org.apache.kafka.image.node.ClusterImageNode 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.kafka.image.node;
import org.apache.kafka.image.ClusterImage;
import org.apache.kafka.metadata.BrokerRegistration;
import java.util.ArrayList;
import java.util.Collection;
public class ClusterImageNode implements MetadataNode {
/**
* The name of this node.
*/
public final static String NAME = "cluster";
/**
* The cluster image.
*/
private final ClusterImage image;
public ClusterImageNode(ClusterImage image) {
this.image = image;
}
@Override
public Collection childNames() {
ArrayList childNames = new ArrayList<>();
for (Integer brokerId : image.brokers().keySet()) {
childNames.add(brokerId.toString());
}
return childNames;
}
@Override
public MetadataNode child(String name) {
try {
Integer brokerId = Integer.valueOf(name);
BrokerRegistration registration = image.brokers().get(brokerId);
if (registration == null) return null;
return new MetadataLeafNode(registration.toString());
} catch (NumberFormatException e) {
return null;
}
}
}