146 lines
4.2 KiB
Python
146 lines
4.2 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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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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SQLAlchemy models for cloudpulse service
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"""
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import json
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from oslo_config import cfg
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from oslo_db import options as db_options
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from oslo_db.sqlalchemy import models
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from oslo_utils import reflection
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import six.moves.urllib.parse as urlparse
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from sqlalchemy import Column
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy import Integer
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from sqlalchemy import schema
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from sqlalchemy import String
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from sqlalchemy import Text
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from sqlalchemy.types import TypeDecorator, TEXT
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from cloudpulse.common import paths
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sql_opts = [
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cfg.StrOpt('mysql_engine',
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default='InnoDB',
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help='MySQL engine to use.'),
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cfg.IntOpt('max_db_entries',
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default=240,
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help=('Maximum test result entries to be persisted ')),
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]
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_DEFAULT_SQL_CONNECTION = ('sqlite:///' +
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paths.state_path_def('cloudpulse.sqlite'))
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cfg.CONF.register_opts(sql_opts, 'database')
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db_options.set_defaults(cfg.CONF, connection=_DEFAULT_SQL_CONNECTION)
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def table_args():
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engine_name = urlparse.urlparse(cfg.CONF.database.connection).scheme
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if engine_name == 'mysql':
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return {'mysql_engine': cfg.CONF.database.mysql_engine,
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'mysql_charset': "utf8"}
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return None
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class JsonEncodedType(TypeDecorator):
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"""Abstract base type serialized as json-encoded string in db."""
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type = None
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impl = TEXT
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def process_bind_param(self, value, dialect):
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cls_name = reflection.get_class_name(self, fully_qualified=False)
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if value is None:
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# Save default value according to current type to keep the
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# interface the consistent.
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value = self.type()
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elif not isinstance(value, self.type):
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raise TypeError("%s supposes to store %s objects, but %s given"
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% (cls_name,
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self.type.__name__,
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type(value).__name__))
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serialized_value = json.dumps(value)
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return serialized_value
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def process_result_value(self, value, dialect):
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if value is not None:
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value = json.loads(value)
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return value
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class JSONEncodedDict(JsonEncodedType):
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"""Represents dict serialized as json-encoded string in db."""
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type = dict
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class JSONEncodedList(JsonEncodedType):
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"""Represents list serialized as json-encoded string in db."""
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type = list
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class CpulseBase(models.TimestampMixin,
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models.ModelBase):
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metadata = None
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def as_dict(self):
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d = {}
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for c in self.__table__.columns:
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d[c.name] = self[c.name]
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return d
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def save(self, session=None):
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import cloudpulse.db.sqlalchemy.api as db_api
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if session is None:
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session = db_api.get_session()
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super(CpulseBase, self).save(session)
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Base = declarative_base(cls=CpulseBase)
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class cpulse(Base):
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"""Represents cloudpulse test"""
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__tablename__ = 'cpulse'
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__table_args__ = (
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schema.UniqueConstraint('uuid', name='uniq_test0uuid'),
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table_args()
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)
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id = Column(Integer, primary_key=True)
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uuid = Column(String(64))
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name = Column(String(255))
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state = Column(String(255))
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result = Column(Text)
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testtype = Column(String(255))
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class CpulseLock(Base):
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"""Represents a cpulselock."""
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__tablename__ = 'cpulselock'
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__table_args__ = (
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schema.UniqueConstraint('test_name', name='uniq_testlock0test_name'),
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table_args()
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)
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id = Column(Integer, primary_key=True)
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test_name = Column(String(64))
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conductor_id = Column(String(64))
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