First code drop on data modeling.
This is the first code drop for the project. Covers basis project structure and reading tosca profile into a memory model.
This commit is contained in:
parent
c4d3e7e25b
commit
7fa547a3c1
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def write_output(output):
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pass
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#!/usr/bin/env python
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import exit
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import os
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import sys
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from source import Source
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from tosca.translate import TOSCATranslator
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from tosca.tosca_profile import Tosca
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from tosca.validate import ToscaValidator
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def main():
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sourcetype = sys.argv[1]
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path = sys.argv[2]
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#sourcetype = "tosca"
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#path = "/heat-translator/tosca/tests/tosca.yaml"
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if not sourcetype:
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print("Translation type is needed. For example, 'tosca'")
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if not path.endswith(".yaml"):
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print "Only YAML file is supported at this time."
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if os.path.isdir(path):
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print('Translation of directory is not supported at this time : %s' % path)
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elif os.path.isfile(path):
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heat_tpl = translate(sourcetype, path)
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exit.write_output(heat_tpl)
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else:
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print('%s is not a valid file.' % path)
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def translate(sourcetype, path):
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tpl = Source(path)
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if sourcetype == "tosca":
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tosca = Tosca(tpl)
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ToscaValidator(tosca).validate()
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return TOSCATranslator(tosca).translate()
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if __name__ == '__main__':
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main()
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from yaml_loader import Loader
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class Source(object):
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def __init__(self, path):
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self.profile = Loader(path).load()
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def __contains__(self, key):
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return key in self.profile
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def __iter__(self):
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return iter(self.profile)
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def __len__(self):
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return len(self.profile)
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def __getitem__(self, key):
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'''Get a section.'''
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return self.profile[key]
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from tosca.nodetemplates.schema import Schema
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from tosca.nodetemplates.constraints import Constraint
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class InputParameters(object):
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def __init__(self, inputs):
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self.inputs = inputs
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def __contains__(self, key):
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return key in self.inputs
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def __iter__(self):
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return iter(self.inputs)
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def __len__(self):
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return len(self.inputs)
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def __getitem__(self, key):
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'''Get a input value.'''
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return self.inputs[key]
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class Input(object):
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def __init__(self, name, schema):
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self.name = name
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self.schema = schema
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def get_type(self):
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return self.schema['type']
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def get_description(self):
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if self.has_default():
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return self.schema['description']
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return ''
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def get_default(self):
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if self.has_default():
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return self.schema['default']
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return ''
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def get_constraints(self):
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return self.schema['constraints']
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def has_default(self):
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'''Return whether the parameter has a default value.'''
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return Schema.DEFAULT in self.schema
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def has_description(self):
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'''Return whether the parameter has a default value.'''
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return Schema.DESCRIPTION in self.schema
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def validate(self):
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self.validate_type(self.get_type())
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self.validate_constraints(self.get_constraints())
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def validate_type(self, input_type):
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if input_type not in Schema.TYPES:
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raise ValueError('Invalid type %s' % type)
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def validate_constraints(self, constraints):
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for constraint in constraints:
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for key in constraint.keys():
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if key not in Constraint.CONSTRAINTS:
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raise ValueError('Invalid constraint %s' % constraint)
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if isinstance(key, dict): #and is_required to have a min or max or in certain range or equal to something etc.
