint)super.getEndpoint(); |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| super.doStart(); |
| executor = getEndpoint().createExecutor(); |
| |
| nsWatcher = new NamespacesConsumerTask(); |
| executor.submit(nsWatcher); |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| super.doStop(); |
| |
| log.debug("Stopping Kubernetes Namespace Consumer"); |
| if (executor != null) { |
| if (getEndpoint() != null && getEndpoint().getCamelContext() != null) { |
| if (nsWatcher != null) { |
| nsWatcher.getWatch().close(); |
| } |
| getEndpoint().getCamelContext().getExecutorServiceManager().shutdownNow(executor); |
| } else { |
| if (nsWatcher != null) { |
| nsWatcher.getWatch().close(); |
| } |
| executor.shutdownNow(); |
| } |
| } |
| executor = null; |
| } |
| |
| class NamespacesConsumerTask implements Runnable { |
| |
| private Watch watch; |
| |
| @Override |
| public void run() { |
| NonNamespaceOperation<Namespace, NamespaceList, DoneableNamespace, Resource<Namespace, DoneableNamespace>> w = getEndpoint().getKubernetesClient().namespaces(); |
| if (ObjectHelper.isNotEmpty(getEndpoint().getKubernetesConfiguration().getNamespace())) { |
| w.withName(getEndpoint().getKubernetesConfiguration().getNamespace()); |
| } |
| watch = w.watch(new Watcher<Namespace>() { |
| |
| @Override |
| public void eventReceived(io.fabric8.kubernetes.client.Watcher.Action action, Namespace resource) { |
| NamespaceEvent ne = new NamespaceEvent(action, resource); |
| Exchange exchange = getEndpoint().createExchange(); |
| exchange.getIn().setBody(ne.getNamespace()); |
| exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_EVENT_ACTION, ne.getAction()); |
| exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_EVENT_TIMESTAMP, System.currentTimeMillis()); |
| try { |
| processor.process(exchange); |
| } catch (Exception e) { |
| getExceptionHandler().handleException("Error during processing", exchange, e); |
| } |
| } |
| |
| @Override |
| public void onClose(KubernetesClientException cause) { |
| if (cause != null) { |
| log.error(cause.getMessage(), cause); |
| } |
| } |
| }); |
| } |
| |
| public Watch getWatch() { |
| return watch; |
| } |
| |
| public void setWatch(Watch watch) { |
| this.watch = watch; |
| } |
| } |
| } |