Remove GroupValidationResult

Removed GroupValidationResult, replacing it with BeanValidationResult.
Modified the ParameterGroup subclasses to use BeanValidator, adding
annotations where needed to trigger the validations that had been
automatically performed by GroupValidationResult.

Issue-ID: POLICY-2059
Change-Id: I245e4a647fcbb718faa63a7543f9f81c85da958c
Signed-off-by: Jim Hahn <jrh3@att.com>

11 files changed, 53 insertions, 79 deletions

diff --git a/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterGroup.java b/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterGroup.java
index 9719ae93f..af5e4fd46 100644
--- a/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterGroup.java
+++ b/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterGroup.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
- *  Modifications Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2019-2021 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.
@@ -26,6 +26,7 @@ import org.onap.policy.common.parameters.ParameterGroupImpl;
 import org.onap.policy.common.parameters.annotations.Min;
 import org.onap.policy.common.parameters.annotations.NotBlank;
 import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.common.parameters.annotations.Valid;
 
 /**
  * Class to hold all parameters needed for the DMaaP simulator component.
@@ -34,7 +35,7 @@ import org.onap.policy.common.parameters.annotations.NotNull;
 @NotBlank
 @Getter
 public class DmaapSimParameterGroup extends ParameterGroupImpl {
-    private RestServerParameters restServerParameters;
+    private @Valid RestServerParameters restServerParameters;
 
     /**
      * Frequency, in seconds, with which to sweep the topics of idle consumers. On each
diff --git a/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterHandler.java b/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterHandler.java
index 2ade27d83..4485defaa 100644
--- a/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterHandler.java
+++ b/models-sim/models-sim-dmaap/src/main/java/org/onap/policy/models/sim/dmaap/parameters/DmaapSimParameterHandler.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
- *  Modifications Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2019-2021 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.
@@ -22,7 +22,7 @@
 package org.onap.policy.models.sim.dmaap.parameters;
 
 import java.io.File;
-import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.common.utils.coder.Coder;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
@@ -70,7 +70,7 @@ public class DmaapSimParameterHandler {
         }
 
         // validate the parameters
-        final GroupValidationResult validationResult = dmaapSimParameterGroup.validate();
+        final ValidationResult validationResult = dmaapSimParameterGroup.validate();
         if (!validationResult.isValid()) {
             String returnMessage =
                     "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
diff --git a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterGroup.java b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterGroup.java
index 1b4df7bc6..677d8a7d5 100644
--- a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterGroup.java
+++ b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterGroup.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.
@@ -25,6 +26,7 @@ import org.onap.policy.common.endpoints.parameters.TopicParameterGroup;
 import org.onap.policy.common.parameters.ParameterGroupImpl;
 import org.onap.policy.common.parameters.annotations.NotBlank;
 import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.common.parameters.annotations.Valid;
 
 /**
  * Class to hold all parameters needed for pdp simulator component.
@@ -35,7 +37,9 @@ import org.onap.policy.common.parameters.annotations.NotNull;
 @NotBlank
 @Getter
 public class PdpSimulatorParameterGroup extends ParameterGroupImpl {
+    @Valid
     private PdpStatusParameters pdpStatusParameters;
+    @Valid
     private TopicParameterGroup topicParameterGroup;
 
     /**
diff --git a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterHandler.java b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterHandler.java
index 84ae53908..bf514f2e9 100644
--- a/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterHandler.java
+++ b/models-sim/policy-models-sim-pdp/src/main/java/org/onap/policy/models/sim/pdp/parameters/PdpSimulatorParameterHandler.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, 2021 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.
@@ -22,7 +22,7 @@
 package org.onap.policy.models.sim.pdp.parameters;
 
 import java.io.File;
-import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.common.utils.coder.Coder;
 import org.onap.policy.common.utils.coder.CoderException;
 import org.onap.policy.common.utils.coder.StandardCoder;
@@ -72,7 +72,7 @@ public class PdpSimulatorParameterHandler {
         }
 
         // validate the parameters
-        final GroupValidationResult validationResult = pdpSimulatorParameterGroup.validate();
+        final ValidationResult validationResult = pdpSimulatorParameterGroup.validate();
         if (!validationResult.isValid()) {
             String returnMessage =
                     "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
diff --git a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterGroup.java b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterGroup.java
index 524fd572e..b7d13ef79 100644
--- a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterGroup.java
+++ b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterGroup.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019 Nordix Foundation.
+ *  Modifications Copyright (C) 2021 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.parameters;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
@@ -27,7 +29,7 @@ import static org.junit.Assert.assertTrue;
 import java.util.Map;
 import org.junit.Test;
 import org.onap.policy.common.endpoints.parameters.TopicParameterGroup;
-import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationResult;
 
