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- #!/usr/bin/env python
- # -- coding: utf-8 --
- # Licensed to Cloudera, Inc. under one
- # or more contributor license agreements. See the NOTICE file
- # distributed with this work for additional information
- # regarding copyright ownership. Cloudera, Inc. licenses this file
- # to you 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 logging
- from desktop.lib.rest.http_client import HttpClient, RestException
- from desktop.lib.rest import resource
- from metadata.conf import NAVIGATOR
- LOG = logging.getLogger(__name__)
- class NavigatorApiException(Exception):
- pass
- class NavigatorApi(object):
- """
- http://cloudera.github.io/navigator/apidocs/v2/index.html
- """
- def __init__(self, api_url=None, user=None, password=None):
- self._api_url = (api_url or NAVIGATOR.API_URL.get()).strip('/')
- self._username = user or NAVIGATOR.AUTH_USERNAME.get()
- self._password = password or NAVIGATOR.AUTH_PASSWORD.get()
- self._client = HttpClient(self._api_url, logger=LOG)
- self._client.set_basic_auth(self._username, self._password)
- self._root = resource.Resource(self._client)
- self.__headers = {}
- self.__params = ()
- def find_entity(self, type, name):
- """
- GET /api/v2/interactive/entities?query=((originalName:<name>)AND(type:<type>))
- http://cloudera.github.io/navigator/apidocs/v2/path__v2_interactive_entities.html
- """
- try:
- params = self.__params
- filter_query = '((originalName:%(name)s)AND(type:%(type)s))' % {'name': name, 'type': type}
- params += (
- ('query', filter_query),
- ('offset', 0),
- )
- response = self._root.get('interactive/entities', headers=self.__headers, params=params)
- if response['totalMatched'] == 0:
- raise NavigatorApiException('Could not find entity with type %s and name %s') % (type, name)
- elif response['totalMatched'] > 1:
- raise NavigatorApiException('Found more than 1 entity with type %s and name %s') % (type, name)
- else:
- return response['results'][0]
- except RestException, e:
- raise NavigatorApiException('Failed to find entity with type %s and name %s: %s' % (type, name, str(e)))
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