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: I039f761745316fea41d63bdc885584c9a9c2bc6e
Signed-off-by: Jim Hahn <jrh3@att.com>

4 files changed, 49 insertions, 93 deletions

diff --git a/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterGroup.java b/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterGroup.java
index c5b81af1..12fec484 100644
--- a/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterGroup.java
+++ b/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterGroup.java
@@ -22,36 +22,35 @@
 package org.onap.policy.pdpx.main.parameters;
 
 import lombok.Getter;
-import lombok.Setter;
 import org.apache.commons.lang3.StringUtils;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.parameters.RestServerParameters;
 import org.onap.policy.common.endpoints.parameters.TopicParameterGroup;
-import org.onap.policy.common.parameters.GroupValidationResult;
-import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.BeanValidationResult;
+import org.onap.policy.common.parameters.ParameterGroupImpl;
 import org.onap.policy.common.parameters.ValidationStatus;
-import org.onap.policy.common.utils.validation.ParameterValidationUtils;
+import org.onap.policy.common.parameters.annotations.NotBlank;
+import org.onap.policy.common.parameters.annotations.NotNull;
+import org.onap.policy.common.parameters.annotations.Valid;
+import org.onap.policy.models.base.Validated;
 
 /**
  * Class to hold all parameters needed for xacml pdp component.
  *
  */
 @Getter
-public class XacmlPdpParameterGroup implements ParameterGroup {
-    private static final String PARAM_REST_SERVER = "restServerParameters";
+@NotNull
+@NotBlank
+public class XacmlPdpParameterGroup extends ParameterGroupImpl {
     private static final String PARAM_POLICY_API = "policyApiParameters";
-    private static final String PARAM_TOPIC_PARAMETER_GROUP = "topicParameterGroup";
-    private static final String PARAM_APPLICATION_PATH = "applicationPath";
-
-    private static final String ERROR_MSG = "must be a non-blank string";
-
-    @Setter
-    private String name;
 
     private String pdpGroup;
     private String pdpType;
+    @Valid
     private RestServerParameters restServerParameters;
+    @Valid
     private BusTopicParams policyApiParameters;
+    @Valid
     private TopicParameterGroup topicParameterGroup;
     private String applicationPath;
 
@@ -64,7 +63,7 @@ public class XacmlPdpParameterGroup implements ParameterGroup {
     public XacmlPdpParameterGroup(final String name, final String pdpGroup, final String pdpType,
             final RestServerParameters restServerParameters, final BusTopicParams policyApiParameters,
             final TopicParameterGroup topicParameterGroup, final String applicationPath) {
-        this.name = name;
+        super(name);
         this.pdpGroup = pdpGroup;
         this.pdpType = pdpType;
         this.restServerParameters = restServerParameters;
@@ -79,43 +78,15 @@ public class XacmlPdpParameterGroup implements ParameterGroup {
      * @return the result of the validation
      */
     @Override
-    public GroupValidationResult validate() {
-        final GroupValidationResult validationResult = new GroupValidationResult(this);
-        if (!ParameterValidationUtils.validateStringParameter(name)) {
-            validationResult.setResult("name", ValidationStatus.INVALID, ERROR_MSG);
-        }
-        if (!ParameterValidationUtils.validateStringParameter(pdpGroup)) {
-            validationResult.setResult("pdpGroup", ValidationStatus.INVALID, ERROR_MSG);
-        }
-        if (!ParameterValidationUtils.validateStringParameter(pdpType)) {
-            validationResult.setResult("pdpType", ValidationStatus.INVALID, ERROR_MSG);
-        }
-        if (restServerParameters == null) {
-            validationResult.setResult(PARAM_REST_SERVER, ValidationStatus.INVALID,
-                    "must have restServerParameters to configure xacml pdp rest server");
-        } else {
-            validationResult.setResult(PARAM_REST_SERVER, restServerParameters.validate());
-        }
-        if (policyApiParameters == null) {
-            validationResult.setResult(PARAM_POLICY_API, ValidationStatus.INVALID,
-                            "must have policyApiParameters to configure xacml pdp rest server");
-        } else if (StringUtils.isBlank(policyApiParameters.getHostname())) {
-            validationResult.setResult(PARAM_POLICY_API, ValidationStatus.INVALID,
-                            "must have hostname to configure xacml pdp api client");
-        }
-        if (topicParameterGroup == null) {
-            validationResult.setResult(PARAM_TOPIC_PARAMETER_GROUP, ValidationStatus.INVALID,
-                    "must have topicParameterGroup to configure xacml pdp topic sink and source");
-        } else {
-            validationResult.setResult(PARAM_TOPIC_PARAMETER_GROUP, topicParameterGroup.validate());
-        }
-        //
-        // Validate the application path directory
-        //
-        if (applicationPath == null || applicationPath.isEmpty()) {
-            validationResult.setResult(PARAM_APPLICATION_PATH, ValidationStatus.INVALID,
-                    "must have application path for applications to store policies and data.");
+    public BeanValidationResult validate() {
+        final BeanValidationResult validationResult = super.validate();
+
+        if (policyApiParameters != null && StringUtils.isBlank(policyApiParameters.getHostname())) {
+            BeanValidationResult sub = new BeanValidationResult(PARAM_POLICY_API, policyApiParameters);
+            sub.addResult("hostname", policyApiParameters.getHostname(), ValidationStatus.INVALID, Validated.IS_NULL);
+            validationResult.addResult(sub);
         }
+
         return validationResult;
     }
 }
diff --git a/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterHandler.java b/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterHandler.java
index 9aaf3dae..aac05752 100644
--- a/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterHandler.java
+++ b/main/src/main/java/org/onap/policy/pdpx/main/parameters/XacmlPdpParameterHandler.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * 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.
@@ -23,7 +23,7 @@ package org.onap.policy.pdpx.main.parameters;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import java.io.FileReader;
-import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ValidationResult;
 import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
 import org.onap.policy.pdpx.main.startstop.XacmlPdpCommandLineArguments;
 import org.slf4j.Logger;
@@ -69,7 +69,7 @@ public class XacmlPdpParameterHandler {
         }
 
