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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.producer;
import java.util.Map;
import io.fabric8.kubernetes.api.model.DoneableNode;
import io.fabric8.kubernetes.api.model.Node;
import io.fabric8.kubernetes.api.model.NodeList;
import io.fabric8.kubernetes.client.dsl.ClientNonNamespaceOperation;
import io.fabric8.kubernetes.client.dsl.ClientResource;
import org.apache.camel.Exchange;
import org.apache.camel.component.kubernetes.KubernetesConstants;
import org.apache.camel.component.kubernetes.KubernetesEndpoint;
import org.apache.camel.impl.DefaultProducer;
import org.apache.camel.util.ObjectHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class KubernetesNodesProducer extends DefaultProducer {
private static final Logger LOG = LoggerFactory.getLogger(KubernetesNodesProducer.class);
public KubernetesNodesProducer(KubernetesEndpoint endpoint) {
super(endpoint);
}
@Override
public KubernetesEndpoint getEndpoint() {
return (KubernetesEndpoint) 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_NODES:
doList(exchange, operation);
break;
case KubernetesOperations.LIST_NODES_BY_LABELS_OPERATION:
doListNodesByLabels(exchange, operation);
break;
case KubernetesOperations.GET_NODE_OPERATION:
doGetNode(exchange, operation);
break;
default:
throw new IllegalArgumentException("Unsupported operation " + operation);
}
}
protected void doList(Exchange exchange, String operation) throws Exception {
NodeList nodeList = getEndpoint().getKubernetesClient().nodes().list();
exchange.getOut().setBody(nodeList.getItems());
}
protected void doListNodesByLabels(Exchange exchange, String operation) throws Exception {
NodeList nodeList = null;
Map<String, String> labels = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NODES_LABELS, Map.class);
ClientNonNamespaceOperation<Node, NodeList, DoneableNode, ClientResource<Node, DoneableNode>> nodes = getEndpoint().getKubernetesClient().nodes();
for (Map.Entry<String, String> entry : labels.entrySet()) {
nodes.withLabel(entry.getKey(), entry.getValue());
}
nodeList = nodes.list();
exchange.getOut().setBody(nodeList.getItems());
}
protected void doGetNode(Exchange exchange, String operation) throws Exception {
Node node = null;
String pvName = exchange.getIn().getHeader(KubernetesConstants.KUBERNETES_NODE_NAME, String.class);
if (ObjectHelper.isEmpty(pvName)) {
LOG.error("Get a specific Node require specify a Node name");
throw new IllegalArgumentException("Get a specific Node require specify a Node name");
}
node = getEndpoint().getKubernetesClient().nodes().withName(pvName).get();
exchange.getOut().setBody(node);
}
}