Removed MsoLogger from 'mso-api-handlers'

Replaced MsoLogger with plain slf4j.
Refactored login output.
Fixed imports.

Change-Id: Id0f1e0dda34038d8dbf6894e5d4e6923dc3a8440
Issue-ID: LOG-631
Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>

22 files changed, 214 insertions, 145 deletions

diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandler/recipe/CamundaClientErrorHandler.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandler/recipe/CamundaClientErrorHandler.java
index d801a94c9b..74d5f7a9e6 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandler/recipe/CamundaClientErrorHandler.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandler/recipe/CamundaClientErrorHandler.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -22,7 +24,8 @@ package org.onap.so.apihandler.recipe;
 
 import java.io.IOException;
 
-import org.onap.so.logger.MsoLogger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.web.client.ResponseErrorHandler;
@@ -31,15 +34,12 @@ import org.springframework.web.client.ResponseErrorHandler;
 
 public class CamundaClientErrorHandler implements ResponseErrorHandler{
 	
-	 private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, CamundaClientErrorHandler.class);
+	 private static Logger logger = LoggerFactory.getLogger(CamundaClientErrorHandler.class);
 	
 	  @Override
 	  public void handleError(ClientHttpResponse response) throws IOException {
-		    
-			msoLogger.debug(response.getBody().toString());
-			//msoLogger.recordMetricEvent(startTime, MsoLogger.StatusCode.ERROR,
-		//			MsoLogger.ResponseCode.CommunicationError, e.getMessage(), "BPMN", fullURL, null);
-	  }
+			logger.debug(response.getBody().toString());
+		}
 
 	  @Override
 	  public boolean hasError(ClientHttpResponse response) throws IOException {
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/GlobalHealthcheckHandler.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/GlobalHealthcheckHandler.java
index 862e9a668f..b002aa9f54 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/GlobalHealthcheckHandler.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/GlobalHealthcheckHandler.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -23,6 +25,9 @@ package org.onap.so.apihandlerinfra;
 
 import java.net.URI;
 import java.util.Collections;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 
@@ -38,13 +43,10 @@ import javax.ws.rs.core.Context;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.UriBuilder;
 
-import java.util.UUID;
 import org.apache.http.HttpStatus;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.core.env.Environment;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
@@ -59,16 +61,16 @@ import io.swagger.annotations.ApiOperation;
 @Path("/globalhealthcheck")
 @Api(value="/globalhealthcheck",description="APIH Infra Global Health Check")
 public class GlobalHealthcheckHandler {
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, GlobalHealthcheckHandler.class);
-    private static final String CONTEXTPATH_PROPERTY = "management.context-path";    
-    private static final String PROPERTY_DOMAIN	 = "mso.health.endpoints";    
-    private static final String CATALOGDB_PROPERTY = PROPERTY_DOMAIN+".catalogdb";
-	private static final String REQUESTDB_PROPERTY = PROPERTY_DOMAIN+".requestdb";
-	private static final String SDNC_PROPERTY = PROPERTY_DOMAIN+".sdnc";
-	private static final String OPENSTACK_PROPERTY = PROPERTY_DOMAIN+".openstack";
-	private static final String BPMN_PROPERTY = PROPERTY_DOMAIN+".bpmn";
-	private static final String ASDC_PROPERTY = PROPERTY_DOMAIN+".asdc";
-	private static final String REQUESTDBATTSVC_PROPERTY = PROPERTY_DOMAIN+".requestdbattsvc";
+	private static Logger logger = LoggerFactory.getLogger(GlobalHealthcheckHandler.class);
+	private static final String CONTEXTPATH_PROPERTY = "management.context-path";
+	private static final String PROPERTY_DOMAIN = "mso.health.endpoints";
+	private static final String CATALOGDB_PROPERTY = PROPERTY_DOMAIN + ".catalogdb";
+	private static final String REQUESTDB_PROPERTY = PROPERTY_DOMAIN + ".requestdb";
+	private static final String SDNC_PROPERTY = PROPERTY_DOMAIN + ".sdnc";
+	private static final String OPENSTACK_PROPERTY = PROPERTY_DOMAIN + ".openstack";
+	private static final String BPMN_PROPERTY = PROPERTY_DOMAIN + ".bpmn";
+	private static final String ASDC_PROPERTY = PROPERTY_DOMAIN + ".asdc";
+	private static final String REQUESTDBATTSVC_PROPERTY = PROPERTY_DOMAIN + ".requestdbattsvc";
 	private static final String DEFAULT_PROPERTY_VALUE = "";
 	
     // e.g. /manage
@@ -117,7 +119,7 @@ public class GlobalHealthcheckHandler {
             // Generated RequestId
             String requestId = requestContext.getProperty("requestId").toString();
             MsoLogger.setLogContext(requestId, null);
-            msoLogger.info(MessageEnum.APIH_GENERATED_REQUEST_ID, requestId, "", "");
+            logger.info("{} {}", MessageEnum.APIH_GENERATED_REQUEST_ID.toString(), requestId);
             
             // set APIH status, this is the main entry point
             rsp.setApih(HealthcheckStatus.UP.toString());
@@ -137,14 +139,14 @@ public class GlobalHealthcheckHandler {
             rsp.setRequestdbAdapterAttsvc(querySubsystemHealth(MsoSubsystems.REQUESTDBATT));
             // set Message
             rsp.setMessage(String.format("HttpStatus: %s", HttpStatus.SC_OK));
-            msoLogger.info(rsp.toString(), "", "");
+            logger.info(rsp.toString());
 
             HEALTH_CHECK_RESPONSE = Response.status (HttpStatus.SC_OK)
                     .entity (rsp)
                     .build ();
             
     	}catch (Exception ex){
-    		msoLogger.error(ex);
+    		logger.error("Exception occurred", ex);
     		rsp.setMessage(ex.getMessage());
             HEALTH_CHECK_RESPONSE = Response.status (HttpStatus.SC_INTERNAL_SERVER_ERROR)
                     .entity (rsp)
@@ -170,7 +172,7 @@ public class GlobalHealthcheckHandler {
         	// build final endpoint url
 			UriBuilder builder = UriBuilder.fromPath(ept).path(actuatorContextPath).path(health);
 			URI uri = builder.build();
-        	msoLogger.info("Calculated URL: "+uri.toString(), "", "");        	
+        	logger.info("Calculated URL: {}", uri.toString());
             
             ResponseEntity<SubsystemHealthcheckResponse> result = 
             		restTemplate.exchange(uri, HttpMethod.GET, buildHttpEntityForRequest(), SubsystemHealthcheckResponse.class);
@@ -178,13 +180,13 @@ public class GlobalHealthcheckHandler {
     		return processResponseFromSubsystem(result,subsystem);
     		
