Address sonar issues in models

Addressed the following sonar issues:
- use RE2 instead of java.util Pattern for "+" and "*"
- don't use deprecated methods
  - for Date(long), sonar appeared not to parse the argument's
    type correctly.  Modified the code slightly to make sonar happy
- duplicate blocks of code
- either log or throw
- missing assert in junit
  - for SDNR & VFC, eliminated threads, as they are unnecessary
- duplicate code block in different branches
- useless assignments
- redeclaring abstract methods
- cyclomatic complexity
  - used lombok in some cases (e.g., EqualsAndHashCode)
- assert argument order
  - actually deleted ControlLoopTargetType, because it is not needed
    and sonar complains regardless of which order is used
- add private constructor to utility classes
- use StandardCharsets instead of literals

Also:
- added logback-test.xml to SO to eliminate the voluminous output
  from the junit test

Issue-ID: POLICY-2305
Change-Id: I586c331781bedbd54a115a71847d04d293689445
Signed-off-by: Jim Hahn <jrh3@att.com>

2 files changed, 5 insertions, 39 deletions

diff --git a/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/ControlLoopTargetType.java b/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/ControlLoopTargetType.java
index b79140a12..55c133306 100644
--- a/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/ControlLoopTargetType.java
+++ b/models-interactions/model-impl/events/src/main/java/org/onap/policy/controlloop/ControlLoopTargetType.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * controlloop
  * ================================================================================
- * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2019 Nordix Foundation.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -27,4 +27,8 @@ public class ControlLoopTargetType {
     public static final String VFC = "VFC";
     public static final String VNF = "VNF";
     public static final String PNF = "PNF";
+
+    private ControlLoopTargetType() {
+        // do nothing
+    }
 }
diff --git a/models-interactions/model-impl/events/src/test/java/org/onap/policy/controlloop/ControlLoopTargetTypeTest.java b/models-interactions/model-impl/events/src/test/java/org/onap/policy/controlloop/ControlLoopTargetTypeTest.java
deleted file mode 100644
index dcb5d1772..000000000
--- a/models-interactions/model-impl/events/src/test/java/org/onap/policy/controlloop/ControlLoopTargetTypeTest.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * controlloop
- * ================================================================================
- * Copyright (C) 2018-2019 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2019 Nordix Foundation.
- * ================================================================================
- * 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=========================================================
- */
-
-package org.onap.policy.controlloop;
-
-import static org.junit.Assert.assertEquals;
-
-import org.junit.Test;
-
-public class ControlLoopTargetTypeTest {
-
-    @Test
-    public void test() {
-        assertEquals(ControlLoopTargetType.VM, "VM");
-        assertEquals(ControlLoopTargetType.VF, "VF");
-        assertEquals(ControlLoopTargetType.VFC, "VFC");
-        assertEquals(ControlLoopTargetType.VNF, "VNF");
-        assertEquals(ControlLoopTargetType.PNF, "PNF");
-    }
-}