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from cStringIO import StringIO
import gzip
import logging
log = logging.getLogger("kafka.codec")
try:
import snappy
hasSnappy=True
except ImportError:
log.warn("Snappy codec not available")
hasSnappy=False
def gzip_encode(payload):
buf = StringIO()
f = gzip.GzipFile(fileobj=buf, mode='w', compresslevel=6)
f.write(payload)
f.close()
buf.seek(0)
out = buf.read()
buf.close()
return out
def gzip_decode(payload):
buf = StringIO(payload)
f = gzip.GzipFile(fileobj=buf, mode='r')
out = f.read()
f.close()
buf.close()
return out
def snappy_encode(payload):
if not hasSnappy:
raise NotImplementedError("Snappy codec not available")
return snappy.compress(payload)
def snappy_decode(payload):
if not hasSnappy:
raise NotImplementedError("Snappy codec not available")
return snappy.decompress(payload)
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