1 # Licensed under the Apache License, Version 2.0 (the "License"); you may
2 # not use this file except in compliance with the License. You may obtain
3 # a copy of the License at
5 # http://www.apache.org/licenses/LICENSE-2.0
7 # Unless required by applicable law or agreed to in writing, software
8 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
9 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
10 # License for the specific language governing permissions and limitations
19 from toscaparser.common.exception import ValidationError
20 from toscaparser.tosca_template import ToscaTemplate
21 from toscaparser.utils.gettextutils import _
22 import toscaparser.utils.urlutils
25 CLI entry point to show how TOSCA Parser can be used programmatically
27 This is a basic command line utility showing the entry point in the
28 TOSCA Parser and how to iterate over parsed template. It can be extended
29 or modified to fit an individual need.
32 #tosca-parser --template-file=<path to the YAML template>
33 #tosca-parser --template-file=<path to the CSAR zip file>
34 #tosca-parser --template-file=<URL to the template or CSAR>
38 --template-file=toscaparser/tests/data/tosca_helloworld.yaml
40 --template-file=toscaparser/tests/data/CSAR/csar_hello_world.zip
43 log = logging.getLogger("tosca.model")
46 class ParserShell(object):
48 def get_parser(self, argv):
49 parser = argparse.ArgumentParser(prog="tosca-parser")
51 parser.add_argument('--template-file',
54 help=_('YAML template or CSAR file to parse.'))
56 parser.add_argument('-nrpv', dest='no_required_paras_valid',
57 action='store_true', default=False,
58 help=_('Ignore input parameter validation '
59 'when parse template.'))
64 parser = self.get_parser(argv)
65 (args, extra_args) = parser.parse_known_args(argv)
66 path = args.template_file
67 nrpv = args.no_required_paras_valid
68 if os.path.isfile(path):
69 self.parse(path, no_req_paras_valid=nrpv)
70 elif toscaparser.utils.urlutils.UrlUtils.validate_url(path):
71 self.parse(path, False, no_req_paras_valid=nrpv)
73 raise ValueError(_('"%(path)s" is not a valid file.')
76 def parse(self, path, a_file=True, no_req_paras_valid=False):
80 tosca = ToscaTemplate(path, None, a_file,
81 no_required_paras_valid=no_req_paras_valid)
82 except ValidationError as e:
83 msg = _(' ===== main service template ===== ')
88 version = tosca.version
90 print("\nversion: " + version)
92 if hasattr(tosca, 'description'):
93 description = tosca.description
95 print("\ndescription: " + description)
97 if hasattr(tosca, 'inputs'):
102 print("\t" + input.name)
104 if hasattr(tosca, 'nodetemplates'):
105 nodetemplates = tosca.nodetemplates
107 print("\nnodetemplates:")
108 for node in nodetemplates:
109 print("\t" + node.name)
111 # example of retrieving policy object
112 '''if hasattr(tosca, 'policies'):
113 policies = tosca.policies
116 for policy in policies:
117 print("\t" + policy.name)
120 for trigger in policy.triggers:
121 print("\ttrigger name:" + trigger.name)'''
123 if hasattr(tosca, 'outputs'):
124 outputs = tosca.outputs
127 for output in outputs:
128 print("\t" + output.name)
134 ParserShell().main(args)
137 if __name__ == '__main__':