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authorMark Roberts <wizzat@gmail.com>2014-05-07 03:05:50 -0700
committerMark Roberts <wizzat@gmail.com>2014-05-07 03:05:50 -0700
commit39796ec49162a0895be98a8aeb0e42e8319e5e30 (patch)
tree203e4c3dded544f2e70c1bbf142c5a0680163c87 /kafka/protocol.py
parentb47bf781eb0e96c3fef59cbe554325155062e129 (diff)
parent671b74ab2e035a2f2ba7f90419794f6dbec08366 (diff)
downloadkafka-python-39796ec49162a0895be98a8aeb0e42e8319e5e30.tar.gz
Merge branch 'teach_producers_about_compression' into producer_compression
Conflicts: servers/0.8.0/kafka-src test/test_unit.py
Diffstat (limited to 'kafka/protocol.py')
-rw-r--r--kafka/protocol.py23
1 files changed, 12 insertions, 11 deletions
diff --git a/kafka/protocol.py b/kafka/protocol.py
index 7ec7946..730ae6b 100644
--- a/kafka/protocol.py
+++ b/kafka/protocol.py
@@ -18,6 +18,12 @@ from kafka.util import (
log = logging.getLogger("kafka")
+ATTRIBUTE_CODEC_MASK = 0x03
+CODEC_NONE = 0x00
+CODEC_GZIP = 0x01
+CODEC_SNAPPY = 0x02
+ALL_CODECS = (CODEC_NONE, CODEC_GZIP, CODEC_SNAPPY)
+
class KafkaProtocol(object):
"""
@@ -32,11 +38,6 @@ class KafkaProtocol(object):
OFFSET_COMMIT_KEY = 8
OFFSET_FETCH_KEY = 9
- ATTRIBUTE_CODEC_MASK = 0x03
- CODEC_NONE = 0x00
- CODEC_GZIP = 0x01
- CODEC_SNAPPY = 0x02
-
###################
# Private API #
###################
@@ -150,17 +151,17 @@ class KafkaProtocol(object):
(key, cur) = read_int_string(data, cur)
(value, cur) = read_int_string(data, cur)
- codec = att & KafkaProtocol.ATTRIBUTE_CODEC_MASK
+ codec = att & ATTRIBUTE_CODEC_MASK
- if codec == KafkaProtocol.CODEC_NONE:
+ if codec == CODEC_NONE:
yield (offset, Message(magic, att, key, value))
- elif codec == KafkaProtocol.CODEC_GZIP:
+ elif codec == CODEC_GZIP:
gz = gzip_decode(value)
for (offset, msg) in KafkaProtocol._decode_message_set_iter(gz):
yield (offset, msg)
- elif codec == KafkaProtocol.CODEC_SNAPPY:
+ elif codec == CODEC_SNAPPY:
snp = snappy_decode(value)
for (offset, msg) in KafkaProtocol._decode_message_set_iter(snp):
yield (offset, msg)
@@ -543,7 +544,7 @@ def create_gzip_message(payloads, key=None):
[create_message(payload) for payload in payloads])
gzipped = gzip_encode(message_set)
- codec = KafkaProtocol.ATTRIBUTE_CODEC_MASK & KafkaProtocol.CODEC_GZIP
+ codec = ATTRIBUTE_CODEC_MASK & CODEC_GZIP
return Message(0, 0x00 | codec, key, gzipped)
@@ -564,6 +565,6 @@ def create_snappy_message(payloads, key=None):
[create_message(payload) for payload in payloads])
snapped = snappy_encode(message_set)
- codec = KafkaProtocol.ATTRIBUTE_CODEC_MASK & KafkaProtocol.CODEC_SNAPPY
+ codec = ATTRIBUTE_CODEC_MASK & CODEC_SNAPPY
return Message(0, 0x00 | codec, key, snapped)