Introducing basic REST API

This is initial commit adding pecan/wsme framework.
Example operations are:
* GET /v1/project_groups
* GET /v1/project_groups/<group_name>

* GET /v1/projects
* GET /v1/projects/<project_name>

* GET /v1/teams
* GET /v1/teams/<team_name>
* POST /v1/teams
* POST /v1/teams/add_user

* GET /v1/users
* GET /v1/users/<username>
* POST /v1/users
* PUT /v1/users/<username>

* GET /v1/stories
* GET /v1/stories/<story_id>
* POST /v1/stories
* PUT /v1/stories
* POST /v1/stories/add_task
* POST /v1/stories/add_comment

* GET /v1/tasks
* GET /v1/tasks/<task_id>
* PUT /v1/tasks

More detailed documentation will be added later to a wiki page.

Tests will be added in a separate CR.

Auth stuff will be added in a separate CR after it is dicussed.

Change-Id: Ibace8cf7dd5bb933b0d2484b1d57b79bb8441a28
This commit is contained in:
Nikita Konovalov 2013-12-19 17:52:28 +04:00 committed by Michael Krotscheck
parent 1ce4b9a9f5
commit b02a396f3b
19 changed files with 774 additions and 5 deletions

View File

@ -1,5 +1,6 @@
include AUTHORS
include ChangeLog
include storyboard/api/app.wsgi
include storyboard/db/migration/README
include storyboard/db/migration/alembic.ini
include storyboard/db/migration/alembic_migrations/script.py.mako

View File

@ -39,7 +39,7 @@ lock_path = $state_path/lock
# connection = mysql://root:pass@127.0.0.1:3306/storyboard
# Replace 127.0.0.1 above with the IP address of the database used by the
# main storyboard server. (Leave it as is if the database runs on this host.)
# connection = sqlite://
# connection=sqlite://
# The SQLAlchemy connection string used to connect to the slave database
# slave_connection =
@ -72,3 +72,9 @@ lock_path = $state_path/lock
# If set, use this value for pool_timeout with sqlalchemy
# pool_timeout = 10
[api]
#host="0.0.0.0"
#
#port=8080

View File

@ -4,6 +4,7 @@
module=db
module=db.sqlalchemy
module=processutils
module=log
# The base module to hold the copy of openstack.common
base=storyboard

View File

@ -1,12 +1,14 @@
pbr>=0.5.21,<1.0
alembic>=0.4.1
Babel>=0.9.6
Django>=1.4,<1.6
django-openid-auth
iso8601>=0.1.8
markdown
oslo.config>=1.2.0
pecan>=0.2.0
python-openid
six>=1.4.1
Babel>=0.9.6
SQLAlchemy>=0.8,<=0.8.99
alembic>=0.4.1
oslo.config>=1.2.0
iso8601>=0.1.8
WSME>=0.5b6

View File

@ -31,6 +31,7 @@ data_files =
[entry_points]
console_scripts =
storyboard-api = storyboard.api.app:start
storyboard-db-manage = storyboard.db.migration.cli:main
[build_sphinx]

View File

86
storyboard/api/app.py Normal file
View File

@ -0,0 +1,86 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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 os
from oslo.config import cfg
import pecan
from storyboard.openstack.common.gettextutils import _ # noqa
from storyboard.openstack.common import log
from wsgiref import simple_server
from storyboard.api import config as api_config
CONF = cfg.CONF
LOG = log.getLogger(__name__)
API_OPTS = [
cfg.StrOpt('host',
default='0.0.0.0',
help='API host'),
cfg.IntOpt('port',
default=8080,
help='API port')
]
CONF.register_opts(API_OPTS, 'api')
def get_pecan_config():
# Set up the pecan configuration
filename = api_config.__file__.replace('.pyc', '.py')
return pecan.configuration.conf_from_file(filename)
def setup_app(pecan_config=None):
if not pecan_config:
pecan_config = get_pecan_config()
app = pecan.make_app(
pecan_config.app.root,
debug=CONF.debug,
force_canonical=getattr(pecan_config.app, 'force_canonical', True),
guess_content_type_from_ext=False
)
cfg.set_defaults(log.log_opts,
default_log_levels=[
'storyboard=INFO',
'sqlalchemy=WARN'
])
log.setup('storyboard')
return app
def start():
root = setup_app()
CONF(project='storyboard')
# Create the WSGI server and start it
host = cfg.CONF.api.host
port = cfg.CONF.api.port
srv = simple_server.make_server(host, port, root)
LOG.info(_('Starting server in PID %s') % os.getpid())
LOG.info(_("Configuration:"))
if host == '0.0.0.0':
LOG.info(_(
'serving on 0.0.0.0:%(port)s, view at http://127.0.0.1:%(port)s')
% ({'port': port}))
else:
LOG.info(_("serving on http://%(host)s:%(port)s") % (
{'host': host, 'port': port}))
srv.serve_forever()

