Add support for common rules across types

Refactor the Rule Driven Validator implementation for loading the Groovy
rules. Firstly, support multiple top-level folders. Secondly, include
each top-level folder in the set of paths to search for *.groovy files.

Pull a common rule up to the top-level to remove the duplication.

Add tests to exercise the exception handling code.

Change-Id: Ib70fe03ab5b1f2f8c1711760236b07850aaaa398
Issue-ID: AAI-2155
Signed-off-by: mark.j.leonard <mark.j.leonard@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/src/test/resources/rule-driven-validator/missing_oxm/dummy_event_type/oxm_missing.groovy b/src/test/resources/rule-driven-validator/missing_oxm/dummy_event_type/oxm_missing.groovy
new file mode 100644
index 0000000..1ec2a01
--- /dev/null
+++ b/src/test/resources/rule-driven-validator/missing_oxm/dummy_event_type/oxm_missing.groovy
@@ -0,0 +1,39 @@
+/*
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright (c) 2018-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (c) 2018-2019 European Software Marketing Ltd.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+entity {
+    type 'unknown_type'
+    validation {
+        useRule {
+            name 'dummy'
+            attributes 'dummy'
+        }
+    }
+}
+
+rule {
+    name        'dummy'
+    category    'INVALID_VALUE'
+    description 'for test purposes'
+    errorText   ''
+    severity    'MINOR'
+    validate    'return false'
+}