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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.DoneableNamespace;
import io.fabric8.kubernetes.api.model.EditableNamespace;
import io.fabric8.kubernetes.api.model.Namespace;
import io.fabric8.kubernetes.api.model.NamespaceBuilder;
import io.fabric8.kubernetes.api.model.NamespaceList;
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 KubernetesNamespacesProducer extends DefaultProducer {
private static final Logger LOG = LoggerFactory
.getLogger(KubernetesNamespacesProducer.class);
public KubernetesNamespacesProducer(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_NAMESPACE_OPERATION:
doList(exchange, operation);
break;
case KubernetesOperations.LIST_NAMESPACE_BY_LABELS_OPERATION:
doListNamespaceByLabel(exchange, operation);
break;
case KubernetesOperations.GET_NAMESPACE_OPERATION:
doGetNamespace(exchange, operation);
break;
case KubernetesOperations.CREATE_NAMESPACE_OPERATION:
doCreateNamespace(exchange, operation);
break;
case KubernetesOperations.DELETE_NAMESPACE_OPERATION:
doDeleteNamespace(exchange, operation);
break;
default:
throw new IllegalArgumentException("Unsupported operation "
+ operation);
}
}
protected void doList(Exchange exchange, String operation) throws Exception {
NamespaceList namespacesList = getEndpoint().getKubernetesClient()
.namespaces().list();
exchange.getOut().setBody(namespacesList.getItems());
}
protected void doListNamespaceByLabel(Exchange exchange, String operation) {
Map<String, String> labels = exchange.getIn().getHeader(
KubernetesConstants.KUBERNETES_NAMESPACE_LABELS, Map.class);
if (ObjectHelper.isEmpty(labels)) {
LOG.error("Get a specific namespace by labels require specify a labels set");
throw new IllegalArgumentException(
"Get a specific namespace by labels require specify a labels set");
}
ClientNonNamespaceOperation<Namespace, NamespaceList, DoneableNamespace, ClientResource<Namespace, DoneableNamespace>> namespaces = getEndpoint().getKubernetesClient().namespaces();
for (Map.Entry<String, String> entry : labels.entrySet()) {
namespaces.withLabel(entry.getKey(), entry.getValue());
}
NamespaceList namespace = namespaces.list();
exchange.getOut().setBody(namespace.getItems());
}
protected void doGetNamespace(Exchange exchange, String operation) {
String namespaceName = exchange.getIn().getHeader(
KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("Get a specific namespace require specify a namespace name");
throw new IllegalArgumentException(
"Get a specific namespace require specify a namespace name");
}
Namespace namespace = getEndpoint().getKubernetesClient().namespaces()
.withName(namespaceName).get();
exchange.getOut().setBody(namespace);
}
protected void doCreateNamespace(Exchange exchange, String operation) {
String namespaceName = exchange.getIn().getHeader(
KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("Create a specific namespace require specify a namespace name");
throw new IllegalArgumentException(
"Create a specific namespace require specify a namespace name");
}
Map<String, String> labels = exchange.getIn().getHeader(
KubernetesConstants.KUBERNETES_NAMESPACE_LABELS, Map.class);
EditableNamespace ns = new NamespaceBuilder().withNewMetadata()
.withName(namespaceName).withLabels(labels).endMetadata()
.build();
Namespace namespace = getEndpoint().getKubernetesClient().namespaces()
.create(ns);
exchange.getOut().setBody(namespace);
}
protected void doDeleteNamespace(Exchange exchange, String operation) {
String namespaceName = exchange.getIn().getHeader(
KubernetesConstants.KUBERNETES_NAMESPACE_NAME, String.class);
if (ObjectHelper.isEmpty(namespaceName)) {
LOG.error("Delete a specific namespace require specify a namespace name");
throw new IllegalArgumentException(
"Delete a specific namespace require specify a namespace name");
}
Boolean namespace = getEndpoint().getKubernetesClient().namespaces()
.withName(namespaceName).delete();
exchange.getOut().setBody(namespace);
}
}