Improve logs in Policy methods.

Add info to the logs of the methods calling policy.

Issue-ID: CLAMP-85
Change-Id: I6213b380ba66a93be3a0c06d62781b1e4934544b
Signed-off-by: Determe, Sebastien (sd378r) <sd378r@intl.att.com>
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 2e2169f..b4cad94 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
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP CLAMP
  * ================================================================================
- * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights
  *                             reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -62,18 +62,18 @@
  * Policy utility methods - specifically, send the policy.
  */
 public class PolicyClient {
-    protected static final String POLICY_PREFIX_BASE = "Config_";
-    protected static final String LOG_POLICY_PREFIX = "Response is ";
+    protected static final String     POLICY_PREFIX_BASE            = "Config_";
+    protected static final String     LOG_POLICY_PREFIX             = "Response is ";
     protected static final EELFLogger logger = EELFManager.getInstance().getLogger(PolicyClient.class);
-    protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
-    protected static final String POLICY_MSTYPE_PROPERTY_NAME = "policy.ms.type";
-    protected static final String POLICY_ONAPNAME_PROPERTY_NAME = "policy.onap.name";
+    protected static final EELFLogger metricsLogger                 = EELFManager.getInstance().getMetricsLogger();
+    protected static final String     POLICY_MSTYPE_PROPERTY_NAME   = "policy.ms.type";
+    protected static final String     POLICY_ONAPNAME_PROPERTY_NAME = "policy.onap.name";
     @Value("${org.onap.clamp.config.files.cldsPolicyConfig:'classpath:/clds/clds-policy-config.properties'}")
-    protected String cldsPolicyConfigFile;
+    protected String                  cldsPolicyConfigFile;
     @Autowired
-    protected ApplicationContext appContext;
+    protected ApplicationContext      appContext;
     @Autowired
-    protected RefProp refProp;
+    protected RefProp                 refProp;
 
     /**
      * Perform BRMS policy type.
@@ -229,15 +229,19 @@
                 responseMessage = response.getResponseMessage();
             }
         } catch (Exception e) {
+        	LoggingUtils.setResponseContext("900", "Policy send failed", this.getClass().getName());
+        	LoggingUtils.setErrorContext("900", "Policy send error");
             logger.error("Exception occurred during policy communication", e);
             throw new PolicyClientException("Exception while communicating with Policy", e);
         }
         logger.info(LOG_POLICY_PREFIX + responseMessage);
         LoggingUtils.setTimeContext(startTime, new Date());
         if (response.getResponseCode() == 200) {
+        	LoggingUtils.setResponseContext("0", "Policy send success", this.getClass().getName());
             logger.info("Policy send successful");
             metricsLogger.info("Policy send success");
         } else {
+        	LoggingUtils.setResponseContext("900", "Policy send failed", this.getClass().getName());
             logger.warn("Policy send failed: " + responseMessage);
             metricsLogger.info("Policy send failure");
             throw new BadRequestException("Policy send failed: " + responseMessage);
@@ -274,20 +278,27 @@
         PolicyChangeResponse response;
         String responseMessage = "";
         try {
+        	LoggingUtils.setTargetContext("Policy", "pushPolicy");
             logger.info("Attempting to push policy...");
             response = getPolicyEngine().pushPolicy(pushPolicyParameters);
             if (response != null) {
                 responseMessage = response.getResponseMessage();
             }
         } catch (Exception e) {
+        	LoggingUtils.setResponseContext("900", "Policy push failed", this.getClass().getName());
+            LoggingUtils.setErrorContext("900", "Policy push error");
             logger.error("Exception occurred during policy communication", e);
             throw new PolicyClientException("Exception while communicating with Policy", e);
         }
         logger.info(LOG_POLICY_PREFIX + responseMessage);
         if (response != null && (response.getResponseCode() == 200 || response.getResponseCode() == 204)) {
+        	LoggingUtils.setResponseContext("0", "Policy push success", this.getClass().getName());
             logger.info("Policy push successful");
+            metricsLogger.info("Policy push success");
         } else {
+        	LoggingUtils.setResponseContext("900", "Policy push failed", this.getClass().getName());
             logger.warn("Policy push failed: " + responseMessage);
+            metricsLogger.info("Policy push failure");
             throw new BadRequestException("Policy push failed: " + responseMessage);
         }
         return responseMessage;
@@ -331,6 +342,11 @@
         return versions;
     }
 
+    /**
+     * This method create a new policy engine.
+     * 
+     * @return A new policy engine
+     */
     private PolicyEngine getPolicyEngine() {
         PolicyEngine policyEngine;
         try {
@@ -383,6 +399,7 @@
      *
      * @param prop
      *            The ModelProperties
+     *
      * @return The response message from policy
      */
     protected String deletePolicy(ModelProperties prop, String policyType) {