On January 1, 2020 this library will no longer support Python 2 on the latest released version.
Previously released library versions will continue to be available. For more information please
visit Python 2 support on Google Cloud.
Source code for google.cloud.vision_v1.gapic.image_annotator_client
# -*- 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
#
# https://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.
"""Accesses the google.cloud.vision.v1 ImageAnnotator API."""
import pkg_resources
import warnings
from google.oauth2 import service_account
import google.api_core.client_options
import google.api_core.gapic_v1.client_info
import google.api_core.gapic_v1.config
import google.api_core.gapic_v1.method
import google.api_core.gapic_v1.routing_header
import google.api_core.grpc_helpers
import google.api_core.operation
from google.api_core import operations_v1
import grpc
from google.cloud.vision_v1.gapic import enums
from google.cloud.vision_v1.gapic import image_annotator_client_config
from google.cloud.vision_v1.gapic.transports import image_annotator_grpc_transport
from google.cloud.vision_v1.proto import image_annotator_pb2
from google.cloud.vision_v1.proto import image_annotator_pb2_grpc
from google.longrunning import operations_pb2
_GAPIC_LIBRARY_VERSION = pkg_resources.get_distribution("google-cloud-vision").version
class ImageAnnotatorClient(object):
"""
Service that performs Google Cloud Vision API detection tasks over client
images, such as face, landmark, logo, label, and text detection. The
ImageAnnotator service returns detected entities from the images.
"""
SERVICE_ADDRESS = "vision.googleapis.com:443"
"""The default address of the service."""
# The name of the interface for this client. This is the key used to
# find the method configuration in the client_config dictionary.
_INTERFACE_NAME = "google.cloud.vision.v1.ImageAnnotator"
[docs] @classmethod
def from_service_account_file(cls, filename, *args, **kwargs):
"""Creates an instance of this client using the provided credentials
file.
Args:
filename (str): The path to the service account private key json
file.
args: Additional arguments to pass to the constructor.
kwargs: Additional arguments to pass to the constructor.
Returns:
ImageAnnotatorClient: The constructed client.
"""
credentials = service_account.Credentials.from_service_account_file(filename)
kwargs["credentials"] = credentials
return cls(*args, **kwargs)
from_service_account_json = from_service_account_file
def __init__(
self,
transport=None,
channel=None,
credentials=None,
client_config=None,
client_info=None,
client_options=None,
):
"""Constructor.
Args:
transport (Union[~.ImageAnnotatorGrpcTransport,
Callable[[~.Credentials, type], ~.ImageAnnotatorGrpcTransport]): A transport
instance, responsible for actually making the API calls.
The default transport uses the gRPC protocol.
This argument may also be a callable which returns a
transport instance. Callables will be sent the credentials
as the first argument and the default transport class as
the second argument.
channel (grpc.Channel): DEPRECATED. A ``Channel`` instance
through which to make calls. This argument is mutually exclusive
with ``credentials``; providing both will raise an exception.
credentials (google.auth.credentials.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.
This argument is mutually exclusive with providing a
transport instance to ``transport``; doing so will raise
an exception.
client_config (dict): DEPRECATED. A dictionary of call options for
each method. If not specified, the default configuration is used.
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.
client_options (Union[dict, google.api_core.client_options.ClientOptions]):
Client options used to set user options on the client. API Endpoint
should be set through client_options.
"""
# Raise deprecation warnings for things we want to go away.
if client_config is not None:
warnings.warn(
"The `client_config` argument is deprecated.",
PendingDeprecationWarning,
stacklevel=2,
)
else:
client_config = image_annotator_client_config.config
if channel:
warnings.warn(
"The `channel` argument is deprecated; use " "`transport` instead.",
PendingDeprecationWarning,
stacklevel=2,
)
api_endpoint = self.SERVICE_ADDRESS
if client_options:
if type(client_options) == dict:
client_options = google.api_core.client_options.from_dict(
client_options
)
if client_options.api_endpoint:
api_endpoint = client_options.api_endpoint
# Instantiate the transport.
# The transport is responsible for handling serialization and
# deserialization and actually sending data to the service.
if transport:
if callable(transport):
self.transport = transport(
credentials=credentials,
default_class=image_annotator_grpc_transport.ImageAnnotatorGrpcTransport,
address=api_endpoint,
)
else:
if credentials:
raise ValueError(
"Received both a transport instance and "
"credentials; these are mutually exclusive."
