kafka AlterPartitionReassignmentsRequest 源码

kafka AlterPartitionReassignmentsRequest 代码

文件路径：/clients/src/main/java/org/apache/kafka/common/requests/AlterPartitionReassignmentsRequest.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.AlterPartitionReassignmentsRequestData;
import org.apache.kafka.common.message.AlterPartitionReassignmentsRequestData.ReassignableTopic;
import org.apache.kafka.common.message.AlterPartitionReassignmentsResponseData;
import org.apache.kafka.common.message.AlterPartitionReassignmentsResponseData.ReassignablePartitionResponse;
import org.apache.kafka.common.message.AlterPartitionReassignmentsResponseData.ReassignableTopicResponse;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.ByteBufferAccessor;

import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class AlterPartitionReassignmentsRequest extends AbstractRequest {

    public static class Builder extends AbstractRequest.Builder<AlterPartitionReassignmentsRequest> {
        private final AlterPartitionReassignmentsRequestData data;

        public Builder(AlterPartitionReassignmentsRequestData data) {
            super(ApiKeys.ALTER_PARTITION_REASSIGNMENTS);
            this.data = data;
        }

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

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

    private final AlterPartitionReassignmentsRequestData data;

    private AlterPartitionReassignmentsRequest(AlterPartitionReassignmentsRequestData data, short version) {
        super(ApiKeys.ALTER_PARTITION_REASSIGNMENTS, version);
        this.data = data;
    }

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

    public AlterPartitionReassignmentsRequestData data() {
        return data;
    }

    @Override
    public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable e) {
        ApiError apiError = ApiError.fromThrowable(e);
        List<ReassignableTopicResponse> topicResponses = new ArrayList<>();

        for (ReassignableTopic topic : data.topics()) {
            List<ReassignablePartitionResponse> partitionResponses = topic.partitions().stream().map(partition ->
                    new ReassignablePartitionResponse()
                            .setPartitionIndex(partition.partitionIndex())
                            .setErrorCode(apiError.error().code())
                            .setErrorMessage(apiError.message())
            ).collect(Collectors.toList());
            topicResponses.add(
                    new ReassignableTopicResponse()
                            .setName(topic.name())
                            .setPartitions(partitionResponses)
            );
        }

        AlterPartitionReassignmentsResponseData responseData = new AlterPartitionReassignmentsResponseData()
                .setResponses(topicResponses)
                .setErrorCode(apiError.error().code())
                .setErrorMessage(apiError.message())
                .setThrottleTimeMs(throttleTimeMs);
        return new AlterPartitionReassignmentsResponse(responseData);
    }
}

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