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pass
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import numbers
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class Constraint(object):
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CONSTRAINTS = (EQUAL, GREATER_THAN,
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GREATER_OR_EQUAL, LESS_THAN, LESS_OR_EQUAL, IN_RANGE, VALID_VALUES,
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LENGTH, MIN_LENGHT, MAX_LENGTH, PATTERN) = \
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('equal', 'greater_than', 'greater_or_equal',
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'less_than', 'less_or_equal', 'in_range', 'valid_values', 'length', 'min_length',
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'max_length', 'pattern')
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def __init__(self, propertyname, value, constraint):
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self.propertyname = propertyname
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self.value = value
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self.constraint = constraint #dictionary e.g. valid_values: [ 1, 2, 4, 8 ] or greater_or_equal: 1
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def validate(self):
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# for key in self.constraint.iterkeys():
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for key, value in self.constraint.iteritems():
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if key == "greater_or_equal":
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self.validate_greater_than(value)
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def validate_equal(self):
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pass
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def validate_greater_than(self, value):
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if self.value < value:
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print("%s value requires to be greater than %s" % (self.propertyname, value))
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def validate_greater_or_equal(self):
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pass
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def validate_less_than(self):
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pass
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def validate_less_or_equal(self):
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pass
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def validate_in_range(self):
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pass
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def validate_valid_values(self):
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pass
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def validate_length(self):
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pass
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def validate_min_length(self):
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pass
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def validate_max_length(self):
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pass
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def validate_pattern(self):
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pass
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@staticmethod
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def validate_integer(value):
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if not isinstance(value, (int, long)):
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import pdb
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pdb.set_trace()
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raise TypeError('value is not an integer for %s' %value)
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return Constraint.validate_number(value)
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@staticmethod
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def validate_number(value):
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return Constraint.str_to_num(value)
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@staticmethod
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def validate_string(value):
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if not isinstance(value, basestring):
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raise ValueError('Value must be a string %s' %value)
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return value
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@staticmethod
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def validate_list(self, value):
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pass
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@staticmethod
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def str_to_num(value):
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"""Convert a string representation of a number into a numeric type."""
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if isinstance(value, numbers.Number):
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return value
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try:
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return int(value)
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except ValueError:
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return float(value)
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from properties import Property
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from tosca.nodetemplates.schema import Schema
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from tosca.inputs import InputParameters
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from tosca.inputs import Input
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from tosca.nodetemplates.node_templates import NodeTemplates
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class NodeTemplate(object):
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def __init__(self, name, nodetemplate, tosca):
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self.name = name
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self.nodetemplate = nodetemplate
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self.tosca = tosca
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def get_node(self):
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return self.nodetemplate
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def get_name(self):
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return self.name
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def get_type(self):
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return self.nodetemplate['type']
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def get_properties(self):
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return self.nodetemplate['properties']
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def validate(self):
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self.validate_prpoerties()
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self.validate_type()
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#TODO
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def validate_type(self):
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pass
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#TODO
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def validate_relationship(self):
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pass
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def validate_prpoerties(self):
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'''validate that required properties for a particular nodetype is provided and matches constraints'''
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nodetype = self.get_type()
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required_props = Schema(nodetype).required()
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for req in required_props:
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if req not in self.get_properties():
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raise ValueError('Missing required property %s' %req)
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for prop, val in self.get_properties().iteritems():
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if isinstance(val, dict):
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for key, value in val.iteritems():
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if key == "get_input":
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val = self.get_input_ref(value)
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break
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if key == "get_property":
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val = self.get_property_ref(value, self.tosca)
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if val is not None:
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Property(prop, self.get_type(), val).validate()
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def get_input_ref(self, ref):
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''' get input reference, for example, get_input: db_user '''
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input_val = self.tosca.get_inputs()[ref]
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if Input(ref, input_val).has_default():
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return Input(ref, input_val).get_default()
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@classmethod
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def get_property_ref(cls, ref, t):
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''' get property reference, for example, get_property: [ mysql, db_user ] '''
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item = ref[0]
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n = t.get_nodetemplates()[item]
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c = cls(item, n, t)
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for val in c.get_properties().itervalues():
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if isinstance(val, dict):
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for key, value in val.iteritems():
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if key == "get_input":
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return c.get_input_ref(value)
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def get_relationship(self):
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return self.nodetemplate['requirements']
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def get_hostedOn_relationship(self):
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hosted = []
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r = self.get_relationship()
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for key, value in r.iteritems():
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if key == "host":
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hosted.append(value)
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return hosted
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def get_dependsOn_relationship(self):
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depends = []
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r = self.get_relationship()
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for key, value in r.iteritems():
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if key == "dependency":
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depends.append(value)
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return depends
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def get_connectedTo_relationship(self):
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connected = []
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r = self.get_relationship()
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for key, value in r.iteritems():
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if key == "database":
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connected.append(value)
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return connected
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def is_hostedOn(self):
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pass
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def is_dependsOn(self):
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pass
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def is_connectedTo(self):
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pass
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def get_interfaces(self):
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return self.nodetemplate['interfaces']
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def get_interface_inputs(self, interface):
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i = self.get_interfaces()
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for key, value in i.iteritems():
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if key == interface:
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return value
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from tosca.tosca_profile import Tosca
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class NodeTemplates(object):
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def __init__(self, nodetemplates):
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self.nodetemplates = nodetemplates
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def __contains__(self, key):
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return key in self.nodetemplates
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def __iter__(self):
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return iter(self.nodetemplates)
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def __len__(self):
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return len(self.nodetemplates)
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def __getitem__(self, key):
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'''Get a node template value.'''
