kafka MemberDescription 源码
kafka MemberDescription 代码
文件路径:/clients/src/main/java/org/apache/kafka/clients/admin/MemberDescription.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.clients.admin;
import java.util.Collections;
import java.util.Objects;
import java.util.Optional;
/**
* A detailed description of a single group instance in the cluster.
*/
public class MemberDescription {
private final String memberId;
private final Optional<String> groupInstanceId;
private final String clientId;
private final String host;
private final MemberAssignment assignment;
public MemberDescription(String memberId,
Optional<String> groupInstanceId,
String clientId,
String host,
MemberAssignment assignment) {
this.memberId = memberId == null ? "" : memberId;
this.groupInstanceId = groupInstanceId;
this.clientId = clientId == null ? "" : clientId;
this.host = host == null ? "" : host;
this.assignment = assignment == null ?
new MemberAssignment(Collections.emptySet()) : assignment;
}
public MemberDescription(String memberId,
String clientId,
String host,
MemberAssignment assignment) {
this(memberId, Optional.empty(), clientId, host, assignment);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
MemberDescription that = (MemberDescription) o;
return memberId.equals(that.memberId) &&
groupInstanceId.equals(that.groupInstanceId) &&
clientId.equals(that.clientId) &&
host.equals(that.host) &&
assignment.equals(that.assignment);
}
@Override
public int hashCode() {
return Objects.hash(memberId, groupInstanceId, clientId, host, assignment);
}
/**
* The consumer id of the group member.
*/
public String consumerId() {
return memberId;
}
/**
* The instance id of the group member.
*/
public Optional<String> groupInstanceId() {
return groupInstanceId;
}
/**
* The client id of the group member.
*/
public String clientId() {
return clientId;
}
/**
* The host where the group member is running.
*/
public String host() {
return host;
}
/**
* The assignment of the group member.
*/
public MemberAssignment assignment() {
return assignment;
}
@Override
public String toString() {
return "(memberId=" + memberId +
", groupInstanceId=" + groupInstanceId.orElse("null") +
", clientId=" + clientId +
", host=" + host +
", assignment=" + assignment + ")";
}
}
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