This repository has been archived by the owner on Oct 11, 2023. It is now read-only.
/
grpc_asyncio.py
375 lines (332 loc) · 16.8 KB
/
grpc_asyncio.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
# -*- coding: utf-8 -*-
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import warnings
from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
from google.api_core import gapic_v1 # type: ignore
from google.api_core import grpc_helpers_async # type: ignore
from google.auth import credentials as ga_credentials # type: ignore
from google.auth.transport.grpc import SslCredentials # type: ignore
import packaging.version
import grpc # type: ignore
from grpc.experimental import aio # type: ignore
from google.cloud.debugger_v2.types import controller
from .base import Controller2Transport, DEFAULT_CLIENT_INFO
from .grpc import Controller2GrpcTransport
class Controller2GrpcAsyncIOTransport(Controller2Transport):
"""gRPC AsyncIO backend transport for Controller2.
The Controller service provides the API for orchestrating a
collection of debugger agents to perform debugging tasks. These
agents are each attached to a process of an application which may
include one or more replicas.
The debugger agents register with the Controller to identify the
application being debugged, the Debuggee. All agents that register
with the same data, represent the same Debuggee, and are assigned
the same ``debuggee_id``.
The debugger agents call the Controller to retrieve the list of
active Breakpoints. Agents with the same ``debuggee_id`` get the
same breakpoints list. An agent that can fulfill the breakpoint
request updates the Controller with the breakpoint result. The
controller selects the first result received and discards the rest
of the results. Agents that poll again for active breakpoints will
no longer have the completed breakpoint in the list and should
remove that breakpoint from their attached process.
The Controller service does not provide a way to retrieve the
results of a completed breakpoint. This functionality is available
using the Debugger service.
This class defines the same methods as the primary client, so the
primary client can load the underlying transport implementation
and call it.
It sends protocol buffers over the wire using gRPC (which is built on
top of HTTP/2); the ``grpcio`` package must be installed.
"""
_grpc_channel: aio.Channel
_stubs: Dict[str, Callable] = {}
@classmethod
def create_channel(
cls,
host: str = "clouddebugger.googleapis.com",
credentials: ga_credentials.Credentials = None,
credentials_file: Optional[str] = None,
scopes: Optional[Sequence[str]] = None,
quota_project_id: Optional[str] = None,
**kwargs,
) -> aio.Channel:
"""Create and return a gRPC AsyncIO channel object.
Args:
host (Optional[str]): The host for the channel to use.
credentials (Optional[~.Credentials]): The
authorization credentials to attach to requests. These
credentials identify this application to the service. If
none are specified, the client will attempt to ascertain
the credentials from the environment.
credentials_file (Optional[str]): A file with credentials that can
be loaded with :func:`google.auth.load_credentials_from_file`.
This argument is ignored if ``channel`` is provided.
scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
service. These are only used when credentials are not specified and
are passed to :func:`google.auth.default`.
quota_project_id (Optional[str]): An optional project to use for billing
and quota.
kwargs (Optional[dict]): Keyword arguments, which are passed to the
channel creation.
Returns:
aio.Channel: A gRPC AsyncIO channel object.
"""
return grpc_helpers_async.create_channel(
host,
credentials=credentials,
credentials_file=credentials_file,
quota_project_id=quota_project_id,
default_scopes=cls.AUTH_SCOPES,
scopes=scopes,
default_host=cls.DEFAULT_HOST,
**kwargs,
)
def __init__(
self,
*,
host: str = "clouddebugger.googleapis.com",
credentials: ga_credentials.Credentials = None,
credentials_file: Optional[str] = None,
scopes: Optional[Sequence[str]] = None,
channel: aio.Channel = None,
api_mtls_endpoint: str = None,
client_cert_source: Callable[[], Tuple[bytes, bytes]] = None,
ssl_channel_credentials: grpc.ChannelCredentials = None,
client_cert_source_for_mtls: Callable[[], Tuple[bytes, bytes]] = None,
quota_project_id=None,
client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
always_use_jwt_access: Optional[bool] = False,
) -> None:
"""Instantiate the transport.
