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/*
* 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.job;
import java.util.Map;
import java.util.function.Function;
import io.fabric8.kubernetes.api.model.batch.v1.Job;
import io.fabric8.kubernetes.api.model.batch.v1.JobBuilder;
import io.fabric8.kubernetes.api.model.batch.v1.JobList;
import io.fabric8.kubernetes.api.model.batch.v1.JobSpec;
import io.fabric8.kubernetes.client.dsl.MixedOperation;
import io.fabric8.kubernetes.client.dsl.Resource;
import io.fabric8.kubernetes.client.dsl.ScalableResource;
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;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.apache.camel.component.kubernetes.KubernetesHelper.prepareOutboundMessage;
public class KubernetesJobProducer extends DefaultProducer {
private static final Logger LOG = LoggerFactory.getLogger(KubernetesJobProducer.class);
public KubernetesJobProducer(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_JOB:
doList(exchange);
break;
case KubernetesOperations.LIST_JOB_BY_LABELS_OPERATION:
doListJobByLabel(exchange);
break;
case KubernetesOperations.GET_JOB_OPERATION:
doGetJob(exchange);
break;
case KubernetesOperations.CREATE_JOB_OPERATION:
doCreateJob(exchange);
break;
case KubernetesOperations.UPDATE_JOB_OPERATION:
doUpdateJob(exchange);
break;
case KubernetesOperations.DELETE_JOB_OPERATION:
doDeleteJob(exchange);
break;
default:
throw new IllegalArgumentException("Unsupported operation " + operation);
}
}
protected void doList(Exchange exchange) {
JobList jobList = getEndpoint().getKubernetesClient().batch().v1().jobs().list();
prepareOutboundMessage(exchange, jobList.getItems());
}
protected void doListJobByLabel(Exchange exchange) {
Map labels = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_LABELS, Map.class);
if (ObjectHelper.isEmpty(labels)) {
LOG.error("Get Job by labels require specify a labels set");
throw new IllegalArgumentException("Get Job by labels require specify a labels set");
}
MixedOperation> jobs = getEndpoint().getKubernetesClient().batch().v1().jobs();
JobList jobList = jobs.withLabels(labels).list();
prepareOutboundMessage(exchange, jobList.getItems());
}
protected void doGetJob(Exchange exchange) {
String jobName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_NAME, String.class);
String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
if (ObjectHelper.isEmpty(jobName)) {
LOG.error("Get a specific job require specify a job name");
throw new IllegalArgumentException("Get a specific job require specify a job name");
}
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("Get a specific job require specify a namespace name");
throw new IllegalArgumentException("Get a specific job require specify a namespace name");
}
Job job = getEndpoint().getKubernetesClient().batch().v1().jobs().inNamespace(namespaceName).withName(jobName).get();
prepareOutboundMessage(exchange, job);
}
protected void doUpdateJob(Exchange exchange) {
doCreateOrUpdateJob(exchange, "Update", Resource::update);
}
protected void doCreateJob(Exchange exchange) {
doCreateOrUpdateJob(exchange, "Create", Resource::create);
}
private void doCreateOrUpdateJob(Exchange exchange, String operationName, Function, Job> operation) {
String jobName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_NAME, String.class);
String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
JobSpec jobSpec = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_SPEC, JobSpec.class);
if (ObjectHelper.isEmpty(jobName)) {
LOG.error("{} a specific job require specify a job name", operationName);
throw new IllegalArgumentException(String.format("%s a specific job require specify a job name", operationName));
}
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("{} a specific job require specify a namespace name", operationName);
throw new IllegalArgumentException(
String.format("%s a specific job require specify a namespace name", operationName));
}
if (ObjectHelper.isEmpty(jobSpec)) {
LOG.error("{} a specific job require specify a hpa spec bean", operationName);
throw new IllegalArgumentException(
String.format("%s a specific job require specify a hpa spec bean", operationName));
}
Map labels = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_LABELS, Map.class);
Job jobCreating = new JobBuilder().withNewMetadata().withName(jobName).withLabels(labels).endMetadata()
.withSpec(jobSpec).build();
Job job = operation.apply(
getEndpoint().getKubernetesClient().batch().v1().jobs().inNamespace(namespaceName).resource(jobCreating));
prepareOutboundMessage(exchange, job);
}
protected void doDeleteJob(Exchange exchange) {
String jobName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_JOB_NAME, String.class);
String namespaceName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
if (ObjectHelper.isEmpty(jobName)) {
LOG.error("Delete a specific job require specify a job name");
throw new IllegalArgumentException("Delete a specific job require specify a job name");
}
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("Delete a specific job require specify a namespace name");
throw new IllegalArgumentException("Delete a specific job require specify a namespace name");
}
getEndpoint().getKubernetesClient().batch().v1().jobs().inNamespace(namespaceName).withName(jobName).delete();
MessageHelper.copyHeaders(exchange.getIn(), exchange.getMessage(), true);
}
}
