Update policy libraries

Update policy libraries + small reworking of the op policy code

Issue-ID: CLAMP-215
Change-Id: I5dad2b9eaf4f6855d2c69f4533b3aae95d155d25
Signed-off-by: sebdet <sd378r@intl.att.com>

6 files changed, 135 insertions, 123 deletions

diff --git a/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDelegate.java b/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDelegate.java
index ddadb55c..39377d4a 100644
--- a/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDelegate.java
+++ b/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDelegate.java
@@ -19,7 +19,7 @@
  * ============LICENSE_END============================================
  * Modifications copyright (c) 2018 Nokia
  * ===================================================================
- * 
+ *
  */
 
 package org.onap.clamp.clds.client;
@@ -55,14 +55,11 @@ public class OperationalPolicyDelegate {
     protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
     private final PolicyClient policyClient;
     private final ClampProperties refProp;
-    private final OperationalPolicyAttributesConstructor attributesConstructor;
 
     @Autowired
-    public OperationalPolicyDelegate(PolicyClient policyClient, ClampProperties refProp,
-                                     OperationalPolicyAttributesConstructor attributesConstructor) {
+    public OperationalPolicyDelegate(PolicyClient policyClient, ClampProperties refProp) {
         this.policyClient = policyClient;
         this.refProp = refProp;
-        this.attributesConstructor = attributesConstructor;
     }
 
     /**
@@ -82,8 +79,8 @@ public class OperationalPolicyDelegate {
         Policy policy = prop.getType(Policy.class);
         if (policy.isFound()) {
             for (PolicyChain policyChain : prop.getType(Policy.class).getPolicyChains()) {
-                Map<AttributeType, Map<String, String>> attributes = attributesConstructor.formatAttributes(refProp,
-                        prop, prop.getType(Policy.class).getId(), policyChain);
+                Map<AttributeType, Map<String, String>> attributes = OperationalPolicyAttributesConstructor.formatAttributes(refProp,
+                    prop, prop.getType(Policy.class).getId(), policyChain);
                 responseMessage = policyClient.sendBrmsPolicy(attributes, prop, LoggingUtils.getRequestId());
             }
             if (responseMessage != null) {
diff --git a/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDeleteDelegate.java b/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDeleteDelegate.java
index 08cfba14..87299935 100644
--- a/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDeleteDelegate.java
+++ b/src/main/java/org/onap/clamp/clds/client/OperationalPolicyDeleteDelegate.java
@@ -18,7 +18,7 @@
  * limitations under the License.
  * ============LICENSE_END============================================
  * ===================================================================
- * 
+ *
  */
 
 package org.onap.clamp.clds.client;
@@ -43,7 +43,7 @@ import org.springframework.stereotype.Component;
 public class OperationalPolicyDeleteDelegate {
 
     protected static final EELFLogger logger = EELFManager.getInstance()
-            .getLogger(OperationalPolicyDeleteDelegate.class);
+        .getLogger(OperationalPolicyDeleteDelegate.class);
     protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
     @Autowired
     private PolicyClient policyClient;
diff --git a/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyAttributesConstructor.java b/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyAttributesConstructor.java
index 09f98f19..c28f700b 100644
--- a/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyAttributesConstructor.java
+++ b/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyAttributesConstructor.java
@@ -28,45 +28,40 @@ import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableMap;
+
+import java.io.UnsupportedEncodingException;
+import java.util.HashMap;
+import java.util.Map;
+
 import org.onap.clamp.clds.config.ClampProperties;
 import org.onap.clamp.clds.model.properties.ModelProperties;
 import org.onap.clamp.clds.model.properties.PolicyChain;
 import org.onap.clamp.clds.model.properties.PolicyItem;
 import org.onap.policy.api.AttributeType;
 import org.onap.policy.controlloop.policy.builder.BuilderException;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Component;
-
-import java.io.UnsupportedEncodingException;
-import java.util.HashMap;
-import java.util.Map;
 
