kafka VoteResponse 源码
kafka VoteResponse 代码
文件路径:/clients/src/main/java/org/apache/kafka/common/requests/VoteResponse.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.requests;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.common.message.VoteResponseData;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.ByteBufferAccessor;
import org.apache.kafka.common.protocol.Errors;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* Possible error codes.
*
* Top level errors:
* - {@link Errors#CLUSTER_AUTHORIZATION_FAILED}
* - {@link Errors#BROKER_NOT_AVAILABLE}
*
* Partition level errors:
* - {@link Errors#FENCED_LEADER_EPOCH}
* - {@link Errors#INVALID_REQUEST}
* - {@link Errors#INCONSISTENT_VOTER_SET}
* - {@link Errors#UNKNOWN_TOPIC_OR_PARTITION}
*/
public class VoteResponse extends AbstractResponse {
private final VoteResponseData data;
public VoteResponse(VoteResponseData data) {
super(ApiKeys.VOTE);
this.data = data;
}
public static VoteResponseData singletonResponse(Errors topLevelError,
TopicPartition topicPartition,
Errors partitionLevelError,
int leaderEpoch,
int leaderId,
boolean voteGranted) {
return new VoteResponseData()
.setErrorCode(topLevelError.code())
.setTopics(Collections.singletonList(
new VoteResponseData.TopicData()
.setTopicName(topicPartition.topic())
.setPartitions(Collections.singletonList(
new VoteResponseData.PartitionData()
.setErrorCode(partitionLevelError.code())
.setLeaderId(leaderId)
.setLeaderEpoch(leaderEpoch)
.setVoteGranted(voteGranted)))));
}
@Override
public Map<Errors, Integer> errorCounts() {
Map<Errors, Integer> errors = new HashMap<>();
errors.put(Errors.forCode(data.errorCode()), 1);
for (VoteResponseData.TopicData topicResponse : data.topics()) {
for (VoteResponseData.PartitionData partitionResponse : topicResponse.partitions()) {
updateErrorCounts(errors, Errors.forCode(partitionResponse.errorCode()));
}
}
return errors;
}
@Override
public VoteResponseData data() {
return data;
}
@Override
public int throttleTimeMs() {
return DEFAULT_THROTTLE_TIME;
}
@Override
public void maybeSetThrottleTimeMs(int throttleTimeMs) {
// Not supported by the response schema
}
public static VoteResponse parse(ByteBuffer buffer, short version) {
return new VoteResponse(new VoteResponseData(new ByteBufferAccessor(buffer), version));
}
}
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