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Add 'BucketNotification.create' API wrapper. (#3966)
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Toward #3956.
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@tseaver
tseaver committed Sep 25, 2017
1 parent fcdcf20 commit 41b1c26
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Showing 2 changed files with 183 additions and 22 deletions.
47 changes: 47 additions & 0 deletions storage/google/cloud/storage/notification.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,8 @@
JSON_API_V1_PAYLOAD_FORMAT = 'JSON_API_V1'
NONE_PAYLOAD_FORMAT = 'NONE'

_TOPIC_REF = '//pubsub.googleapis.com/projects/{}/topics/{}'


class BucketNotification(object):
"""Represent a single notification resource for a bucket.
Expand Down Expand Up @@ -133,3 +135,48 @@ def etag(self):
def self_link(self):
"""Server-set ETag of notification resource."""
return self._properties.get('selfLink')

@property
def client(self):
"""The client bound to this notfication."""
return self.bucket.client

def _require_client(self, client):
"""Check client or verify over-ride.
:type client: :class:`~google.cloud.storage.client.Client` or
``NoneType``
:param client: the client to use.
:rtype: :class:`google.cloud.storage.client.Client`
:returns: The client passed in or the bucket's client.
"""
if client is None:
client = self.client
return client

def create(self, client=None):
"""API wrapper: create the notification.
See:
https://cloud.google.com/storage/docs/json_api/v1/notifications/insert
:type client: :class:`~google.cloud.storage.client.Client`
:param client: (Optional) the client to use. If not passed, falls back
to the ``client`` stored on the notification's bucket.
"""
if self.notification_id is not None:
raise ValueError("Notification already exists w/ id: {}".format(
self.notification_id))

client = self._require_client(client)

path = '/b/{}/notificationConfigs'.format(self.bucket.name)
properties = self._properties.copy()
properties['topic'] = _TOPIC_REF.format(
self.topic_project, self.topic_name)
self._properties = client._connection.api_request(
method='POST',
path=path,
data=properties,
)
158 changes: 136 additions & 22 deletions storage/tests/unit/test_notification.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,29 @@ class TestBucketNotification(unittest.TestCase):
BUCKET_PROJECT = 'bucket-project-123'
TOPIC_NAME = 'test-topic'
TOPIC_ALT_PROJECT = 'topic-project-456'
TOPIC_REF_FMT = '//pubsub.googleapis.com/projects/{}/topics/{}'
TOPIC_REF = TOPIC_REF_FMT.format(BUCKET_PROJECT, TOPIC_NAME)
TOPIC_ALT_REF = TOPIC_REF_FMT.format(TOPIC_ALT_PROJECT, TOPIC_NAME)
CUSTOM_ATTRIBUTES = {
'attr1': 'value1',
'attr2': 'value2',
}
BLOB_NAME_PREFIX = 'blob-name-prefix/'

@staticmethod
def event_types():
from google.cloud.storage.notification import (
OBJECT_FINALIZE_EVENT_TYPE,
OBJECT_DELETE_EVENT_TYPE)

return [OBJECT_FINALIZE_EVENT_TYPE, OBJECT_DELETE_EVENT_TYPE]

@staticmethod
def payload_format():
from google.cloud.storage.notification import (
JSON_API_V1_PAYLOAD_FORMAT)

return JSON_API_V1_PAYLOAD_FORMAT

@staticmethod
def _get_target_class():
Expand All @@ -39,9 +62,10 @@ def _make_client(self, project=BUCKET_PROJECT):
return mock.Mock(project=project, spec=Client)

def _make_bucket(self, client, name=BUCKET_NAME):
from google.cloud.storage.bucket import Bucket

return mock.Mock(client=client, name=name, spec=Bucket)
bucket = mock.Mock(spec=['client', 'name'])
bucket.client= client
bucket.name = name
return bucket

def test_ctor_defaults(self):
client = self._make_client()
Expand All @@ -59,37 +83,27 @@ def test_ctor_defaults(self):
self.assertIsNone(notification.payload_format)

def test_ctor_explicit(self):
from google.cloud.storage.notification import (
OBJECT_FINALIZE_EVENT_TYPE,
OBJECT_DELETE_EVENT_TYPE,
JSON_API_V1_PAYLOAD_FORMAT)

client = self._make_client()
bucket = self._make_bucket(client)
CUSTOM_ATTRIBUTES = {
'attr1': 'value1',
'attr2': 'value2',
}
EVENT_TYPES = [OBJECT_FINALIZE_EVENT_TYPE, OBJECT_DELETE_EVENT_TYPE]
BLOB_NAME_PREFIX = 'blob-name-prefix/'