-@Component
 public class OperationalPolicyAttributesConstructor {
 
     private static final EELFLogger logger = EELFManager.getInstance()
-            .getLogger(OperationalPolicyAttributesConstructor.class);
-    static final String TEMPLATE_NAME = "templateName";
-    static final String CLOSED_LOOP_CONTROL_NAME = "closedLoopControlName";
-    static final String NOTIFICATION_TOPIC = "notificationTopic";
-    static final String OPERATION_TOPIC = "operationTopic";
-    static final String CONTROL_LOOP_YAML = "controlLoopYaml";
-    static final String CONTROLLER = "controller";
-    static final String RECIPE = "Recipe";
-    static final String MAX_RETRIES = "MaxRetries";
-    static final String RETRY_TIME_LIMIT = "RetryTimeLimit";
-    static final String RESOURCE_ID = "ResourceId";
-    static final String RECIPE_TOPIC = "RecipeTopic";
-    private OperationalPolicyYamlFormatter policyYamlFormatter;
-
-    @Autowired
-    protected OperationalPolicyAttributesConstructor(OperationalPolicyYamlFormatter policyYamlFormatter) {
-        this.policyYamlFormatter = policyYamlFormatter;
+        .getLogger(OperationalPolicyAttributesConstructor.class);
+    public static final String TEMPLATE_NAME = "templateName";
+    public static final String CLOSED_LOOP_CONTROL_NAME = "closedLoopControlName";
+    public static final String NOTIFICATION_TOPIC = "notificationTopic";
+    public static final String OPERATION_TOPIC = "operationTopic";
+    public static final String CONTROL_LOOP_YAML = "controlLoopYaml";
+    public static final String CONTROLLER = "controller";
+    public static final String RECIPE = "Recipe";
+    public static final String MAX_RETRIES = "MaxRetries";
+    public static final String RETRY_TIME_LIMIT = "RetryTimeLimit";
+    public static final String RESOURCE_ID = "ResourceId";
+    public static final String RECIPE_TOPIC = "RecipeTopic";
+
+    private OperationalPolicyAttributesConstructor() {
     }
 
-    public Map<AttributeType, Map<String, String>> formatAttributes(ClampProperties refProp,
-                                                                    ModelProperties modelProperties,
-                                                                    String modelElementId, PolicyChain policyChain)
+    public static Map<AttributeType, Map<String, String>> formatAttributes(ClampProperties refProp,
+        ModelProperties modelProperties,
+        String modelElementId, PolicyChain policyChain)
             throws BuilderException, UnsupportedEncodingException {
         modelProperties.setCurrentModelElementId(modelElementId);
         modelProperties.setPolicyUniqueId(policyChain.getPolicyId());
@@ -74,14 +69,14 @@ public class OperationalPolicyAttributesConstructor {
         String globalService = modelProperties.getGlobal().getService();
 
         Map<String, String> ruleAttributes = prepareRuleAttributes(refProp, modelProperties, modelElementId,
-                policyChain, globalService);
+            policyChain, globalService);
         Map<String, String> matchingAttributes = prepareMatchingAttributes(refProp, globalService);
 
         return createAttributesMap(matchingAttributes, ruleAttributes);
     }
 
-    private Map<String, String> prepareRuleAttributes(ClampProperties clampProperties, ModelProperties modelProperties,
-                                                   String modelElementId, PolicyChain policyChain, String globalService)
+    private static Map<String, String> prepareRuleAttributes(ClampProperties clampProperties, ModelProperties modelProperties,
+        String modelElementId, PolicyChain policyChain, String globalService)
             throws BuilderException, UnsupportedEncodingException {
         logger.info("Preparing rule attributes...");
         String templateName = clampProperties.getStringValue("op.templateName", globalService);
@@ -94,13 +89,13 @@ public class OperationalPolicyAttributesConstructor {
         ruleAttributes.put(NOTIFICATION_TOPIC, notificationTopic);
 
         ImmutableMap<String, String> attributes = createRuleAttributesFromPolicy(clampProperties, modelProperties,
-                modelElementId, policyChain, globalService, operationTopic);
+            modelElementId, policyChain, globalService, operationTopic);
         ruleAttributes.putAll(attributes);
         logger.info("Prepared: " + ruleAttributes);
         return ruleAttributes;
     }
 
