Fix optimization bug add coverage plus

Fix a NPE bug and add more code coverage.

Also is missing returning of context details for subscriber policies.

This code is a bit ad-hoc and there is a separate JIRA POLICY-2147 to
support re-factoring this codebase.

Added scanning for advice to be returned. For optimization, because of
the need for some changes in XACML github dependency, we are stuck with
a little narly code to get it to fully work. POLICY-2417 is created to
address this in Guilen.

Upgraded to released XACML artifact - this has been tested locally for
a few weeks with naming, guard and this optimzation code. It removed
Jackson in lieu of Json, cleaned up some security fixes, upgraded
dependencies, and added more code coverage.

Issue-ID: POLICY-2066
Change-Id: I3cae99de265c815200ec2ce71e471338772bdb5b
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

4 files changed, 55 insertions, 14 deletions

diff --git a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdBaseTranslator.java b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdBaseTranslator.java
index 508bc245..34936b06 100644
--- a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdBaseTranslator.java
+++ b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdBaseTranslator.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * 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.
@@ -22,6 +22,7 @@
 
 package org.onap.policy.pdp.xacml.application.common.std;
 
+import com.att.research.xacml.api.Advice;
 import com.att.research.xacml.api.Decision;
 import com.att.research.xacml.api.Obligation;
 import com.att.research.xacml.api.Request;
@@ -92,6 +93,10 @@ public abstract class StdBaseTranslator implements ToscaPolicyTranslator {
                 // Go through obligations
                 //
                 scanObligations(xacmlResult.getObligations(), decisionResponse);
+                //
+                // Go through advice
+                //
+                scanAdvice(xacmlResult.getAssociatedAdvice(), decisionResponse);
             } else {
                 //
                 // TODO we have to return an ErrorResponse object instead
@@ -114,6 +119,16 @@ public abstract class StdBaseTranslator implements ToscaPolicyTranslator {
     protected abstract void scanObligations(Collection<Obligation> obligations, DecisionResponse decisionResponse);
 
     /**
+     * scanAdvice - scans the list of advice and make appropriate call to process the advice. This method
+     * can be overridden for each specific application as advice may have different expected attributes per
+     * application.
+     *
+     * @param advice Collection of Advice objects
+     * @param decisionResponse DecisionResponse object used to store any results from advice.
+     */
+    protected abstract void scanAdvice(Collection<Advice> advice, DecisionResponse decisionResponse);
+
+    /**
      * From the TOSCA metadata section, pull in values that are needed into the XACML policy.
      *
      * @param policy Policy Object to store the metadata
diff --git a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdCombinedPolicyResultsTranslator.java b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdCombinedPolicyResultsTranslator.java
index bcd594fb..0a1ace2b 100644
--- a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdCombinedPolicyResultsTranslator.java
+++ b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdCombinedPolicyResultsTranslator.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * 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.
@@ -22,6 +22,7 @@
 
 package org.onap.policy.pdp.xacml.application.common.std;
 
+import com.att.research.xacml.api.Advice;
 import com.att.research.xacml.api.DataTypeException;
 import com.att.research.xacml.api.Identifier;
 import com.att.research.xacml.api.Obligation;
@@ -158,6 +159,21 @@ public class StdCombinedPolicyResultsTranslator extends StdBaseTranslator {
     }
 
     /**
+     * scanAdvice - not implemented in this class.
+     *
+     * @param advice Collection of advice objects
+     * @param DecisionResponse DecisionResponse object
+     */
+    @Override
+    protected void scanAdvice(Collection<Advice> advice, DecisionResponse decisionResponse) {
+        //
+        // By default there are no advice supported in this object. Please override and provide
+        // any needed functionality.
+        //
+        LOGGER.warn("Advice found - not supported in this class {}", this.getClass());
+    }
+
+    /**
      * scanContentObligation - scans the specific obligation for policy-id and policy-content.
      *
      * @param obligation Obligation incoming obligation object
diff --git a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchablePolicyRequest.java b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchablePolicyRequest.java
index 2d83b897..2cb82942 100644
--- a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchablePolicyRequest.java
+++ b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchablePolicyRequest.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * 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.
@@ -92,7 +92,7 @@ public class StdMatchablePolicyRequest {
     }
 
     /**
-     * Parses the DecisionRequest into a MonitoringRequest.
+     * Parses the DecisionRequest into a XAML request.
      *
      * @param decisionRequest Input DecisionRequest
      * @return Request XACML Request object
diff --git a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchableTranslator.java b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchableTranslator.java
index 0d1daaa6..e84a9e77 100644
--- a/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchableTranslator.java
+++ b/applications/common/src/main/java/org/onap/policy/pdp/xacml/application/common/std/StdMatchableTranslator.java
@@ -22,6 +22,7 @@
 
 package org.onap.policy.pdp.xacml.application.common.std;
 
