kafka DeleteRecordsRequest 源码

kafka DeleteRecordsRequest 代码

文件路径：/clients/src/main/java/org/apache/kafka/common/requests/DeleteRecordsRequest.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.DeleteRecordsRequestData;
import org.apache.kafka.common.message.DeleteRecordsRequestData.DeleteRecordsTopic;
import org.apache.kafka.common.message.DeleteRecordsResponseData;
import org.apache.kafka.common.message.DeleteRecordsResponseData.DeleteRecordsTopicResult;
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;

public class DeleteRecordsRequest extends AbstractRequest {

    public static final long HIGH_WATERMARK = -1L;

    private final DeleteRecordsRequestData data;

    public static class Builder extends AbstractRequest.Builder<DeleteRecordsRequest> {
        private DeleteRecordsRequestData data;

        public Builder(DeleteRecordsRequestData data) {
            super(ApiKeys.DELETE_RECORDS);
            this.data = data;
        }

        @Override
        public DeleteRecordsRequest build(short version) {
            return new DeleteRecordsRequest(data, version);
        }

        @Override
        public String toString() {
            return data.toString();
        }
    }

    private DeleteRecordsRequest(DeleteRecordsRequestData data, short version) {
        super(ApiKeys.DELETE_RECORDS, version);
        this.data = data;
    }

    @Override
    public DeleteRecordsRequestData data() {
        return data;
    }

    @Override
    public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e) {
        DeleteRecordsResponseData result = new DeleteRecordsResponseData().setThrottleTimeMs(throttleTimeMs);
        short errorCode = Errors.forException(e).code();
        for (DeleteRecordsTopic topic : data.topics()) {
            DeleteRecordsTopicResult topicResult = new DeleteRecordsTopicResult().setName(topic.name());
            result.topics().add(topicResult);
            for (DeleteRecordsRequestData.DeleteRecordsPartition partition : topic.partitions()) {
                topicResult.partitions().add(new DeleteRecordsResponseData.DeleteRecordsPartitionResult()
                        .setPartitionIndex(partition.partitionIndex())
                        .setErrorCode(errorCode)
                        .setLowWatermark(DeleteRecordsResponse.INVALID_LOW_WATERMARK));
            }
        }
        return new DeleteRecordsResponse(result);
    }

    public static DeleteRecordsRequest parse(ByteBuffer buffer, short version) {
        return new DeleteRecordsRequest(new DeleteRecordsRequestData(new ByteBufferAccessor(buffer), version), version);
    }
}

相关信息

kafka 源码目录

相关文章

kafka AbstractControlRequest 源码

kafka AbstractRequest 源码

kafka AbstractRequestResponse 源码

kafka AbstractResponse 源码

kafka AddOffsetsToTxnRequest 源码

kafka AddOffsetsToTxnResponse 源码

kafka AddPartitionsToTxnRequest 源码

kafka AddPartitionsToTxnResponse 源码

kafka AllocateProducerIdsRequest 源码

kafka AllocateProducerIdsResponse 源码