Args:
host (Optional[str]):
The hostname to connect to.
credentials (Optional[google.auth.credentials.Credentials]): The
authorization credentials to attach to requests. These
credentials identify the application to the service; if none
are specified, the client will attempt to ascertain the
credentials from the environment.
This argument is ignored if ``channel`` is provided.
credentials_file (Optional[str]): A file with credentials that can
be loaded with :func:`google.auth.load_credentials_from_file`.
This argument is ignored if ``channel`` is provided.
scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
service. These are only used when credentials are not specified and
are passed to :func:`google.auth.default`.
channel (Optional[aio.Channel]): A ``Channel`` instance through
which to make calls.
api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
If provided, it overrides the ``host`` argument and tries to create
a mutual TLS channel with client SSL credentials from
``client_cert_source`` or application default SSL credentials.
client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
Deprecated. A callback to provide client SSL certificate bytes and
private key bytes, both in PEM format. It is ignored if
``api_mtls_endpoint`` is None.
ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
for the grpc channel. It is ignored if ``channel`` is provided.
client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
A callback to provide client certificate bytes and private key bytes,
both in PEM format. It is used to configure a mutual TLS channel. It is
ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
quota_project_id (Optional[str]): An optional project to use for billing
and quota.
client_info (google.api_core.gapic_v1.client_info.ClientInfo):
The client info used to send a user-agent string along with
API requests. If ``None``, then default info will be used.
Generally, you only need to set this if you're developing
your own client library.
always_use_jwt_access (Optional[bool]): Whether self signed JWT should
be used for service account credentials.
Raises:
google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
creation failed for any reason.
google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
and ``credentials_file`` are passed.
"""
self._grpc_channel = None
self._ssl_channel_credentials = ssl_channel_credentials
self._stubs: Dict[str, Callable] = {}
if api_mtls_endpoint:
warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
if client_cert_source:
warnings.warn("client_cert_source is deprecated", DeprecationWarning)
if channel:
# Ignore credentials if a channel was passed.
credentials = False
# If a channel was explicitly provided, set it.
self._grpc_channel = channel
self._ssl_channel_credentials = None
else:
if api_mtls_endpoint:
host = api_mtls_endpoint
# Create SSL credentials with client_cert_source or application
# default SSL credentials.
if client_cert_source:
cert, key = client_cert_source()
self._ssl_channel_credentials = grpc.ssl_channel_credentials(
certificate_chain=cert, private_key=key
)
else:
self._ssl_channel_credentials = SslCredentials().ssl_credentials
else:
if client_cert_source_for_mtls and not ssl_channel_credentials:
cert, key = client_cert_source_for_mtls()
self._ssl_channel_credentials = grpc.ssl_channel_credentials(
certificate_chain=cert, private_key=key
)
# The base transport sets the host, credentials and scopes
super().__init__(
host=host,
credentials=credentials,
credentials_file=credentials_file,
scopes=scopes,
quota_project_id=quota_project_id,
client_info=client_info,
always_use_jwt_access=always_use_jwt_access,
)
if not self._grpc_channel:
self._grpc_channel = type(self).create_channel(
self._host,
credentials=self._credentials,
credentials_file=credentials_file,
scopes=self._scopes,
ssl_credentials=self._ssl_channel_credentials,
quota_project_id=quota_project_id,
options=[
("grpc.max_send_message_length", -1),
("grpc.max_receive_message_length", -1),
],
)
# Wrap messages. This must be done after self._grpc_channel exists
self._prep_wrapped_messages(client_info)
@property
def grpc_channel(self) -> aio.Channel:
"""Create the channel designed to connect to this service.
This property caches on the instance; repeated calls return
the same channel.