23
storyboard/api/app.wsgi Normal file
View File

@ -0,0 +1,23 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from storyboard.api import app
from oslo.config import cfg
CONF = cfg.CONF
CONF(project='storyboard')
application = app.setup_app()

20
storyboard/api/config.py Normal file
View File

@ -0,0 +1,20 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
app = {
'root': 'storyboard.api.root_controller.RootController',
'modules': ['storyboard.api'],
'debug': False
}

View File

@ -0,0 +1,20 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from storyboard.api.v1.v1_controller import V1Controller
class RootController(object):
v1 = V1Controller()

View File

View File

@ -0,0 +1,36 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class ProjectGroupsController(rest.RestController):
@wsme_pecan.wsexpose(wsme_models.ProjectGroup, unicode)
def get_one(self, name):
group = wsme_models.ProjectGroup.get(name=name)
if not group:
raise ClientSideError("Project Group %s not found" % name,
status_code=404)
return group
@wsme_pecan.wsexpose([wsme_models.ProjectGroup])
def get(self):
groups = wsme_models.ProjectGroup.get_all()
return groups

View File

@ -0,0 +1,36 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class ProjectsController(rest.RestController):
@wsme_pecan.wsexpose(wsme_models.Project, unicode)
def get_one(self, name):
project = wsme_models.Project.get(name=name)
if not project:
raise ClientSideError("Project %s not found" % name,
status_code=404)
return project
@wsme_pecan.wsexpose([wsme_models.Project])
def get(self):
projects = wsme_models.Project.get_all()
return projects

View File

@ -0,0 +1,70 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class StoriesController(rest.RestController):
_custom_actions = {
"add_task": ["POST"],
"add_comment": ["POST"]
}
@wsme_pecan.wsexpose(wsme_models.Story, unicode)
def get_one(self, id):
story = wsme_models.Story.get(id=id)
if not story:
raise ClientSideError("Story %s not found" % id,
status_code=404)
return story
@wsme_pecan.wsexpose([wsme_models.Story])
def get(self):
stories = wsme_models.Story.get_all()
return stories
@wsme_pecan.wsexpose(wsme_models.Story, wsme_models.Story)
def post(self, story):
created_story = wsme_models.Story.create(wsme_entry=story)
if not created_story:
raise ClientSideError("Could not create a story")
return created_story
@wsme_pecan.wsexpose(wsme_models.Story, unicode, wsme_models.Story)
def put(self, story_id, story):
updated_story = wsme_models.Story.update("id", story_id, story)
if not updated_story:
raise ClientSideError("Could not update story %s" % story_id)
return updated_story
@wsme_pecan.wsexpose(wsme_models.Story, unicode, wsme_models.Task)
def add_task(self, story_id, task):
updated_story = wsme_models.Story.add_task(story_id, task)
if not updated_story:
raise ClientSideError("Could not add task to story %s" % story_id)
return updated_story
@wsme_pecan.wsexpose(wsme_models.Story, unicode, wsme_models.Comment)
def add_comment(self, story_id, comment):
updated_story = wsme_models.Story.add_comment(story_id, comment)
if not updated_story:
raise ClientSideError("Could not add comment to story %s"
% story_id)
return updated_story

View File

@ -0,0 +1,43 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class TasksController(rest.RestController):
@wsme_pecan.wsexpose(wsme_models.Task, unicode)
def get_one(self, id):
task = wsme_models.Task.get(id=id)
if not task:
raise ClientSideError("Task %s not found" % id,
status_code=404)
return task
@wsme_pecan.wsexpose([wsme_models.Task])
def get(self):
tasks = wsme_models.Task.get_all()
return tasks
@wsme_pecan.wsexpose(wsme_models.Task, unicode, wsme_models.Task)
def put(self, task_id, task):
updated_task = wsme_models.Task.update("id", task_id, task)
if not updated_task:
raise ClientSideError("Could not update story %s" % task_id)
return updated_task

