Github user tliron commented on a diff in the pull request:
https://github.com/apache/incubator-ariatosca/pull/143#discussion_r126353859
--- Diff: aria/modeling/service_template.py ---
@@ -690,19 +666,104 @@ def dump(self):
console.puts(context.style.meta(self.description))
with context.style.indent:
console.puts('Type:
{0}'.format(context.style.type(self.type.name)))
- console.puts('Instances: {0:d} ({1:d}{2})'.format(
- self.default_instances,
- self.min_instances,
- ' to {0:d}'.format(self.max_instances)
- if self.max_instances is not None
- else ' or more'))
utils.dump_dict_values(self.properties, 'Properties')
utils.dump_dict_values(self.attributes, 'Attributes')
utils.dump_interfaces(self.interface_templates)
utils.dump_dict_values(self.artifact_templates, 'Artifact
templates')
utils.dump_dict_values(self.capability_templates, 'Capability
templates')
utils.dump_list_values(self.requirement_templates,
'Requirement templates')
+ @property
+ def next_index(self):
+ """
+ Next available node index.
+
+ :returns: node index
+ :rtype: int
+ """
+
+ max_index = 0
+ if self.nodes:
+ max_index = max(int(n.name.rsplit('_', 1)[-1]) for n in
self.nodes)
+ return max_index + 1
+
+ @property
+ def next_name(self):
+ """
+ Next available node name.
+
+ :returns: node name
+ :rtype: basestring
+ """
+
+ return '{name}_{index}'.format(name=self.name,
index=self.next_index)
+
+ @property
+ def scaling(self):
+ scaling = {}
+
+ def extract_property(properties, name):
+ if name in scaling:
+ return
+ prop = properties.get(name)
+ if (prop is not None) and (prop.type_name == 'integer') and
(prop.value is not None):
+ scaling[name] = prop.value
+
+ def extract_properties(properties):
+ extract_property(properties, 'min_instances')
+ extract_property(properties, 'max_instances')
+ extract_property(properties, 'default_instances')
+
+ def default_property(name, value):
+ if name not in scaling:
+ scaling[name] = value
+
+ # From our scaling capabilities
+ for capability_template in self.capability_templates.itervalues():
+ if capability_template.type.role == 'scaling':
+ extract_properties(capability_template.properties)
+
+ # From service scaling policies
+ for policy_template in
self.service_template.policy_templates.itervalues():
+ if policy_template.type.role == 'scaling':
+ if policy_template.is_for_node_template(self.name):
+ extract_properties(policy_template.properties)
+
+ # Defaults
+ default_property('min_instances', 0)
+ default_property('max_instances', 1)
+ default_property('default_instances', 1)
+
+ # Validate
+ # pylint: disable=too-many-boolean-expressions
+ if (scaling['min_instances'] < 0) or \
--- End diff --
I see no difference in readability between this and using `or`, seems to me
just to be bowing to PyLint's weirdness... but I don't mind switching.
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