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An Elixir implementation of the Kafka protocol. It enables communication with Kafka brokers using standard Elixir data structures without the need for manual serialization.

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klife_protocol lib klife_protocol generated messages describe_cluster.ex
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lib/klife_protocol/generated/messages/describe_cluster.ex

# DO NOT EDIT THIS FILE MANUALLY
# This module is automatically generated by running mix task generate_file
# every change must be done inside the mix task directly
defmodule KlifeProtocol.Messages.DescribeCluster do
@moduledoc """
Kafka protocol DescribeCluster message
Request versions summary:
Response versions summary:
"""
alias KlifeProtocol.Deserializer
alias KlifeProtocol.Serializer
alias KlifeProtocol.Header
@api_key 60
@min_flexible_version_req 0
@min_flexible_version_res 0
@doc """
Receives a map and serialize it to kafka wire format of the given version.
Input content fields:
- include_cluster_authorized_operations: Whether to include cluster authorized operations. (bool | versions 0+)
"""
def serialize_request(%{headers: headers, content: content}, version) do
headers
|> Map.put(:request_api_key, @api_key)
|> Map.put(:request_api_version, version)
|> Header.serialize_request(req_header_version(version))
|> then(&Serializer.execute(content, request_schema(version), &1))
end
@doc """
Receive a binary in the kafka wire format and deserialize it into a map.
Response content fields:
- throttle_time_ms: 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. (int32 | versions 0+)
- error_code: The top-level error code, or 0 if there was no error (int16 | versions 0+)
- error_message: The top-level error message, or null if there was no error. (string | versions 0+)
- cluster_id: The cluster ID that responding broker belongs to. (string | versions 0+)
- controller_id: The ID of the controller broker. (int32 | versions 0+)
- brokers: Each broker in the response. ([]DescribeClusterBroker | versions 0+)
- broker_id: The broker ID. (int32 | versions 0+)
- host: The broker hostname. (string | versions 0+)
- port: The broker port. (int32 | versions 0+)
- rack: The rack of the broker, or null if it has not been assigned to a rack. (string | versions 0+)
- cluster_authorized_operations: 32-bit bitfield to represent authorized operations for this cluster. (int32 | versions 0+)
"""
def deserialize_response(data, version, with_header? \\ true)
def deserialize_response(data, version, true) do
{:ok, {headers, rest_data}} = Header.deserialize_response(data, res_header_version(version))
case Deserializer.execute(rest_data, response_schema(version)) do
{:ok, {content, <<>>}} ->
{:ok, %{headers: headers, content: content}}
{:error, _reason} = err ->
err
end
end
def deserialize_response(data, version, false) do
case Deserializer.execute(data, response_schema(version)) do
{:ok, {content, <<>>}} ->
{:ok, %{content: content}}
{:error, _reason} = err ->
err
end
end
@doc """
Returns the current max supported version of this message.
"""
def max_supported_version(), do: 0
@doc """
Returns the current min supported version of this message.
"""
def min_supported_version(), do: 0
defp req_header_version(msg_version),
do: if(msg_version >= @min_flexible_version_req, do: 2, else: 1)
defp res_header_version(msg_version),
do: if(msg_version >= @min_flexible_version_res, do: 1, else: 0)
defp request_schema(0),
do: [
include_cluster_authorized_operations: {:boolean, %{is_nullable?: false}},
tag_buffer: {:tag_buffer, []}
]
defp request_schema(unkown_version),
do: raise("Unknown version #{unkown_version} for message DescribeCluster")
defp response_schema(0),
do: [
throttle_time_ms: {:int32, %{is_nullable?: false}},
error_code: {:int16, %{is_nullable?: false}},
error_message: {:compact_string, %{is_nullable?: true}},
cluster_id: {:compact_string, %{is_nullable?: false}},
controller_id: {:int32, %{is_nullable?: false}},
brokers:
{{:compact_array,
[
broker_id: {:int32, %{is_nullable?: false}},
host: {:compact_string, %{is_nullable?: false}},
port: {:int32, %{is_nullable?: false}},
rack: {:compact_string, %{is_nullable?: true}},
tag_buffer: {:tag_buffer, %{}}
]}, %{is_nullable?: false}},
cluster_authorized_operations: {:int32, %{is_nullable?: false}},
tag_buffer: {:tag_buffer, %{}}
]
defp response_schema(unkown_version),
do: raise("Unknown version #{unkown_version} for message DescribeCluster")
end