     	}catch(Exception ex){
-			msoLogger.error("Exception occured in GlobalHealthcheckHandler.querySubsystemHealth() "+ ex);
+			logger.error("Exception occured in GlobalHealthcheckHandler.querySubsystemHealth() ", ex);
     		return HealthcheckStatus.DOWN.toString();
     	}
     }
 	protected String processResponseFromSubsystem(ResponseEntity<SubsystemHealthcheckResponse> result, MsoSubsystems subsystem){
         if(result == null || result.getStatusCodeValue() != HttpStatus.SC_OK){
-        	msoLogger.error(String.format("Globalhealthcheck: checking subsystem: %s failed ! result object is: %s", 
+        	logger.error(String.format("Globalhealthcheck: checking subsystem: %s failed ! result object is: %s",
         			subsystem,
         			result == null? "NULL": result));
         	return HealthcheckStatus.DOWN.toString();
@@ -196,7 +198,7 @@ public class GlobalHealthcheckHandler {
 		if("UP".equalsIgnoreCase(status)){
 			return HealthcheckStatus.UP.toString();
 		}else{
-			msoLogger.error(subsystem + ", query health endpoint did not return UP status!");
+			logger.error("{}, query health endpoint did not return UP status!", subsystem);
 			return HealthcheckStatus.DOWN.toString();
 		}
 	}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ManualTasks.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ManualTasks.java
index 81a197c85c..d686e80352 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ManualTasks.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ManualTasks.java
@@ -5,6 +5,8 @@
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -55,6 +57,8 @@ import org.onap.so.exceptions.ValidationException;
 import org.onap.so.logger.MessageEnum;
 
 import org.onap.so.logger.MsoLogger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -68,7 +72,7 @@ import io.swagger.annotations.ApiOperation;
 @Path("/tasks")
 @Component
 public class ManualTasks {
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, ManualTasks.class);
+	private static Logger logger = LoggerFactory.getLogger(ManualTasks.class);
 
 	
 	@org.springframework.beans.factory.annotation.Value("${mso.camunda.rest.task.uri}")
@@ -94,9 +98,9 @@ public class ManualTasks {
 		
 		String requestId = requestContext.getProperty("requestId").toString();
         MsoLogger.setLogContext(requestId, null);
-        msoLogger.info(MessageEnum.APIH_GENERATED_REQUEST_ID, requestId, "", "");
+        logger.info("{} {}", MessageEnum.APIH_GENERATED_REQUEST_ID.toString(), requestId);
 		long startTime = System.currentTimeMillis ();
-		msoLogger.debug ("requestId is: " + requestId);
+		logger.debug ("requestId is: {}", requestId);
 		TasksRequest taskRequest = null;
 		String apiVersion = version.substring(1);
 		
@@ -203,9 +207,7 @@ public class ManualTasks {
 
 		// BPEL accepted the request, the request is in progress
 		if (bpelStatus == HttpStatus.SC_NO_CONTENT || bpelStatus == HttpStatus.SC_ACCEPTED) {			
-			msoLogger.debug ("Received good response from Camunda");
-		
-			msoLogger.recordAuditEvent (startTime, MsoLogger.StatusCode.COMPLETE, MsoLogger.ResponseCode.Suc, "BPMN completed the request");
+			logger.debug ("Received good response from Camunda");
 			TaskRequestReference trr = new TaskRequestReference();
 			trr.setTaskId(taskId);
 			String completeResp = null;
@@ -224,8 +226,8 @@ public class ManualTasks {
 
                 throw validateException;
 			}
-			msoLogger.debug("Response to the caller: " + completeResp);			
-			msoLogger.debug ("End of the transaction, the final response is: " + (String) completeResp);
+			logger.debug("Response to the caller: {}", completeResp);
+			logger.debug ("End of the transaction, the final response is: {}", completeResp);
 			return builder.buildResponse(HttpStatus.SC_ACCEPTED, requestId, completeResp, apiVersion);
 		} else {
             ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, MsoLogger.ErrorCode.BusinessProcesssError).build();
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/MsoRequest.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/MsoRequest.java
index 7f602323e1..411a5e584a 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/MsoRequest.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/MsoRequest.java
@@ -5,6 +5,8 @@
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -66,7 +68,6 @@ import org.onap.so.apihandlerinfra.vnfbeans.VnfInputs;
 import org.onap.so.apihandlerinfra.vnfbeans.VnfRequest;
 import org.onap.so.db.request.beans.InfraActiveRequests;
 import org.onap.so.db.request.client.RequestsDbClient;
-import org.onap.so.db.request.data.repository.InfraActiveRequestsRepository;
 import org.onap.so.exceptions.ValidationException;
 import org.onap.so.logger.LogConstants;
 import org.onap.so.logger.MessageEnum;
@@ -84,6 +85,8 @@ import org.onap.so.serviceinstancebeans.RequestParameters;
 import org.onap.so.serviceinstancebeans.Service;
 import org.onap.so.serviceinstancebeans.ServiceException;
 import org.onap.so.serviceinstancebeans.ServiceInstancesRequest;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.slf4j.MDC;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
@@ -107,7 +110,7 @@ public class MsoRequest {
 	@Autowired
 	private ResponseBuilder builder;
     
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH,MsoRequest.class);
+    private static Logger logger = LoggerFactory.getLogger(MsoRequest.class);
     
     public Response buildServiceErrorResponse (int httpResponseCode, MsoException exceptionType, 
     		String errorText, String messageId, List<String> variables, String version) {
@@ -150,8 +153,9 @@ public class MsoRequest {
         	mapper.setSerializationInclusion(Include.NON_DEFAULT);
         	requestErrorStr = mapper.writeValueAsString(re);
         }catch(Exception e){
-        	msoLogger.error (MessageEnum.APIH_VALIDATION_ERROR, "", "", MsoLogger.ErrorCode.DataError, "Exception in buildServiceErrorResponse writing exceptionType to string ", e);
-        }
+					logger.error("{} {} {}", MessageEnum.APIH_VALIDATION_ERROR.toString(), MsoLogger.ErrorCode.DataError.getValue(),
+							"Exception in buildServiceErrorResponse writing exceptionType to string ", e);
+				}
 
         return builder.buildResponse(httpResponseCode, null, requestErrorStr, version);
     }
@@ -162,9 +166,9 @@ public class MsoRequest {
     public void parse (ServiceInstancesRequest sir, HashMap<String,String> instanceIdMap, Actions action, String version,
     		String originalRequestJSON, int reqVersion, Boolean aLaCarteFlag) throws ValidationException, IOException {
     	
-        msoLogger.debug ("Validating the Service Instance request");
+        logger.debug ("Validating the Service Instance request");
         List<ValidationRule> rules = new ArrayList<>();
-        msoLogger.debug ("Incoming version is: " + version + " coverting to int: " + reqVersion);
+        logger.debug ("Incoming version is: {} coverting to int: {}", version, reqVersion);
 	    RequestParameters requestParameters = sir.getRequestDetails().getRequestParameters();
         ValidationInformation info = new ValidationInformation(sir, instanceIdMap, action,
         		reqVersion, aLaCarteFlag, requestParameters);
@@ -249,9 +253,7 @@ public class MsoRequest {
           	  }
 
