org.apache.camel.component.kubernetes.properties.ConfigMapPropertiesFunction Maven / Gradle / Ivy
/*
* 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.properties;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Base64;
import io.fabric8.kubernetes.api.model.ConfigMap;
import org.apache.camel.spi.PropertiesFunction;
/**
* A {@link PropertiesFunction} that can lookup from Kubernetes configmaps.
*/
@org.apache.camel.spi.annotations.PropertiesFunction("configmap")
public class ConfigMapPropertiesFunction extends BasePropertiesFunction {
@Override
public String getName() {
return "configmap";
}
@Override
Path getMountPath() {
if (getMountPathConfigMaps() != null) {
return Paths.get(getMountPathConfigMaps());
}
return null;
}
@Override
String lookup(String name, String key, String defaultValue) {
String answer = null;
ConfigMap cm = getClient().configMaps().withName(name).get();
if (cm != null) {
answer = cm.getData() != null ? cm.getData().get(key) : null;
if (answer == null) {
// maybe a binary data
answer = cm.getBinaryData() != null ? cm.getBinaryData().get(key) : null;
if (answer != null) {
// need to decode base64
byte[] data = Base64.getDecoder().decode(answer);
if (data != null) {
answer = new String(data);
}
}
}
}
if (answer == null) {
return defaultValue;
}
return answer;
}
}