common.message.DescribeGroupsResponse.json Maven / Gradle / Ivy

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// 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.

{
  "apiKey": 15,
  "type": "response",
  "name": "DescribeGroupsResponse",
  // Version 1 added throttle time.
  //
  // Starting in version 2, on quota violation, brokers send out responses before throttling.
  //
  // Starting in version 3, brokers can send authorized operations.
  //
  // Starting in version 4, the response will optionally include group.instance.id info for members.
  //
  // Version 5 is the first flexible version.
  "validVersions": "0-5",
  "flexibleVersions": "5+",
  "fields": [
    { "name": "ThrottleTimeMs", "type": "int32", "versions": "1+", "ignorable": true,
      "about": "The duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota." },
    { "name": "Groups", "type": "[]DescribedGroup", "versions": "0+",
      "about": "Each described group.", "fields": [
      { "name": "ErrorCode", "type": "int16", "versions": "0+",
        "about": "The describe error, or 0 if there was no error." },
      { "name": "GroupId", "type": "string", "versions": "0+", "entityType": "groupId",
        "about": "The group ID string." },
      { "name": "GroupState", "type": "string", "versions": "0+",
        "about": "The group state string, or the empty string." },
      { "name": "ProtocolType", "type": "string", "versions": "0+",
        "about": "The group protocol type, or the empty string." },
      // ProtocolData is currently only filled in if the group state is in the Stable state.
      { "name": "ProtocolData", "type": "string", "versions": "0+",
        "about": "The group protocol data, or the empty string." },
      // N.B. If the group is in the Dead state, the members array will always be empty.
      { "name": "Members", "type": "[]DescribedGroupMember", "versions": "0+",
        "about": "The group members.", "fields": [
        { "name": "MemberId", "type": "string", "versions": "0+",
          "about": "The member ID assigned by the group coordinator." },
        { "name": "GroupInstanceId", "type": "string", "versions": "4+", "ignorable": true,
          "nullableVersions": "4+", "default": "null",
          "about": "The unique identifier of the consumer instance provided by end user." },
        { "name": "ClientId", "type": "string", "versions": "0+",
          "about": "The client ID used in the member's latest join group request." },
        { "name": "ClientHost", "type": "string", "versions": "0+",
          "about": "The client host." },
        // This is currently only provided if the group is in the Stable state.
        { "name": "MemberMetadata", "type": "bytes", "versions": "0+",
          "about": "The metadata corresponding to the current group protocol in use." },
        // This is currently only provided if the group is in the Stable state.
        { "name": "MemberAssignment", "type": "bytes", "versions": "0+",
          "about": "The current assignment provided by the group leader." }
      ]},
      { "name": "AuthorizedOperations", "type": "int32", "versions": "3+",  "default": "-2147483648",
        "about": "32-bit bitfield to represent authorized operations for this group." }
    ]}
  ]
}