kafka ClusterResource 源码
kafka ClusterResource 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/ClusterResource.java
/*
* 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.common;
import java.util.Objects;
/**
* The <code>ClusterResource</code> class encapsulates metadata for a Kafka cluster.
*/
public class ClusterResource {
private final String clusterId;
/**
* Create {@link ClusterResource} with a cluster id. Note that cluster id may be {@code null} if the
* metadata request was sent to a broker without support for cluster ids. The first version of Kafka
* to support cluster id is 0.10.1.0.
* @param clusterId
*/
public ClusterResource(String clusterId) {
this.clusterId = clusterId;
}
/**
* Return the cluster id. Note that it may be {@code null} if the metadata request was sent to a broker without
* support for cluster ids. The first version of Kafka to support cluster id is 0.10.1.0.
*/
public String clusterId() {
return clusterId;
}
@Override
public String toString() {
return "ClusterResource(clusterId=" + clusterId + ")";
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ClusterResource that = (ClusterResource) o;
return Objects.equals(clusterId, that.clusterId);
}
@Override
public int hashCode() {
return Objects.hash(clusterId);
}
}
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