-    private Map<String, String> prepareMatchingAttributes(ClampProperties refProp, String globalService) {
+    private static Map<String, String> prepareMatchingAttributes(ClampProperties refProp, String globalService) {
         logger.info("Preparing matching attributes...");
         String controller = refProp.getStringValue("op.controller", globalService);
         Map<String, String> matchingAttributes = new HashMap<>();
@@ -109,50 +104,50 @@ public class OperationalPolicyAttributesConstructor {
         return matchingAttributes;
     }
 
-    private Map<AttributeType, Map<String, String>> createAttributesMap(Map<String, String> matchingAttributes,
-                                                                        Map<String, String> ruleAttributes) {
+    private static Map<AttributeType, Map<String, String>> createAttributesMap(Map<String, String> matchingAttributes,
+        Map<String, String> ruleAttributes) {
         Map<AttributeType, Map<String, String>> attributes = new HashMap<>();
         attributes.put(AttributeType.RULE, ruleAttributes);
         attributes.put(AttributeType.MATCHING, matchingAttributes);
         return attributes;
     }
 
-    private ImmutableMap<String, String> createRuleAttributesFromPolicy(ClampProperties refProp, ModelProperties modelProperties,
-                                                                        String modelElementId, PolicyChain policyChain,
-                                                                        String globalService, String operationTopic)
+    private static ImmutableMap<String, String> createRuleAttributesFromPolicy(ClampProperties refProp, ModelProperties modelProperties,
+        String modelElementId, PolicyChain policyChain,
+        String globalService, String operationTopic)
             throws BuilderException, UnsupportedEncodingException {
         if (Strings.isNullOrEmpty(operationTopic)) {
             // if no operationTopic, then don't format yaml - use first policy
             String recipeTopic = refProp.getStringValue("op.recipeTopic", globalService);
             return createRuleAttributesFromPolicyItem(
-                    policyChain.getPolicyItems().get(0), recipeTopic);
+                policyChain.getPolicyItems().get(0), recipeTopic);
         } else {
             return createRuleAttributesFromPolicyChain(policyChain, modelProperties,
-                    modelElementId, operationTopic);
+                modelElementId, operationTopic);
         }
     }
 
-    private ImmutableMap<String, String> createRuleAttributesFromPolicyItem(PolicyItem policyItem, String recipeTopic) {
+    private static ImmutableMap<String, String> createRuleAttributesFromPolicyItem(PolicyItem policyItem, String recipeTopic) {
         logger.info("recipeTopic=" + recipeTopic);
         return ImmutableMap.<String, String>builder()
-                .put(RECIPE_TOPIC, recipeTopic)
-                .put(RECIPE, policyItem.getRecipe())
-                .put(MAX_RETRIES, String.valueOf(policyItem.getMaxRetries()))
-                .put(RETRY_TIME_LIMIT, String.valueOf(policyItem.getRetryTimeLimit()))
-                .put(RESOURCE_ID, String.valueOf(policyItem.getTargetResourceId()))
-                .build();
+            .put(RECIPE_TOPIC, recipeTopic)
+            .put(RECIPE, policyItem.getRecipe())
+            .put(MAX_RETRIES, String.valueOf(policyItem.getMaxRetries()))
+            .put(RETRY_TIME_LIMIT, String.valueOf(policyItem.getRetryTimeLimit()))
+            .put(RESOURCE_ID, String.valueOf(policyItem.getTargetResourceId()))
+            .build();
     }
 
