| /* |
| * 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.hpa; |
| |
| import java.util.Map; |
| |
| import io.fabric8.kubernetes.api.model.HorizontalPodAutoscaler; |
| import io.fabric8.kubernetes.api.model.HorizontalPodAutoscalerBuilder; |
| import io.fabric8.kubernetes.api.model.HorizontalPodAutoscalerList; |
| import io.fabric8.kubernetes.api.model.HorizontalPodAutoscalerSpec; |
| import io.fabric8.kubernetes.client.Watch; |
| import io.fabric8.kubernetes.client.Watcher; |
| import io.fabric8.kubernetes.client.dsl.FilterWatchListMultiDeletable; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.component.kubernetes.AbstractKubernetesEndpoint; |
| import org.apache.camel.component.kubernetes.KubernetesConstants; |
| import org.apache.camel.component.kubernetes.KubernetesOperations; |
| import org.apache.camel.support.DefaultProducer; |
| import org.apache.camel.support.MessageHelper; |
| import org.apache.camel.util.ObjectHelper; |
| |
| public class KubernetesHPAProducer extends DefaultProducer { |
| |
| public KubernetesHPAProducer(AbstractKubernetesEndpoint endpoint) { |
| super(endpoint); |
| } |
| |
| @Override |
| public AbstractKubernetesEndpoint getEndpoint() { |
| return (AbstractKubernetesEndpoint)super.getEndpoint(); |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| String operation; |
| |
| if (ObjectHelper.isEmpty(getEndpoint().getKubernetesConfiguration().getOperation())) { |
| operation = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_OPERATION, String.class); |
| } else { |
| operation = getEndpoint().getKubernetesConfiguration().getOperation(); |
| } |
| |
| switch (operation) { |
| |
| case KubernetesOperations.LIST_HPA: |
| doList(exchange, operation); |
| break; |
| |
| case KubernetesOperations.LIST_HPA_BY_LABELS_OPERATION: |
| doListHPAByLabel(exchange, operation); |
| break; |
| |
| case KubernetesOperations.GET_HPA_OPERATION: |
| doGetHPA(exchange, operation); |
| break; |
| |
| case KubernetesOperations.CREATE_HPA_OPERATION: |
| doCreateHPA(exchange, operation); |
| break; |
| |
| case KubernetesOperations.DELETE_HPA_OPERATION: |
| doDeleteHPA(exchange, operation); |
| break; |
| |
| default: |
| throw new IllegalArgumentException("Unsupported operation " + operation); |
| } |
| } |
| |
| protected void doList(Exchange exchange, String operation) throws Exception { |
| HorizontalPodAutoscalerList hpaList = getEndpoint().getKubernetesClient().autoscaling().horizontalPodAutoscalers().list(); |
| |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), true); |
| exchange.getOut().setBody(hpaList.getItems()); |
| } |
| |
| protected void doListHPAByLabel(Exchange exchange, String operation) { |
| Map<String, String> labels = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_LABELS, Map.class); |
| if (ObjectHelper.isEmpty(labels)) { |
| log.error("Get HPA by labels require specify a labels set"); |
| throw new IllegalArgumentException("Get HPA by labels require specify a labels set"); |
| } |
| |
| FilterWatchListMultiDeletable<HorizontalPodAutoscaler, HorizontalPodAutoscalerList, Boolean, Watch, Watcher<HorizontalPodAutoscaler>> hpas = getEndpoint() |
| .getKubernetesClient().autoscaling().horizontalPodAutoscalers(); |
| for (Map.Entry<String, String> entry : labels.entrySet()) { |
| hpas.withLabel(entry.getKey(), entry.getValue()); |
| } |
| HorizontalPodAutoscalerList hpaList = hpas.list(); |
| |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), true); |
| exchange.getOut().setBody(hpaList.getItems()); |
| } |
| |
| protected void doGetHPA(Exchange exchange, String operation) throws Exception { |
| HorizontalPodAutoscaler hpa = null; |
| String podName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_NAME, String.class); |
| String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class); |
| if (ObjectHelper.isEmpty(podName)) { |
| log.error("Get a specific hpa require specify an hpa name"); |
| throw new IllegalArgumentException("Get a specific hpa require specify an hpa name"); |
| } |
| if (ObjectHelper.isEmpty(namespaceName)) { |
| log.error("Get a specific hpa require specify a namespace name"); |
| throw new IllegalArgumentException("Get a specific hpa require specify a namespace name"); |
| } |
| hpa = getEndpoint().getKubernetesClient().autoscaling().horizontalPodAutoscalers().inNamespace(namespaceName).withName(podName).get(); |
| |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), true); |
| exchange.getOut().setBody(hpa); |
| } |
| |
| protected void doCreateHPA(Exchange exchange, String operation) throws Exception { |
| HorizontalPodAutoscaler hpa = null; |
| String hpaName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_NAME, String.class); |
| String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class); |
| HorizontalPodAutoscalerSpec hpaSpec = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_SPEC, HorizontalPodAutoscalerSpec.class); |
| if (ObjectHelper.isEmpty(hpaName)) { |
| log.error("Create a specific hpa require specify a hpa name"); |
| throw new IllegalArgumentException("Create a specific hpa require specify a hpa name"); |
| } |
| if (ObjectHelper.isEmpty(namespaceName)) { |
| log.error("Create a specific hpa require specify a namespace name"); |
| throw new IllegalArgumentException("Create a specific hpa require specify a namespace name"); |
| } |
| if (ObjectHelper.isEmpty(hpaSpec)) { |
| log.error("Create a specific hpa require specify a hpa spec bean"); |
| throw new IllegalArgumentException("Create a specific hpa require specify a hpa spec bean"); |
| } |
| Map<String, String> labels = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_LABELS, Map.class); |
| HorizontalPodAutoscaler hpaCreating = new HorizontalPodAutoscalerBuilder().withNewMetadata().withName(hpaName).withLabels(labels).endMetadata().withSpec(hpaSpec).build(); |
| hpa = getEndpoint().getKubernetesClient().autoscaling().horizontalPodAutoscalers().inNamespace(namespaceName).create(hpaCreating); |
| |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), true); |
| exchange.getOut().setBody(hpa); |
| } |
| |
| protected void doDeleteHPA(Exchange exchange, String operation) throws Exception { |
| String hpaName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_HPA_NAME, String.class); |
| String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class); |
| if (ObjectHelper.isEmpty(hpaName)) { |
| log.error("Delete a specific hpa require specify a hpa name"); |
| throw new IllegalArgumentException("Delete a specific hpa require specify a hpa name"); |
| } |
| if (ObjectHelper.isEmpty(namespaceName)) { |
| log.error("Delete a specific hpa require specify a namespace name"); |
| throw new IllegalArgumentException("Delete a specific hpa require specify a namespace name"); |
| } |
| boolean hpaDeleted = getEndpoint().getKubernetesClient().autoscaling().horizontalPodAutoscalers().inNamespace(namespaceName).withName(hpaName).delete(); |
| |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), true); |
| exchange.getOut().setBody(hpaDeleted); |
| } |
| } |