View File

@ -0,0 +1,56 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class TeamsController(rest.RestController):
_custom_actions = {
"add_user": ["POST"]
}
@wsme_pecan.wsexpose(wsme_models.Team, unicode)
def get_one(self, name):
team = wsme_models.Team.get(name=name)
if not team:
raise ClientSideError("Team %s not found" % name,
status_code=404)
return team
@wsme_pecan.wsexpose([wsme_models.Team])
def get(self):
teams = wsme_models.Team.get_all()
return teams
@wsme_pecan.wsexpose(wsme_models.Team, wsme_models.Team)
def post(self, team):
created_team = wsme_models.Team.create(wsme_entry=team)
if not created_team:
raise ClientSideError("Could not create a team")
return created_team
@wsme_pecan.wsexpose(wsme_models.Team, unicode, unicode)
def add_user(self, team_name, username):
updated_team = wsme_models.Team.add_user(team_name, username)
if not updated_team:
raise ClientSideError("Could not add user %s to team %s"
% (username, team_name))
return updated_team

View File

@ -0,0 +1,50 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from pecan import rest
from wsme.exc import ClientSideError
import wsmeext.pecan as wsme_pecan
import storyboard.api.v1.wsme_models as wsme_models
class UsersController(rest.RestController):
@wsme_pecan.wsexpose([wsme_models.User])
def get(self):
users = wsme_models.User.get_all()
return users
@wsme_pecan.wsexpose(wsme_models.User, unicode)
def get_one(self, username):
user = wsme_models.User.get(username=username)
if not user:
raise ClientSideError("User %s not found" % username,
status_code=404)
return user
@wsme_pecan.wsexpose(wsme_models.User, wsme_models.User)
def post(self, user):
created_user = wsme_models.User.create(wsme_entry=user)
if not created_user:
raise ClientSideError("Could not create User")
return created_user
@wsme_pecan.wsexpose(wsme_models.User, unicode, wsme_models.User)
def put(self, username, user):
updated_user = wsme_models.User.update("username", username, user)
if not updated_user:
raise ClientSideError("Could not update user %s" % username)
return updated_user

View File

@ -0,0 +1,31 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from storyboard.api.v1.project_groups import ProjectGroupsController
from storyboard.api.v1.projects import ProjectsController
from storyboard.api.v1.stories import StoriesController
from storyboard.api.v1.tasks import TasksController
from storyboard.api.v1.teams import TeamsController
from storyboard.api.v1.users import UsersController
class V1Controller(object):
project_groups = ProjectGroupsController()
projects = ProjectsController()
teams = TeamsController()
users = UsersController()
stories = StoriesController()
tasks = TasksController()

