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_check',
57 action='store_true', default=False,
58 help=_('Ignore input parameter validation '
59 'when parse template.'))
61 parser.add_argument('--debug', dest='debug_mode',
62 action='store_true', default=False,
63 help=_('debug mode for print more details '
64 'other than raise exceptions when '
65 'errors happen as possible'))
70 parser = self.get_parser(argv)
71 (args, extra_args) = parser.parse_known_args(argv)
72 path = args.template_file
73 nrpv = args.no_required_paras_check
74 debug = args.debug_mode
76 if os.path.isfile(path):
77 self.parse(path, no_required_paras_check=nrpv, debug_mode=debug)
78 elif toscaparser.utils.urlutils.UrlUtils.validate_url(path):
79 self.parse(path, False,
80 no_required_paras_check=nrpv,
83 raise ValueError(_('"%(path)s" is not a valid file.')
86 def parse(self, path, a_file=True, no_required_paras_check=False,
88 nrpv = no_required_paras_check
90 tosca = ToscaTemplate(path, None, a_file,
91 no_required_paras_check=nrpv,
92 debug_mode=debug_mode)
93 except ValidationError as e:
100 if tosca and hasattr(tosca, 'version'):
101 print("\nversion: " + tosca.version)
103 print("\nversion: " + "unknown")
105 if tosca and hasattr(tosca, 'description'):
106 description = tosca.description
108 print("\ndescription: " + description)
110 if tosca and hasattr(tosca, 'inputs'):
111 inputs = tosca.inputs
115 print("\t" + input.name)
117 if tosca and hasattr(tosca, 'nodetemplates'):
118 nodetemplates = tosca.nodetemplates
120 print("\nnodetemplates:")
121 for node in nodetemplates:
122 print("\t" + node.name)
124 # example of retrieving policy object
125 '''if hasattr(tosca, 'policies'):
126 policies = tosca.policies
129 for policy in policies:
130 print("\t" + policy.name)
133 for trigger in policy.triggers:
134 print("\ttrigger name:" + trigger.name)'''
136 if tosca and hasattr(tosca, 'outputs'):
137 outputs = tosca.outputs
140 for output in outputs:
141 print("\t" + output.name)
147 ParserShell().main(args)
150 if __name__ == '__main__':