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#!/usr/bin/env python
# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
"""
Used to launch Functest RestApi
"""
import inspect
import logging
import socket
from urlparse import urljoin
import pkg_resources
from flask import Flask
from flask_restful import Api
from flasgger import Swagger
from functest.api.base import ApiResource
from functest.api.common import api_utils
from functest.api.database.db import BASE
from functest.api.database.db import DB_SESSION
from functest.api.database.db import ENGINE
from functest.api.database.v1 import models
from functest.api.urls import URLPATTERNS
LOGGER = logging.getLogger(__name__)
APP = Flask(__name__)
API = Api(APP)
Swagger(APP)
@APP.teardown_request
def shutdown_session(exception=None): # pylint: disable=unused-argument
"""
To be called at the end of each request whether it is successful
or an exception is raised
"""
DB_SESSION.remove()
def get_resource(resource_name):
""" Obtain the required resource according to resource name """
name = ''.join(resource_name.split('_'))
return next((r for r in api_utils.itersubclasses(ApiResource)
if r.__name__.lower() == name))
def get_endpoint(url):
""" Obtain the endpoint of url """
address = socket.gethostbyname(socket.gethostname())
return urljoin('http://{}:5000'.format(address), url)
def api_add_resource():
"""
The resource has multiple URLs and you can pass multiple URLs to the
add_resource() method on the Api object. Each one will be routed to
your Resource
"""
for url_pattern in URLPATTERNS:
try:
API.add_resource(
get_resource(url_pattern.target), url_pattern.url,
endpoint=get_endpoint(url_pattern.url))
except StopIteration:
LOGGER.error('url resource not found: %s', url_pattern.url)
def init_db():
"""
Import all modules here that might define models so that
they will be registered properly on the metadata, and then
create a database
"""
def func(subcls):
""" To check the subclasses of BASE"""
try:
if issubclass(subcls[1], BASE):
return True
except TypeError:
pass
return False
# pylint: disable=bad-builtin
subclses = filter(func, inspect.getmembers(models, inspect.isclass))
LOGGER.debug('Import models: %s', [subcls[1] for subcls in subclses])
BASE.metadata.create_all(bind=ENGINE)
def main():
"""Entry point"""
logging.config.fileConfig(pkg_resources.resource_filename(
'functest', 'ci/logging.ini'))
logging.captureWarnings(True)
LOGGER.info('Starting Functest server')
api_add_resource()
init_db()
APP.run(host='0.0.0.0')
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