 /**
  * Class to perform unit test of {@link PdpSimulatorParameterGroup}.
@@ -50,7 +52,7 @@ public class TestPdpSimulatorParameterGroup {
                 PdpSimulatorParameterGroup.class);
         final PdpStatusParameters pdpStatusParameters = pdpSimulatorParameters.getPdpStatusParameters();
         final TopicParameterGroup topicParameterGroup  = pdpSimulatorParameters.getTopicParameterGroup();
-        final GroupValidationResult validationResult = pdpSimulatorParameters.validate();
+        final ValidationResult validationResult = pdpSimulatorParameters.validate();
         assertTrue(validationResult.isValid());
         assertEquals(CommonTestData.PDP_SIMULATOR_GROUP_NAME, pdpSimulatorParameters.getName());
         assertEquals(CommonTestData.TIME_INTERVAL, pdpStatusParameters.getTimeIntervalMs());
@@ -65,7 +67,7 @@ public class TestPdpSimulatorParameterGroup {
     public void testPdpSimulatorParameterGroup_NullName() {
         final PdpSimulatorParameterGroup pdpSimulatorParameters = commonTestData
                 .toObject(commonTestData.getPdpSimulatorParameterGroupMap(null), PdpSimulatorParameterGroup.class);
-        final GroupValidationResult validationResult = pdpSimulatorParameters.validate();
+        final ValidationResult validationResult = pdpSimulatorParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals(null, pdpSimulatorParameters.getName());
         assertTrue(validationResult.getResult().contains("is null"));
@@ -75,11 +77,11 @@ public class TestPdpSimulatorParameterGroup {
     public void testPdpSimulatorParameterGroup_EmptyName() {
         final PdpSimulatorParameterGroup pdpSimulatorParameters = commonTestData
                 .toObject(commonTestData.getPdpSimulatorParameterGroupMap(""), PdpSimulatorParameterGroup.class);
-        final GroupValidationResult validationResult = pdpSimulatorParameters.validate();
+        final ValidationResult validationResult = pdpSimulatorParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals("", pdpSimulatorParameters.getName());
-        assertTrue(validationResult.getResult().contains(
-                "field \"name\" type \"java.lang.String\" value \"\" INVALID, " + "must be a non-blank string"));
+        assertThat(validationResult.getResult()).contains(
+                "\"name\" value \"\" INVALID, " + "is blank");
     }
 
     @Test
@@ -88,7 +90,7 @@ public class TestPdpSimulatorParameterGroup {
                 commonTestData.getPdpSimulatorParameterGroupMap(CommonTestData.PDP_SIMULATOR_GROUP_NAME),
                 PdpSimulatorParameterGroup.class);
         pdpSimulatorParameters.setName("PdpSimulatorNewGroup");
-        final GroupValidationResult validationResult = pdpSimulatorParameters.validate();
+        final ValidationResult validationResult = pdpSimulatorParameters.validate();
         assertTrue(validationResult.isValid());
         assertEquals("PdpSimulatorNewGroup", pdpSimulatorParameters.getName());
     }
@@ -100,11 +102,10 @@ public class TestPdpSimulatorParameterGroup {
         map.put("pdpStatusParameters", commonTestData.getPdpStatusParametersMap(true));
         final PdpSimulatorParameterGroup pdpSimulatorParameters =
                 commonTestData.toObject(map, PdpSimulatorParameterGroup.class);
-        final GroupValidationResult validationResult = pdpSimulatorParameters.validate();
+        final ValidationResult validationResult = pdpSimulatorParameters.validate();
         assertFalse(validationResult.isValid());
-        assertTrue(validationResult.getResult()
-                .contains("\"org.onap.policy.models.sim.pdp.parameters.PdpSimulatorParameterGroup\" INVALID, "
-                        + "parameter group has status INVALID"));
+        assertThat(validationResult.getResult())
+                .contains("\"PdpSimulatorParameterGroup\" INVALID, item has status INVALID");
     }
 
     @Test
@@ -115,11 +116,10 @@ public class TestPdpSimulatorParameterGroup {
 
         final PdpSimulatorParameterGroup parGroup =
                 commonTestData.toObject(map, PdpSimulatorParameterGroup.class);
-        final GroupValidationResult validationResult = parGroup.validate();
+        final ValidationResult validationResult = parGroup.validate();
         assertFalse(validationResult.isValid());
-        assertTrue(validationResult.getResult()
-                .contains("\"org.onap.policy.common.endpoints.parameters.TopicParameterGroup\" INVALID, "
-                        + "parameter group has status INVALID"));
+        assertThat(validationResult.getResult())
+                .contains("\"TopicParameterGroup\" INVALID, item has status INVALID");
     }
 