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return self.nodetemplates[key]
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from rootnodetype import RootNodeType
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class NodeType(RootNodeType):
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def __init__(self, nodetype):
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super(NodeType, self).__init__()
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self.nodetype = nodetype
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''' get properties for a given node type'''
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def get_properties(self):
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properties = []
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nodetype = self.get_nodetype()
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for prop_key, prop_vale in nodetype.iteritems():
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if prop_key == 'properties':
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properties = prop_vale
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return properties
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''' get capabilities for a given node type'''
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def get_capabilities(self):
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pass
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def derived_from(self):
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pass
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def set_requirements(self):
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pass
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def get_requirements(self):
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return self.requirements()
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tosca_nodes_Compute:
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num_cpus:
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required: no
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type: integer
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constraints:
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- greater_or_equal: 1
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description: >
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Number of (actual or virtual) CPUs associated with the Compute node.
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disk_size:
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required: no
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type: integer
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constraints:
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- greater_or_equal: 0
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description: >
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Size of the local disk, in Gigabytes (GB), available to applications running on the Compute node.
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mem_size:
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required: no
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type: integer
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constraints:
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- greater_or_equal: 0
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description: >
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Size of memory, in Megabytes (MB), available to applications running on the Compute node.
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os_arch:
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required: no
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default: x86_64
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type: string
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description: >
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The host Operating System (OS) architecture.
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os_type:
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required: yes
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type: string
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description: >
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The host Operating System (OS) type.
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os_distribution:
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required: no
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type: string
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description: >
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The host Operating System (OS) distribution. Examples of valid values for an “os_type” of “Linux” would include:
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debian, fedora, rhel and ubuntu.
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os_version:
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required: no
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type: integer
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description: >
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The host Operating System version.
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ip_address:
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required: no
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type: string
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description: >
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The primary IP address assigned by the cloud provider that applications may use to access the Compute node.
