main commit

venv/lib/python3.12/site-packages/kafka/protocol/metadata.py

@@ -128,42 +128,6 @@ class MetadataResponse_v5(Response):
     )
 
 
-class MetadataResponse_v6(Response):
-    """Metadata Request/Response v6 is the same as v5,
-    but on quota violation, brokers send out responses before throttling."""
-    API_KEY = 3
-    API_VERSION = 6
-    SCHEMA = MetadataResponse_v5.SCHEMA
-
-
-class MetadataResponse_v7(Response):
-    """v7 adds per-partition leader_epoch field"""
-    API_KEY = 3
-    API_VERSION = 7
-    SCHEMA = Schema(
-        ('throttle_time_ms', Int32),
-        ('brokers', Array(
-            ('node_id', Int32),
-            ('host', String('utf-8')),
-            ('port', Int32),
-            ('rack', String('utf-8')))),
-        ('cluster_id', String('utf-8')),
-        ('controller_id', Int32),
-        ('topics', Array(
-            ('error_code', Int16),
-            ('topic', String('utf-8')),
-            ('is_internal', Boolean),
-            ('partitions', Array(
-                ('error_code', Int16),
-                ('partition', Int32),
-                ('leader', Int32),
-                ('leader_epoch', Int32),
-                ('replicas', Array(Int32)),
-                ('isr', Array(Int32)),
-                ('offline_replicas', Array(Int32))))))
-    )
-
-
 class MetadataRequest_v0(Request):
     API_KEY = 3
     API_VERSION = 0
@@ -171,8 +135,7 @@ class MetadataRequest_v0(Request):
     SCHEMA = Schema(
         ('topics', Array(String('utf-8')))
     )
-    ALL_TOPICS = [] # Empty Array (len 0) for topics returns all topics
-    NO_TOPICS = [] # v0 does not support a 'no topics' request, so we'll just ask for ALL
+    ALL_TOPICS = None  # Empty Array (len 0) for topics returns all topics
 
 
 class MetadataRequest_v1(Request):
@@ -180,8 +143,8 @@ class MetadataRequest_v1(Request):
     API_VERSION = 1
     RESPONSE_TYPE = MetadataResponse_v1
     SCHEMA = MetadataRequest_v0.SCHEMA
-    ALL_TOPICS = None # Null Array (len -1) for topics returns all topics
-    NO_TOPICS = [] # Empty array (len 0) for topics returns no topics
+    ALL_TOPICS = -1  # Null Array (len -1) for topics returns all topics
+    NO_TOPICS = None  # Empty array (len 0) for topics returns no topics
 
 
 class MetadataRequest_v2(Request):
@@ -189,8 +152,8 @@ class MetadataRequest_v2(Request):
     API_VERSION = 2
     RESPONSE_TYPE = MetadataResponse_v2
     SCHEMA = MetadataRequest_v1.SCHEMA
-    ALL_TOPICS = None
-    NO_TOPICS = []
+    ALL_TOPICS = -1  # Null Array (len -1) for topics returns all topics
+    NO_TOPICS = None  # Empty array (len 0) for topics returns no topics
 
 
 class MetadataRequest_v3(Request):
@@ -198,8 +161,8 @@ class MetadataRequest_v3(Request):
     API_VERSION = 3
     RESPONSE_TYPE = MetadataResponse_v3
     SCHEMA = MetadataRequest_v1.SCHEMA
-    ALL_TOPICS = None
-    NO_TOPICS = []
+    ALL_TOPICS = -1  # Null Array (len -1) for topics returns all topics
+    NO_TOPICS = None  # Empty array (len 0) for topics returns no topics
 
 
 class MetadataRequest_v4(Request):
@@ -210,8 +173,8 @@ class MetadataRequest_v4(Request):
         ('topics', Array(String('utf-8'))),
         ('allow_auto_topic_creation', Boolean)
     )
-    ALL_TOPICS = None
-    NO_TOPICS = []
+    ALL_TOPICS = -1  # Null Array (len -1) for topics returns all topics
+    NO_TOPICS = None  # Empty array (len 0) for topics returns no topics
 
 
 class MetadataRequest_v5(Request):
@@ -223,35 +186,15 @@ class MetadataRequest_v5(Request):
     API_VERSION = 5
     RESPONSE_TYPE = MetadataResponse_v5
     SCHEMA = MetadataRequest_v4.SCHEMA
-    ALL_TOPICS = None
-    NO_TOPICS = []
-
-
-class MetadataRequest_v6(Request):
-    API_KEY = 3
-    API_VERSION = 6
-    RESPONSE_TYPE = MetadataResponse_v6
-    SCHEMA = MetadataRequest_v5.SCHEMA
-    ALL_TOPICS = None
-    NO_TOPICS = []
-
-
-class MetadataRequest_v7(Request):
-    API_KEY = 3
-    API_VERSION = 7
-    RESPONSE_TYPE = MetadataResponse_v7
-    SCHEMA = MetadataRequest_v6.SCHEMA
-    ALL_TOPICS = None
-    NO_TOPICS = []
+    ALL_TOPICS = -1  # Null Array (len -1) for topics returns all topics
+    NO_TOPICS = None  # Empty array (len 0) for topics returns no topics
 
 
 MetadataRequest = [
     MetadataRequest_v0, MetadataRequest_v1, MetadataRequest_v2,
-    MetadataRequest_v3, MetadataRequest_v4, MetadataRequest_v5,
-    MetadataRequest_v6, MetadataRequest_v7,
+    MetadataRequest_v3, MetadataRequest_v4, MetadataRequest_v5
 ]
 MetadataResponse = [
     MetadataResponse_v0, MetadataResponse_v1, MetadataResponse_v2,
-    MetadataResponse_v3, MetadataResponse_v4, MetadataResponse_v5,
-    MetadataResponse_v6, MetadataResponse_v7,
+    MetadataResponse_v3, MetadataResponse_v4, MetadataResponse_v5
 ]