Adding Schema reference in the API definition instead of declaring Object Type

Issue-ID: CCSDK-3937
Signed-off-by: raviteja.karumuri <raviteja.karumuri@est.tech>
Change-Id: Ic301c785a39a0f6d0e5057e67dc592eda01a3d0b

8 files changed, 71 insertions, 102 deletions

diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ConfigurationController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ConfigurationController.java
index 6bf6fbaf..4b0d6b58 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ConfigurationController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ConfigurationController.java
@@ -27,6 +27,7 @@ import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationCo
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationConfigParser;
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ConfigurationFile;
 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.api.v2.ConfigurationApi;
+import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -78,27 +79,20 @@ public class ConfigurationController implements ConfigurationApi {
                         logger.warn("Configuration file not written, {}.", ioe.getMessage());
                         return ErrorResponse.createMono("Internal error when writing the configuration.",
                                 HttpStatus.INTERNAL_SERVER_ERROR);
-                    } catch (Exception e) {
+                    } catch (ServiceException e) {
                         return ErrorResponse.createMono(e, HttpStatus.BAD_REQUEST);
                     }
                 })
-                .onErrorResume(error -> {
-                    return ErrorResponse.createMono(error.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
-                });
+                .doOnError(error -> logger.error(error.getMessage()));
     }
 
     @Override
-    public Mono<ResponseEntity<Object>> getConfiguration(final ServerWebExchange exchange) {
-        try {
+    public Mono<ResponseEntity<String>> getConfiguration(final ServerWebExchange exchange) throws ServiceException {
             Optional<JsonObject> rootObject = configurationFile.readFile();
             if (rootObject.isPresent()) {
                 return Mono.just(new ResponseEntity<>(rootObject.get().toString(), HttpStatus.OK));
             } else {
-                return ErrorResponse.createMono("File does not exist", HttpStatus.NOT_FOUND);
+                throw new ServiceException("File does not exist", HttpStatus.NOT_FOUND);
             }
-        } catch (Exception e) {
-            return ErrorResponse.createMono(e, HttpStatus.INTERNAL_SERVER_ERROR);
-        }
     }
-
 }
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ErrorResponse.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ErrorResponse.java
index e79a8217..d4f3bbfb 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ErrorResponse.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ErrorResponse.java
@@ -96,7 +96,7 @@ public class ErrorResponse {
         return createMono(e.toString(), code);
     }
 
-    static ResponseEntity<Object> create(String text, HttpStatusCode code) {
+    public static ResponseEntity<Object> create(String text, HttpStatusCode code) {
         logger.debug("Error response: {}, {}", code, text);
         ErrorInfo p = new ErrorInfo(text, code.value());
         String json = gson.toJson(p);
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
index 23dcba71..53cf62a2 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
@@ -33,7 +33,6 @@ import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
-import java.util.Map;
 
 import lombok.Getter;
 
@@ -105,7 +104,7 @@ public class PolicyController implements A1PolicyManagementApi {
             .create(); //
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicyTypeDefinition(String policyTypeId, ServerWebExchange exchange)
+    public Mono<ResponseEntity<PolicyTypeDefinition>> getPolicyTypeDefinition(String policyTypeId, ServerWebExchange exchange)
             throws EntityNotFoundException, JsonProcessingException {
         PolicyType type = policyTypes.getType(policyTypeId);
         JsonNode node = objectMapper.readTree(type.getSchema());
@@ -114,7 +113,7 @@ public class PolicyController implements A1PolicyManagementApi {
     }
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicyTypes(String ricId, String typeName, String compatibleWithVersion, ServerWebExchange exchange) throws Exception {
+    public Mono<ResponseEntity<PolicyTypeIdList>> getPolicyTypes(String ricId, String typeName, String compatibleWithVersion, ServerWebExchange exchange) throws Exception {
         if (compatibleWithVersion != null && typeName == null) {
             throw new ServiceException("Parameter " + Consts.COMPATIBLE_WITH_VERSION_PARAM + " can only be used when "
                     + Consts.TYPE_NAME_PARAM + " is given", HttpStatus.BAD_REQUEST);
@@ -129,12 +128,12 @@ public class PolicyController implements A1PolicyManagementApi {
 