             }catch(Exception e){
-                //msoLogger.error (MessageEnum.APIH_VALIDATION_ERROR, e);
                 throw new ValidationException ("QueryParam ServiceInfo", e);
-
         	}
 
         }
@@ -382,9 +384,10 @@ public class MsoRequest {
             aq.setRequestStatus (status.toString ());
             aq.setLastModifiedBy (Constants.MODIFIED_BY_APIHANDLER);           
         } catch (Exception e) {
-        	msoLogger.error (MessageEnum.APIH_DB_INSERT_EXC, "", "", MsoLogger.ErrorCode.DataError, "Exception when creation record request", e);
-        
-            if (!status.equals (Status.FAILED)) {
+					logger.error("{} {} {}", MessageEnum.APIH_DB_INSERT_EXC.toString(), MsoLogger.ErrorCode.DataError.getValue(),
+						"Exception when creation record request", e);
+
+					if (!status.equals (Status.FAILED)) {
                 throw e;
             }
         }
@@ -421,9 +424,10 @@ public class MsoRequest {
            aq.setLastModifiedBy (Constants.MODIFIED_BY_APIHANDLER);
                   
        } catch (Exception e) {
-       	msoLogger.error (MessageEnum.APIH_DB_INSERT_EXC, "", "", MsoLogger.ErrorCode.DataError, "Exception when creation record request", e);
-       
-           if (!status.equals (Status.FAILED)) {
+				 logger.error("{} {} {}", MessageEnum.APIH_DB_INSERT_EXC.toString(), MsoLogger.ErrorCode.DataError.getValue(),
+					 "Exception when creation record request", e);
+
+				 if (!status.equals (Status.FAILED)) {
                throw e;
            }
        }
@@ -447,9 +451,10 @@ public class MsoRequest {
             request.setRequestUrl(MDC.get(LogConstants.HTTP_URL));            
 			requestsDbClient.save(request);
         } catch (Exception e) {
-        	msoLogger.error(MessageEnum.APIH_DB_UPDATE_EXC, e.getMessage(), "", "", MsoLogger.ErrorCode.DataError, "Exception when updating record in DB");
-            msoLogger.debug ("Exception: ", e);
-        }
+					logger.error("{} {} {} {}", MessageEnum.APIH_DB_UPDATE_EXC.toString(), e.getMessage(),
+						MsoLogger.ErrorCode.DataError.getValue(), "Exception when updating record in DB");
+					logger.debug("Exception: ", e);
+				}
     }
     
     
@@ -531,8 +536,9 @@ public class MsoRequest {
             return null;
 
         } catch (Exception e) {
-            msoLogger.error (MessageEnum.APIH_DOM2STR_ERROR, "", "", MsoLogger.ErrorCode.DataError, "Exception in domToStr", e);
-        }
+					logger.error("{} {} {}", MessageEnum.APIH_DOM2STR_ERROR.toString(), MsoLogger.ErrorCode.DataError.getValue(),
+						"Exception in domToStr", e);
+				}
         return null;
     }
 
@@ -556,12 +562,12 @@ public class MsoRequest {
     	ObjectMapper mapper = new ObjectMapper();
     	mapper.setSerializationInclusion(Include.NON_NULL);
     	//mapper.configure(Feature.WRAP_ROOT_VALUE, true);
-    	msoLogger.debug ("building sir from object " + sir);
+    	logger.debug ("building sir from object {}", sir);
     	String requestJSON = mapper.writeValueAsString(sir);
     	
     	// Perform mapping from VID-style modelInfo fields to ASDC-style modelInfo fields
     	
-    	msoLogger.debug("REQUEST JSON before mapping: " + requestJSON);
+    	logger.debug("REQUEST JSON before mapping: {}", requestJSON);
     	// modelUuid = modelVersionId
     	requestJSON = requestJSON.replaceAll("\"modelVersionId\":","\"modelUuid\":");
     	// modelCustomizationUuid = modelCustomizationId
@@ -570,7 +576,7 @@ public class MsoRequest {
     	requestJSON = requestJSON.replaceAll("\"modelCustomizationName\":","\"modelInstanceName\":");
     	// modelInvariantUuid = modelInvariantId 
     	requestJSON = requestJSON.replaceAll("\"modelInvariantId\":","\"modelInvariantUuid\":");    	
-    	msoLogger.debug("REQUEST JSON after mapping: " + requestJSON);
+    	logger.debug("REQUEST JSON after mapping: {}", requestJSON);
     	
     	return requestJSON;
     }
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/NodeHealthcheckHandler.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/NodeHealthcheckHandler.java
index 35f196b263..cb458a7420 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/NodeHealthcheckHandler.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/NodeHealthcheckHandler.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -33,7 +35,8 @@ import javax.ws.rs.core.Response;
 import org.apache.http.HttpStatus;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
-import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 import io.swagger.annotations.Api;
@@ -44,7 +47,7 @@ import io.swagger.annotations.ApiOperation;
 @Component
 public class NodeHealthcheckHandler {
 
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, NodeHealthcheckHandler.class);
+    private static Logger logger = LoggerFactory.getLogger(NodeHealthcheckHandler.class);
     
     private static final String CHECK_HTML = "<!DOCTYPE html><html><head><meta charset=\"ISO-8859-1\"><title>Health Check</title></head><body>Application ready</body></html>";
 
@@ -61,8 +64,7 @@ public class NodeHealthcheckHandler {
         MsoLogger.setServiceName ("NodeHealthcheck");
         // Generated RequestId
         String requestId = requestContext.getProperty("requestId").toString();
-        MsoLogger.setLogContext(requestId, null);
-        msoLogger.info(MessageEnum.APIH_GENERATED_REQUEST_ID, requestId, "", "");
+        logger.info("{} {}", MessageEnum.APIH_GENERATED_REQUEST_ID.toString(), requestId);
         return HEALTH_CHECK_RESPONSE;
     }
 }
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/OrchestrationRequests.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/OrchestrationRequests.java
index b65b82a87d..d74a4de451 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/OrchestrationRequests.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/OrchestrationRequests.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -63,6 +65,8 @@ import org.onap.so.serviceinstancebeans.RequestDetails;
 import org.onap.so.serviceinstancebeans.RequestList;
 import org.onap.so.serviceinstancebeans.RequestStatus;
 import org.onap.so.serviceinstancebeans.ServiceInstancesRequest;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -76,7 +80,7 @@ import io.swagger.annotations.ApiOperation;
 @Component
 public class OrchestrationRequests {
 
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, OrchestrationRequests.class);
+    private static Logger logger = LoggerFactory.getLogger(OrchestrationRequests.class);
     
 
     @Autowired
@@ -106,7 +110,7 @@ public class OrchestrationRequests {
 	        requestProcessingData = requestsDbClient.getRequestProcessingDataBySoRequestId(requestId);
 