-    private ImmutableMap<String, String> createRuleAttributesFromPolicyChain(PolicyChain policyChain,
-                                                                             ModelProperties modelProperties,
-                                                                             String modelElementId,
-                                                                             String operationTopic)
+    private static ImmutableMap<String, String> createRuleAttributesFromPolicyChain(PolicyChain policyChain,
+        ModelProperties modelProperties,
+        String modelElementId,
+        String operationTopic)
             throws BuilderException, UnsupportedEncodingException {
         logger.info("operationTopic=" + operationTopic);
-        String yaml = policyYamlFormatter.formatYaml(modelProperties, modelElementId, policyChain);
+        String yaml = OperationalPolicyYamlFormatter.formatYaml(modelProperties, modelElementId, policyChain);
         return ImmutableMap.<String, String>builder()
-                .put(OPERATION_TOPIC, operationTopic)
-                .put(CONTROL_LOOP_YAML, yaml)
-                .build();
+            .put(OPERATION_TOPIC, operationTopic)
+            .put(CONTROL_LOOP_YAML, yaml)
+            .build();
     }
 }
\ No newline at end of file
diff --git a/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyYamlFormatter.java b/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyYamlFormatter.java
index 550c4dcc..1fc36082 100644
--- a/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyYamlFormatter.java
+++ b/src/main/java/org/onap/clamp/clds/client/req/policy/OperationalPolicyYamlFormatter.java
@@ -25,6 +25,17 @@ package org.onap.clamp.clds.client.req.policy;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.BadRequestException;
+
 import org.onap.clamp.clds.model.properties.Global;
 import org.onap.clamp.clds.model.properties.ModelProperties;
 import org.onap.clamp.clds.model.properties.PolicyChain;
@@ -40,24 +51,43 @@ import org.onap.policy.controlloop.policy.builder.Results;
 import org.onap.policy.sdc.Resource;
 import org.onap.policy.sdc.ResourceType;
 import org.onap.policy.sdc.Service;
-import org.springframework.stereotype.Component;
 
-import javax.ws.rs.BadRequestException;
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-@Component
-class OperationalPolicyYamlFormatter {
+public class OperationalPolicyYamlFormatter {
     private static final EELFLogger logger = EELFManager.getInstance().getLogger(OperationalPolicyYamlFormatter.class);
 
+    protected OperationalPolicyYamlFormatter() {
+    }
+    /**
+     * Format Operational OpenLoop Policy yaml.
+     *
+     * @param prop
+     * @param modelElementId
+     * @param policyChain
+     * @return
+     * @throws BuilderException
+     * @throws UnsupportedEncodingException
+     */
+    public static String formatOpenLoopYaml(ModelProperties prop, String modelElementId,
+        PolicyChain policyChain) throws BuilderException, UnsupportedEncodingException {
+        // get property objects
+        Global global = prop.getGlobal();
+        prop.setCurrentModelElementId(modelElementId);
+        prop.setPolicyUniqueId(policyChain.getPolicyId());
+        // convert values to SDC objects
+        Service service = new Service(global.getService());
+        Resource[] vfResources = convertToResources(global.getResourceVf(), ResourceType.VF);
+        // create builder
+        ControlLoopPolicyBuilder builder = ControlLoopPolicyBuilder.Factory.buildControlLoop(prop.getControlName(),
+            policyChain.getTimeout(), service, vfResources);
+        // builder.setTriggerPolicy(refProp.getStringValue("op.openloop.policy"));
+        // Build the specification
+        Results results = builder.buildSpecification();
+        validate(results);
+        return URLEncoder.encode(results.getSpecification(), "UTF-8");
+    }
 
