Add modules for AODH

Change-Id: Ifa9fb205f3043ea99b8153fd67184d13da84ca0f
Related-Issue: PROD-25008 (PROD:25008)
diff --git a/_modules/aodhv2/arg_converter.py b/_modules/aodhv2/arg_converter.py
new file mode 100644
index 0000000..ee6937b
--- /dev/null
+++ b/_modules/aodhv2/arg_converter.py
@@ -0,0 +1,47 @@
+import uuid
+from aodhv2 import common
+from aodhv2 import queries
+
+
+class CheckId(object):
+    def check_id(self, val):
+        try:
+            return str(uuid.UUID(val)).replace('-', '') == val
+        except (TypeError, ValueError, AttributeError):
+            return False
+
+
+resource_lists = {
+    'alarm': queries.query_post,
+}
+
+
+def get_by_name_or_uuid_multiple(resource_arg_name_pairs):
+    def wrap(func):
+        def wrapped_f(*args, **kwargs):
+            results = []
+            args_start = 0
+            for index, (resource, arg_name) in enumerate(
+                    resource_arg_name_pairs):
+                if arg_name in kwargs:
+                    ref = kwargs.pop(arg_name, None)
+                else:
+                    ref = args[index]
+                    args_start += 1
+                cloud_name = kwargs['cloud_name']
+                checker = CheckId()
+                if checker.check_id(ref):
+                    results.append(ref)
+                else:
+                    # Then we have name not uuid
+                    resp = resource_lists[resource](
+                        name=ref, cloud_name=cloud_name)
+                    if len(resp) == 0:
+                        raise common.ResourceNotFound(resource, ref)
+                    elif len(resp) > 1:
+                        raise common.MultipleResourcesFound(resource, ref)
+                    results.append(resp[0]['alarm_id'])
+                results.extend(args[args_start:])
+            return func(*results, **kwargs)
+        return wrapped_f
+    return wrap