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from reddwarfclient import base
from reddwarfclient.common import check_for_exceptions
from reddwarfclient.common import limit_url
from reddwarfclient.common import Paginated
import exceptions
import urlparse
class Database(base.Resource):
"""
According to Wikipedia, "A database is a system intended to organize,
store, and retrieve
large amounts of data easily."
"""
def __repr__(self):
return "<Database: %s>" % self.name
class Databases(base.ManagerWithFind):
"""
Manage :class:`Databases` resources.
"""
resource_class = Database
def create(self, instance_id, databases):
"""
Create new databases within the specified instance
"""
body = {"databases": databases}
url = "/instances/%s/databases" % instance_id
resp, body = self.api.client.post(url, body=body)
check_for_exceptions(resp, body)
def delete(self, instance_id, dbname):
"""Delete an existing database in the specified instance"""
url = "/instances/%s/databases/%s" % (instance_id, dbname)
resp, body = self.api.client.delete(url)
check_for_exceptions(resp, body)
def _list(self, url, response_key, limit=None, marker=None):
resp, body = self.api.client.get(limit_url(url, limit, marker))
check_for_exceptions(resp, body)
if not body:
raise Exception("Call to " + url +
" did not return a body.")
links = body.get('links', [])
next_links = [link['href'] for link in links if link['rel'] == 'next']
next_marker = None
for link in next_links:
# Extract the marker from the url.
parsed_url = urlparse.urlparse(link)
query_dict = dict(urlparse.parse_qsl(parsed_url.query))
next_marker = query_dict.get('marker', None)
databases = body[response_key]
databases = [self.resource_class(self, res) for res in databases]
return Paginated(databases, next_marker=next_marker, links=links)
def list(self, instance, limit=None, marker=None):
"""
Get a list of all Databases from the instance.
:rtype: list of :class:`Database`.
"""
return self._list("/instances/%s/databases" % base.getid(instance),
"databases", limit, marker)
# def get(self, instance, database):
# """
# Get a specific instances.
#
# :param flavor: The ID of the :class:`Database` to get.
# :rtype: :class:`Database`
# """
# assert isinstance(instance, Instance)
# assert isinstance(database, (Database, int))
# instance_id = base.getid(instance)
# db_id = base.getid(database)
# url = "/instances/%s/databases/%s" % (instance_id, db_id)
# return self._get(url, "database")
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