So we really weren't deferring the loading of client libs dadgummit, do that for real where possible. This shaves a couple of tenths off the static import times. Also defer as much import-time procesing as possible. This is a little ugly in api.auth but this also eliminates import of the auth plugins until they are needed. Change-Id: Ia11d4b9cf98231d37449103fc29101dc17afb009
		
			
				
	
	
		
			77 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
#   Copyright 2012-2013 OpenStack, LLC.
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#
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#   Licensed under the Apache License, Version 2.0 (the "License"); you may
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#   not use this file except in compliance with the License. You may obtain
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#   a copy of the License at
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#
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#        http://www.apache.org/licenses/LICENSE-2.0
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#
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#   Unless required by applicable law or agreed to in writing, software
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#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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#   License for the specific language governing permissions and limitations
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#   under the License.
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#
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import logging
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from openstackclient.common import utils
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LOG = logging.getLogger(__name__)
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DEFAULT_VOLUME_API_VERSION = '1'
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API_VERSION_OPTION = 'os_volume_api_version'
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API_NAME = "volume"
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API_VERSIONS = {
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    "1": "cinderclient.v1.client.Client"
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}
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def make_client(instance):
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    """Returns a volume service client."""
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    # Defer client imports until we actually need them
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    from cinderclient import extension
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    from cinderclient.v1.contrib import list_extensions
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    from cinderclient.v1 import volume_snapshots
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    from cinderclient.v1 import volumes
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    # Monkey patch for v1 cinderclient
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    volumes.Volume.NAME_ATTR = 'display_name'
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    volume_snapshots.Snapshot.NAME_ATTR = 'display_name'
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    volume_client = utils.get_client_class(
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        API_NAME,
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        instance._api_version[API_NAME],
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        API_VERSIONS
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    )
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    LOG.debug('Instantiating volume client: %s', volume_client)
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    # Set client http_log_debug to True if verbosity level is high enough
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    http_log_debug = utils.get_effective_log_level() <= logging.DEBUG
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    extensions = [extension.Extension('list_extensions', list_extensions)]
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    client = volume_client(
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        session=instance.session,
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        extensions=extensions,
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        http_log_debug=http_log_debug,
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        region_name=instance._region_name,
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    )
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    return client
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def build_option_parser(parser):
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    """Hook to add global options"""
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    parser.add_argument(
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        '--os-volume-api-version',
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        metavar='<volume-api-version>',
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        default=utils.env(
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            'OS_VOLUME_API_VERSION',
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            default=DEFAULT_VOLUME_API_VERSION),
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        help='Volume API version, default=' +
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             DEFAULT_VOLUME_API_VERSION +
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             ' (Env: OS_VOLUME_API_VERSION)')
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    return parser
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