heat-translator/heat_translator.py
Vahid Hashemian b4315feb45 Handle URLs for input templates and imports
Allow input templates and imported custom types to be provided as URLs
with Heat-Translator auto-detecting the type (file vs URL), and add
necessary unit tests.

Note, since for some test cases currently the required file does not
exist on github, we temporarily use files hosted somewhere else. Once
the patch is merged a follow-on patch will be submitted to fix that
issue and use URLs of the new files that are submitted with this patch.

Change-Id: I79c07c228d9d4de22f84ef384d46e3605b9a649e
Closes-Bug: #1340748
Partially Implements: blueprint tosca-namespaces
2015-10-01 16:12:32 -07:00

108 lines
3.8 KiB
Python

# 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.config
import os
import sys
from toscaparser.tosca_template import ToscaTemplate
from toscaparser.utils.gettextutils import _
from toscaparser.utils.urlutils import UrlUtils
from translator.hot.tosca_translator import TOSCATranslator
"""
Test the heat-translator from command line as:
#python heat_translator.py
--template-file=<path to the YAML template>
--template-type=<type of template e.g. tosca>
--parameters="purpose=test"
Takes three user arguments,
1. type of translation (e.g. tosca) (required)
2. Path to the file that needs to be translated (required)
3. Input parameters (optional)
This should be only used for testing purpose. The proper use of
Heat-Translator tool is via python-heatclient once it made available there.
"""
logging.config.fileConfig('heat_translator_logging.conf')
log = logging.getLogger("heat-translator")
def main():
if len(sys.argv) < 3:
msg = _("The program requires minimum two arguments. "
"Please refer to the usage documentation.")
raise ValueError(msg)
if "--template-file=" not in sys.argv[1]:
msg = _("The program expects --template-file as first argument. "
"Please refer to the usage documentation.")
raise ValueError(msg)
if "--template-type=" not in sys.argv[2]:
msg = _("The program expects --template-type as second argument. "
"Please refer to the usage documentation.")
raise ValueError(msg)
path = sys.argv[1].split('--template-file=')[1]
# e.g. --template_file=translator/tests/data/tosca_helloworld.yaml
template_type = sys.argv[2].split('--template-type=')[1]
# e.g. --template_type=tosca
supported_types = ['tosca']
if not template_type:
raise ValueError(_("Template type is needed. For example, 'tosca'"))
elif template_type not in supported_types:
raise ValueError(_("%(value)s is not a valid template type.")
% {'value': template_type})
parsed_params = {}
if len(sys.argv) > 3:
parsed_params = parse_parameters(sys.argv[3])
a_file = os.path.isfile(path)
a_url = UrlUtils.validate_url(path) if not a_file else False
if a_file or a_url:
heat_tpl = translate(template_type, path, parsed_params, a_file)
if heat_tpl:
write_output(heat_tpl)
else:
raise ValueError(_("The path %(path)s is not a valid file or URL.") %
{'path': path})
def parse_parameters(parameter_list):
parsed_inputs = {}
if parameter_list.startswith('--parameters'):
inputs = parameter_list.split('--parameters=')[1].\
replace('"', '').split(';')
for param in inputs:
keyvalue = param.split('=')
parsed_inputs[keyvalue[0]] = keyvalue[1]
else:
raise ValueError(_("%(param) is not a valid parameter.")
% parameter_list)
return parsed_inputs
def translate(sourcetype, path, parsed_params, a_file):
output = None
if sourcetype == "tosca":
tosca = ToscaTemplate(path, parsed_params, a_file)
translator = TOSCATranslator(tosca, parsed_params)
output = translator.translate()
return output
def write_output(output):
print(output)
if __name__ == '__main__':
main()