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Add ApplicationSpecificInformation to the database model

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This change adds a new SQLAlchemy object to the database model
representing the ApplicationSpecificInformation attribute. The
new object is linked to the base ManagedObject object, allowing
ApplicationSpecificInformation attributes to be associated with
any managed object. This also represents how KMIP attributes
should be supported going forward. A new unit test suite has
been added to verify the new object functionality and to confirm
that the object can be stored and retrieved from an in-memory
database.
This commit is contained in:
Peter Hamilton 2019-09-30 11:24:07 -04:00 committed by Peter Hamilton
parent b7d2cc1382
commit 3f84a20a0c
2 changed files with 390 additions and 3 deletions
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134
kmip/pie/objects.py
View File

@ -18,7 +18,6 @@ import sqlalchemy
from sqlalchemy import Column, event, ForeignKey, Integer, String, VARBINARY
from sqlalchemy import Boolean
from sqlalchemy.ext.associationproxy import association_proxy
from sqlalchemy.orm import relationship
import binascii
import six
@ -27,6 +26,28 @@ from kmip.core import enums
from kmip.pie import sqltypes as sql
app_specific_info_map = sqlalchemy.Table(
"app_specific_info_map",
sql.Base.metadata,
sqlalchemy.Column(
"managed_object_id",
sqlalchemy.Integer,
sqlalchemy.ForeignKey(
"managed_objects.uid",
ondelete="CASCADE"
)
),
sqlalchemy.Column(
"app_specific_info_id",
sqlalchemy.Integer,
sqlalchemy.ForeignKey(
"app_specific_info.id",
ondelete="CASCADE"
)
)
)
class ManagedObject(sql.Base):
"""
The abstract base class of the simplified KMIP object hierarchy.
@ -51,8 +72,11 @@ class ManagedObject(sql.Base):
_class_type = Column('class_type', String(50))
value = Column('value', VARBINARY(1024))
name_index = Column(Integer, default=0)
_names = relationship('ManagedObjectName', back_populates='mo',
cascade='all, delete-orphan')
_names = sqlalchemy.orm.relationship(
"ManagedObjectName",
back_populates="mo",
cascade="all, delete-orphan"
)
names = association_proxy('_names', 'name')
operation_policy_name = Column(
'operation_policy_name',
@ -62,6 +86,13 @@ class ManagedObject(sql.Base):
initial_date = Column(Integer, default=0)
_owner = Column('owner', String(50), default=None)
app_specific_info = sqlalchemy.orm.relationship(
"ApplicationSpecificInformation",
secondary=app_specific_info_map,
back_populates="managed_objects",
passive_deletes=True
)
__mapper_args__ = {
'polymorphic_identity': 'ManagedObject',
'polymorphic_on': _class_type
@ -1713,3 +1744,100 @@ class OpaqueObject(ManagedObject):
event.listen(OpaqueObject._names, 'append',
sql.attribute_append_factory("name_index"), retval=False)
class ApplicationSpecificInformation(sql.Base):
__tablename__ = "app_specific_info"
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
_application_namespace = sqlalchemy.Column(
"application_namespace",
sqlalchemy.String
)
_application_data = sqlalchemy.Column(
"application_data",
sqlalchemy.String
)
managed_objects = sqlalchemy.orm.relationship(
"ManagedObject",
secondary=app_specific_info_map,
back_populates="app_specific_info"
)
def __init__(self,
application_namespace=None,
application_data=None):
"""
Create an ApplicationSpecificInformation attribute.
Args:
application_namespace (str): A string specifying the application
namespace. Required.
application_data (str): A string specifying the application data.
Required.
"""
super(ApplicationSpecificInformation, self).__init__()
self.application_namespace = application_namespace
self.application_data = application_data
@property
def application_namespace(self):
return self._application_namespace
@application_namespace.setter
def application_namespace(self, value):
if (value is None) or (isinstance(value, six.string_types)):
self._application_namespace = value
else:
raise TypeError("The application namespace must be a string.")
@property
def application_data(self):
return self._application_data
@application_data.setter
def application_data(self, value):
if (value is None) or (isinstance(value, six.string_types)):
self._application_data = value
else:
raise TypeError("The application data must be a string.")
def __repr__(self):
application_namespace = "application_namespace={}".format(
self.application_namespace
)
application_data = "application_data={}".format(self.application_data)
return "ApplicationSpecificInformation({})".format(
", ".join(
[
application_namespace,
application_data
]
)
)
def __str__(self):
return str(
{
"application_namespace": self.application_namespace,
"application_data": self.application_data
}
)
def __eq__(self, other):
if isinstance(other, ApplicationSpecificInformation):
if self.application_namespace != other.application_namespace:
return False
elif self.application_data != other.application_data:
return False
else:
return True
else:
return NotImplemented
def __ne__(self, other):
if isinstance(other, ApplicationSpecificInformation):
return not (self == other)
else:
return NotImplemented

259
kmip/tests/unit/pie/objects/test_application_specific_information.py Normal file
View File

