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from sqlalchemy import Table, Column, Integer, Unicode, MetaData, ForeignKey, Boolean, DateTime, create_engine, UnicodeText
import sqlalchemy.exceptions
from sqlalchemy.orm import relation, backref, sessionmaker
from sqlalchemy.ext.declarative import declarative_base
class Uniquer(object):
@classmethod
def by_value(cls, session, **kwargs):
try:
return session.query(cls).filter_by(**kwargs).one()
except sqlalchemy.exceptions.InvalidRequestError:
return cls(**kwargs)
Base = declarative_base()
class Administrator(Uniquer, Base):
__tablename__ = 'administrator'
id = Column(Integer, primary_key=True)
name = Column(Unicode(20), unique=True)
email = Column(Unicode(64))
admin_client = Table('admin_client', Base.metadata,
Column('admin_id', Integer, ForeignKey('administrator.id')),
Column('client_id', Integer, ForeignKey('client.id')))
class Client(Uniquer, Base):
__tablename__ = 'client'
id = Column(Integer, primary_key=True)
name = Column(Unicode(64), unique=True)
admins = relation("Administrator", secondary=admin_client)
active = Column(Boolean, default=True)
online = Column(Boolean, default=True)
online_ts = Column(DateTime)
class Group(Uniquer, Base):
__tablename__ = 'group'
id = Column(Integer, primary_key=True)
name = Column(Unicode(32), unique=True)
class ConnectorKeyVal(Uniquer, Base):
__tablename__ = 'connkeyval'
id = Column(Integer, primary_key=True)
connector = Column(Unicode(16))
key = Column(Unicode(32))
value = Column(UnicodeText)
meta_group = Table('meta_group', Base.metadata,
Column('metadata_id', Integer, ForeignKey('metadata.id')),
Column('group_id', Integer, ForeignKey('group.id')))
meta_conn = Table('meta_conn', Base.metadata,
Column('metadata_id', Integer, ForeignKey('metadata.id')),
Column('connkeyval_id', Integer, ForeignKey('connkeyval.id')))
class Metadata(Base):
__tablename__ = 'metadata'
id = Column(Integer, primary_key=True)
client_id = Column(Integer, ForeignKey('client.id'))
client = relation(Client)
groups = relation("Group", secondary=meta_group)
keyvals = relation(ConnectorKeyVal, secondary=meta_conn)
timestamp = Column(DateTime)
@classmethod
def from_metadata(cls, session, metadata):
client = Client.by_value(session, name=metadata.hostname)
m = cls(client=client)
for group in metadata.groups:
m.groups.append(Group.by_value(session, name=unicode(group)))
for connector in metadata.connectors:
data = getattr(metadata, connector)
if not isinstance(data, dict):
continue
for key, value in data.iteritems():
if not isinstance(value, str):
continue
m.keyvals.append(ConnectorKeyVal.by_value(session,
connector=unicode(connector),
key=unicode(key),
value=unicode(value)))
return m
class Package(Base):
__tablename__ = 'package'
id = Column(Integer, primary_key=True)
name = Column(Unicode(24))
type = Column(Unicode(16))
version = Column(Unicode(16))
verification_status = Column(Boolean)
class PackageCorrespondence(Base):
__tablename__ = 'package_pair'
id = Column(Integer, primary_key=True)
desired_id = Column(Integer, ForeignKey('package.id'))
desired = relation(Package, primaryjoin=desired_id == Package.id)
incorrect_id = Column(Integer, ForeignKey('package.id'), nullable=True)
incorrect = relation(Package, primaryjoin=incorrect_id == Package.id)
modified = Column(Boolean)
package_snap = Table('package_snap', Base.metadata,
Column('ppair_id', Integer, ForeignKey('package_pair.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
class Service(Base):
__tablename__ = 'service'
id = Column(Integer, primary_key=True)
name = Column(Unicode(16))
type = Column(Unicode(12))
status = Column(Boolean)
class ServiceCorrespondence(Base):
__tablename__ = 'service_pair'
id = Column(Integer, primary_key=True)
desired_id = Column(Integer, ForeignKey('service.id'))
desired = relation(Service, primaryjoin=desired_id == Service.id)
incorrect_id = Column(Integer, ForeignKey('service.id'), nullable=True)
incorrect = relation(Service, primaryjoin=incorrect_id == Service.id)
modified = Column(Boolean)
service_snap = Table('service_snap', Base.metadata,
Column('spair_id', Integer, ForeignKey('service_pair.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
class File(Base):
__tablename__ = 'file'
id = Column(Integer, primary_key=True)
name = Column(UnicodeText)
type = Column(Unicode(12))
owner = Column(Unicode(12))
group = Column(Unicode(16))
perms = Column(Integer(5))
contents = Column(UnicodeText)
class FileCorrespondence(Base):
__tablename__ = 'file_pair'
id = Column(Integer, primary_key=True)
desired_id = Column(Integer, ForeignKey('file.id'))
desired = relation(File, primaryjoin=desired_id == File.id)
incorrect_id = Column(Integer, ForeignKey('file.id'), nullable=True)
incorrect = relation(File, primaryjoin=incorrect_id == File.id)
modified = Column(Boolean)
file_snap = Table('file_snap', Base.metadata,
Column('fpair_id', Integer, ForeignKey('file_pair.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
extra_pkg_snap = Table('extra_pkg_snap', Base.metadata,
Column('package_id', Integer, ForeignKey('package.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
extra_file_snap = Table('extra_file_snap', Base.metadata,
Column('file_id', Integer, ForeignKey('file.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
extra_service_snap = Table('extra_service_snap', Base.metadata,
Column('service_id', Integer, ForeignKey('service.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
class Action(Base):
__tablename__ = 'action'
id = Column(Integer, primary_key=True)
command = Column(UnicodeText)
return_code = Column(Integer)
output = Column(UnicodeText)
action_snap = Table('action_snap', Base.metadata,
Column('action_id', Integer, ForeignKey('action.id')),
Column('snapshot_id', Integer, ForeignKey('snapshot.id')))
class Snapshot(Base):
__tablename__ = 'snapshot'
id = Column(Integer, primary_key=True)
metadata_id = Column(Integer, ForeignKey('metadata.id'))
client_metadata = relation(Metadata, primaryjoin=metadata_id==Metadata.id)
timestamp = Column(DateTime)
client_id = Column(Integer, ForeignKey('client.id'))
client = relation(Client, backref=backref('snapshots'))
packages = relation(PackageCorrespondence, secondary=package_snap)
services = relation(ServiceCorrespondence, secondary=service_snap)
files = relation(FileCorrespondence, secondary=file_snap)
actions = relation(Action, secondary=action_snap)
extra_packages = relation(Package, secondary=extra_pkg_snap)
extra_services = relation(Service, secondary=extra_service_snap)
extra_files = relation(File, secondary=extra_file_snap)
if __name__ == '__main__':
engine = create_engine('sqlite:///:memory:', echo=True)
metadata = Base.metadata
metadata.create_all(engine)
Session = sessionmaker()
Session.configure(bind=engine)
session = Session()
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