Fix dpkp#44 Add missing exception class

Also move the exceptions to common instead of util

Author: mumrah

CHANGES.md

@@ -5,3 +5,5 @@
 * Adding fetch_size_bytes to SimpleConsumer constructor to allow for user-configurable fetch sizes
 
 * Allow SimpleConsumer to automatically increase the fetch size if a partial message is read and no other messages were read during that fetch request. The increase factor is 1.5
+
+* Exception classes moved to kafka.common

kafka/common.py

@@ -64,3 +64,19 @@ class ErrorMapping(object):
     MESSAGE_SIZE_TO_LARGE     = 10
     STALE_CONTROLLER_EPOCH    = 11
     OFFSET_METADATA_TOO_LARGE = 12
+
+#################
+#   Exceptions  #
+#################
+
+class BufferUnderflowError(Exception):
+    pass
+
+class ChecksumError(Exception):
+    pass
+
+class ConsumerFetchSizeTooSmall(Exception):
+    pass
+
+class ConsumerNoMoreData(Exception):
+    pass

kafka/consumer.py

@@ -8,12 +8,11 @@
 
 from kafka.common import (
     ErrorMapping, FetchRequest,
-    OffsetRequest, OffsetFetchRequest, OffsetCommitRequest
+    OffsetRequest, OffsetFetchRequest, OffsetCommitRequest,
+    ConsumerFetchSizeTooSmall, ConsumerNoMoreData
 )
 
-from kafka.util import (
-    ReentrantTimer, ConsumerFetchSizeTooSmall
-)
+from kafka.util import ReentrantTimer
 
 log = logging.getLogger("kafka")
 

kafka/protocol.py

@@ -8,12 +8,12 @@
 from kafka.common import (
     BrokerMetadata, PartitionMetadata, Message, OffsetAndMessage,
     ProduceResponse, FetchResponse, OffsetResponse,
-    OffsetCommitResponse, OffsetFetchResponse
+    OffsetCommitResponse, OffsetFetchResponse,
+    BufferUnderflowError, ChecksumError, ConsumerFetchSizeTooSmall
 )
 from kafka.util import (
     read_short_string, read_int_string, relative_unpack,
-    write_short_string, write_int_string, group_by_topic_and_partition,
-    BufferUnderflowError, ChecksumError, ConsumerFetchSizeTooSmall
+    write_short_string, write_int_string, group_by_topic_and_partition
 )
 
 log = logging.getLogger("kafka")

kafka/queue.py

@@ -4,7 +4,7 @@
 from Queue import Empty
 import time
 
-from .client import KafkaClient, FetchRequest, ProduceRequest
+from kafka.client import KafkaClient, FetchRequest, ProduceRequest
 
 log = logging.getLogger("kafka")
 

kafka/util.py

@@ -66,15 +66,6 @@ def group_by_topic_and_partition(tuples):
     return out
 
 
-class BufferUnderflowError(Exception):
-    pass
-
-
-class ChecksumError(Exception):
-    pass
-
-class ConsumerFetchSizeTooSmall(Exception):
-    pass
 
 class ReentrantTimer(object):
     """