 		} catch (Exception e) {
-		    msoLogger.error(e);
+		    logger.error("Exception occurred", e);
 			ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_DB_ACCESS_EXC, MsoLogger.ErrorCode.AvailabilityError).build();
 
 
@@ -164,7 +168,7 @@ public class OrchestrationRequests {
 				throw new ValidationException("At least one filter query param must be specified");
 			}
 		}catch(ValidationException ex){
-		    msoLogger.error(ex);
+		    logger.error("Exception occurred", ex);
 			ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_REQUEST_VALIDATION_ERROR, MsoLogger.ErrorCode.DataError).build();
 			ValidateException validateException = new ValidateException.Builder(ex.getMessage(),
 					HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_GENERAL_SERVICE_ERROR).cause(ex).errorInfo(errorLoggerInfo).build();
@@ -202,7 +206,7 @@ public class OrchestrationRequests {
 	public Response unlockOrchestrationRequest(String requestJSON, @PathParam("requestId") String requestId, @PathParam("version") String version) throws ApiException{
 
 		long startTime = System.currentTimeMillis ();
-		msoLogger.debug ("requestId is: " + requestId);
+		logger.debug ("requestId is: {}", requestId);
 		ServiceInstancesRequest sir = null;
 
 		InfraActiveRequests infraActiveRequest = null;
@@ -212,7 +216,7 @@ public class OrchestrationRequests {
 			ObjectMapper mapper = new ObjectMapper();
 			sir = mapper.readValue(requestJSON, ServiceInstancesRequest.class);
 		} catch(IOException e){
-		    msoLogger.error(e);
+		    logger.error("Exception occurred", e);
             ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_REQUEST_VALIDATION_ERROR, MsoLogger.ErrorCode.SchemaError).build();
             ValidateException validateException = new ValidateException.Builder("Mapping of request to JSON object failed : " + e.getMessage(),
                     HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo).build();
@@ -223,7 +227,7 @@ public class OrchestrationRequests {
 		try{
 			msoRequest.parseOrchestration(sir);
 		} catch (Exception e) {
-		    msoLogger.error(e);
+		    logger.error("Exception occurred", e);
 			ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_REQUEST_VALIDATION_ERROR, MsoLogger.ErrorCode.SchemaError).build();
 			 ValidateException validateException = new ValidateException.Builder("Error parsing request: " + e.getMessage(), HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).cause(e)
 	                 .errorInfo(errorLoggerInfo).build();
@@ -319,7 +323,7 @@ public class OrchestrationRequests {
 				   requestDetails = mapper.readValue(requestBody, RequestDetails.class);
 			   }
 		   } catch (IOException e) {
-		       msoLogger.error(e);
+		       logger.error("Exception occurred", e);
 			   ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_REQUEST_VALIDATION_ERROR, MsoLogger.ErrorCode.SchemaError).build();
 			   ValidateException validateException = new ValidateException.Builder("Mapping of request to JSON object failed : ",
 					   HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo).build();
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ServiceInstances.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ServiceInstances.java
index a473b0939e..1f9f5f5fbe 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ServiceInstances.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/ServiceInstances.java
@@ -5,6 +5,8 @@
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -83,6 +85,8 @@ import org.onap.so.serviceinstancebeans.VfModules;
 import org.onap.so.serviceinstancebeans.Vnfs;
 import org.onap.so.utils.CryptoUtils;
 import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.slf4j.MDC;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.ParameterizedTypeReference;
@@ -126,7 +130,7 @@ import java.util.Optional;
 @Api(value="/onap/so/infra/serviceInstantiation",description="Infrastructure API Requests for Service Instances")
 public class ServiceInstances {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH,MsoRequest.class);
+	private static Logger logger = LoggerFactory.getLogger(MsoRequest.class);
 	private static String NAME = "name";
 	private static String VALUE = "value";
 	private static final String SAVE_TO_DB = "save instance to db";
@@ -893,7 +897,7 @@ public class ServiceInstances {
 		try {
 			validateHeaders(requestContext);
 		} catch (ValidationException e) {
-			msoLogger.error(e);
+			logger.error("Exception occurred", e);
             ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_VALIDATION_ERROR, MsoLogger.ErrorCode.SchemaError).errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
             ValidateException validateException = new ValidateException.Builder(e.getMessage(), HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).cause(e)
                         .errorInfo(errorLoggerInfo).build();
@@ -1016,7 +1020,7 @@ public class ServiceInstances {
             respHandler = new ResponseHandler (response, requestClient.getType ());
             bpelStatus = respHandler.getStatus ();
         } catch (ApiException e) {
-            msoLogger.error(e);
+            logger.error("Exception occurred", e);
             ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, MsoLogger.ErrorCode.SchemaError).errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
             ValidateException validateException = new ValidateException.Builder("Exception caught mapping Camunda JSON response to object", HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_BAD_PARAMETER).cause(e)
                         .errorInfo(errorLoggerInfo).build();
@@ -1041,7 +1045,7 @@ public class ServiceInstances {
 					    jsonResponse.getRequestReferences().setRequestSelfLink(null);
 					}    
 				} catch (IOException e) {
-					msoLogger.error(e);
+					logger.error("Exception occurred", e);
 					ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, MsoLogger.ErrorCode.SchemaError).errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
 					ValidateException validateException = new ValidateException.Builder("Exception caught mapping Camunda JSON response to object", HttpStatus.SC_NOT_ACCEPTABLE, ErrorNumbers.SVC_BAD_PARAMETER).cause(e)
 			                    .errorInfo(errorLoggerInfo).build();
@@ -1130,7 +1134,7 @@ public class ServiceInstances {
 		    	sir.getRequestDetails().setCloudConfiguration(serviceInstRequest.getRequestDetails().getCloudConfiguration());
 		    	sir.getRequestDetails().getRequestParameters().setUserParams(serviceInstRequest.getRequestDetails().getRequestParameters().getUserParams());
 	    	}
-	    	msoLogger.debug("Value as string: " + mapper.writeValueAsString(sir));
+	    	logger.debug("Value as string: {}", mapper.writeValueAsString(sir));
 	    	return mapper.writeValueAsString(sir);
     	}
     	return null;
@@ -1214,7 +1218,7 @@ public class ServiceInstances {
        			headers.add(HttpHeaders.AUTHORIZATION, "Basic " + DatatypeConverter.printBase64Binary(userCredentials.getBytes()));
        		}
         } catch(GeneralSecurityException e) {
-                msoLogger.error("Security exception", e);
+                logger.error("Security exception", e);
         }
 		return headers;
 	}
@@ -1453,7 +1457,7 @@ public class ServiceInstances {
 	}
 
 	protected List<Map<String, Object>> configureUserParams(RequestParameters reqParams) throws IOException {
-    	msoLogger.debug("Configuring UserParams for Macro Request");
+    	logger.debug("Configuring UserParams for Macro Request");
     	Map<String, Object> userParams = new HashMap<>();
     	
     	for(Map<String, Object> params : reqParams.getUserParams()){
@@ -1789,7 +1793,7 @@ public class ServiceInstances {
 			testApi = TestApi.valueOf(requestTestApi);
 			return Optional.of(testApi.getModelName());
 		} catch (Exception e) {
-			msoLogger.warnSimple("Catching the exception on the valueOf enum call and continuing", e);
+			logger.warn("Catching the exception on the valueOf enum call and continuing", e);
 			throw new IllegalArgumentException("Invalid TestApi is provided", e);
 		}
     }
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/TasksHandler.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/TasksHandler.java
index f9e6c276ec..0a72cf68ad 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/TasksHandler.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/TasksHandler.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -55,7 +57,8 @@ import org.onap.so.apihandlerinfra.tasksbeans.TasksGetResponse;
 import org.onap.so.logger.MessageEnum;
 
 import org.onap.so.logger.MsoLogger;
-import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
@@ -72,7 +75,7 @@ import io.swagger.annotations.ApiOperation;
 public class TasksHandler {
 