+import com.att.research.xacml.api.Advice;
 import com.att.research.xacml.api.Identifier;
 import com.att.research.xacml.api.Obligation;
 import com.att.research.xacml.api.Request;
@@ -84,6 +85,10 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
     private static final Logger LOGGER = LoggerFactory.getLogger(StdMatchableTranslator.class);
     private static final StandardYamlCoder standardYamlCoder = new StandardYamlCoder();
 
+    private static final String MSG_WEIGHT = "Weight is {}";
+    private static final String MSG_WEIGHT_LIST = "Weight list is {}";
+    private static final String MSG_WEIGHT_MAP = "Weight map is {}";
+
     private final Map<ToscaPolicyTypeIdentifier, ToscaServiceTemplate> matchablePolicyTypes = new HashMap<>();
     @Setter
     private RestServerParameters apiRestParameters;
@@ -155,6 +160,10 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
         );
     }
 
+    protected void scanAdvice(Collection<Advice> advice, DecisionResponse decisionResponse) {
+        LOGGER.warn("scanAdvice not supported by {}", this.getClass());
+    }
+
     /**
      * scanClosestMatchObligation - scans for the obligation specifically holding policy
      * contents and their details.
@@ -384,7 +393,7 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                 //
                 int weight = generateMatchable(targetType, entrySet.getKey(), entrySet.getValue(),
                         property.getLeft(), property.getRight());
-                LOGGER.info("Weight is {}", weight);
+                LOGGER.info(MSG_WEIGHT, weight);
                 totalWeight += weight;
             } else {
                 //
@@ -394,12 +403,12 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                 if ("list".equals(toscaProperty.getType())) {
                     int weight = findMatchablesInList(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                             policyTemplate, targetType);
-                    LOGGER.info("Weight list is {}", weight);
+                    LOGGER.info(MSG_WEIGHT_LIST, weight);
                     totalWeight += weight;
                 } else if ("map".equals(toscaProperty.getType())) {
                     int weight = findMatchablesInMap(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                             policyTemplate, targetType);
-                    LOGGER.info("Weight map is {}", weight);
+                    LOGGER.info(MSG_WEIGHT_MAP, weight);
                     totalWeight += weight;
                 }
             }
@@ -460,7 +469,7 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                     //
                     int weight = generateMatchable(targetType, entrySet.getKey(), entrySet.getValue(),
                             toscaProperty, listTemplate);
-                    LOGGER.info("Weight is {}", weight);
+                    LOGGER.info(MSG_WEIGHT, weight);
                     totalWeight += weight;
                 } else {
                     //
@@ -470,12 +479,12 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                     if ("list".equals(toscaProperty.getType())) {
                         int weight = findMatchablesInList(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                                 listTemplate, targetType);
-                        LOGGER.info("Weight list is {}", weight);
+                        LOGGER.info(MSG_WEIGHT_LIST, weight);
                         totalWeight += weight;
                     } else if ("map".equals(toscaProperty.getType())) {
                         int weight = findMatchablesInMap(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                                 listTemplate, targetType);
-                        LOGGER.info("Weight map is {}", weight);
+                        LOGGER.info(MSG_WEIGHT_MAP, weight);
                         totalWeight += weight;
                     }
                 }
@@ -529,7 +538,7 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                 //
                 int weight = generateMatchable(targetType, entrySet.getKey(), entrySet.getValue(),
                         toscaProperty, mapTemplate);
-                LOGGER.info("Weight is {}", weight);
+                LOGGER.info(MSG_WEIGHT, weight);
                 totalWeight += weight;
             } else {
                 //
@@ -539,12 +548,12 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
                 if ("list".equals(toscaProperty.getType())) {
                     int weight = findMatchablesInList(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                             mapTemplate, targetType);
-                    LOGGER.info("Weight list is {}", weight);
+                    LOGGER.info(MSG_WEIGHT_LIST, weight);
                     totalWeight += weight;
                 } else if ("map".equals(toscaProperty.getType())) {
                     int weight = findMatchablesInMap(entrySet.getKey(), entrySet.getValue(), toscaProperty,
                             mapTemplate, targetType);
-                    LOGGER.info("Weight map is {}", weight);
+                    LOGGER.info(MSG_WEIGHT_MAP, weight);
                     totalWeight += weight;
                 }
             }
@@ -721,7 +730,8 @@ public class StdMatchableTranslator  extends StdBaseTranslator {
         int weight = 0;
         if (isYamlType(toscaProperty.getEntrySchema().getType())) {
             //
-            // PLD TODO - this won't work
+            // PLD TODO - this won't work. Right now there are no maps being used to match.
+            // need to investigate whether we really can support that situation.
             //
             AnyOfType anyOf = generateMatches((Collection<Object>) value,
                     new IdentifierImpl(ToscaDictionary.ID_RESOURCE_MATCHABLE + key));