-    String formatYaml(ModelProperties prop, String modelElementId,
-                             PolicyChain policyChain) throws BuilderException, UnsupportedEncodingException {
+    public static String formatYaml(ModelProperties prop, String modelElementId,
+        PolicyChain policyChain) throws BuilderException, UnsupportedEncodingException {
         // get property objects
         Global global = prop.getGlobal();
         prop.setCurrentModelElementId(modelElementId);
@@ -68,10 +98,10 @@ class OperationalPolicyYamlFormatter {
         Resource[] vfcResources = convertToResources(global.getResourceVfc(), ResourceType.VFC);
         // create builder
         ControlLoopPolicyBuilder builder = ControlLoopPolicyBuilder.Factory.buildControlLoop(prop.getControlName(),
-                policyChain.getTimeout(), service, vfResources);
+            policyChain.getTimeout(), service, vfResources);
         builder.addResource(vfcResources);
         // process each policy
-        Map<String, Policy> policyObjMap = new HashMap<String, Policy>();
+        Map<String, Policy> policyObjMap = new HashMap<>();
         List<PolicyItem> policyItemList = orderParentFirst(policyChain.getPolicyItems());
         for (PolicyItem policyItem : policyItemList) {
             String policyName = policyItem.getRecipe() + " Policy";
@@ -87,16 +117,16 @@ class OperationalPolicyYamlFormatter {
             Policy policyObj;
             if (policyItemList.indexOf(policyItem) == 0) {
                 String policyDescription = policyItem.getRecipe()
-                        + " Policy - the trigger (no parent) policy - created by CLDS";
+                    + " Policy - the trigger (no parent) policy - created by CLDS";
                 policyObj = builder.setTriggerPolicy(policyName, policyDescription, actor, target,
-                        policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit());
+                    policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit());
             } else {
                 Policy parentPolicyObj = policyObjMap.get(policyItem.getParentPolicy());
                 String policyDescription = policyItem.getRecipe() + " Policy - triggered conditionally by "
-                        + parentPolicyObj.getName() + " - created by CLDS";
+                    + parentPolicyObj.getName() + " - created by CLDS";
                 policyObj = builder.setPolicyForPolicyResult(policyName, policyDescription, actor, target,
-                        policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit(),
-                        parentPolicyObj.getId(), convertToPolicyResults(policyItem.getParentPolicyConditions()));
+                    policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit(),
+                    parentPolicyObj.getId(), convertToPolicyResults(policyItem.getParentPolicyConditions()));
                 logger.info("policyObj.id=" + policyObj.getId() + "; parentPolicyObj.id=" + parentPolicyObj.getId());
             }
             policyObjMap.put(policyItem.getId(), policyObj);
@@ -107,7 +137,7 @@ class OperationalPolicyYamlFormatter {
         return URLEncoder.encode(results.getSpecification(), "UTF-8");
     }
 
-    private List<PolicyItem> orderParentFirst(List<PolicyItem> inOrigList) {
+    protected static List<PolicyItem> orderParentFirst(List<PolicyItem> inOrigList) {
         List<PolicyItem> inList = new ArrayList<>();
         inList.addAll(inOrigList);
         List<PolicyItem> outList = new ArrayList<>();
@@ -129,7 +159,7 @@ class OperationalPolicyYamlFormatter {
                 if (parent == null || parent.length() == 0) {
                     if (!outList.isEmpty()) {
                         throw new BadRequestException(
-                                "Operation Policy validation problem: more than one trigger policy");
+                            "Operation Policy validation problem: more than one trigger policy");
                     } else {
                         outList.add(inItem);
                         inListItr.remove();
@@ -151,7 +181,7 @@ class OperationalPolicyYamlFormatter {
         return outList;
     }
 
-    private void validate(Results results) {
+    protected static void validate(Results results) {
         if (results.isValid()) {
             logger.info("results.getSpecification()=" + results.getSpecification());
         } else {
@@ -167,14 +197,14 @@ class OperationalPolicyYamlFormatter {
     }
 
 
-    Resource[] convertToResources(List<String> stringList, ResourceType resourceType) {
+    protected static Resource[] convertToResources(List<String> stringList, ResourceType resourceType) {
         if (stringList == null || stringList.isEmpty()) {
             return new Resource[0];
         }
         return stringList.stream().map(stringElem -> new Resource(stringElem, resourceType)).toArray(Resource[]::new);
     }
 
-    PolicyResult[] convertToPolicyResults(List<String> prList) {
+    protected static PolicyResult[] convertToPolicyResults(List<String> prList) {
         if (prList == null || prList.isEmpty()) {
             return new PolicyResult[0];
         }
diff --git a/src/main/java/org/onap/clamp/clds/client/req/policy/PolicyClient.java b/src/main/java/org/onap/clamp/clds/client/req/policy/PolicyClient.java
index cc97a7ce..cd387b3c 100644
--- a/src/main/java/org/onap/clamp/clds/client/req/policy/PolicyClient.java
+++ b/src/main/java/org/onap/clamp/clds/client/req/policy/PolicyClient.java
@@ -18,7 +18,7 @@
  * limitations under the License.
  * ============LICENSE_END============================================
  * ===================================================================
- * 
+ *
  */
 