@ -0,0 +1,259 @@
# Copyright (c) 2019 The Johns Hopkins University/Applied Physics Laboratory
# All Rights Reserved.
#
# Licensed 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 sqlalchemy
import testtools
from kmip.pie import objects
from kmip.pie import sqltypes
class TestApplicationSpecificInformation(testtools.TestCase):
"""
Test suite for ApplicationSpecificInformation.
"""
def setUp(self):
super(TestApplicationSpecificInformation, self).setUp()
def tearDown(self):
super(TestApplicationSpecificInformation, self).tearDown()
def test_init(self):
"""
Test that an ApplicationSpecificInformation object can be instantiated.
"""
app_specific_info = objects.ApplicationSpecificInformation()
self.assertIsNone(app_specific_info.application_namespace)
self.assertIsNone(app_specific_info.application_data)
def test_invalid_application_namespace(self):
"""
Test that a TypeError is raised when an invalid application namespace
value is used to construct an ApplicationSpecificInformation attribute.
"""
kwargs = {"application_namespace": []}
self.assertRaisesRegex(
TypeError,
"The application namespace must be a string.",
objects.ApplicationSpecificInformation,
**kwargs
)
args = (
objects.ApplicationSpecificInformation(),
"application_namespace",
[]
)
self.assertRaisesRegex(
TypeError,
"The application namespace must be a string.",
setattr,
*args
)
def test_invalid_application_data(self):
"""
Test that a TypeError is raised when an invalid application data value
is used to construct an ApplicationSpecificInformation attribute.
"""
kwargs = {"application_data": []}
self.assertRaisesRegex(
TypeError,
"The application data must be a string.",
objects.ApplicationSpecificInformation,
**kwargs
)
args = (
objects.ApplicationSpecificInformation(),
"application_data",
[]
)
self.assertRaisesRegex(
TypeError,
"The application data must be a string.",
setattr,
*args
)
def test_repr(self):
"""
Test that repr can be applied to an ApplicationSpecificInformation
attribute.
"""
app_specific_info = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
args = [
"application_namespace={}".format("ssl"),
"application_data={}".format("www.example.com")
]
expected = "ApplicationSpecificInformation({})".format(", ".join(args))
observed = repr(app_specific_info)
self.assertEqual(expected, observed)
def test_str(self):
"""
Test that str can be applied to an ApplicationSpecificInformation
attribute.
"""
app_specific_info = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
expected = str(
{
"application_namespace": "ssl",
"application_data": "www.example.com"
}
)
observed = str(app_specific_info)
self.assertEqual(expected, observed)
def test_comparison_on_equal(self):
"""
Test that the equality/inequality operators return True/False when
comparing two ApplicationSpecificInformation attributes with the same
data.
"""
a = objects.ApplicationSpecificInformation()
b = objects.ApplicationSpecificInformation()
self.assertTrue(a == b)
self.assertTrue(b == a)
self.assertFalse(a != b)
self.assertFalse(b != a)
a = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
b = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
self.assertTrue(a == b)
self.assertTrue(b == a)
self.assertFalse(a != b)
self.assertFalse(b != a)
def test_comparison_on_different_application_namespaces(self):
"""
Test that the equality/inequality operators return False/True when
comparing two ApplicationSpecificInformation attributes with different
application namespaces.
"""
a = objects.ApplicationSpecificInformation(
application_namespace="a"
)
b = objects.ApplicationSpecificInformation(
application_namespace="b"
)
self.assertFalse(a == b)
self.assertFalse(b == a)
self.assertTrue(a != b)
self.assertTrue(b != a)
def test_comparison_on_different_application_data(self):
"""
Test that the equality/inequality operators return False/True when
comparing two ApplicationSpecificInformation attributes with different
application data.
"""
a = objects.ApplicationSpecificInformation(
application_data="a"
)
b = objects.ApplicationSpecificInformation(
application_data="b"
)
self.assertFalse(a == b)
self.assertFalse(b == a)
self.assertTrue(a != b)
self.assertTrue(b != a)
def test_comparison_on_type_mismatch(self):
"""
Test that the equality/inequality operators return False/True when
comparing an ApplicationSpecificInformation attribute to a non
ApplicationSpecificInformation attribute.
"""
a = objects.ApplicationSpecificInformation()
b = "invalid"
self.assertFalse(a == b)
self.assertFalse(b == a)
self.assertTrue(a != b)
self.assertTrue(b != a)
def test_save(self):
"""
Test that an ApplicationSpecificInformation attribute can be saved
using SQLAlchemy. This test will add an attribute instance to the
database, verify that no exceptions are thrown, and check that its
ID was set.
"""
app_specific_info = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
engine = sqlalchemy.create_engine("sqlite:///:memory:", echo=True)
sqltypes.Base.metadata.create_all(engine)
session = sqlalchemy.orm.sessionmaker(bind=engine)()
session.add(app_specific_info)
session.commit()
self.assertIsNotNone(app_specific_info.id)
def test_get(self):
"""
Test that an ApplicationSpecificInformation attribute can be saved
and then retrieved using SQLAlchemy. This test adds the attribute to
the database and then retrieves it by ID and verifies its values.
"""
app_specific_info = objects.ApplicationSpecificInformation(
application_namespace="ssl",
application_data="www.example.com"
)
engine = sqlalchemy.create_engine("sqlite:///:memory:", echo=True)
sqltypes.Base.metadata.create_all(engine)
session = sqlalchemy.orm.sessionmaker(bind=engine)()
session.add(app_specific_info)
session.commit()
session = sqlalchemy.orm.sessionmaker(bind=engine)()
retrieved_info = session.query(
objects.ApplicationSpecificInformation
).filter(
objects.ApplicationSpecificInformation.id == app_specific_info.id
).one()
session.commit()
self.assertEqual("ssl", retrieved_info.application_namespace)
self.assertEqual("www.example.com", retrieved_info.application_data)