)
self.transport = transport
else:
self.transport = image_annotator_grpc_transport.ImageAnnotatorGrpcTransport(
address=api_endpoint, channel=channel, credentials=credentials
)
if client_info is None:
client_info = google.api_core.gapic_v1.client_info.ClientInfo(
gapic_version=_GAPIC_LIBRARY_VERSION
)
else:
client_info.gapic_version = _GAPIC_LIBRARY_VERSION
self._client_info = client_info
# Parse out the default settings for retry and timeout for each RPC
# from the client configuration.
# (Ordinarily, these are the defaults specified in the `*_config.py`
# file next to this one.)
self._method_configs = google.api_core.gapic_v1.config.parse_method_configs(
client_config["interfaces"][self._INTERFACE_NAME]
)
# Save a dictionary of cached API call functions.
# These are the actual callables which invoke the proper
# transport methods, wrapped with `wrap_method` to add retry,
# timeout, and the like.
self._inner_api_calls = {}
# Service calls
[docs] def batch_annotate_images(
self,
requests,
parent=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Run image detection and annotation for a batch of images.
Example:
>>> from google.cloud import vision_v1
>>>
>>> client = vision_v1.ImageAnnotatorClient()
>>>
>>> # TODO: Initialize `requests`:
>>> requests = []
>>>
>>> response = client.batch_annotate_images(requests)
Args:
requests (list[Union[dict, ~google.cloud.vision_v1.types.AnnotateImageRequest]]): Required. Individual image annotation requests for this batch.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.vision_v1.types.AnnotateImageRequest`
parent (str): Optional. Target project and location to make a call.
Format: ``projects/{project-id}/locations/{location-id}``.
If no parent is specified, a region will be chosen automatically.
Supported location-ids: ``us``: USA country only, ``asia``: East asia
areas, like Japan, Taiwan, ``eu``: The European Union.
Example: ``projects/project-A/locations/eu``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.vision_v1.types.BatchAnnotateImagesResponse` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "batch_annotate_images" not in self._inner_api_calls:
self._inner_api_calls[
"batch_annotate_images"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.batch_annotate_images,
default_retry=self._method_configs["BatchAnnotateImages"].retry,
default_timeout=self._method_configs["BatchAnnotateImages"].timeout,
client_info=self._client_info,
)
request = image_annotator_pb2.BatchAnnotateImagesRequest(
requests=requests, parent=parent
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("parent", parent)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["batch_annotate_images"](
request, retry=retry, timeout=timeout, metadata=metadata
)
[docs] def batch_annotate_files(
self,
requests,
parent=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Service that performs image detection and annotation for a batch of files.
Now only "application/pdf", "image/tiff" and "image/gif" are supported.
This service will extract at most 5 (customers can specify which 5 in
AnnotateFileRequest.pages) frames (gif) or pages (pdf or tiff) from each
file provided and perform detection and annotation for each image
extracted.
Example:
>>> from google.cloud import vision_v1
>>>
>>> client = vision_v1.ImageAnnotatorClient()
>>>
>>> # TODO: Initialize `requests`:
>>> requests = []
>>>
>>> response = client.batch_annotate_files(requests)
Args:
requests (list[Union[dict, ~google.cloud.vision_v1.types.AnnotateFileRequest]]): Required. The list of file annotation requests. Right now we support only one
AnnotateFileRequest in BatchAnnotateFilesRequest.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.vision_v1.types.AnnotateFileRequest`
parent (str): Optional. Target project and location to make a call.
Format: ``projects/{project-id}/locations/{location-id}``.
If no parent is specified, a region will be chosen automatically.
Supported location-ids: ``us``: USA country only, ``asia``: East asia
areas, like Japan, Taiwan, ``eu``: The European Union.
Example: ``projects/project-A/locations/eu``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.vision_v1.types.BatchAnnotateFilesResponse` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "batch_annotate_files" not in self._inner_api_calls:
self._inner_api_calls[
"batch_annotate_files"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.batch_annotate_files,
default_retry=self._method_configs["BatchAnnotateFiles"].retry,
default_timeout=self._method_configs["BatchAnnotateFiles"].timeout,
client_info=self._client_info,
)
request = image_annotator_pb2.BatchAnnotateFilesRequest(
requests=requests, parent=parent
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("parent", parent)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["batch_annotate_files"](
request, retry=retry, timeout=timeout, metadata=metadata
)
[docs] def async_batch_annotate_images(
self,
requests,
output_config,
parent=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Run asynchronous image detection and annotation for a list of images.
Progress and results can be retrieved through the
``google.longrunning.Operations`` interface. ``Operation.metadata``
contains ``OperationMetadata`` (metadata). ``Operation.response``
contains ``AsyncBatchAnnotateImagesResponse`` (results).
This service will write image annotation outputs to json files in
customer GCS bucket, each json file containing
BatchAnnotateImagesResponse proto.