         // validate the parameters
-        final GroupValidationResult validationResult = xacmlPdpParameterGroup.validate();
+        final ValidationResult validationResult = xacmlPdpParameterGroup.validate();
         if (!validationResult.isValid()) {
             String returnMessage =
                     "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java
index 1c4cf1d0..b2d1cbe3 100644
--- a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java
+++ b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterGroup.java
@@ -36,7 +36,7 @@ import org.junit.rules.TemporaryFolder;
 import org.onap.policy.common.endpoints.event.comm.bus.internal.BusTopicParams;
 import org.onap.policy.common.endpoints.parameters.RestServerParameters;
 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 XacmlPdpParameterGroup.
@@ -67,7 +67,7 @@ public class TestXacmlPdpParameterGroup {
                         new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME,
                                 CommonTestData.PDPX_GROUP, "flavor", restServerParameters, policyApiParameters,
                                 topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertThat(validationResult.getResult()).isNull();
         assertTrue(validationResult.isValid());
         assertEquals(restServerParameters.getHost(), pdpxParameters.getRestServerParameters().getHost());
@@ -91,11 +91,10 @@ public class TestXacmlPdpParameterGroup {
         final XacmlPdpParameterGroup pdpxParameters = new XacmlPdpParameterGroup(null, CommonTestData.PDPX_GROUP,
                 null, restServerParameters, policyApiParameters, topicParameterGroup,
                 applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals(null, pdpxParameters.getName());
-        assertTrue(validationResult.getResult().contains(
-                "field \"name\" type \"java.lang.String\" value \"null\" INVALID, " + "must be a non-blank string"));
+        assertThat(validationResult.getResult()).contains("\"name\" value \"null\" INVALID, is null");
     }
 
     @Test
@@ -109,11 +108,10 @@ public class TestXacmlPdpParameterGroup {
         final XacmlPdpParameterGroup pdpxParameters = new XacmlPdpParameterGroup("", CommonTestData.PDPX_GROUP,
                 CommonTestData.PDPX_TYPE, restServerParameters, policyApiParameters, topicParameterGroup,
                 applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals("", pdpxParameters.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
@@ -127,12 +125,10 @@ public class TestXacmlPdpParameterGroup {
         final XacmlPdpParameterGroup pdpxParameters =
                 new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME, null, null, restServerParameters,
                         policyApiParameters, topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals(null, pdpxParameters.getPdpGroup());
-        assertTrue(validationResult.getResult()
-                .contains("field \"pdpGroup\" type \"java.lang.String\" value \"null\" INVALID, "
-                        + "must be a non-blank string"));
+        assertThat(validationResult.getResult()).contains("\"pdpGroup\" value \"null\" INVALID, is null");
     }
 
     @Test
@@ -146,12 +142,10 @@ public class TestXacmlPdpParameterGroup {
         final XacmlPdpParameterGroup pdpxParameters =
                 new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME, "", null, restServerParameters,
                         policyApiParameters, topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
         assertEquals("", pdpxParameters.getPdpGroup());
-        assertTrue(validationResult.getResult()
-                .contains("field \"pdpGroup\" type \"java.lang.String\" value \"\" INVALID, "
-                        + "must be a non-blank string"));
+        assertThat(validationResult.getResult()).contains("\"pdpGroup\" value \"\" INVALID, is blank");
     }
 
