134 lines
4.1 KiB
Python
134 lines
4.1 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from heat.common.i18n import _
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from heat.engine import constraints
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from heat.engine import properties
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from heat.engine import resource
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from heat.engine import support
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class DataSource(resource.Resource):
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"""A resource for creating sahara data source.
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A data source stores an URL which designates the location of input
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or output data and any credentials needed to access the location.
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"""
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support_status = support.SupportStatus(version='5.0.0')
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PROPERTIES = (
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NAME, TYPE, URL, DESCRIPTION, CREDENTIALS
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) = (
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'name', 'type', 'url', 'description', 'credentials'
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)
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_CREDENTIAL_KEYS = (
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USER, PASSWORD
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) = (
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'user', 'password'
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)
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_DATA_SOURCE_TYPES = (
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SWIFT, HDFS, MAPRFS, MANILA
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) = (
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'swift', 'hdfs', 'maprfs', 'manila'
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)
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properties_schema = {
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NAME: properties.Schema(
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properties.Schema.STRING,
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_("Name of the data source."),
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update_allowed=True
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),
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TYPE: properties.Schema(
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properties.Schema.STRING,
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_('Type of the data source.'),
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constraints=[
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constraints.AllowedValues(_DATA_SOURCE_TYPES),
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],
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required=True,
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update_allowed=True
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),
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URL: properties.Schema(
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properties.Schema.STRING,
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_('URL for the data source.'),
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required=True,
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update_allowed=True
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),
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DESCRIPTION: properties.Schema(
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properties.Schema.STRING,
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_('Description of the data source.'),
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default='',
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update_allowed=True
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),
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CREDENTIALS: properties.Schema(
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properties.Schema.MAP,
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_('Credentials used for swift. Not required if sahara is '
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'configured to use proxy users and delegated trusts for '
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'access.'),
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schema={
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USER: properties.Schema(
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properties.Schema.STRING,
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_('Username for accessing the data source URL.'),
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required=True
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),
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PASSWORD: properties.Schema(
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properties.Schema.STRING,
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_("Password for accessing the data source URL."),
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required=True
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)
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},
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update_allowed=True
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)
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}
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default_client_name = 'sahara'
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entity = 'data_sources'
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def _data_source_name(self):
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return self.properties[self.NAME] or self.physical_resource_name()
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def handle_create(self):
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credentials = self.properties[self.CREDENTIALS] or {}
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args = {
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'name': self._data_source_name(),
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'description': self.properties[self.DESCRIPTION],
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'data_source_type': self.properties[self.TYPE],
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'url': self.properties[self.URL],
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'credential_user': credentials.get(self.USER),
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'credential_pass': credentials.get(self.PASSWORD)
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}
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data_source = self.client().data_sources.create(**args)
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self.resource_id_set(data_source.id)
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def handle_update(self, json_snippet, tmpl_diff, prop_diff):
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if prop_diff:
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self.properties = json_snippet.properties(
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self.properties_schema,
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self.context)
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data = dict(self.properties)
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if not data.get(self.NAME):
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data[self.NAME] = self.physical_resource_name()
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self.client().data_sources.update(self.resource_id, data)
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def resource_mapping():
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return {
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'OS::Sahara::DataSource': DataSource
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}
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