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicy(String policyId, final ServerWebExchange exchange)
+    public Mono<ResponseEntity<PolicyInfo>> getPolicy(String policyId, final ServerWebExchange exchange)
             throws EntityNotFoundException {
         Policy policy = policies.getPolicy(policyId);
         return authorization.doAccessControl(exchange.getRequest().getHeaders().toSingleValueMap(), policy, AccessType.READ) //
-                .map(x -> new ResponseEntity<>((Object) toPolicyInfo(policy), HttpStatus.OK)) //
-                .onErrorResume(this::handleException);
+                .map(x -> new ResponseEntity<>(toPolicyInfo(policy), HttpStatus.OK)) //
+                .doOnError(error -> logger.error(error.getMessage()));
     }
 
     @Override
@@ -173,7 +172,7 @@ public class PolicyController implements A1PolicyManagementApi {
                     .flatMap(tuple -> {
                         Ric ric = tuple.getT1();
                         PolicyType type = tuple.getT2();
-
+                        keepServiceAlive(policyInfoValue.getServiceId());
                         Policy policy = Policy.builder()
                                 .id(policyInfoValue.getPolicyId())
                                 .json(jsonString)
@@ -265,7 +264,7 @@ public class PolicyController implements A1PolicyManagementApi {
     }
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicyInstances(String policyTypeId, String ricId, String serviceId, String typeName, ServerWebExchange exchange) throws Exception {
+    public Mono<ResponseEntity<PolicyInfoList>> getPolicyInstances(String policyTypeId, String ricId, String serviceId, String typeName, ServerWebExchange exchange) throws Exception {
         if ((policyTypeId != null && this.policyTypes.get(policyTypeId) == null)) {
             throw new EntityNotFoundException("Policy type identity not found");
         }
@@ -279,12 +278,12 @@ public class PolicyController implements A1PolicyManagementApi {
                 .doOnError(e -> logger.debug("Unauthorized to read policy: {}", e.getMessage()))
                 .onErrorResume(e -> Mono.empty())
                 .collectList()
-                .map(authPolicies -> new ResponseEntity<>((Object) policiesToJson(authPolicies), HttpStatus.OK))
-                .onErrorResume(this::handleException);
+                .map(authPolicies -> new ResponseEntity<>(policiesToJson(authPolicies), HttpStatus.OK))
+                .doOnError(error -> logger.error(error.getMessage()));
     }
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicyIds(String policyTypeId, String ricId, String serviceId, String typeName, ServerWebExchange exchange) throws Exception {
+    public Mono<ResponseEntity<PolicyIdList>> getPolicyIds(String policyTypeId, String ricId, String serviceId, String typeName, ServerWebExchange exchange) throws Exception {
         if ((policyTypeId != null && this.policyTypes.get(policyTypeId) == null)) {
             throw new EntityNotFoundException("Policy type not found");
         }
@@ -298,32 +297,27 @@ public class PolicyController implements A1PolicyManagementApi {
                 .doOnError(e -> logger.debug("Unauthorized to read policy: {}", e.getMessage()))
                 .onErrorResume(e -> Mono.empty())
                 .collectList()
-                .map(authPolicies -> new ResponseEntity<>((Object)toPolicyIdsJson(authPolicies), HttpStatus.OK))
-                .onErrorResume(this::handleException);
+                .map(authPolicies -> new ResponseEntity<>(toPolicyIdsJson(authPolicies), HttpStatus.OK))
+                .doOnError(error -> logger.error(error.getMessage()));
     }
 
