Fix SO Request body

- Renamed modelNameVersionId to modelVersionId in SOModelInfo
- Removed requestID from SO Request body
	- As a result of this, an SOResponseWrapper was needed in order to
	  attach the control loop event requestId to use in the SOResponse
	  rule in drl (the requestID that is returned in the SO response
	  is a newly generated requestId with no relation to the Policy
	  control loop event requestId as per Arthur)
	- Updated drl to reflect the above mentioned change
- Updated simulator and junits to reflect changes
- Added an additional null httpResponse check/logger statement in SOManager and RestManager

Issue-ID: POLICY-438
Change-Id: I5f414ba69b60b5565cca9073b47f4c4835e5abbf
Signed-off-by: Hockla, Ali (ah999m) <ah999m@att.com>

1 files changed, 13 insertions, 11 deletions

diff --git a/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java b/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java
index 9ea480981..e2d140c03 100644
--- a/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java
+++ b/controlloop/common/model-impl/rest/src/main/java/org/onap/policy/rest/RESTManager.java
@@ -79,19 +79,21 @@ public final class RESTManager {
 			post.setEntity(input);
 			
 			HttpResponse response = client.execute(post);
-			
-			String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
-			logger.debug("HTTP POST Response Status Code: {}", response.getStatusLine().getStatusCode());
-			logger.debug("HTTP POST Response Body:");
-			logger.debug(returnBody);
-
-			return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
-		} catch (IOException e) {
+			if (response != null) {
+				String returnBody = EntityUtils.toString(response.getEntity(), "UTF-8");
+				logger.debug("HTTP POST Response Status Code: {}", response.getStatusLine().getStatusCode());
+				logger.debug("HTTP POST Response Body:");
+				logger.debug(returnBody);
+				
+				return new Pair<Integer, String>(response.getStatusLine().getStatusCode(), returnBody);
+			} else {
+				logger.error("Response from {} is null", url);
+				return null;
+			}
+		} catch (Exception e) {
 			logger.error("Failed to POST to {}",url,e);
-
 			return null;
-		}
-		
+		} 
 	}
 
 	public static Pair<Integer, String> get(String url, String username, String password, Map<String, String> headers) {