kafka DescribeLogDirsResponse 源码

kafka DescribeLogDirsResponse 代码

文件路径：/clients/src/main/java/org/apache/kafka/common/requests/DescribeLogDirsResponse.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.DescribeLogDirsResponseData;
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;


public class DescribeLogDirsResponse extends AbstractResponse {

    public static final long INVALID_OFFSET_LAG = -1L;
    public static final long UNKNOWN_VOLUME_BYTES = -1L;

    private final DescribeLogDirsResponseData data;

    public DescribeLogDirsResponse(DescribeLogDirsResponseData data) {
        super(ApiKeys.DESCRIBE_LOG_DIRS);
        this.data = data;
    }

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

    @Override
    public int throttleTimeMs() {
        return data.throttleTimeMs();
    }

    @Override
    public void maybeSetThrottleTimeMs(int throttleTimeMs) {
        data.setThrottleTimeMs(throttleTimeMs);
    }

    @Override
    public Map<Errors, Integer> errorCounts() {
        Map<Errors, Integer> errorCounts = new HashMap<>();
        errorCounts.put(Errors.forCode(data.errorCode()), 1);
        data.results().forEach(result -> {
            updateErrorCounts(errorCounts, Errors.forCode(result.errorCode()));
        });
        return errorCounts;
    }

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

    // Note this class is part of the public API, reachable from Admin.describeLogDirs()
    /**
     * Possible error code:
     *
     * KAFKA_STORAGE_ERROR (56)
     * UNKNOWN (-1)
     *
     * @deprecated Deprecated Since Kafka 2.7.
     * Use {@link org.apache.kafka.clients.admin.DescribeLogDirsResult#descriptions()}
     * and {@link org.apache.kafka.clients.admin.DescribeLogDirsResult#allDescriptions()} to access the replacement
     * class {@link org.apache.kafka.clients.admin.LogDirDescription}.
     */
    @Deprecated
    static public class LogDirInfo {
        public final Errors error;
        public final Map<TopicPartition, ReplicaInfo> replicaInfos;

        public LogDirInfo(Errors error, Map<TopicPartition, ReplicaInfo> replicaInfos) {
            this.error = error;
            this.replicaInfos = replicaInfos;
        }

        @Override
        public String toString() {
            StringBuilder builder = new StringBuilder();
            builder.append("(error=")
                    .append(error)
                    .append(", replicas=")
                    .append(replicaInfos)
                    .append(")");
            return builder.toString();
        }
    }

    // Note this class is part of the public API, reachable from Admin.describeLogDirs()

    /**
     * @deprecated Deprecated Since Kafka 2.7.
     * Use {@link org.apache.kafka.clients.admin.DescribeLogDirsResult#descriptions()}
     * and {@link org.apache.kafka.clients.admin.DescribeLogDirsResult#allDescriptions()} to access the replacement
     * class {@link org.apache.kafka.clients.admin.ReplicaInfo}.
     */
    @Deprecated
    static public class ReplicaInfo {

        public final long size;
        public final long offsetLag;
        public final boolean isFuture;

        public ReplicaInfo(long size, long offsetLag, boolean isFuture) {
            this.size = size;
            this.offsetLag = offsetLag;
            this.isFuture = isFuture;
        }

        @Override
        public String toString() {
            StringBuilder builder = new StringBuilder();
            builder.append("(size=")
                .append(size)
                .append(", offsetLag=")
                .append(offsetLag)
                .append(", isFuture=")
                .append(isFuture)
                .append(")");
            return builder.toString();
        }
    }

    @Override
    public boolean shouldClientThrottle(short version) {
        return version >= 1;
    }
}

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