kafka ConsumerGroupState 源码
kafka ConsumerGroupState 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/ConsumerGroupState.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.Arrays;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* The consumer group state.
*/
public enum ConsumerGroupState {
UNKNOWN("Unknown"),
PREPARING_REBALANCE("PreparingRebalance"),
COMPLETING_REBALANCE("CompletingRebalance"),
STABLE("Stable"),
DEAD("Dead"),
EMPTY("Empty");
private final static Map<String, ConsumerGroupState> NAME_TO_ENUM = Arrays.stream(values())
.collect(Collectors.toMap(state -> state.name, Function.identity()));;
private final String name;
ConsumerGroupState(String name) {
this.name = name;
}
/**
* Parse a string into a consumer group state.
*/
public static ConsumerGroupState parse(String name) {
ConsumerGroupState state = NAME_TO_ENUM.get(name);
return state == null ? UNKNOWN : state;
}
@Override
public String toString() {
return name;
}
}
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