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>

3 files changed, 14 insertions, 4 deletions

diff --git a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/PdpSimulatorActivator.java b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/PdpSimulatorActivator.java
index 2c3f8f79f..7c52163ac 100644
--- a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/PdpSimulatorActivator.java
+++ b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/PdpSimulatorActivator.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
- *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -55,7 +55,12 @@ public class PdpSimulatorActivator {
     private List<TopicSink> topicSinks;// topics to which pdp sends pdp status
     private List<TopicSource> topicSources; // topics to which pdp listens to for messages from pap.
     private static final String[] MSG_TYPE_NAMES = { "messageName" };
-    private static final Random RANDOM = new Random();
+
+    /*
+     * This simulator is only used for testing. Consequently, it is safe to use a simple
+     * random number generator, thus the sonar is disabled.
+     */
+    private static final Random RANDOM = new Random();      // NOSONAR
 
     /**
      * Listens for messages on the topic, decodes them into a message, and then dispatches them.
diff --git a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorConstants.java b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorConstants.java
index 2bec22af3..491664498 100644
--- a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorConstants.java
+++ b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorConstants.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
+ *  Modifications Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +21,8 @@
 
 package org.onap.policy.models.sim.pdp;
 
+import static org.assertj.core.api.Assertions.assertThatCode;
+
 import org.junit.Test;
 import org.powermock.reflect.Whitebox;
 
@@ -32,6 +35,6 @@ public class TestPdpSimulatorConstants {
     @Test
     public void test() throws Exception {
         // verify that constructor does not throw an exception
-        Whitebox.invokeConstructor(PdpSimulatorConstants.class);
+        assertThatCode(() -> Whitebox.invokeConstructor(PdpSimulatorConstants.class)).doesNotThrowAnyException();
     }
 }
diff --git a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorMain.java b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorMain.java
index 4b7944436..de0181b70 100644
--- a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorMain.java
+++ b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/TestPdpSimulatorMain.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
+ *  Modifications Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +21,7 @@
 
 package org.onap.policy.models.sim.pdp;
 
+import static org.assertj.core.api.Assertions.assertThatCode;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
@@ -92,7 +94,7 @@ public class TestPdpSimulatorMain {
     @Test
     public void testPdpSimulator_Help() {
         final String[] pdpSimulatorConfigParameters = { "-h" };
-        PdpSimulatorMain.main(pdpSimulatorConfigParameters);
+        assertThatCode(() -> PdpSimulatorMain.main(pdpSimulatorConfigParameters)).doesNotThrowAnyException();
     }
 
     @Test