Add required definition in class of Input.

As a template designer;
I want to know if the parameters is missed when deploy a template, but
currently there is not validation about the required parameters;
So i add property in class of Input, and validate the require parameter.
Note: the patch will submit to Openstack community too.

JIRA:PARSER-88

Change-Id: I5763a18da4037b0f81a55b8c8d83414e685b03d2
Signed-off-by: shangxdy <shang.xiaodong@zte.com.cn>

1 files changed, 8 insertions, 1 deletions

diff --git a/tosca2heat/tosca-parser/toscaparser/topology_template.py b/tosca2heat/tosca-parser/toscaparser/topology_template.py
index fe05979..100a06b 100644
--- a/tosca2heat/tosca-parser/toscaparser/topology_template.py
+++ b/tosca2heat/tosca-parser/toscaparser/topology_template.py
@@ -26,7 +26,6 @@ from toscaparser.substitution_mappings import SubstitutionMappings
 from toscaparser.tpl_relationship_graph import ToscaGraph
 from toscaparser.utils.gettextutils import _
 
-
 # Topology template key names
 SECTIONS = (DESCRIPTION, INPUTS, NODE_TEMPLATES,
             RELATIONSHIP_TEMPLATES, OUTPUTS, GROUPS,
@@ -73,6 +72,14 @@ class TopologyTemplate(object):
                 default = input.default
                 if default:
                     input.validate(default)
+            if (self.parsed_params and input.name not in self.parsed_params
+                or self.parsed_params is None) and input.required \
+                and input.default is None:
+                exception.ExceptionCollector.appendException(
+                    exception.MissingRequiredParameterError(
+                        what='Template',
+                        input_name=input.name))
+
             inputs.append(input)
         return inputs