Merge pull request #233 from pigmej/vr_lists

List input value support in VR

solar/solar/core/resource/virtual_resource.py

@@ -1,4 +1,4 @@
-# -*- coding: UTF-8 -*-
+# -*- coding: utf-8 -*-
 #    Copyright 2015 Mirantis, Inc.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -59,7 +59,12 @@ def create_resource(name, base_path, args=None, tags=None, virtual_resource=None
         base_path = base_path.directory
 
     # List args init with empty list. Elements will be added later
-    args = {key: (value if not isinstance(value, list) else []) for key, value in args.items()}
+    def _filter(value):
+        if not isinstance(value, list):
+            return value
+        return filter(lambda res: not is_connection(res), value)
+
+    args = {key: _filter(value) for key, value in args.items()}
     r = Resource(
         name, base_path, args=args, tags=tags, virtual_resource=virtual_resource
     )
@@ -212,6 +217,8 @@ def parse_events(template_events):
     return parsed_events
 
 
+
+
 def parse_inputs(args):
     connections = []
     assignments = {}
@@ -221,7 +228,7 @@ def parse_inputs(args):
             connections.extend(c)
             assignments.update(a)
         else:
-            if isinstance(arg, basestring) and '::' in arg:
+            if is_connection(arg):
                 c = parse_connection(r_input, arg)
                 connections.append(c)
             else:
@@ -233,15 +240,23 @@ def parse_list_input(r_input, args):
     connections = []
     assignments = {}
     for arg in args:
-        if isinstance(arg, basestring) and '::' in arg:
+        if is_connection(arg):
             c = parse_connection(r_input, arg)
             connections.append(c)
         else:
-            # Not supported yet
-            raise Exception('Only connections are supported in lists')
+            try:
+                assignments[r_input].append(arg)
+            except KeyError:
+                assignments[r_input] = [arg]
     return connections, assignments
 
 
+def is_connection(arg):
+    if isinstance(arg, basestring) and '::' in arg:
+        return True
+    return False
+
+
 def parse_connection(child_input, element):
     parent, parent_input = element.split('::', 1)
     try:

solar/solar/test/resource_fixtures/resource_with_list.yaml.tmpl

@@ -0,0 +1,9 @@
+id: simple_resource_with_list
+resources:
+  - id: res1
+    from: {resource_path}
+    values:
+      ip: '10.0.0.3'
+      servers:
+        - 1
+        - 2

solar/solar/test/test_virtual_resource.py

@@ -73,6 +73,22 @@ def test_create_virtual_resource(tmpdir):
     resources = vr.create('nodes', str(vr_file))
     assert len(resources) == 2
 
+def test_create_virtual_resource_with_list(tmpdir):
+    base_path = os.path.join(
+        os.path.dirname(os.path.realpath(__file__)),
+        'resource_fixtures')
+    vr_tmpl_path = os.path.join(base_path, 'resource_with_list.yaml.tmpl')
+    base_resource_path = os.path.join(base_path, 'base_service')
+    with open(vr_tmpl_path) as f:
+        vr_data = f.read().format(resource_path=base_resource_path)
+    vr_file = tmpdir.join('base.yaml')
+    vr_file.write(vr_data)
+    resources = vr.create('base', str(vr_file))
+    assert len(resources) == 1
+    res = resources[0]
+    assert res.args['servers'] == [1, 2]
+
+
 def test_update(tmpdir):
     # XXX: make helper for it
     base_path = os.path.join(
@@ -120,6 +136,17 @@ def test_add_connections(mocker, resources):
     vr.update_inputs('service1', args)
     assert mocked_signals.connect.call_count == 3
 
+
+def test_add_list_values(mocker, resources):
+    mocked_signals = mocker.patch('solar.core.resource.resource.signals')
+    args = {'ip': 'node1::ip',
+            'servers': ['server1', 'server2'],
+            'alias': 'ser1'
+           }
+    vr.update_inputs('service1', args)
+    assert mocked_signals.connect.call_count == 1
+
+
 def test_parse_connection():
     correct_connection = {'child_input': 'ip',
      'parent' : 'node1',