1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
class HandlerBase(object):
def __init__(self, topology, model):
self._topology = topology
self._model = model
def coerce(self, **kwargs):
raise NotImplementedError
def _coerce(self, *models, **kwargs):
for template in models:
self._topology.coerce(template, **kwargs)
def validate(self, **kwargs):
raise NotImplementedError
def _validate(self, *models, **kwargs):
for template in models:
self._topology.validate(template, **kwargs)
def dump(self, out_stream):
raise NotImplementedError
class TemplateHandlerBase(HandlerBase):
"""
Base handler for template based models
"""
def instantiate(self, instance_cls, **kwargs):
raise NotImplementedError
class InstanceHandlerBase(HandlerBase):
"""
Base handler for instance based models
"""
def validate(self, **kwargs):
raise NotImplementedError
def coerce(self, **kwargs):
raise NotImplementedError
def dump(self, out_stream):
raise NotImplementedError
class ActorHandlerBase(HandlerBase):
"""
Base handler for any model which has (or contains a field which references) an operation
"""
def configure_operations(self):
raise NotImplementedError
|