 
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH,TasksHandler.class);
+    private static Logger logger = LoggerFactory.getLogger(TasksHandler.class);
        
     @Value("${mso.camunda.rest.task.uri}")
     private String requestUrl;
@@ -95,14 +98,9 @@ public class TasksHandler {
                                   @QueryParam("originalRequestDate") String originalRequestDate,
                                   @QueryParam("originalRequestorId") String originalRequestorId,
                                   @PathParam("version") String version) throws ApiException {
-    	Response responseBack = null;
-
-        String requestId = UUIDChecker.generateUUID(msoLogger);
-        MsoLogger.setServiceName ("ManualTasksQuery");
-        // Generate a Request Id
-        UUIDChecker.generateUUID(msoLogger);
+   	Response responseBack = null;
 		String apiVersion = version.substring(1);
-        
+
         // Prepare the query string to /task interface
         TaskVariables tv = new TaskVariables();
         
@@ -229,13 +227,9 @@ public class TasksHandler {
 			throw validateException;
 		}
 		
-		return builder.buildResponse(HttpStatus.SC_ACCEPTED, requestId, jsonResponse, apiVersion);
+		return builder.buildResponse(HttpStatus.SC_ACCEPTED, "", jsonResponse, apiVersion);
     }    
 
-    protected MsoLogger getMsoLogger () {
-        return msoLogger;
-    }
-    
     // Makes a GET call to Camunda to get variables for this task
     private TaskList getTaskInfo(String taskId) throws ApiException{
     	TaskList taskList;
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudOrchestration.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudOrchestration.java
index d743c440e7..00f1d6889d 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudOrchestration.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudOrchestration.java
@@ -4,12 +4,14 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -24,6 +26,7 @@ package org.onap.so.apihandlerinfra.tenantisolation;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.util.HashMap;
+import java.util.UUID;
 
 import javax.inject.Provider;
 import javax.transaction.Transactional;
@@ -54,7 +57,8 @@ import org.onap.so.db.request.client.RequestsDbClient;
 import org.onap.so.exceptions.ValidationException;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
-import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -68,9 +72,9 @@ import io.swagger.annotations.ApiOperation;
 @Api(value="/onap/so/infra/cloudResources",description="API Requests for cloud resources - Tenant Isolation")
 public class CloudOrchestration {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, CloudOrchestration.class);
+	private static Logger logger = LoggerFactory.getLogger(CloudOrchestration.class);
 	private static final String ENVIRONMENT_ID_KEY = "operationalEnvironmentId";
-	
+
 	@Autowired
 	private TenantIsolationRequest tenantIsolationRequest ;
 
@@ -87,7 +91,7 @@ public class CloudOrchestration {
 	@ApiOperation(value="Create an Operational Environment",response=Response.class)
 	@Transactional
 	public Response createOperationEnvironment(String request, @PathParam("version") String version, @Context ContainerRequestContext requestContext) throws ApiException{
-		msoLogger.debug("Received request to Create Operational Environment");
+		logger.debug("Received request to Create Operational Environment");
 		return cloudOrchestration(request, Action.create, null, version, getRequestId(requestContext));
 	}
 
@@ -99,7 +103,7 @@ public class CloudOrchestration {
 	@Transactional
 	public Response activateOperationEnvironment(String request, @PathParam("version") String version, @PathParam("operationalEnvironmentId") String operationalEnvironmentId,
 												@Context ContainerRequestContext requestContext) throws ApiException{
-		msoLogger.debug("Received request to Activate an Operational Environment");
+		logger.debug("Received request to Activate an Operational Environment");
 		HashMap<String, String> instanceIdMap = new HashMap<>();
 		instanceIdMap.put(ENVIRONMENT_ID_KEY, operationalEnvironmentId);
 		return cloudOrchestration(request, Action.activate, instanceIdMap, version, getRequestId(requestContext));
@@ -112,7 +116,7 @@ public class CloudOrchestration {
 	@ApiOperation(value="Deactivate an Operational Environment",response=Response.class)
 	@Transactional
 	public Response deactivateOperationEnvironment(String request, @PathParam("version") String version, @PathParam("operationalEnvironmentId") String operationalEnvironmentId, @Context ContainerRequestContext requestContext) throws ApiException{
-		msoLogger.debug("Received request to Deactivate an Operational Environment");
+		logger.debug("Received request to Deactivate an Operational Environment");
 		HashMap<String, String> instanceIdMap = new HashMap<>();
 		instanceIdMap.put(ENVIRONMENT_ID_KEY, operationalEnvironmentId);
 		return cloudOrchestration(request, Action.deactivate, instanceIdMap, version, getRequestId(requestContext));
@@ -121,7 +125,7 @@ public class CloudOrchestration {
 
 	private Response cloudOrchestration(String requestJSON, Action action, HashMap<String, String> instanceIdMap, String version, String requestId) throws ApiException{
 		MsoLogger.setLogContext(requestId, null);
-	    msoLogger.info(MessageEnum.APIH_GENERATED_REQUEST_ID, requestId, "", "");
+	    logger.info("{} {}", MessageEnum.APIH_GENERATED_REQUEST_ID.toString(), requestId);
 		long startTime = System.currentTimeMillis ();
 		CloudOrchestrationRequest cor = null;
 		tenantIsolationRequest.setRequestId(requestId);
@@ -168,7 +172,7 @@ public class CloudOrchestration {
 		if(instanceIdMap != null && instanceIdMap.get(ENVIRONMENT_ID_KEY) != null) {
 			instanceId = instanceIdMap.get(ENVIRONMENT_ID_KEY);
 		} else {
-			instanceId = UUIDChecker.generateUUID(msoLogger);
+			instanceId = UUID.randomUUID().toString();
 			tenantIsolationRequest.setOperationalEnvironmentId(instanceId);
 			cor.setOperationalEnvironmentId(instanceId);
 		}
@@ -217,7 +221,7 @@ public class CloudOrchestration {
 	private CloudOrchestrationRequest convertJsonToCloudOrchestrationRequest(String requestJSON, Action action, long startTime,
                                                                              CloudOrchestrationRequest cor) throws ApiException {
 		try{
-			msoLogger.debug("Converting incoming JSON request to Object");
+			logger.debug("Converting incoming JSON request to Object");
 			ObjectMapper mapper = new ObjectMapper();
 			return mapper.readValue(requestJSON, CloudOrchestrationRequest.class);
 		} catch(IOException e){
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudResourcesOrchestration.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudResourcesOrchestration.java
index 6d8ca96080..377b03c4ab 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudResourcesOrchestration.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/CloudResourcesOrchestration.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -60,7 +62,8 @@ import org.onap.so.exceptions.ValidationException;
 import org.onap.so.logger.MessageEnum;
 