     @Override
-    public Mono<ResponseEntity<Object>> getPolicyStatus(String policyId, ServerWebExchange exchange) throws Exception {
+    public Mono<ResponseEntity<PolicyStatusInfo>> getPolicyStatus(String policyId, ServerWebExchange exchange) throws Exception {
         Policy policy = policies.getPolicy(policyId);
 
         return authorization.doAccessControl(exchange.getRequest().getHeaders().toSingleValueMap(), policy, AccessType.READ) //
                 .flatMap(notUsed -> a1ClientFactory.createA1Client(policy.getRic())) //
                 .flatMap(client -> client.getPolicyStatus(policy).onErrorResume(e -> Mono.just("{}"))) //
                 .flatMap(status -> createPolicyStatus(policy, status))
-                .onErrorResume(this::handleException);
+                .doOnError(error -> logger.error(error.getMessage()));
     }
 
-    private Mono<ResponseEntity<Object>> createPolicyStatus(Policy policy, String statusFromNearRic) {
+    private Mono<ResponseEntity<PolicyStatusInfo>> createPolicyStatus(Policy policy, String statusFromNearRic) {
 
-    try {
         PolicyStatusInfo policyStatusInfo = new PolicyStatusInfo();
         policyStatusInfo.setLastModified(policy.getLastModified().toString());
         policyStatusInfo.setStatus(fromJson(statusFromNearRic));
-        String policyStatusInfoAsString = objectMapper.writeValueAsString(policyStatusInfo);
-        return Mono.just(new ResponseEntity<>(policyStatusInfoAsString, HttpStatus.OK));
-    } catch (JsonProcessingException ex) {
-        throw new RuntimeException(ex);
-    }
+        return Mono.just(new ResponseEntity<>(policyStatusInfo, HttpStatus.OK));
     }
 
     private void keepServiceAlive(String name) {
@@ -334,69 +328,57 @@ public class PolicyController implements A1PolicyManagementApi {
     }
 
     private PolicyInfo toPolicyInfo(Policy policy) {
-        PolicyInfo policyInfo = new PolicyInfo()
-                .policyId(policy.getId())
-                .policyData(gson.fromJson(policy.getJson(), Map.class))
-                .ricId(policy.getRic().id())
-                .policytypeId(policy.getType().getId())
-                .serviceId(policy.getOwnerServiceId())
-                ._transient(policy.isTransient());
-        if (!policy.getStatusNotificationUri().isEmpty()) {
-            policyInfo.setStatusNotificationUri(policy.getStatusNotificationUri());
-        }
-        return policyInfo;
-    }
-
-    private String toPolicyInfoString(Policy policy) {
-
-        try {
-            return objectMapper.writeValueAsString(toPolicyInfo(policy));
-        } catch (JsonProcessingException ex) {
-            throw new RuntimeException(ex);
-        }
+       try {
+           PolicyInfo policyInfo = new PolicyInfo()
+                   .policyId(policy.getId())
+                   .policyData(objectMapper.readTree(policy.getJson()))
+                   .ricId(policy.getRic().id())
+                   .policytypeId(policy.getType().getId())
+                   .serviceId(policy.getOwnerServiceId())
+                   ._transient(policy.isTransient());
+           if (!policy.getStatusNotificationUri().isEmpty()) {
+               policyInfo.setStatusNotificationUri(policy.getStatusNotificationUri());
+           }
+           return policyInfo;
+       } catch (JsonProcessingException ex) {
+           throw new RuntimeException(ex);
+       }
     }
 
-    private String policiesToJson(Collection<Policy> policies) {
+    private PolicyInfoList policiesToJson(Collection<Policy> policies) {
 
-            try {
                 List<PolicyInfo> policiesList = new ArrayList<>(policies.size());
                 PolicyInfoList policyInfoList = new PolicyInfoList();
                 for (Policy policy : policies) {
                     policiesList.add(toPolicyInfo(policy));
                 }
                 policyInfoList.setPolicies(policiesList);
-                return objectMapper.writeValueAsString(policyInfoList);
-            } catch(JsonProcessingException ex) {
-           throw new RuntimeException(ex);
-       }
+                return policyInfoList;
     }
 
     private Object fromJson(String jsonStr) {
         return gson.fromJson(jsonStr, Object.class);
     }
 
