128 lines
3.4 KiB
Python
128 lines
3.4 KiB
Python
# Copyright 2015 Red Hat, Inc.
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#
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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, 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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import json
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from requests import exceptions
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from grafana_dashboards.grafana import utils
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class Datasource(object):
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def __init__(self, url, session):
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self.url = utils.urljoin(url, 'api/datasources/')
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self.session = session
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def create(self, name, data):
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"""Create a new datasource
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:param name: URL friendly title of the datasource
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:type name: str
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:param data: Datasource model
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:type data: dict
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:raises Exception: if datasource already exists
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"""
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if self.is_datasource(name):
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raise Exception('datasource[%s] already exists' % name)
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res = self.session.post(
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self.url, data=json.dumps(data))
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res.raise_for_status()
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return res.json()
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def delete(self, datasource_id):
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"""Delete a datasource
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:param datasource_id: Id number of datasource
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:type datasource_id: int
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:raises Exception: if datasource failed to delete
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"""
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url = utils.urljoin(self.url, str(datasource_id))
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self.session.delete(url)
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if self.get(datasource_id):
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raise Exception('datasource[%s] failed to delete' % datasource_id)
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def get(self, datasource_id):
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"""Get a datasource
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:param datasource_id: Id number of datasource
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:type datasource_id: int
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:rtype: dict or None
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"""
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url = utils.urljoin(self.url, str(datasource_id))
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try:
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res = self.session.get(url)
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res.raise_for_status()
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except exceptions.HTTPError:
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return None
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return res.json()
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def get_all(self):
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"""List all datasource
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:rtype: dict
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"""
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res = self.session.get(self.url)
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res.raise_for_status()
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return res.json()
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def is_datasource(self, name):
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"""Check if a datasource exists
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:param name: URL friendly title of the dashboard
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:type name: str
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:returns: if datasource exists return id number.
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:rtype: int
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"""
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datasources = self.get_all()
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for datasource in datasources:
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if datasource['name'].lower() == name.lower():
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return datasource['id']
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return 0
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def update(self, datasource_id, data):
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"""Update an existing datasource
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:param datasource_id: URL friendly title of the dashboard
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:type datasource_id: int
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:param data: Datasource model
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:type data: dict
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:param overwrite: Overwrite existing dashboard with newer version or
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with the same dashboard title
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:type overwrite: bool
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:raises Exception: if datasource already exists
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"""
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url = utils.urljoin(self.url, str(datasource_id))
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res = self.session.put(
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url, data=json.dumps(data))
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res.raise_for_status()
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return res.json()
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