 import org.onap.so.logger.MsoLogger;
-import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -74,7 +77,7 @@ import io.swagger.annotations.ApiOperation;
 @Api(value="onap/so/infra/cloudResourcesRequests",description="API GET Requests for cloud resources - Tenant Isolation")
 public class CloudResourcesOrchestration {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, CloudResourcesOrchestration.class);
+	private static Logger logger = LoggerFactory.getLogger(CloudResourcesOrchestration.class);
 
 	@Autowired
 	RequestsDbClient requestDbClient;
@@ -94,7 +97,7 @@ public class CloudResourcesOrchestration {
 
 		CloudOrchestrationRequest cor = null;
 
-		msoLogger.debug ("requestId is: " + requestId);
+		logger.debug ("requestId is: " + requestId);
 		
 		try{
 			ObjectMapper mapper = new ObjectMapper();
@@ -156,7 +159,6 @@ public class CloudResourcesOrchestration {
 	@Transactional
 	public Response getOperationEnvironmentStatusFilter(@Context UriInfo ui, @PathParam("version") String version ) throws ApiException{
 		MsoLogger.setServiceName ("getOperationEnvironmentStatusFilter");
-		UUIDChecker.generateUUID(msoLogger);
 
 		MultivaluedMap<String, String> queryParams = ui.getQueryParameters();
 		List<String> requestIdKey = queryParams.get("requestId");
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/ModelDistributionRequest.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/ModelDistributionRequest.java
index e75d56e7d3..ace0fb664c 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/ModelDistributionRequest.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/ModelDistributionRequest.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -48,6 +50,8 @@ import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.serviceinstancebeans.RequestError;
 import org.onap.so.serviceinstancebeans.ServiceException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
@@ -62,7 +66,7 @@ import io.swagger.annotations.ApiOperation;
 @Api(value="/onap/so/infra/modelDistributions",description="API Requests for Model Distributions")
 public class ModelDistributionRequest {
 	
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, ModelDistributionRequest.class);
+	private static Logger logger = LoggerFactory.getLogger(ModelDistributionRequest.class);
 	@Autowired
 	private Provider<TenantIsolationRunnable> tenantIsolationRunnable;
 	
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRequest.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRequest.java
index 855a5433f3..47cbb0c895 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRequest.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRequest.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -49,6 +51,8 @@ import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 
 import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
@@ -75,7 +79,7 @@ public class TenantIsolationRequest {
     @Autowired
 	private RequestsDbClient requestsDbClient;
     
-    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, TenantIsolationRequest.class);
+    private static Logger logger = LoggerFactory.getLogger(TenantIsolationRequest.class);
 
 
 	TenantIsolationRequest (String requestId) {
@@ -351,8 +355,9 @@ public class TenantIsolationRequest {
 			request.setLastModifiedBy(Constants.MODIFIED_BY_APIHANDLER);
 			requestsDbClient.save(request);
 		} catch (Exception e) {
-			msoLogger.error(MessageEnum.APIH_DB_UPDATE_EXC, e.getMessage(), "", "", MsoLogger.ErrorCode.DataError, "Exception when updating record in DB");
-			msoLogger.debug ("Exception: ", e);
+			logger.error("{} {} {} {}", MessageEnum.APIH_DB_UPDATE_EXC.toString(), e.getMessage(),
+				MsoLogger.ErrorCode.DataError.getValue(), "Exception when updating record in DB");
+			logger.debug("Exception: ", e);
 		}
 	}
 	
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRunnable.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRunnable.java
index 7ad7e6626d..00ce137ee3 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRunnable.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/TenantIsolationRunnable.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -35,7 +37,8 @@ import org.onap.so.apihandlerinfra.tenantisolationbeans.OperationalEnvironment;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
-import org.slf4j.MDC;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.scheduling.annotation.Async;
@@ -45,7 +48,7 @@ import org.springframework.stereotype.Component;
 @Scope("prototype")
 public class TenantIsolationRunnable {
 
-	private static final MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, TenantIsolationRunnable.class);
+	private static final Logger logger = LoggerFactory.getLogger(TenantIsolationRunnable.class);
 	
 	@Autowired 
 	private RequestsDBHelper requestDb; 
@@ -62,8 +65,9 @@ public class TenantIsolationRunnable {
 	
 	@Async
 	public void run(Action action, String operationalEnvType, CloudOrchestrationRequest cor, String requestId) throws ApiException {
-		
-		msoLogger.debug ("Starting threadExecution in TenantIsolationRunnable for Action " + action.name() + " and OperationalEnvType: " + operationalEnvType);
+
+		logger.debug("Starting threadExecution in TenantIsolationRunnable for Action {} and OperationalEnvType: {}",
+			action.name(), operationalEnvType);
 		try {
 			
 			if(Action.create.equals(action)) {
@@ -74,7 +78,8 @@ public class TenantIsolationRunnable {
 				} else {
                     ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_GENERAL_EXCEPTION, MsoLogger.ErrorCode.DataError).build();
                     ValidateException validateException = new ValidateException.Builder("Invalid OperationalEnvironment Type specified for Create Action",
-                            HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo).build();
+                            HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo)
+											.build();
 
                     throw validateException;
 				}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/AAIClientHelper.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/AAIClientHelper.java
index 6a5de77c73..870fa11b5c 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/AAIClientHelper.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/AAIClientHelper.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -34,14 +36,15 @@ import org.onap.so.client.aai.entities.AAIResultWrapper;
 import org.onap.so.client.aai.entities.uri.AAIResourceUri;
 import org.onap.so.client.aai.entities.uri.AAIUriFactory;
 import org.onap.so.client.graphinventory.entities.uri.Depth;
-import org.onap.so.logger.MsoLogger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 
 @Component
 public class AAIClientHelper {
 	
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, AAIClientHelper.class);
+	private static Logger logger = LoggerFactory.getLogger(AAIClientHelper.class);
 
 	/**
 	 * Get managing ECOMP Environment Info from A&AI
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/ActivateVnfDBHelper.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/ActivateVnfDBHelper.java
index dcd3a42875..eb0721270d 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/ActivateVnfDBHelper.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/ActivateVnfDBHelper.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -22,13 +24,14 @@ package org.onap.so.apihandlerinfra.tenantisolation.helpers;
 
 import org.onap.so.db.request.beans.OperationalEnvDistributionStatus;
 import org.onap.so.db.request.beans.OperationalEnvServiceModelStatus;
-import org.onap.so.logger.MsoLogger;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 @Component
 public class ActivateVnfDBHelper {
 	