 }
diff --git a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterHandler.java b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterHandler.java
index 3ac99f407..03c73cceb 100644
--- a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterHandler.java
+++ b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpSimulatorParameterHandler.java
@@ -1,7 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  *  Copyright (C) 2019-2021 Nordix Foundation.
- *  Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ *  Modifications Copyright (C) 2019, 2021 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.
@@ -111,7 +111,7 @@ public class TestPdpSimulatorParameterHandler {
         arguments.parse(pdpSimulatorConfigParameters);
 
         assertThatThrownBy(() -> new PdpSimulatorParameterHandler().getParameters(arguments)).hasMessageContaining(
-                        "field \"name\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string");
+                        "\"name\" value \" \" INVALID, is blank");
     }
 
     @Test
diff --git a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpStatusParameters.java b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpStatusParameters.java
index 1798bb2f5..09ad29547 100644
--- a/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpStatusParameters.java
+++ b/models-sim/policy-models-sim-pdp/src/test/java/org/onap/policy/models/sim/pdp/parameters/TestPdpStatusParameters.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, 2021 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.
@@ -26,7 +26,7 @@ import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
-import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationResult;
 
 /**
  * Class to perform unit test of {@link PdpStatusParameters}.
@@ -40,7 +40,7 @@ public class TestPdpStatusParameters {
     public void test() {
         final PdpStatusParameters pdpStatusParameters =
                 testData.toObject(testData.getPdpStatusParametersMap(false), PdpStatusParameters.class);
-        final GroupValidationResult validationResult = pdpStatusParameters.validate();
+        final ValidationResult validationResult = pdpStatusParameters.validate();
         assertTrue(validationResult.isValid());
         assertEquals(CommonTestData.TIME_INTERVAL, pdpStatusParameters.getTimeIntervalMs());
         assertEquals(CommonTestData.PDP_TYPE, pdpStatusParameters.getPdpType());
@@ -53,7 +53,7 @@ public class TestPdpStatusParameters {
     public void testValidate() {
         final PdpStatusParameters pdpStatusParameters =
                 testData.toObject(testData.getPdpStatusParametersMap(false), PdpStatusParameters.class);
-        final GroupValidationResult result = pdpStatusParameters.validate();
+        final ValidationResult result = pdpStatusParameters.validate();
         assertNull(result.getResult());
         assertTrue(result.isValid());
     }
diff --git a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/CdsServerParameters.java b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/CdsServerParameters.java
index 97dc35449..5f4c18ffc 100644
--- a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/CdsServerParameters.java
+++ b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/CdsServerParameters.java
@@ -1,6 +1,7 @@
 /*-
  * ============LICENSE_START=======================================================
  * Copyright (C) 2020 Bell Canada.
+ * Modifications Copyright (C) 2021 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.
@@ -23,8 +24,7 @@ import java.util.Base64;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;
-import org.onap.policy.common.parameters.GroupValidationResult;
-import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.ParameterGroupImpl;
 import org.onap.policy.common.parameters.ParameterRuntimeException;
 import org.onap.policy.common.parameters.annotations.Max;
 import org.onap.policy.common.parameters.annotations.Min;
@@ -33,7 +33,7 @@ import org.onap.policy.common.parameters.annotations.NotNull;
 @Getter
 @Setter
 @ToString
-public class CdsServerParameters implements ParameterGroup {
+public class CdsServerParameters extends ParameterGroupImpl {
 
     // Port range constants
     private static final int MIN_USER_PORT = 1024;
@@ -78,11 +78,6 @@ public class CdsServerParameters implements ParameterGroup {
         throw new ParameterRuntimeException("The name of this ParameterGroup implementation is always " + getName());
     }
 
-    @Override
-    public GroupValidationResult validate() {
-        return new GroupValidationResult(this);
-    }
-
     /**
      * Generate base64-encoded Authorization header from username and password.
      *
diff --git a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/ClassRestServerParameters.java b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/ClassRestServerParameters.java
index 030d77449..65f94abe9 100644
--- a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/ClassRestServerParameters.java
+++ b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/ClassRestServerParameters.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020-2021 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.
@@ -21,28 +21,11 @@
 package org.onap.policy.models.simulators;
 
 import lombok.Getter;
-import org.apache.commons.lang3.StringUtils;
 import org.onap.policy.common.endpoints.parameters.RestServerParameters;
-import org.onap.policy.common.parameters.ObjectValidationResult;
-import org.onap.policy.common.parameters.ValidationResult;
-import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.parameters.annotations.ClassName;
+import org.onap.policy.common.parameters.annotations.NotNull;
 
