Merge "Add ALL-IN operator to extra spec ops"

doc/source/devref/filter_scheduler.rst

@@ -61,9 +61,10 @@ There are some standard filter classes to use (:mod:`nova.scheduler.filters`):
   * s<= (less than or equal to as a string)
   * s< (less than as a string)
   * <in> (substring)
+  * <all-in> (all elements contained in collection)
   * <or> (find one of these)
 
-  Examples are: ">= 5", "s== 2.1.0", "<in> gcc", and "<or> fpu <or> gpu"
+  Examples are: ">= 5", "s== 2.1.0", "<in> gcc", "<all-in> aes mmx", and "<or> fpu <or> gpu"
 
 * |AggregateInstanceExtraSpecsFilter| - checks that the aggregate metadata
   satisfies any extra specifications associated with the instance type (that

nova/scheduler/filters/extra_specs_ops.py

@@ -16,12 +16,13 @@
 import operator
 
 # 1. The following operations are supported:
-#   =, s==, s!=, s>=, s>, s<=, s<, <in>, <or>, ==, !=, >=, <=
+#   =, s==, s!=, s>=, s>, s<=, s<, <in>, <all-in>, <or>, ==, !=, >=, <=
 # 2. Note that <or> is handled in a different way below.
 # 3. If the first word in the extra_specs is not one of the operators,
 #   it is ignored.
 _op_methods = {'=': lambda x, y: float(x) >= float(y),
                '<in>': lambda x, y: y in x,
+               '<all-in>': lambda x, y: all(val in x for val in y),
                '==': lambda x, y: float(x) == float(y),
                '!=': lambda x, y: float(x) != float(y),
                '>=': lambda x, y: float(x) >= float(y),
@@ -59,7 +60,8 @@ def match(value, req):
                 break
         return False
 
-    if words and method(value, words[0]):
-        return True
-
+    if words:
+        if op == '<all-in>':  # requires a list not a string
+            return method(value, words)
+        return method(value, words[0])
     return False

nova/tests/unit/scheduler/filters/test_extra_specs_ops.py

@@ -198,3 +198,38 @@ class ExtraSpecsOpsTestCase(test.NoDBTestCase):
             value='2',
             req='>= 3',
             matches=False)
+
+    def test_extra_specs_matches_all_with_op_allin(self):
+        values = ['aes', 'mmx', 'aux']
+        self._do_extra_specs_ops_test(
+            value=str(values),
+            req='<all-in> aes mmx',
+            matches=True)
+
+    def test_extra_specs_matches_one_with_op_allin(self):
+        values = ['aes', 'mmx', 'aux']
+        self._do_extra_specs_ops_test(
+            value=str(values),
+            req='<all-in> mmx',
+            matches=True)
+
+    def test_extra_specs_fails_with_op_allin(self):
+        values = ['aes', 'mmx', 'aux']
+        self._do_extra_specs_ops_test(
+            value=str(values),
+            req='<all-in>  txt',
+            matches=False)
+
+    def test_extra_specs_fails_all_with_op_allin(self):
+        values = ['aes', 'mmx', 'aux']
+        self._do_extra_specs_ops_test(
+            value=str(values),
+            req='<all-in> txt 3dnow',
+            matches=False)
+
+    def test_extra_specs_fails_match_one_with_op_allin(self):
+        values = ['aes', 'mmx', 'aux']
+        self._do_extra_specs_ops_test(
+            value=str(values),
+            req='<all-in> txt aes',
+            matches=False)