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, ActivateVnfDBHelper.class);
+	private static Logger logger = LoggerFactory.getLogger(ActivateVnfDBHelper.class);
 	
 	/**
 	 * Insert record to OperationalEnvServiceModelStatus table  
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/SDCClientHelper.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/SDCClientHelper.java
index 5ead7ddd7f..9303e12071 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/SDCClientHelper.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/helpers/SDCClientHelper.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -39,13 +41,15 @@ import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.utils.CryptoUtils;
 import org.onap.so.utils.TargetEntity;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
 @Component
 public class SDCClientHelper {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, SDCClientHelper.class);
+	private static Logger logger = LoggerFactory.getLogger(SDCClientHelper.class);
 	private static final String SDC_CONTENT_TYPE = "application/json";
 	private static final String SDC_ACCEPT_TYPE = "application/json";
 	private static String PARTIAL_SDC_URI = "/sdc/v1/catalog/services/";
@@ -106,9 +110,9 @@ public class SDCClientHelper {
 			sdcResponseJsonObj = enhanceJsonResponse(new JSONObject(responseData), statusCode);
 
 		} catch (Exception ex) {
-			msoLogger.debug("calling SDC Exception message: " + ex.getMessage());
+			logger.debug("calling SDC Exception message: {}", ex.getMessage());
 			String errorMessage = " Encountered Error while calling SDC POST Activate. " + ex.getMessage();
-			msoLogger.debug(errorMessage);
+			logger.debug(errorMessage);
 			sdcResponseJsonObj.put("statusCode", String.valueOf(Response.Status.INTERNAL_SERVER_ERROR.getStatusCode()));
 			sdcResponseJsonObj.put("messageId", "");
 			sdcResponseJsonObj.put("message", errorMessage);
@@ -217,7 +221,7 @@ public class SDCClientHelper {
 
 		}
 		catch (Exception e) {
-			msoLogger.debug("Failed to decrypt credentials: " + toDecrypt, e);
+			logger.debug("Failed to decrypt credentials: {}", toDecrypt, e);
 		}
 		return result;
 	}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfOperationalEnvironment.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfOperationalEnvironment.java
index 1d2a445c40..f70fe71554 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfOperationalEnvironment.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfOperationalEnvironment.java
@@ -50,6 +50,8 @@ import org.onap.so.db.request.beans.OperationalEnvServiceModelStatus;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
@@ -58,7 +60,7 @@ import org.springframework.stereotype.Component;
 @Component
 public class ActivateVnfOperationalEnvironment {
 
-	private static final MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, ActivateVnfOperationalEnvironment.class);
+	private static final Logger logger = LoggerFactory.getLogger(ActivateVnfOperationalEnvironment.class);
 	private static final int DEFAULT_ACTIVATE_RETRY_COUNT = 3;
 	private static final String DISTRIBUTION_STATUS_SENT = "SENT";	
 	private static final String OPER_ENVIRONMENT_ID_KEY = "operational-environment-id";
@@ -100,12 +102,12 @@ public class ActivateVnfOperationalEnvironment {
 			   ecompOperationalEnvironmentId = operationalEnvironments.get(0).getURIKeys().get(OPER_ENVIRONMENT_ID_KEY);
 		   }
 		}
-		msoLogger.debug("  vnfOperationalEnvironmentId   : " + vnfOperationalEnvironmentId);		
-		msoLogger.debug("  ecompOperationalEnvironmentId : " + ecompOperationalEnvironmentId);
+		logger.debug("  vnfOperationalEnvironmentId   : {}", vnfOperationalEnvironmentId);
+		logger.debug("  ecompOperationalEnvironmentId : {}", ecompOperationalEnvironmentId);
 
 		OperationalEnvironment operationalEnv = wrapper.asBean(OperationalEnvironment.class).get();
 		String workloadContext = operationalEnv.getWorkloadContext();
-		msoLogger.debug("  aai workloadContext: " + workloadContext);
+		logger.debug("  aai workloadContext: {}", workloadContext);
 		if (!vidWorkloadContext.equals(workloadContext)) {
 			ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_GENERAL_EXCEPTION, MsoLogger.ErrorCode.BusinessProcesssError).build();
 			throw new ValidateException.Builder(" The vid workloadContext did not match from aai record. " + " vid workloadContext:" + vidWorkloadContext + " aai workloadContext:" + workloadContext,
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfStatusOperationalEnvironment.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfStatusOperationalEnvironment.java
index 66cfd349df..219a2efcac 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfStatusOperationalEnvironment.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/ActivateVnfStatusOperationalEnvironment.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -42,13 +44,15 @@ import org.onap.so.db.request.beans.OperationalEnvServiceModelStatus;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
 public class ActivateVnfStatusOperationalEnvironment {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, ActivateVnfStatusOperationalEnvironment.class);
+	private static Logger logger = LoggerFactory.getLogger(ActivateVnfStatusOperationalEnvironment.class);
 	private String origRequestId = "";
 	private String errorMessage = ""; 
 	private OperationalEnvDistributionStatus queryDistributionDbResponse = null;
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateEcompOperationalEnvironment.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateEcompOperationalEnvironment.java
index b09bbae0ad..6ba78aa175 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateEcompOperationalEnvironment.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateEcompOperationalEnvironment.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -32,13 +34,15 @@ import org.onap.so.apihandlerinfra.tenantisolation.helpers.AAIClientObjectBuilde
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
 public class CreateEcompOperationalEnvironment {
 	
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, CreateEcompOperationalEnvironment.class);
+	private static Logger logger = LoggerFactory.getLogger(CreateEcompOperationalEnvironment.class);
     
 	@Autowired 
 	private AAIClientObjectBuilder aaiClientObjectBuilder;
@@ -56,11 +60,12 @@ public class CreateEcompOperationalEnvironment {
 
 			// Call client to publish to DMaap
         try {
-        	msoLogger.debug("1" + request.getOperationalEnvironmentId());
-        	msoLogger.debug("2" + request.getRequestDetails().getRequestInfo().getInstanceName());
-        	msoLogger.debug("3" + request.getRequestDetails().getRequestParameters().getOperationalEnvironmentType().toString());
-        	msoLogger.debug("4" + request.getRequestDetails().getRequestParameters().getTenantContext());
-        	msoLogger.debug("5" + request.getRequestDetails().getRequestParameters().getWorkloadContext());
+					logger.debug("1 {}", request.getOperationalEnvironmentId());
+					logger.debug("2 {}", request.getRequestDetails().getRequestInfo().getInstanceName());
+					logger.debug("3 {}", request.getRequestDetails().getRequestParameters().getOperationalEnvironmentType()
+						.toString());
+					logger.debug("4 {}", request.getRequestDetails().getRequestParameters().getTenantContext());
+					logger.debug("5 {}", request.getRequestDetails().getRequestParameters().getWorkloadContext());
 
 
             dmaapClient.dmaapPublishOperationalEnvRequest(request.getOperationalEnvironmentId(),
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateVnfOperationalEnvironment.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateVnfOperationalEnvironment.java
index 36226aae68..2eaba25234 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateVnfOperationalEnvironment.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/CreateVnfOperationalEnvironment.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -48,6 +50,8 @@ import org.onap.so.client.grm.beans.Version;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
@@ -56,7 +60,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 @Component
 public class CreateVnfOperationalEnvironment {
 	