Example:
>>> from google.cloud import vision_v1
>>>
>>> client = vision_v1.ImageAnnotatorClient()
>>>
>>> # TODO: Initialize `requests`:
>>> requests = []
>>>
>>> # TODO: Initialize `output_config`:
>>> output_config = {}
>>>
>>> response = client.async_batch_annotate_images(requests, output_config)
>>>
>>> def callback(operation_future):
... # Handle result.
... result = operation_future.result()
>>>
>>> response.add_done_callback(callback)
>>>
>>> # Handle metadata.
>>> metadata = response.metadata()
Args:
requests (list[Union[dict, ~google.cloud.vision_v1.types.AnnotateImageRequest]]): Required. Individual image annotation requests for this batch.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.vision_v1.types.AnnotateImageRequest`
output_config (Union[dict, ~google.cloud.vision_v1.types.OutputConfig]): Required. The desired output location and metadata (e.g. format).
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.vision_v1.types.OutputConfig`
parent (str): Optional. Target project and location to make a call.
Format: ``projects/{project-id}/locations/{location-id}``.
If no parent is specified, a region will be chosen automatically.
Supported location-ids: ``us``: USA country only, ``asia``: East asia
areas, like Japan, Taiwan, ``eu``: The European Union.
Example: ``projects/project-A/locations/eu``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.vision_v1.types._OperationFuture` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "async_batch_annotate_images" not in self._inner_api_calls:
self._inner_api_calls[
"async_batch_annotate_images"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.async_batch_annotate_images,
default_retry=self._method_configs["AsyncBatchAnnotateImages"].retry,
default_timeout=self._method_configs[
"AsyncBatchAnnotateImages"
].timeout,
client_info=self._client_info,
)
request = image_annotator_pb2.AsyncBatchAnnotateImagesRequest(
requests=requests, output_config=output_config, parent=parent
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("parent", parent)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
operation = self._inner_api_calls["async_batch_annotate_images"](
request, retry=retry, timeout=timeout, metadata=metadata
)
return google.api_core.operation.from_gapic(
operation,
self.transport._operations_client,
image_annotator_pb2.AsyncBatchAnnotateImagesResponse,
metadata_type=image_annotator_pb2.OperationMetadata,
)
[docs] def async_batch_annotate_files(
self,
requests,
parent=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Run asynchronous image detection and annotation for a list of generic
files, such as PDF files, which may contain multiple pages and multiple
images per page. Progress and results can be retrieved through the
``google.longrunning.Operations`` interface. ``Operation.metadata``
contains ``OperationMetadata`` (metadata). ``Operation.response``
contains ``AsyncBatchAnnotateFilesResponse`` (results).
Example:
>>> from google.cloud import vision_v1
>>>
>>> client = vision_v1.ImageAnnotatorClient()
>>>
>>> # TODO: Initialize `requests`:
>>> requests = []
>>>
>>> response = client.async_batch_annotate_files(requests)
>>>
>>> def callback(operation_future):
... # Handle result.
... result = operation_future.result()
>>>
>>> response.add_done_callback(callback)
>>>
>>> # Handle metadata.
>>> metadata = response.metadata()
Args:
requests (list[Union[dict, ~google.cloud.vision_v1.types.AsyncAnnotateFileRequest]]): Required. Individual async file annotation requests for this batch.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.vision_v1.types.AsyncAnnotateFileRequest`
parent (str): Optional. Target project and location to make a call.
Format: ``projects/{project-id}/locations/{location-id}``.
If no parent is specified, a region will be chosen automatically.
Supported location-ids: ``us``: USA country only, ``asia``: East asia
areas, like Japan, Taiwan, ``eu``: The European Union.
Example: ``projects/project-A/locations/eu``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.vision_v1.types._OperationFuture` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "async_batch_annotate_files" not in self._inner_api_calls:
self._inner_api_calls[
"async_batch_annotate_files"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.async_batch_annotate_files,
default_retry=self._method_configs["AsyncBatchAnnotateFiles"].retry,
default_timeout=self._method_configs["AsyncBatchAnnotateFiles"].timeout,
client_info=self._client_info,
)
request = image_annotator_pb2.AsyncBatchAnnotateFilesRequest(
requests=requests, parent=parent
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("parent", parent)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
operation = self._inner_api_calls["async_batch_annotate_files"](
request, retry=retry, timeout=timeout, metadata=metadata
)
return google.api_core.operation.from_gapic(
operation,
self.transport._operations_client,
image_annotator_pb2.AsyncBatchAnnotateFilesResponse,
metadata_type=image_annotator_pb2.OperationMetadata,
)