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tosca_nodes_Root:
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properties:
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- property
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capabilities:
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- capability1: somecapbility
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interfaces:
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- create
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- start
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- stop
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- install
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- delete
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tosca_nodes_Compute:
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derived_from: tosca_nodes_Root
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properties:
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- num_cpus
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- disk_size
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- mem_size
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- os_arch
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- os_type
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- os_version
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- ip_address
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requirements:
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- host: none
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- database: none
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capabilities:
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container:
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type: Container
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containee_types: [tosca_nodes_SoftwareComponent]
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tosca_nodes_SoftwareComponent:
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derived_from: tosca_nodes_Root
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requirements:
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- host: tosca.nodes.Compute
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capabilities:
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containee:
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type: Containee
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container_types: [tosca.nodes.Compute]
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tosca.nodes.MySQL:
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derived_from: tosca_nodes_SoftwareComponent
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properties:
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- db_user
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- db_pwd
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- db_root_pwd
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from tosca.nodetemplates.schema import Schema
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from tosca.nodetemplates.constraints import Constraint
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class Property(object):
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def __init__(self, name, nodetype, value):
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self.name = name
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self.nodetype = nodetype
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self.value = value
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def is_required(self):
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return Schema(self.nodetype).is_required(self.name)
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def get_name(self):
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return self.name
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def validate(self):
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self.validate_data_type()
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self.validate_constraints()
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def validate_data_type(self):
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data_type = Schema(self.nodetype).get_type(self.name)
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if data_type == Schema.STRING:
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return Constraint.validate_string(self.value)
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elif data_type == Schema.INTEGER:
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return Constraint.validate_integer(self.value)
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elif data_type == Schema.NUMBER:
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return Constraint.validate_number(self.value)
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def validate_constraints(self):
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constraints = Schema(self.nodetype).get_constraints(self.name)
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if constraints:
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for constraint in constraints:
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Constraint(self.name, self.value, constraint).validate()
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pass
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from rootnodetype import RootRelationshipType
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class RelatonshipType(RootRelationshipType):
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def __init__(self, relatointype):
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super(RelatonshipType, self).__init__()
