Set this class as serializable

Fixing sonar critical to make this simple class serializable.

Issue-ID: POLICY-115
Change-Id: I6a3cf8b1c8c27f434e26d9f2909b2ef38c72825b
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

2 files changed, 22 insertions, 25 deletions

diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
index d35726a64..0ec0098a1 100644
--- a/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/PIPEngineGetHistory.java
@@ -190,23 +190,25 @@ public class PIPEngineGetHistory extends StdConfigurableEngine{
 
 		try {
 			pipResponse	= pipFinder.getMatchingAttributes(pipRequest, this);
-			if (pipResponse != null) {
-				if (pipResponse.getStatus() != null && !pipResponse.getStatus().isOk()) {
-					logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus().toString());
-					pipResponse	= null;
-				}
-				if (pipResponse.getAttributes() != null && pipResponse.getAttributes().isEmpty()) {
-					logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus().toString());
-					logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus());
-					pipResponse	= null;
-				}
-				if (pipResponse.getAttributes() != null && pipResponse.getAttributes().isEmpty()) {
-					logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus());
-					pipResponse	= null;
-				}
-			}
 		} catch (PIPException ex) {
 			logger.error("getAttribute threw:", ex);
+			return null;
+		}
+		if (pipResponse == null) {
+			return null;
+		}
+		if (pipResponse.getStatus() != null && !pipResponse.getStatus().isOk()) {
+			logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus().toString());
+			return null;
+		}
+		if (pipResponse.getAttributes() != null && pipResponse.getAttributes().isEmpty()) {
+			logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus().toString());
+			logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus());
+			return null;
+		}
+		if (pipResponse.getAttributes() != null && pipResponse.getAttributes().isEmpty()) {
+			logger.warn("Error retrieving {}: {}", pipRequest.getAttributeId().stringValue(), pipResponse.getStatus());
+			return null;
 		}
 		return pipResponse;
 	}
@@ -312,6 +314,7 @@ public class PIPEngineGetHistory extends StdConfigurableEngine{
 		}catch(Exception ex){
 			logger.error("PIP thread got Exception. Can't connect to Operations History DB -- {}", OpsHistPU);
 			logger.error("getCountFromDB threw: ", ex);
+			return 0;
 		}
 
 		DateUtil dateUtil = new DateUtil(){
diff --git a/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java b/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java
index 6018c2cab..b594aff0a 100644
--- a/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java
+++ b/controlloop/common/guard/src/main/java/org/onap/policy/guard/Util.java
@@ -24,19 +24,17 @@ import static org.junit.Assert.fail;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 
 import org.apache.commons.io.IOUtils;
-import org.yaml.snakeyaml.Yaml;
-import org.yaml.snakeyaml.constructor.Constructor;
-
 import org.onap.policy.controlloop.policy.ControlLoopPolicy;
 import org.onap.policy.controlloop.policy.guard.ControlLoopGuard;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.constructor.Constructor;
 
 public final class Util {
 
@@ -60,14 +58,11 @@ public final class Util {
 			Yaml yaml = new Yaml(new Constructor(ControlLoopPolicy.class));
 			Object obj = yaml.load(contents);
 			
-			//String ttt = ((ControlLoopPolicy)obj).policies.getFirst().payload.get("asdas");
 			logger.debug(contents);
-			//for(Policy policy : ((ControlLoopPolicy)obj).policies){
 			
 			return new Pair<ControlLoopPolicy, String>((ControlLoopPolicy) obj, contents);
-		} catch (FileNotFoundException e) {
-			fail(e.getLocalizedMessage());
 		} catch (IOException e) {
+			logger.error(e.getLocalizedMessage(), e);
 			fail(e.getLocalizedMessage());
 		}
 		return null;
@@ -82,9 +77,8 @@ public final class Util {
 			Yaml yaml = new Yaml(new Constructor(ControlLoopGuard.class));
 			Object obj = yaml.load(contents);
 			return (ControlLoopGuard) obj;
-		} catch (FileNotFoundException e) {
-			fail(e.getLocalizedMessage());
 		} catch (IOException e) {
+			logger.error(e.getLocalizedMessage(), e);
 			fail(e.getLocalizedMessage());
 		}
 		return null;