     @Test
@@ -166,10 +160,9 @@ public class TestXacmlPdpParameterGroup {
                 new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME, CommonTestData.PDPX_GROUP,
                         null, restServerParameters, policyApiParameters,
                         topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
-        assertTrue(validationResult.getResult()
-                .contains("parameter group \"RestServerParameters\""));
+        assertThat(validationResult.getResult()).contains("\"RestServerParameters\"");
     }
 
     @Test
@@ -184,10 +177,9 @@ public class TestXacmlPdpParameterGroup {
                 new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME, CommonTestData.PDPX_GROUP,
                         null, restServerParameters, policyApiParameters,
                         topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
-        assertThat(validationResult.getResult())
-                .contains("field \"policyApiParameters\"");
+        assertThat(validationResult.getResult()).contains("\"policyApiParameters\"");
     }
 
     @Test
@@ -202,9 +194,8 @@ public class TestXacmlPdpParameterGroup {
                 new XacmlPdpParameterGroup(CommonTestData.PDPX_PARAMETER_GROUP_NAME, CommonTestData.PDPX_GROUP,
                         null, restServerParameters, policyApiParameters,
                         topicParameterGroup, applicationPath.getAbsolutePath());
-        final GroupValidationResult validationResult = pdpxParameters.validate();
+        final ValidationResult validationResult = pdpxParameters.validate();
         assertFalse(validationResult.isValid());
-        assertTrue(validationResult.getResult()
-                .contains("parameter group \"TopicParameterGroup\""));
+        assertThat(validationResult.getResult()).contains("\"TopicParameterGroup\"");
     }
 }
diff --git a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java
index 1b62965d..570b4319 100644
--- a/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java
+++ b/main/src/test/java/org/onap/policy/pdpx/main/parameters/TestXacmlPdpParameterHandler.java
@@ -94,18 +94,12 @@ public class TestXacmlPdpParameterHandler {
         noArguments.parse(noArgumentString);
 
         assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(noArguments))
-                .hasMessage("validation error(s) on parameters from \"parameters/NoParameters.json\"\n"
-                        + "parameter group \"null\" type "
-                        + "\"org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup\""
-                        + " INVALID, parameter group has status INVALID\n"
-                        + "  field \"name\" type \"java.lang.String\" value \"null\" INVALID, "
-                        + "must be a non-blank string\n"
-                        + "  field \"pdpGroup\" type \"java.lang.String\" value \"null\" INVALID, "
-                        + "must be a non-blank string\n"
-                        + "  field \"pdpType\" type \"java.lang.String\" value \"null\" INVALID, "
-                        + "must be a non-blank string\n"
-                        + "  field \"applicationPath\" type \"java.lang.String\" value \"null\" INVALID, "
-                        + "must have application path for applications to store policies and data.\n");
+                .hasMessageContaining("validation error(s) on parameters from \"parameters/NoParameters.json\"",
+                        "\"XacmlPdpParameterGroup\" INVALID, item has status INVALID",
+                        "\"name\" value \"null\" INVALID, is null",
+                        "\"pdpGroup\" value \"null\" INVALID, is null",
+                        "\"pdpType\" value \"null\" INVALID, is null",
+                        "\"applicationPath\" value \"null\" INVALID, is null");
     }
 
     @Test
@@ -142,20 +136,20 @@ public class TestXacmlPdpParameterHandler {
         arguments.parse(xacmlPdpConfigParameters);
 
         assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(arguments)).hasMessageContaining(
-                "field \"name\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string");
+                "\"name\" value \" \" INVALID, is blank");
         xacmlPdpConfigParameters[1] = "parameters/XacmlPdpConfigParameters_InvalidPdpGroup.json";
 
         arguments.parse(xacmlPdpConfigParameters);
 
         assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(arguments)).hasMessageContaining(
-                "field \"pdpGroup\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string");
+                "\"pdpGroup\" value \" \" INVALID, is blank");
 
         xacmlPdpConfigParameters[1] = "parameters/XacmlPdpConfigParameters_InvalidPdpType.json";
 
         arguments.parse(xacmlPdpConfigParameters);
 
         assertThatThrownBy(() -> new XacmlPdpParameterHandler().getParameters(arguments)).hasMessageContaining(
-                "field \"pdpType\" type \"java.lang.String\" value \"\" INVALID, must be a non-blank string");
+                "\"pdpType\" value \"\" INVALID, is blank");
     }
 
     @Test