kafka OffsetsForLeaderEpochResponse 源码
kafka OffsetsForLeaderEpochResponse 代码
文件路径:/clients/src/main/java/org/apache/kafka/common/requests/OffsetsForLeaderEpochResponse.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.message.OffsetForLeaderEpochResponseData;
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.HashMap;
import java.util.Map;
import static org.apache.kafka.common.record.RecordBatch.NO_PARTITION_LEADER_EPOCH;
/**
* Possible error codes:
* - {@link Errors#TOPIC_AUTHORIZATION_FAILED} If the user does not have DESCRIBE access to a requested topic
* - {@link Errors#REPLICA_NOT_AVAILABLE} If the request is received by a broker with version < 2.6 which is not a replica
* - {@link Errors#NOT_LEADER_OR_FOLLOWER} If the broker is not a leader or follower and either the provided leader epoch
* matches the known leader epoch on the broker or is empty
* - {@link Errors#FENCED_LEADER_EPOCH} If the epoch is lower than the broker's epoch
* - {@link Errors#UNKNOWN_LEADER_EPOCH} If the epoch is larger than the broker's epoch
* - {@link Errors#UNKNOWN_TOPIC_OR_PARTITION} If the broker does not have metadata for a topic or partition
* - {@link Errors#KAFKA_STORAGE_ERROR} If the log directory for one of the requested partitions is offline
* - {@link Errors#UNKNOWN_SERVER_ERROR} For any unexpected errors
*/
public class OffsetsForLeaderEpochResponse extends AbstractResponse {
public static final long UNDEFINED_EPOCH_OFFSET = NO_PARTITION_LEADER_EPOCH;
public static final int UNDEFINED_EPOCH = NO_PARTITION_LEADER_EPOCH;
private final OffsetForLeaderEpochResponseData data;
public OffsetsForLeaderEpochResponse(OffsetForLeaderEpochResponseData data) {
super(ApiKeys.OFFSET_FOR_LEADER_EPOCH);
this.data = data;
}
@Override
public OffsetForLeaderEpochResponseData data() {
return data;
}
@Override
public Map<Errors, Integer> errorCounts() {
Map<Errors, Integer> errorCounts = new HashMap<>();
data.topics().forEach(topic ->
topic.partitions().forEach(partition ->
updateErrorCounts(errorCounts, Errors.forCode(partition.errorCode()))));
return errorCounts;
}
public int throttleTimeMs() {
return data.throttleTimeMs();
}
@Override
public void maybeSetThrottleTimeMs(int throttleTimeMs) {
data.setThrottleTimeMs(throttleTimeMs);
}
public static OffsetsForLeaderEpochResponse parse(ByteBuffer buffer, short version) {
return new OffsetsForLeaderEpochResponse(new OffsetForLeaderEpochResponseData(new ByteBufferAccessor(buffer), version));
}
@Override
public String toString() {
return data.toString();
}
}
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