View File

@ -0,0 +1,287 @@
# Copyright (c) 2013 Mirantis Inc.
#
# 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.
from datetime import datetime
import six
import warnings
from wsme import types as wtypes
from oslo.config import cfg
from sqlalchemy.exc import SADeprecationWarning
import storyboard.db.models as sqlalchemy_models
from storyboard.openstack.common.db.sqlalchemy import session as db_session
CONF = cfg.CONF
class _Base(wtypes.Base):
id = int
created_at = datetime
updated_at = datetime
def __init__(self, **kwargs):
for key, val in six.iteritems(kwargs):
setattr(self, key, val)
super(_Base, self).__init__(**kwargs)
@classmethod
def get(cls, **kwargs):
query = cls.from_db(**kwargs)
entry = query.first()
return convert_to_wsme(cls, entry)
@classmethod
def get_all(cls, **kwargs):
query = cls.from_db(**kwargs)
entries = query.all()
return [convert_to_wsme(cls, entry) for entry in entries]
@classmethod
def create(cls, session=None, wsme_entry=None):
if not session:
session = db_session.get_session(sqlite_fk=True)
with session.begin():
db_entry = convert_to_db_model(cls, wsme_entry, session)
session.add(db_entry)
return cls.get(id=db_entry.id)
@classmethod
def update(cls, key_property_name="id", key_property_value=None,
wsme_entry=None):
db_entry = cls.from_db(**{key_property_name: key_property_value})\
.first()
if not db_entry:
return None
session = db_session.get_session(sqlite_fk=True)
with session.begin():
updated_db_model = update_db_model(cls, db_entry, wsme_entry)
session.add(updated_db_model)
return cls.get(id=db_entry.id)
@classmethod
def add_item(cls, cont_key_name, cont_key_value, item_cls, item_key_name,
item_key_value, container_name):
session = db_session.get_session(sqlite_fk=True)
with session.begin():
db_container_enty = cls.from_db(session=session,
**{cont_key_name: cont_key_value})\
.first()
if not db_container_enty:
return None
db_add_item = item_cls.from_db(session=session,
**{item_key_name: item_key_value}).\
first()
if not db_add_item:
return None
getattr(db_container_enty, container_name).append(db_add_item)
session.add(db_container_enty)
return cls.get(**{cont_key_name: cont_key_value})
@classmethod
def create_and_add_item(cls, cont_key_name, cont_key_value, item_cls,
item_value, container_name):
wsme_item = item_cls.create(wsme_entry=item_value)
if not wsme_item:
return None
return cls.add_item(cont_key_name, cont_key_value, item_cls, "id",
wsme_item.id, container_name)
@classmethod
def from_db(cls, session=None, **kwargs):
model_cls = WSME_TO_SQLALCHEMY[cls]
if not session:
session = db_session.get_session(sqlite_fk=True)
query = session.query(model_cls)
return query.filter_by(**kwargs)
warnings.simplefilter("ignore", SADeprecationWarning)
def convert_to_wsme(cls, entry):
if not entry:
return None
wsme_object = cls()
for attr in cls._wsme_attributes:
attr_name = attr.name
value = getattr(entry, attr_name)
if value is None:
continue
if isinstance(attr._get_datatype(), _Base):
value = convert_to_wsme(SQLALCHEMY_TO_WSME[type(attr)], value)
if isinstance(attr._get_datatype(), wtypes.ArrayType):
value = [convert_to_wsme(SQLALCHEMY_TO_WSME[type(item)], item)
for item in value]
setattr(wsme_object, attr_name, value)
return wsme_object
def convert_to_db_model(cls, entry, session):
if not entry:
return None
model_cls = WSME_TO_SQLALCHEMY[cls]
model_object = model_cls()
for attr in cls._wsme_attributes:
attr_name = attr.name
value = getattr(entry, attr_name)
if value is None or isinstance(value, wtypes.UnsetType):
continue
if isinstance(attr._get_datatype(), _Base):
value = convert_to_db_model(type(attr), value, session)
session.add(value)
if isinstance(attr._get_datatype(), wtypes.ArrayType):
value = [convert_to_db_model(attr._get_datatype().item_type,
item,
session)
for item in value]
setattr(model_object, attr_name, value)
return model_object
def update_db_model(cls, db_entry, wsme_entry):
if not db_entry or not wsme_entry:
return None
for attr in cls._wsme_attributes:
attr_name = attr.name
value = getattr(wsme_entry, attr_name)
if isinstance(value, wtypes.UnsetType):
continue
setattr(db_entry, attr_name, value)
return db_entry
class Project(_Base):
name = wtypes.text
description = wtypes.text
class ProjectGroup(_Base):
name = wtypes.text
title = wtypes.text
projects = wtypes.ArrayType(Project)
class Permission(_Base):
pass
class Task(_Base):
pass
class StoryTag(_Base):
pass
class Comment(_Base):
#todo(nkonovalov): replace with a enum
action = wtypes.text
comment_type = wtypes.text
content = wtypes.text
story_id = int
author_id = int
class Story(_Base):
title = wtypes.text
description = wtypes.text
is_bug = bool
#todo(nkonovalov): replace with a enum
priority = wtypes.text
tasks = wtypes.ArrayType(Task)
comments = wtypes.ArrayType(Comment)
tags = wtypes.ArrayType(StoryTag)
@classmethod
def add_task(cls, story_id, task):
return cls.create_and_add_item("id", story_id, Task, task, "tasks")
@classmethod
def add_comment(cls, story_id, comment):
return cls.create_and_add_item("id", story_id, Comment, comment,
"comments")
class User(_Base):
username = wtypes.text
first_name = wtypes.text
last_name = wtypes.text
email = wtypes.text
is_staff = bool
is_active = bool
is_superuser = bool
last_login = datetime
#teams = wtypes.ArrayType(Team)
permissions = wtypes.ArrayType(Permission)
#tasks = wtypes.ArrayType(Task)
class Team(_Base):
name = wtypes.text
users = wtypes.ArrayType(User)
permissions = wtypes.ArrayType(Permission)
@classmethod
def add_user(cls, team_name, username):
return cls.add_item("name", team_name,
User, "username", username,
"users")
SQLALCHEMY_TO_WSME = {
sqlalchemy_models.Team: Team,
sqlalchemy_models.User: User,
sqlalchemy_models.ProjectGroup: ProjectGroup,
sqlalchemy_models.Project: Project,
sqlalchemy_models.Permission: Permission,
sqlalchemy_models.Story: Story,
sqlalchemy_models.Task: Task,
sqlalchemy_models.Comment: Comment,
sqlalchemy_models.StoryTag: StoryTag
}
# database mappings
WSME_TO_SQLALCHEMY = dict(
(v, k) for k, v in six.iteritems(SQLALCHEMY_TO_WSME)
)