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import logging
from .configuration import Configuration
from .pipeline import Pipeline
from .pipeline.transport._base import PipelineClientBase
from .pipeline.policies import ContentDecodePolicy, DistributedTracingPolicy
from .pipeline.transport import RequestsTransport
try:
from typing import TYPE_CHECKING
except ImportError:
TYPE_CHECKING = False
if TYPE_CHECKING:
from typing import (
List,
Any,
Dict,
Union,
IO,
Tuple,
Optional,
Callable,
Iterator,
cast,
) # pylint: disable=unused-import
_LOGGER = logging.getLogger(__name__)
[docs]class PipelineClient(PipelineClientBase):
"""Service client core methods.
Builds a Pipeline client.
:param str base_url: URL for the request.
:keyword ~azure.core.configuration.Configuration config: If omitted, the standard configuration is used.
:keyword Pipeline pipeline: If omitted, a Pipeline object is created and returned.
:keyword list[HTTPPolicy] policies: If omitted, the standard policies of the configuration object is used.
:keyword HttpTransport transport: If omitted, RequestsTransport is used for synchronous transport.
:return: A pipeline object.
:rtype: ~azure.core.pipeline.Pipeline
.. admonition:: Example:
.. literalinclude:: ../samples/test_example_sync.py
:start-after: [START build_pipeline_client]
:end-before: [END build_pipeline_client]
:language: python
:dedent: 4
:caption: Builds the pipeline client.
"""
def __init__(self, base_url, **kwargs):
super(PipelineClient, self).__init__(base_url)
self._config = kwargs.pop("config", None) or Configuration(**kwargs)
self._base_url = base_url
if kwargs.get("pipeline"):
self._pipeline = kwargs["pipeline"]
else:
self._pipeline = self._build_pipeline(self._config, **kwargs)
def __enter__(self):
self._pipeline.__enter__()
return self
def __exit__(self, *exc_details):
self._pipeline.__exit__(*exc_details)
[docs] def close(self):
self.__exit__()
def _build_pipeline(self, config, **kwargs): # pylint: disable=no-self-use
transport = kwargs.get('transport')
policies = kwargs.get('policies')
if policies is None: # [] is a valid policy list
policies = [
config.headers_policy,
config.user_agent_policy,
config.authentication_policy,
ContentDecodePolicy(),
config.redirect_policy,
config.retry_policy,
config.custom_hook_policy,
config.logging_policy,
DistributedTracingPolicy(),
]
if not transport:
transport = RequestsTransport(**kwargs)
return Pipeline(transport, policies)