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-rw-r--r--nfvparser/toscaparser/functions.py57
1 files changed, 44 insertions, 13 deletions
diff --git a/nfvparser/toscaparser/functions.py b/nfvparser/toscaparser/functions.py
index d498229..b64f1bc 100644
--- a/nfvparser/toscaparser/functions.py
+++ b/nfvparser/toscaparser/functions.py
@@ -158,6 +158,8 @@ class GetAttribute(Function):
# then check the req or caps
attr = self._find_req_or_cap_attribute(self.args[1],
self.args[2])
+ if not attr:
+ return
value_type = attr.schema['type']
if len(self.args) > index:
@@ -236,8 +238,8 @@ class GetAttribute(Function):
target_node = self._find_node_template(target_name)
target_type = target_node.type_definition
for capability in target_type.get_capabilities_objects():
- if capability.type in \
- hosted_on_rel['valid_target_types']:
+ if capability.inherits_from(
+ hosted_on_rel['valid_target_types']):
if self._attribute_exists_in_type(target_type):
return target_node
return self._find_host_containing_attribute(
@@ -412,6 +414,8 @@ class GetProperty(Function):
def _find_req_or_cap_property(self, req_or_cap, property_name):
node_tpl = self._find_node_template(self.args[0])
+ if node_tpl is None:
+ return None
# Find property in node template's requirements
for r in node_tpl.requirements:
for req, node_name in r.items():
@@ -429,7 +433,8 @@ class GetProperty(Function):
def _get_capability_property(self,
node_template,
capability_name,
- property_name):
+ property_name,
+ throw_errors=True):
"""Gets a node template capability property."""
caps = node_template.get_capabilities()
if caps and capability_name in caps.keys():
@@ -438,7 +443,7 @@ class GetProperty(Function):
props = cap.get_properties()
if props and property_name in props.keys():
property = props[property_name].value
- if not property:
+ if property is None and throw_errors:
ExceptionCollector.appendException(
KeyError(_('Property "%(prop)s" was not found in '
'capability "%(cap)s" of node template '
@@ -448,12 +453,15 @@ class GetProperty(Function):
'ntpl1': node_template.name,
'ntpl2': self.context.name}))
return property
- msg = _('Requirement/Capability "{0}" referenced from node template '
- '"{1}" was not found in node template "{2}".').format(
- capability_name,
- self.context.name,
- node_template.name)
- ExceptionCollector.appendException(KeyError(msg))
+ if throw_errors:
+ msg = _('Requirement/Capability "{0}" referenced from '
+ 'node template "{1}" was not found in node template'
+ ' "{2}".').format(capability_name,
+ self.context.name,
+ node_template.name)
+ ExceptionCollector.appendException(KeyError(msg))
+ else:
+ return None
def _find_property(self, property_name):
node_tpl = self._find_node_template(self.args[0])
@@ -475,7 +483,18 @@ class GetProperty(Function):
return self.context
# enable the HOST value in the function
if node_template_name == HOST:
- return self._find_host_containing_property()
+ node = self._find_host_containing_property()
+ if node is None:
+ ExceptionCollector.appendException(
+ KeyError(_(
+ "Property '{0}' not found in capability/requirement"
+ " '{1}' referenced from node template {2}").
+ format(self.args[2],
+ self.args[1],
+ self.context.name)))
+ return None
+ else:
+ return node
if node_template_name == TARGET:
if not isinstance(self.context.type_definition, RelationshipType):
ExceptionCollector.appendException(
@@ -498,7 +517,9 @@ class GetProperty(Function):
ExceptionCollector.appendException(
KeyError(_(
'Node template "{0}" was not found.'
- ).format(node_template_name)))
+ ' referenced from node template {1}'
+ ).format(node_template_name,
+ self.context.name)))
def _get_index_value(self, value, index):
if isinstance(value, list):
@@ -555,9 +576,19 @@ class GetProperty(Function):
target_node = self._find_node_template(target_name)
target_type = target_node.type_definition
for capability in target_type.get_capabilities_objects():
- if capability.type in hosted_on_rel['valid_target_types']:
+ if capability.inherits_from(
+ hosted_on_rel['valid_target_types']):
if self._property_exists_in_type(target_type):
return target_node
+ # If requirement was not found, look in node
+ # template's capabilities
+ if (len(self.args) > 2 and
+ self._get_capability_property(target_node,
+ self.args[1],
+ self.args[2],
+ False)
+ is not None):
+ return target_node
return self._find_host_containing_property(
target_name)
return None