notification = self._make_one(
bucket, self.TOPIC_NAME,
topic_project=self.TOPIC_ALT_PROJECT,
custom_attributes=CUSTOM_ATTRIBUTES,
event_types=EVENT_TYPES,
blob_name_prefix=BLOB_NAME_PREFIX,
payload_format=JSON_API_V1_PAYLOAD_FORMAT,
custom_attributes=self.CUSTOM_ATTRIBUTES,
event_types=self.event_types(),
blob_name_prefix=self.BLOB_NAME_PREFIX,
payload_format=self.payload_format(),
)

self.assertIs(notification.bucket, bucket)
self.assertEqual(notification.topic_name, self.TOPIC_NAME)
self.assertEqual(notification.topic_project, self.TOPIC_ALT_PROJECT)
self.assertEqual(notification.custom_attributes, CUSTOM_ATTRIBUTES)
self.assertEqual(notification.event_types, EVENT_TYPES)
self.assertEqual(notification.blob_name_prefix, BLOB_NAME_PREFIX)
self.assertEqual(
notification.payload_format, JSON_API_V1_PAYLOAD_FORMAT)
notification.custom_attributes, self.CUSTOM_ATTRIBUTES)
self.assertEqual(notification.event_types, self.event_types())
self.assertEqual(notification.blob_name_prefix, self.BLOB_NAME_PREFIX)
self.assertEqual(
notification.payload_format, self.payload_format())

def test_notification_id(self):
client = self._make_client()
Expand Down Expand Up @@ -129,3 +143,103 @@ def test_self_link(self):

notification._properties['selfLink'] = SELF_LINK
self.assertEqual(notification.self_link, SELF_LINK)

def test_create_w_existing_notification_id(self):
NOTIFICATION_ID = '123'
client = self._make_client()
bucket = self._make_bucket(client)
notification = self._make_one(
bucket, self.TOPIC_NAME)
notification._properties['id'] = NOTIFICATION_ID

with self.assertRaises(ValueError):
notification.create()

def test_create_w_defaults(self):
NOTIFICATION_ID = '123'
ETAG = 'DEADBEEF'
SELF_LINK = 'https://example.com/notification/123'
client = self._make_client()
bucket = self._make_bucket(client)
notification = self._make_one(
bucket, self.TOPIC_NAME)
api_request = client._connection.api_request
api_request.return_value = {
'topic': self.TOPIC_REF,
'id': NOTIFICATION_ID,
'etag': ETAG,
'selfLink': SELF_LINK,
}

notification.create()

self.assertEqual(notification.notification_id, NOTIFICATION_ID)
self.assertEqual(notification.etag, ETAG)
self.assertEqual(notification.self_link, SELF_LINK)
self.assertIsNone(notification.custom_attributes)
self.assertIsNone(notification.event_types)
self.assertIsNone(notification.blob_name_prefix)
self.assertIsNone(notification.payload_format)

path = '/b/{}/notificationConfigs'.format(self.BUCKET_NAME)
data = {
'topic': self.TOPIC_REF,
}
api_request.assert_called_once_with(
method='POST',
path=path,
data=data,
)

def test_create_w_explicit_client(self):
NOTIFICATION_ID = '123'
ETAG = 'DEADBEEF'
SELF_LINK = 'https://example.com/notification/123'
client = self._make_client()
alt_client = self._make_client()
bucket = self._make_bucket(client)
notification = self._make_one(
bucket, self.TOPIC_NAME,
topic_project=self.TOPIC_ALT_PROJECT,
custom_attributes=self.CUSTOM_ATTRIBUTES,
event_types=self.event_types(),
blob_name_prefix=self.BLOB_NAME_PREFIX,
payload_format=self.payload_format(),
)
api_request = alt_client._connection.api_request
api_request.return_value = {
'topic': self.TOPIC_ALT_REF,
'custom_attributes': self.CUSTOM_ATTRIBUTES,
'event_types': self.event_types(),
'blob_name_prefix': self.BLOB_NAME_PREFIX,
'payload_format': self.payload_format(),
'id': NOTIFICATION_ID,
'etag': ETAG,
'selfLink': SELF_LINK,
}

notification.create(client=alt_client)

self.assertEqual(
notification.custom_attributes, self.CUSTOM_ATTRIBUTES)
self.assertEqual(notification.event_types, self.event_types())
self.assertEqual(notification.blob_name_prefix, self.BLOB_NAME_PREFIX)
self.assertEqual(
notification.payload_format, self.payload_format())
self.assertEqual(notification.notification_id, NOTIFICATION_ID)
self.assertEqual(notification.etag, ETAG)
self.assertEqual(notification.self_link, SELF_LINK)

path = '/b/{}/notificationConfigs'.format(self.BUCKET_NAME)
data = {
'topic': self.TOPIC_ALT_REF,
'custom_attributes': self.CUSTOM_ATTRIBUTES,
'event_types': self.event_types(),
'blob_name_prefix': self.BLOB_NAME_PREFIX,
'payload_format': self.payload_format(),
}
api_request.assert_called_once_with(
method='POST',
path=path,
data=data,
)

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