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from __future__ import absolute_import
from .api import Request, Response
from .message import MessageSet
from .types import Array, Int16, Int32, Int64, Schema, String
class FetchResponse_v0(Response):
API_KEY = 1
API_VERSION = 0
SCHEMA = Schema(
('topics', Array(
('topics', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('highwater_offset', Int64),
('message_set', MessageSet)))))
)
class FetchResponse_v1(Response):
API_KEY = 1
API_VERSION = 1
SCHEMA = Schema(
('throttle_time_ms', Int32),
('topics', Array(
('topics', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('highwater_offset', Int64),
('message_set', MessageSet)))))
)
class FetchResponse_v2(Response):
API_KEY = 1
API_VERSION = 2
SCHEMA = FetchResponse_v1.SCHEMA # message format changed internally
class FetchResponse_v3(Response):
API_KEY = 1
API_VERSION = 3
SCHEMA = FetchResponse_v2.SCHEMA
class FetchRequest_v0(Request):
API_KEY = 1
API_VERSION = 0
RESPONSE_TYPE = FetchResponse_v0
SCHEMA = Schema(
('replica_id', Int32),
('max_wait_time', Int32),
('min_bytes', Int32),
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('offset', Int64),
('max_bytes', Int32)))))
)
class FetchRequest_v1(Request):
API_KEY = 1
API_VERSION = 1
RESPONSE_TYPE = FetchResponse_v1
SCHEMA = FetchRequest_v0.SCHEMA
class FetchRequest_v2(Request):
API_KEY = 1
API_VERSION = 2
RESPONSE_TYPE = FetchResponse_v2
SCHEMA = FetchRequest_v1.SCHEMA
class FetchRequest_v3(Request):
API_KEY = 1
API_VERSION = 3
RESPONSE_TYPE = FetchResponse_v3
SCHEMA = Schema(
('replica_id', Int32),
('max_wait_time', Int32),
('min_bytes', Int32),
('max_bytes', Int32), # This new field is only difference from FR_v2
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('offset', Int64),
('max_bytes', Int32)))))
)
FetchRequest = [FetchRequest_v0, FetchRequest_v1, FetchRequest_v2,
FetchRequest_v3]
FetchResponse = [FetchResponse_v0, FetchResponse_v1, FetchResponse_v2,
FetchResponse_v3]
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