 package org.onap.clamp.clds.client.req.policy;
@@ -26,11 +26,8 @@ package org.onap.clamp.clds.client.req.policy;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.Date;
-import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
@@ -46,7 +43,6 @@ import org.onap.policy.api.ConfigRequestParameters;
 import org.onap.policy.api.DeletePolicyCondition;
 import org.onap.policy.api.DeletePolicyParameters;
 import org.onap.policy.api.PolicyChangeResponse;
-import org.onap.policy.api.PolicyConfig;
 import org.onap.policy.api.PolicyConfigException;
 import org.onap.policy.api.PolicyConfigType;
 import org.onap.policy.api.PolicyEngine;
@@ -95,7 +91,7 @@ public class PolicyClient {
      * @return The response message of policy
      */
     public String sendBrmsPolicy(Map<AttributeType, Map<String, String>> attributes, ModelProperties prop,
-            String policyRequestUuid) {
+        String policyRequestUuid) {
         PolicyParameters policyParameters = new PolicyParameters();
         // Set Policy Type(Mandatory)
         policyParameters.setPolicyConfigType(PolicyConfigType.BRMS_PARAM);
@@ -160,7 +156,7 @@ public class PolicyClient {
      * @return The answer from policy call
      */
     public String sendBasePolicyInOther(String configBody, String configPolicyName, ModelProperties prop,
-            String policyRequestUuid) {
+        String policyRequestUuid) {
         PolicyParameters policyParameters = new PolicyParameters();
         // Set Policy Type
         policyParameters.setPolicyConfigType(PolicyConfigType.Base);
@@ -181,7 +177,7 @@ public class PolicyClient {
 
     /**
      * Perform send of Microservice policy in OTHER type.
-     * 
+     *
      * @param configBody
      *            The config policy string body
      * @param prop
@@ -224,8 +220,7 @@ public class PolicyClient {
         String responseMessage = "";
         Date startTime = new Date();
         try {
-            List<Integer> versions = getVersions(policyNamePrefix, prop);
-            if (versions.isEmpty()) {
+            if (!checkPolicyExists(policyNamePrefix, prop)) {
                 LoggingUtils.setTargetContext("Policy", "createPolicy");
                 logger.info("Attempting to create policy for action=" + prop.getActionCd());
                 response = getPolicyEngine().createPolicy(policyParameters);
@@ -313,8 +308,8 @@ public class PolicyClient {
     }
 
     /**
-     * Use Get Config Policy API to retrieve the versions for a policy. Return
-     * versions in sorted order. Return empty list if none found.
+     * Use list Policy API to retrieve the policy. Return true if policy exists
+     * otherwise return false.
      *
      * @param policyNamePrefix
      *            The Policy Name Prefix
@@ -324,8 +319,8 @@ public class PolicyClient {
      * @throws PolicyConfigException
      *             In case of issues with policy engine
      */
-    protected List<Integer> getVersions(String policyNamePrefix, ModelProperties prop) throws PolicyConfigException {
-        ArrayList<Integer> versions = new ArrayList<>();
+    protected boolean checkPolicyExists(String policyNamePrefix, ModelProperties prop) throws PolicyConfigException {
+        boolean policyexists = false;
         ConfigRequestParameters configRequestParameters = new ConfigRequestParameters();
         String policyName = "";
         if (prop.getPolicyUniqueId() != null && !prop.getPolicyUniqueId().isEmpty()) {
@@ -336,27 +331,20 @@ public class PolicyClient {
         logger.info("Search in Policy Engine for policyName=" + policyName);
         configRequestParameters.setPolicyName(policyName);
         try {
-            Collection<PolicyConfig> response = getPolicyEngine().getConfig(configRequestParameters);
-            for (PolicyConfig policyConfig : response) {
-                if (policyConfig.getPolicyVersion() != null) {
-                    Integer version = Integer.valueOf(policyConfig.getPolicyVersion());
-                    versions.add(version);
-                } else {
-                    logger.warn("Policy version was null, unable to convert it to Integer");
-                }
+            Collection<String> response = getPolicyEngine().listConfig(configRequestParameters);
+            if (response != null && !response.isEmpty()) {
+                policyexists = true;
             }
-            Collections.sort(versions);
-            logger.info("Policy versions.size()=" + versions.size());
         } catch (PolicyConfigException e) {
             // just print warning - if no policy version found
             logger.warn("policy not found...policy name - " + policyName, e);
         }
-        return versions;
+        return policyexists;
     }
 