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self.nodetype = relatointype
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from yaml_loader import Loader
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import os
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nodetype_def_file = os.path.dirname(os.path.abspath(__file__)) + os.sep + "nodetypesdef.yaml"
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nodetype_def = Loader(nodetype_def_file).load()
|
||||
|
||||
class RootNodeType(object):
|
||||
def __init__(self):
|
||||
self.nodetypes = self._set_nodetypes()
|
||||
|
||||
'''set a list of node names from the nodetype definition'''
|
||||
def _set_nodetypes(self):
|
||||
nodetypes = []
|
||||
if isinstance(nodetype_def, dict):
|
||||
for key in nodetype_def.iterkeys():
|
||||
nodetypes.append(key)
|
||||
return nodetypes
|
||||
|
||||
def get_nodetype(self, nodetype=None):
|
||||
rtype = {}
|
||||
if nodetype == None:
|
||||
nodetype = self.nodetype
|
||||
ntype = nodetype
|
||||
ntype = ntype.replace(".", "_")
|
||||
if ntype in self.nodetypes:
|
||||
rtype = nodetype_def[ntype]
|
||||
return rtype
|
||||
|
||||
class RootRelationshipType(object):
|
||||
def __init__(self):
|
||||
pass
|
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|
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|
|||
from yaml_loader import Loader
|
||||
import os
|
||||
|
||||
schema_file = os.path.dirname(os.path.abspath(__file__)) + os.sep + "nodetypeschema.yaml"
|
||||
schema = Loader(schema_file).load()
|
||||
|
||||
class Schema(object):
|
||||
|
||||
TYPES = (
|
||||
INTEGER,
|
||||
STRING, NUMBER, BOOLEAN,
|
||||
LIST
|
||||
) = (
|
||||
'integer',
|
||||
'string', 'number', 'boolean',
|
||||
'list'
|
||||
)
|
||||
|
||||
KEYS = (
|
||||
TYPE, DESCRIPTION, DEFAULT, CONSTRAINTS,
|
||||
) = (
|
||||
'type', 'description', 'default', 'constraints'
|
||||
)
|
||||
|
||||
def __init__(self, nodetype):
|
||||
self.nodetype = nodetype
|
||||
self.nodes = self._set_nodes()
|
||||
|
||||
'''set a list of node names from the schema'''
|
||||
def _set_nodes(self):
|
||||
sections = []
|
||||
if isinstance(schema, dict):
|
||||
for key in schema.iterkeys():
|
||||
sections.append(key)
|
||||
return sections
|
||||
|
||||
def _get_section(self, section_name):
|
||||
section = {}
|
||||
if section_name in self.nodes:
|
||||
return schema[section_name]
|
||||
return section
|
||||
|
||||
''' return true if property is a required for a given node '''
|
||||
def is_required(self, property_name):
|
||||
return property_name in self.required()
|
||||
|
||||
''' get schemata for a given node type'''
|
||||
def get_schemata(self):
|
||||
ntype = self.nodetype
|
||||
ntype = ntype.replace(".", "_")
|
||||
return self._get_section(ntype)
|
||||
|
||||
''' get schema for a given property'''
|
||||
def get_schema(self, property_name):
|
||||
schema = {}
|
||||
schemata = self.get_schemata()
|
||||
for prop_key, prop_vale in schemata.iteritems():
|
||||
if prop_key == property_name:
|
||||
for attr, value in prop_vale.iteritems():
|
||||
schema[attr] = value
|
||||
return schema
|
||||
|
||||
def get_type(self, property_name):
|
||||
return self.get_schema(property_name)['type']
|
||||
|
||||
def get_constraints(self, property_name):
|
||||
s = self.get_schema(property_name)
|
||||
if 'constraints' in s:
|
||||
s['constraints']
|
||||
|
||||
def get_description(self, property_name):
|
||||
return self.get_schema(property_name)['description']
|
||||
|
||||
def get_greater_or_equal(self, property_name):
|
||||
pass
|
||||
|
||||
def get_equal(self, property_name):
|
||||
pass
|
||||
|
||||
''' list all the required properties for a given nodetype '''
|
||||
def required(self):
|
||||
required = []
|
||||
schemata = self.get_schemata()
|
||||
for prop_key, prop_vale in schemata.iteritems():
|
||||
for attr, value in prop_vale.iteritems():
|
||||
if attr == 'required' and value:
|
||||
required.append(prop_key)
|
||||
return required
|
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|
@ -0,0 +1,4 @@
|
|||
|
||||
class Outputs(object):
|
||||
def __init__(self):
|
||||
pass
|
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|
@ -0,0 +1,30 @@
|
|||
tosca_definitions_version: tosca_simple_1_0
|
||||
|
||||
description: >
|
||||
TOSCA simple profile that just defines a single compute instance. Note, this example does not include inputs values.
|
||||
|
||||
inputs:
|
||||
cpus:
|
||||
type: integer
|
||||
description: cpu
|
||||
constraints:
|
||||
- valid_values: [ 1, 2, 4, 8 ]
|
||||
|
||||
node_templates:
|
||||
my_server:
|
||||
type: tosca.nodes.Compute
|
||||
properties:
|
||||
# compute properties (flavor)
|
||||
disk_size: 10
|
||||
num_cpus: { get_input: cpus }
|
||||
mem_size: 4096
|
||||
# host image properties
|
||||
os_arch: x86_64
|
||||
os_type: Linux
|
||||
os_distribution: Ubuntu
|
||||
os_version: 12
|
||||
|
||||
outputs:
|
||||
instance_ip:
|
||||
description: The IP address of the deployed instance.
|
||||
value: { get_property: [my_server, ip_address ] }
|
|
@ -0,0 +1,24 @@
|
|||
SECTIONS = (VERSION, DESCRIPTION, INPUTS,
|
||||
NODE_TEMPLATES, OUTPUTS) = \
|
||||
('tosca_definitions_version', 'description', 'inputs',
|
||||
'node_templates', 'outputs')
|
||||
|
||||
class Tosca(object):
|
||||
|
||||
def __init__(self, sourcedata):
|
||||
self.sourcedata = sourcedata
|
||||
|
||||
def get_version(self):
|
||||
return self.sourcedata[VERSION]
|
||||
|
||||
def get_description(self):
|
||||
return self.sourcedata[DESCRIPTION]
|
||||
|
||||
def get_inputs(self):
|
||||
return self.sourcedata[INPUTS]
|
||||
|
||||
def get_nodetemplates(self):
|
||||
return self.sourcedata[NODE_TEMPLATES]
|
||||
|
||||
def get_outputs(self):
|
||||
return self.sourcedata[OUTPUTS]
|
Binary file not shown.