 @Getter
 public class ClassRestServerParameters extends RestServerParameters {
-    private String providerClass;
-
-    /**
-     * Validates the parameters.
-     *
-     * @param containerName name of the parameter container
-     * @return the validation result
-     */
-    public ValidationResult validate(String containerName) {
-        // not using a BeanValidator because username and password are not required
-        if (StringUtils.isBlank(providerClass)) {
-            return new ObjectValidationResult("providerClass", providerClass, ValidationStatus.INVALID, "is empty");
-        }
-
-        return new ObjectValidationResult("providerClass", providerClass);
-    }
+    private @NotNull @ClassName String providerClass;
 }
diff --git a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/SimulatorParameters.java b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/SimulatorParameters.java
index 4b60d5e45..491585e9c 100644
--- a/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/SimulatorParameters.java
+++ b/models-sim/policy-models-simulators/src/main/java/org/onap/policy/models/simulators/SimulatorParameters.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
  * Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -27,8 +27,8 @@ import lombok.Getter;
 import org.onap.policy.common.endpoints.parameters.TopicParameters;
 import org.onap.policy.common.parameters.BeanValidationResult;
 import org.onap.policy.common.parameters.BeanValidator;
-import org.onap.policy.common.parameters.ObjectValidationResult;
 import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.common.parameters.annotations.Valid;
 import org.onap.policy.models.sim.dmaap.parameters.DmaapSimParameterGroup;
 
 /**
@@ -45,27 +45,27 @@ public class SimulatorParameters {
      */
     private DmaapSimParameterGroup dmaapProvider;
 
-    private CdsServerParameters grpcServer;
+    private @Valid CdsServerParameters grpcServer;
 
     /**
      * Parameters for the REST server simulators that are to be started.
      */
-    private List<ClassRestServerParameters> restServers = new LinkedList<>();
+    private List<@Valid ClassRestServerParameters> restServers = new LinkedList<>();
 
     /**
      * Topic sinks that are used by {@link #topicServers}.
      */
-    private List<TopicParameters> topicSinks = new LinkedList<>();
+    private List<@Valid TopicParameters> topicSinks = new LinkedList<>();
 
     /**
      * Topic sources that are used by {@link #topicServers}.
      */
-    private List<TopicParameters> topicSources = new LinkedList<>();
+    private List<@Valid TopicParameters> topicSources = new LinkedList<>();
 
     /**
      * Parameters for the TOPIC server simulators that are to be started.
      */
-    private List<TopicServerParameters> topicServers = new LinkedList<>();
+    private List<@Valid TopicServerParameters> topicServers = new LinkedList<>();
 
 
     /**
@@ -83,21 +83,12 @@ public class SimulatorParameters {
             BeanValidationResult subResult = new BeanValidationResult("dmaapProvider", dmaapProvider);
             subResult.validateNotNull("name", dmaapProvider.getName());
             if (dmaapProvider.getTopicSweepSec() < 1) {
-                ObjectValidationResult fieldResult =
-                                new ObjectValidationResult("topicSweepSec", dmaapProvider.getTopicSweepSec(),
-                                                ValidationStatus.INVALID, "is below the minimum value: 1");
-                subResult.addResult(fieldResult);
+                subResult.addResult("topicSweepSec", dmaapProvider.getTopicSweepSec(),
+                                ValidationStatus.INVALID, "is below the minimum value: 1");
             }
             result.addResult(subResult);
         }
 
-        if (grpcServer != null) {
-            result.addResult(grpcServer.validate());
-        }
-
-        result.validateList("restServers", restServers, params -> params.validate("restServers"));
-        result.validateList("topicServers", topicServers, params -> params.validate("topicServers"));
-
         return result;
     }
 }
diff --git a/models-sim/policy-models-simulators/src/test/java/org/onap/policy/models/simulators/ClassRestServerParametersTest.java b/models-sim/policy-models-simulators/src/test/java/org/onap/policy/models/simulators/ClassRestServerParametersTest.java
index 76637610c..0560e851c 100644
--- a/models-sim/policy-models-simulators/src/test/java/org/onap/policy/models/simulators/ClassRestServerParametersTest.java
+++ b/models-sim/policy-models-simulators/src/test/java/org/onap/policy/models/simulators/ClassRestServerParametersTest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020-2021 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.
@@ -35,7 +35,7 @@ public class ClassRestServerParametersTest {
     @Test
     public void testValidateString() throws CoderException {
         // some fields missing
-        ValidationResult result = new ClassRestServerParameters().validate("InvalidParams");
+        ValidationResult result = new ClassRestServerParameters().validate();
         assertFalse(result.isValid());
         assertNotNull(result.getResult());
 
@@ -43,6 +43,6 @@ public class ClassRestServerParametersTest {
         SimulatorParameters simParams = new StandardCoder()
                         .decode(new File("src/test/resources/simParameters.json"), SimulatorParameters.class);
         ClassRestServerParameters params = simParams.getRestServers().get(0);
-        assertNull(params.validate("ValidParams").getResult());
+        assertNull(params.validate().getResult());
     }
 }