     /**
      * This method create a new policy engine.
-     * 
+     *
      * @return A new policy engine
      */
     private synchronized PolicyEngine getPolicyEngine() {
@@ -381,8 +369,7 @@ public class PolicyClient {
         String deletePolicyResponse = "";
         try {
             String policyNamePrefix = refProp.getStringValue(POLICY_MS_NAME_PREFIX_PROPERTY_NAME);
-            List<Integer> versions = getVersions(policyNamePrefix, prop);
-            if (!versions.isEmpty()) {
+            if (checkPolicyExists(policyNamePrefix, prop)) {
                 String policyType = refProp.getStringValue(POLICY_MSTYPE_PROPERTY_NAME);
                 deletePolicyResponse = deletePolicy(prop, policyType);
             }
@@ -415,8 +402,7 @@ public class PolicyClient {
         String deletePolicyResponse = "";
         try {
             String policyNamePrefix = refProp.getStringValue(POLICY_OP_NAME_PREFIX_PROPERTY_NAME);
-            List<Integer> versions = getVersions(policyNamePrefix, prop);
-            if (!versions.isEmpty()) {
+            if (checkPolicyExists(policyNamePrefix, prop)) {
                 String policyType = refProp.getStringValue(POLICY_OP_TYPE_PROPERTY_NAME);
                 deletePolicyResponse = deletePolicy(prop, policyType);
             }
diff --git a/src/main/java/org/onap/clamp/clds/model/properties/PolicyItem.java b/src/main/java/org/onap/clamp/clds/model/properties/PolicyItem.java
index 6e3e8659..7caba41f 100644
--- a/src/main/java/org/onap/clamp/clds/model/properties/PolicyItem.java
+++ b/src/main/java/org/onap/clamp/clds/model/properties/PolicyItem.java
@@ -66,6 +66,7 @@ public class PolicyItem implements Cloneable {
     private String targetResourceId;
     private String recipeInfo;
     private String recipeLevel;
+    private String recipeInput;
     private Map<String, String> recipePayload;
     private String oapRop;
     private String oapLimit;
@@ -76,7 +77,7 @@ public class PolicyItem implements Cloneable {
      * @param node
      * @throws IOException
      */
-    public PolicyItem(JsonNode node) throws  IOException {
+    public PolicyItem(JsonNode node) throws IOException {
         id = AbstractModelElement.getValueByName(node, "_id");
         recipe = AbstractModelElement.getValueByName(node, "recipe");
         maxRetries = AbstractModelElement.getIntValueByName(node, "maxRetries");
@@ -89,11 +90,10 @@ public class PolicyItem implements Cloneable {
         }
         recipeInfo = AbstractModelElement.getValueByName(node, "recipeInfo");
         recipeLevel = AbstractModelElement.getValueByName(node, "recipeLevel");
-        String payload = AbstractModelElement.getValueByName(node, "recipeInput");
-
+        recipeInput = AbstractModelElement.getValueByName(node, "recipeInput");
+        String payload = AbstractModelElement.getValueByName(node, "recipePayload");
 
         if (payload != null && !payload.isEmpty()) {
-            //recipePayload = JacksonUtils.getObjectMapperInstance().convertValue(payload, Map.class);
             recipePayload = JacksonUtils.getObjectMapperInstance().readValue(payload, new TypeReference<Map<String, String>>(){});
         }
         oapRop = AbstractModelElement.getValueByName(node, "oapRop");
@@ -215,6 +215,10 @@ public class PolicyItem implements Cloneable {
         return recipeLevel;
     }
 
+    public String getRecipeInput() {
+        return recipeInput;
+    }
+
     public Map<String, String> getRecipePayload() {
         return recipePayload;
     }