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, CreateVnfOperationalEnvironment.class);
+	private static Logger logger = LoggerFactory.getLogger(CreateVnfOperationalEnvironment.class);
 	protected CloudOrchestrationRequest request;
 	
 	@Autowired 
@@ -78,7 +82,7 @@ public class CreateVnfOperationalEnvironment {
 			OperationalEnvironment aaiEnv = aaiResultWrapper.asBean(OperationalEnvironment.class).get();
 
 			//Find ECOMP environments in GRM
-			msoLogger.debug(" Start of GRM findRunningServicesAsString");
+			logger.debug(" Start of GRM findRunningServicesAsString");
 			String searchKey = getSearchKey(aaiEnv);
 			String tenantContext = getTenantContext().toUpperCase();
 			String jsonResponse = getGrmClient().findRunningServicesAsString(searchKey, 1, tenantContext);
@@ -92,7 +96,7 @@ public class CreateVnfOperationalEnvironment {
 			int ctr = 0;
 			int total = serviceEndpointRequestList.size();
 			for (ServiceEndPointRequest requestList : serviceEndpointRequestList) {
-				msoLogger.debug("Creating endpoint " + ++ctr + " of " + total + ": " + requestList.getServiceEndPoint().getName());
+				logger.debug("Creating endpoint " + ++ctr + " of " + total + ": " + requestList.getServiceEndPoint().getName());
 				getGrmClient().addServiceEndPoint(requestList);
 			}
 
@@ -137,7 +141,7 @@ public class CreateVnfOperationalEnvironment {
 	
 	private List<ServiceEndPointRequest> buildEndPointRequestList(ServiceEndPointList serviceEndPointList) throws TenantIsolationException {
 		List<ServiceEndPoint> endpointList = serviceEndPointList.getServiceEndPointList();
-		msoLogger.debug("Number of service endpoints from GRM: " + endpointList.size());
+		logger.debug("Number of service endpoints from GRM: {}", endpointList.size());
 		List<ServiceEndPointRequest> serviceEndPointRequestList = new ArrayList<ServiceEndPointRequest>(); 
 		for(ServiceEndPoint serviceEndpoint : endpointList) {
 			serviceEndPointRequestList.add(buildServiceEndpoint(serviceEndpoint));
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/DeactivateVnfOperationalEnvironment.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/DeactivateVnfOperationalEnvironment.java
index 977184e2c5..2181215ca7 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/DeactivateVnfOperationalEnvironment.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/tenantisolation/process/DeactivateVnfOperationalEnvironment.java
@@ -4,6 +4,8 @@
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -35,13 +37,16 @@ import org.onap.so.client.aai.entities.AAIResultWrapper;
 import org.onap.so.logger.MessageEnum;
 import org.onap.so.logger.MsoLogger;
 import org.onap.so.requestsdb.RequestsDBHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
 public class DeactivateVnfOperationalEnvironment {
 
-	private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.APIH, DeactivateVnfOperationalEnvironment.class);
+	private static Logger logger = LoggerFactory.getLogger(DeactivateVnfOperationalEnvironment
+		.class);
 	
     @Autowired 
     private AAIClientHelper aaiHelper;
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/validation/RelatedInstancesValidation.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/validation/RelatedInstancesValidation.java
index a6fdcc958d..5eb3083003 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/validation/RelatedInstancesValidation.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/validation/RelatedInstancesValidation.java
@@ -5,6 +5,8 @@
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
  * Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
  * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -25,7 +27,6 @@ import org.onap.so.apihandlerinfra.Action;
 import org.onap.so.apihandlerinfra.Actions;
 import org.onap.so.apihandlerinfra.Constants;
 import org.onap.so.exceptions.ValidationException;
-import org.onap.so.logger.MsoLogger;
 import org.onap.so.serviceinstancebeans.InstanceDirection;
 import org.onap.so.serviceinstancebeans.ModelInfo;
 import org.onap.so.serviceinstancebeans.ModelType;
@@ -33,11 +34,16 @@ import org.onap.so.serviceinstancebeans.RelatedInstance;
 import org.onap.so.serviceinstancebeans.RelatedInstanceList;
 import org.onap.so.serviceinstancebeans.ServiceInstancesRequest;
 import org.onap.so.utils.UUIDChecker;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class RelatedInstancesValidation implements ValidationRule{
-    private static boolean empty(String s) {
-  	  return (s == null || s.trim().isEmpty());
-    }
+
+	private static Logger logger = LoggerFactory.getLogger(RelatedInstancesValidation.class);
+
+	private static boolean empty(String s) {
+		return (s == null || s.trim().isEmpty());
+	}
 	@Override
 	public ValidationInformation validate(ValidationInformation info) throws ValidationException{
 		ServiceInstancesRequest sir = info.getSir();
@@ -50,7 +56,6 @@ public class RelatedInstancesValidation implements ValidationRule{
       	String vfModuleType = null;
       	String vfModuleModelName = null;
 		ModelInfo modelInfo = info.getSir().getRequestDetails().getModelInfo();
-	    MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH, RelatedInstancesValidation.class);
 		RelatedInstanceList[] instanceList = sir.getRequestDetails().getRelatedInstanceList();
 		String serviceModelName = null;
         String vnfModelName = null;
@@ -229,7 +234,7 @@ public class RelatedInstancesValidation implements ValidationRule{
         		(reqVersion >= 4 && (requestScope.equalsIgnoreCase(ModelType.volumeGroup.name ()) || requestScope.equalsIgnoreCase(ModelType.vfModule.name ())) && action == Action.updateInstance ||
         		(requestScope.equalsIgnoreCase(ModelType.vfModule.name ()) && action == Action.scaleOut)) ||
         			(requestScope.equalsIgnoreCase(ModelType.service.name()) && (action.equals(Action.addRelationships) || action.equals(Action.removeRelationships)))){
-        	 msoLogger.debug ("related instance exception");
+        	 logger.debug("related instance exception");
         	throw new ValidationException ("related instances");
         }
 	    if(instanceList == null && requestScope.equalsIgnoreCase(ModelType.instanceGroup.toString()) && action == Action.createInstance){
@@ -242,4 +247,4 @@ public class RelatedInstancesValidation implements ValidationRule{
       	info.setVfModuleType(vfModuleType);
 		return info;
 	}
-}
\ No newline at end of file
+}