96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
#
|
|
# 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 logging
|
|
import json
|
|
|
|
from webob.exc import Response
|
|
|
|
from heat.common import wsgi
|
|
from heat.metadata import db as db_api
|
|
from heat.metadata.db import (ConflictError, StackNotFoundError,
|
|
ResourceNotFoundError)
|
|
|
|
|
|
def json_response(http_status, data):
|
|
"""Create a JSON response with a specific HTTP code."""
|
|
response = Response(json.dumps(data))
|
|
response.status = http_status
|
|
response.content_type = 'application/json'
|
|
return response
|
|
|
|
def json_error(http_status, message):
|
|
"""Create a JSON error response."""
|
|
body = {'error': message}
|
|
return json_response(http_status, body)
|
|
|
|
class MetadataController:
|
|
def __init__(self, options):
|
|
self.options = options
|
|
|
|
def entry_point(self, req):
|
|
return {
|
|
'name': 'Heat Metadata Server API',
|
|
'version': '1',
|
|
}
|
|
|
|
def list_stacks(self, req):
|
|
return db_api.list_stacks()
|
|
|
|
def list_resources(self, req, stack_name):
|
|
try:
|
|
resources = db_api.list_resources(stack_name)
|
|
except StackNotFoundError:
|
|
return json_error(404, 'The stack "%s" does not exist.' % stack_name)
|
|
return resources
|
|
|
|
def get_resource(self, req, stack_name, resource_id):
|
|
try:
|
|
resource = db_api.get_resource(stack_name, resource_id)
|
|
except StackNotFoundError:
|
|
return json_error(404, 'The stack "%s" does not exist.' % stack_name)
|
|
except ResourceNotFoundError:
|
|
return json_error(404, 'The resource "%s" does not exist.' % resource_id)
|
|
return resource
|
|
|
|
def create_stack(self, req, body, stack_name):
|
|
try:
|
|
stack = db_api.create_stack(stack_name, body)
|
|
except ConflictError:
|
|
return json_error(409, 'The stack "%s" already exists.' % stack_name)
|
|
return json_response(201, stack)
|
|
|
|
def update_metadata(self, req, body, stack_name, resource_id):
|
|
try:
|
|
db_api.update_resource_metadata(stack_name, resource_id, body)
|
|
except StackNotFoundError:
|
|
return json_error(409, 'The stack "%s" does not exist.' % stack_name)
|
|
except ResourceNotFoundError:
|
|
# The resource doesn't exit yet, create it.
|
|
db_api.create_resource_metadata(stack_name, resource_id, body)
|
|
return json_response(201, {
|
|
'resource': resource_id,
|
|
'metadata': body,
|
|
})
|
|
|
|
def create_resource(options):
|
|
"""
|
|
Stacks resource factory method.
|
|
"""
|
|
deserializer = wsgi.JSONRequestDeserializer()
|
|
serializer = wsgi.JSONResponseSerializer()
|
|
return wsgi.Resource(MetadataController(options), deserializer, serializer)
|
|
|