org.apache.kafka.shell.state.MetadataShellPublisher 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.shell.state;
import org.apache.kafka.image.MetadataDelta;
import org.apache.kafka.image.MetadataImage;
import org.apache.kafka.image.loader.LoaderManifest;
import org.apache.kafka.image.publisher.MetadataPublisher;
import org.apache.kafka.shell.node.RootShellNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Publishes changes to the Kafka Metadata Shell.
*/
public class MetadataShellPublisher implements MetadataPublisher {
private static final Logger log = LoggerFactory.getLogger(MetadataShellPublisher.class);
private final MetadataShellState state;
public MetadataShellPublisher(MetadataShellState state) {
this.state = state;
}
@Override
public String name() {
return "MetadataShellPublisher";
}
@Override
public void onMetadataUpdate(
MetadataDelta delta,
MetadataImage newImage,
LoaderManifest manifest
) {
log.trace("onMetadataUpdate newImage={}", newImage);
state.setRoot(new RootShellNode(newImage));
}
public MetadataShellState state() {
return state;
}
}