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from __future__ import absolute_import
from kafka.protocol.api import Request, Response
from kafka.protocol.types import Array, Int8, Int16, Int32, Int64, Schema, String
UNKNOWN_OFFSET = -1
class OffsetResetStrategy(object):
LATEST = -1
EARLIEST = -2
NONE = 0
class OffsetResponse_v0(Response):
API_KEY = 2
API_VERSION = 0
SCHEMA = Schema(
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('offsets', Array(Int64))))))
)
class OffsetResponse_v1(Response):
API_KEY = 2
API_VERSION = 1
SCHEMA = Schema(
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('timestamp', Int64),
('offset', Int64)))))
)
class OffsetResponse_v2(Response):
API_KEY = 2
API_VERSION = 2
SCHEMA = Schema(
('throttle_time_ms', Int32),
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('timestamp', Int64),
('offset', Int64)))))
)
class OffsetResponse_v3(Response):
"""
on quota violation, brokers send out responses before throttling
"""
API_KEY = 2
API_VERSION = 3
SCHEMA = OffsetResponse_v2.SCHEMA
class OffsetResponse_v4(Response):
"""
Add leader_epoch to response
"""
API_KEY = 2
API_VERSION = 4
SCHEMA = Schema(
('throttle_time_ms', Int32),
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('error_code', Int16),
('timestamp', Int64),
('offset', Int64),
('leader_epoch', Int32)))))
)
class OffsetResponse_v5(Response):
"""
adds a new error code, OFFSET_NOT_AVAILABLE
"""
API_KEY = 2
API_VERSION = 5
SCHEMA = OffsetResponse_v4.SCHEMA
class OffsetRequest_v0(Request):
API_KEY = 2
API_VERSION = 0
RESPONSE_TYPE = OffsetResponse_v0
SCHEMA = Schema(
('replica_id', Int32),
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('timestamp', Int64),
('max_offsets', Int32)))))
)
DEFAULTS = {
'replica_id': -1
}
class OffsetRequest_v1(Request):
API_KEY = 2
API_VERSION = 1
RESPONSE_TYPE = OffsetResponse_v1
SCHEMA = Schema(
('replica_id', Int32),
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('timestamp', Int64)))))
)
DEFAULTS = {
'replica_id': -1
}
class OffsetRequest_v2(Request):
API_KEY = 2
API_VERSION = 2
RESPONSE_TYPE = OffsetResponse_v2
SCHEMA = Schema(
('replica_id', Int32),
('isolation_level', Int8), # <- added isolation_level
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('timestamp', Int64)))))
)
DEFAULTS = {
'replica_id': -1
}
class OffsetRequest_v3(Request):
API_KEY = 2
API_VERSION = 3
RESPONSE_TYPE = OffsetResponse_v3
SCHEMA = OffsetRequest_v2.SCHEMA
DEFAULTS = {
'replica_id': -1
}
class OffsetRequest_v4(Request):
"""
Add current_leader_epoch to request
"""
API_KEY = 2
API_VERSION = 4
RESPONSE_TYPE = OffsetResponse_v4
SCHEMA = Schema(
('replica_id', Int32),
('isolation_level', Int8), # <- added isolation_level
('topics', Array(
('topic', String('utf-8')),
('partitions', Array(
('partition', Int32),
('current_leader_epoch', Int64),
('timestamp', Int64)))))
)
DEFAULTS = {
'replica_id': -1
}
class OffsetRequest_v5(Request):
API_KEY = 2
API_VERSION = 5
RESPONSE_TYPE = OffsetResponse_v5
SCHEMA = OffsetRequest_v4.SCHEMA
DEFAULTS = {
'replica_id': -1
}
OffsetRequest = [
OffsetRequest_v0, OffsetRequest_v1, OffsetRequest_v2,
OffsetRequest_v3, OffsetRequest_v4, OffsetRequest_v5,
]
OffsetResponse = [
OffsetResponse_v0, OffsetResponse_v1, OffsetResponse_v2,
OffsetResponse_v3, OffsetResponse_v4, OffsetResponse_v5,
]
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