def get_or_create_stream(self, namespace_id, stream):
"""Tells Sds Service to create a stream based on the local 'stream' SdsStream object"""
if namespace_id is None:
raise TypeError
if stream is None or not isinstance(stream, SdsStream):
raise TypeError
response = requests.post(
self.url + self.__streamsPath.format(tenant_id=self.tenantId,
namespace_id=namespace_id,
stream_id=stream.Id),
data=stream.to_json(),
headers=self.__sds_headers())
if response.status_code < 200 or response.status_code >= 300:
response.close()
cleanup(self, namespace_id, self.type_names)
raise SdsError(
"Failed to create SdsStream, {stream_id}. {status}:{reason}".
format(stream_id=stream.Id,
status=response.status_code,
reason=response.text))
stream = SdsStream.from_json(json.loads(response.content))
response.close()
return stream
def get_streams(self, namespace_id, query="", skip=0, count=100):
"""Retrieves a list of streams associated with 'namespace_id' under the current tenant"""
if namespace_id is None:
raise TypeError
if query is None:
raise TypeError
response = requests.get(
self.url + self.__getStreamsPath.format(tenant_id=self.tenantId,
namespace_id=namespace_id,
query=query,
skip=skip,
count=count),
headers=self.__sds_headers())
if response.status_code < 200 or response.status_code >= 300:
response.close()
cleanup(self, namespace_id, self.type_names)
raise SdsError(
"Failed to get all SdsStreams. {status}:{reason}".format(
status=response.status_code, reason=response.text))
content = json.loads(response.content)
results = []
for item in content:
results.append(SdsStream.from_json(item))
response.close()
return results
def init_stream(self, type_id, stream_id):
"""Initializes an SdsStream object"""
sds_stream = SdsStream(stream_id=stream_id,
name=stream_id,
description="A stream to store {} "
"events".format(type_id),
type_id=type_id)
self.client.create_or_update_stream(self.namespace_id, sds_stream)
if not sds_stream:
self.raise_error("init_stream() ERROR: Failed to initialize "
"stream")
self.streams[sds_stream.Id] = sds_stream
return sds_stream
def get_stream(self, namespace_id, stream_id):
"""Retrieves a stream specified by 'stream_id' from the Sds Service"""
if namespace_id is None:
raise TypeError
if stream_id is None:
raise TypeError
response = requests.get(
self.url + self.__streamsPath.format(tenant_id=self.tenantId,
namespace_id=namespace_id,
stream_id=stream_id),
headers=self.__sds_headers())
if response.status_code < 200 or response.status_code >= 300:
response.close()
cleanup(self, namespace_id, self.type_names)
raise SdsError(
"Failed to get SdsStream, {stream_id}. {status}:{reason}".
format(stream_id=stream_id,
status=response.status_code,
reason=response.text))
stream = SdsStream.from_json(json.loads(response.content))
response.close()
return stream