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# -*- coding: utf8 -*-
# ============LICENSE_START=======================================================
# org.onap.vvp/validation-scripts
# ===================================================================
# Copyright © 2020 AT&T Intellectual Property. All rights reserved.
# ===================================================================
#
# Unless otherwise specified, all software contained herein is licensed
# under the Apache License, Version 2.0 (the "License");
# you may not use this software 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.
#
#
#
# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the "License");
# you may not use this documentation except in compliance with the License.
# You may obtain a copy of the License at
#
# https://creativecommons.org/licenses/by/4.0/
#
# Unless required by applicable law or agreed to in writing, documentation
# 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.
#
# ============LICENSE_END============================================
import argparse
import json
from onap_client.resource import Resource
from onap_client.config import LOG as logger
from onap_client.client.clients import import_submodules
from onap_client.exceptions import InvalidSpecException, ResourceTypeNotFoundException
def dumper(obj):
try:
return obj.toJSON()
except: # noqa: E722
return str(obj)
def list_spec_resources():
for subclass in Resource.__subclasses__():
print(subclass.resource_name)
def show_resource_spec(resource_name):
for subclass in Resource.__subclasses__():
if resource_name == subclass.resource_name:
print(json.dumps(subclass.spec, default=dumper, indent=4))
return subclass.spec
print(
"Resource {} not found. This is the list of available resources:".format(
resource_name
)
)
list_spec_resources()
def load_spec(input_spec, validate_only=False):
try:
with open(input_spec, "r") as f:
jdata = json.loads(f.read())
except json.decoder.JSONDecodeError:
print("{} is not valid json, exiting...".format(input_spec))
raise
engine = SpecEngine()
return engine.load_spec(jdata, validate_only=validate_only)
def spec_cli(args):
parser = argparse.ArgumentParser(description="Spec Engine CLI")
parser.add_argument(
"--load-spec",
required=False,
help="Load a local spec file into the ONAP client spec engine.",
)
parser.add_argument(
"--validate-spec",
required=False,
help="Validates a local spec file for the spec engine.",
)
parser.add_argument(
"--show-resource-spec", required=False, help="Show spec for a given resource."
)
parser.add_argument(
"--list-spec-resources",
action="store_true",
required=False,
help="List available spec resources.",
)
arguments = parser.parse_args(args)
if arguments.list_spec_resources:
list_spec_resources()
elif arguments.show_resource_spec:
show_resource_spec(arguments.show_resource_spec)
elif arguments.validate_spec:
print(json.dumps(load_spec(arguments.validate_spec, validate_only=True), indent=4))
elif arguments.load_spec:
load_spec(arguments.load_spec)
class SpecEngine:
def __init__(self):
self.initialize()
self.spec = {}
def initialize(self):
import_submodules("onap_client")
def load_spec(self, spec, distribute=True, validate_only=False):
# print("loading spec {}".format(spec))
self.spec = resolve_spec(spec)
self.validate(self.spec.get("spec", {}))
if not validate_only:
self._create(self.spec.get("spec", {}), distribute)
return self.spec
def validate(self, spec):
if not isinstance(spec, list):
raise InvalidSpecException(
"Input spec to spec engine must be a list, but is type {}".format(
type(spec)
)
)
for item_spec in spec:
if not isinstance(item_spec, dict):
raise InvalidSpecException(
"Items in input spec to engine must be dict, but is type {}".format(
type(item_spec)
)
)
resource_type = item_spec.get("type")
if not resource_type:
raise InvalidSpecException(
"Items in input spec must contain key/value item for 'type:'"
)
resource_spec = item_spec.get("resource_spec")
if not resource_spec:
raise InvalidSpecException(
"Items in input spec must contain key/value item for 'resource_spec:'"
)
subclass = get_resource_subclass(resource_type)
if not subclass:
raise ResourceTypeNotFoundException(
"Resource type {} was not found".format(resource_type)
)
subclass.validate(resource_spec)
def _create(self, spec, distribute):
full_engine_spec = []
for item_spec in spec:
resource_type = item_spec.get("type")
resource_spec = item_spec.get("resource_spec")
subclass = get_resource_subclass(resource_type)
if not subclass:
raise ResourceTypeNotFoundException(
"Resource type {} was not found".format(resource_type)
)
full_spec = subclass.validate(resource_spec)
logger.debug(json.dumps(full_spec, indent=4))
subclass.create_from_spec(full_spec, submit=distribute)
full_engine_spec.append({"type": resource_type, "resource_spec": full_spec})
logger.info(json.dumps(full_engine_spec, indent=4))
def resolve_spec(spec_dict):
specs = spec_dict.get("spec")
parameters = spec_dict.get("parameters", {})
for param_name, param_val in parameters.items():
specs = replace(specs, "{{{{{}}}}}".format(param_name), param_val)
spec_dict["spec"] = specs
return spec_dict
def replace(data, match, repl):
if isinstance(data, dict):
return {k: replace(v, match, repl) for k, v in data.items()}
elif isinstance(data, list):
return [replace(i, match, repl) for i in data]
else:
return repl if data == match else data
def get_resource_subclass(subclass_name):
for subclass in Resource.__subclasses__():
if subclass.resource_name == subclass_name:
return subclass
return None
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