|
@ -0,0 +1,34 @@
|
|||
import yaml
|
||||
|
||||
HEAT_VERSIONS = '2013-05-23'
|
||||
|
||||
if hasattr(yaml, 'CSafeDumper'):
|
||||
yaml_dumper = yaml.CSafeDumper
|
||||
else:
|
||||
yaml_dumper = yaml.SafeDumper
|
||||
|
||||
yaml_tpl = {}
|
||||
|
||||
class TOSCATranslator(object):
|
||||
def __init__(self, tosca):
|
||||
super(TOSCATranslator, self).__init__()
|
||||
self.tosca = tosca
|
||||
|
||||
def translate(self):
|
||||
self._translate_version()
|
||||
self._translate_inputs()
|
||||
self._translate_node_templates()
|
||||
self._translate_outputs()
|
||||
|
||||
def _translate_version(self):
|
||||
pass
|
||||
|
||||
def _translate_inputs(self):
|
||||
pass
|
||||
|
||||
def _translate_node_templates(self):
|
||||
pass
|
||||
|
||||
def _translate_outputs(self):
|
||||
pass
|
||||
|
Binary file not shown.
|
@ -0,0 +1,20 @@
|
|||
from tosca.inputs import Input
|
||||
from tosca.nodetemplates.node_template import NodeTemplate
|
||||
|
||||
class ToscaValidator():
|
||||
def __init__(self, Tosca):
|
||||
self.inputs = Tosca.get_inputs()
|
||||
self.nodetemplates = Tosca.get_nodetemplates()
|
||||
self.tosca = Tosca
|
||||
|
||||
def validate(self):
|
||||
#validate inputs
|
||||
for name, attrs in self.inputs.iteritems():
|
||||
if not isinstance(attrs, dict):
|
||||
print ("The input %s has no attributes", name)
|
||||
Input(name, attrs).validate()
|
||||
|
||||
#validate node templates
|
||||
for nodetemplate, value in self.nodetemplates.iteritems():
|
||||
NodeTemplate(nodetemplate, value, self.tosca).validate()
|
||||
|
Binary file not shown.
|
@ -0,0 +1,26 @@
|
|||
import numbers
|
||||
|
||||
def validate_integer(value):
|
||||
if not isinstance(value, (int, long)):
|
||||
raise TypeError('value is not an integer for %s' %value)
|
||||
return validate_number(value)
|
||||
|
||||
def validate_number(value):
|
||||
return str_to_num(value)
|
||||
|
||||
def validate_string(value):
|
||||
if not isinstance(value, basestring):
|
||||
raise ValueError(_('Value must be a string'))
|
||||
return value
|
||||
|
||||
def validate_list(self, value):
|
||||
pass
|
||||
|
||||
def str_to_num(value):
|
||||
'''Convert a string representation of a number into a numeric type.'''
|
||||
if isinstance(value, numbers.Number):
|
||||
return value
|
||||
try:
|
||||
return int(value)
|
||||
except ValueError:
|
||||
return float(value)
|
|
@ -0,0 +1,20 @@
|
|||
import yaml
|
||||
|
||||
if hasattr(yaml, 'CSafeLoader'):
|
||||
yaml_loader = yaml.CSafeLoader
|
||||
else:
|
||||
yaml_loader = yaml.SafeLoader
|
||||
|
||||
|
||||
class Loader(object):
|
||||
def __init__(self, file_name):
|
||||
self.file_name = file_name
|
||||
|
||||
def load(self):
|
||||
f = open(self.file_name, 'r')
|
||||
profile = f.read() # string
|
||||
try:
|
||||
doc = yaml.load(profile, Loader=yaml_loader)
|
||||
except yaml.YAMLError as error:
|
||||
raise ValueError(error)
|
||||
return doc
|
Binary file not shown.
Loading…
Reference in New Issue