"""
# Return the channel from cache.
return self._grpc_channel
@property
def register_debuggee(
self,
) -> Callable[
[controller.RegisterDebuggeeRequest],
Awaitable[controller.RegisterDebuggeeResponse],
]:
r"""Return a callable for the register debuggee method over gRPC.
Registers the debuggee with the controller service.
All agents attached to the same application must call this
method with exactly the same request content to get back the
same stable ``debuggee_id``. Agents should call this method
again whenever ``google.rpc.Code.NOT_FOUND`` is returned from
any controller method.
This protocol allows the controller service to disable
debuggees, recover from data loss, or change the ``debuggee_id``
format. Agents must handle ``debuggee_id`` value changing upon
re-registration.
Returns:
Callable[[~.RegisterDebuggeeRequest],
Awaitable[~.RegisterDebuggeeResponse]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "register_debuggee" not in self._stubs:
self._stubs["register_debuggee"] = self.grpc_channel.unary_unary(
"/google.devtools.clouddebugger.v2.Controller2/RegisterDebuggee",
request_serializer=controller.RegisterDebuggeeRequest.serialize,
response_deserializer=controller.RegisterDebuggeeResponse.deserialize,
)
return self._stubs["register_debuggee"]
@property
def list_active_breakpoints(
self,
) -> Callable[
[controller.ListActiveBreakpointsRequest],
Awaitable[controller.ListActiveBreakpointsResponse],
]:
r"""Return a callable for the list active breakpoints method over gRPC.
Returns the list of all active breakpoints for the debuggee.
The breakpoint specification (``location``, ``condition``, and
``expressions`` fields) is semantically immutable, although the
field values may change. For example, an agent may update the
location line number to reflect the actual line where the
breakpoint was set, but this doesn't change the breakpoint
semantics.
This means that an agent does not need to check if a breakpoint
has changed when it encounters the same breakpoint on a
successive call. Moreover, an agent should remember the
breakpoints that are completed until the controller removes them
from the active list to avoid setting those breakpoints again.
Returns:
Callable[[~.ListActiveBreakpointsRequest],
Awaitable[~.ListActiveBreakpointsResponse]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "list_active_breakpoints" not in self._stubs:
self._stubs["list_active_breakpoints"] = self.grpc_channel.unary_unary(
"/google.devtools.clouddebugger.v2.Controller2/ListActiveBreakpoints",
request_serializer=controller.ListActiveBreakpointsRequest.serialize,
response_deserializer=controller.ListActiveBreakpointsResponse.deserialize,
)
return self._stubs["list_active_breakpoints"]
@property
def update_active_breakpoint(
self,
) -> Callable[
[controller.UpdateActiveBreakpointRequest],
Awaitable[controller.UpdateActiveBreakpointResponse],
]:
r"""Return a callable for the update active breakpoint method over gRPC.
Updates the breakpoint state or mutable fields. The entire
Breakpoint message must be sent back to the controller service.
Updates to active breakpoint fields are only allowed if the new
value does not change the breakpoint specification. Updates to
the ``location``, ``condition`` and ``expressions`` fields
should not alter the breakpoint semantics. These may only make
changes such as canonicalizing a value or snapping the location
to the correct line of code.
Returns:
Callable[[~.UpdateActiveBreakpointRequest],
Awaitable[~.UpdateActiveBreakpointResponse]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "update_active_breakpoint" not in self._stubs:
self._stubs["update_active_breakpoint"] = self.grpc_channel.unary_unary(
"/google.devtools.clouddebugger.v2.Controller2/UpdateActiveBreakpoint",
request_serializer=controller.UpdateActiveBreakpointRequest.serialize,
response_deserializer=controller.UpdateActiveBreakpointResponse.deserialize,
)
return self._stubs["update_active_breakpoint"]
def close(self):
return self.grpc_channel.close()
__all__ = ("Controller2GrpcAsyncIOTransport",)