-    private String toPolicyTypeIdsJson(Collection<PolicyType> policyTypes) throws JsonProcessingException {
+    private PolicyTypeIdList toPolicyTypeIdsJson(Collection<PolicyType> policyTypes) {
 
+        List<String> policyTypeList = new ArrayList<>(policyTypes.size());
         PolicyTypeIdList idList = new PolicyTypeIdList();
         for (PolicyType policyType : policyTypes) {
-            idList.addPolicytypeIdsItem(policyType.getId());
+            policyTypeList.add(policyType.getId());
         }
-
-        return objectMapper.writeValueAsString(idList);
+        idList.setPolicytypeIds(policyTypeList);
+        return idList;
     }
 
-    private String toPolicyIdsJson(Collection<Policy> policies) {
+    private PolicyIdList toPolicyIdsJson(Collection<Policy> policies) {
 
-        try {
             List<String> policyIds = new ArrayList<>(policies.size());
             PolicyIdList idList = new PolicyIdList();
             for (Policy policy : policies) {
                 policyIds.add(policy.getId());
             }
             idList.setPolicyIds(policyIds);
-            return objectMapper.writeValueAsString(idList);
-        } catch (JsonProcessingException ex) {
-            throw new RuntimeException(ex);
-        }
+            return idList;
     }
 }
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/RicRepositoryController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/RicRepositoryController.java
index 63b0560c..8907774b 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/RicRepositoryController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/RicRepositoryController.java
@@ -2,7 +2,7 @@
  * ========================LICENSE_START=================================
  * ONAP : ccsdk oran
  * ======================================================================
- * Copyright (C) 2019-2020 Nordix Foundation. All rights reserved.
+ * Copyright (C) 2019-2023 Nordix Foundation. All rights reserved.
  * ======================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -69,17 +69,17 @@ public class RicRepositoryController implements NearRtRicRepositoryApi {
             "Either a Near-RT RIC identity or a Managed Element identity can be specified.<br>" //
                     + "The intention with Managed Element identity is the ID used in O1 for accessing the traffical element (such as the ID of CU).";
     @Override
-    public Mono<ResponseEntity<Object>> getRic(
+    public Mono<ResponseEntity<RicInfo>> getRic(
             final String managedElementId, final String ricId, final ServerWebExchange exchange)
             throws Exception {
         if (managedElementId != null && ricId != null) {
             throw new InvalidRequestException("Give one query parameter");
         } else if (managedElementId != null) {
             Ric ric = this.rics.lookupRicForManagedElement(managedElementId);
-            return Mono.just(new ResponseEntity<>(objectMapper.writeValueAsString(toRicInfo(ric)), HttpStatus.OK));
+            return Mono.just(new ResponseEntity<>(toRicInfo(ric), HttpStatus.OK));
         } else if (ricId != null) {
             RicInfo info = toRicInfo(this.rics.getRic(ricId));
-            return Mono.just(new ResponseEntity<>(objectMapper.writeValueAsString(info), HttpStatus.OK));
+            return Mono.just(new ResponseEntity<>(info, HttpStatus.OK));
         } else {
             throw new InvalidRequestException("Give one query parameter");
         }
@@ -89,7 +89,7 @@ public class RicRepositoryController implements NearRtRicRepositoryApi {
             "The call returns all Near-RT RICs that supports a given policy type identity";
 
     @Override
-    public Mono<ResponseEntity<Object>> getRics(final String supportingPolicyType, final ServerWebExchange exchange)
+    public Mono<ResponseEntity<RicInfoList>> getRics(final String supportingPolicyType, final ServerWebExchange exchange)
             throws Exception {
         if ((supportingPolicyType != null) && (this.types.get(supportingPolicyType) == null)) {
             throw new EntityNotFoundException("Policy type not found");
@@ -102,7 +102,7 @@ public class RicRepositoryController implements NearRtRicRepositoryApi {
             }
         }
 
-        return Mono.just(new ResponseEntity<>(objectMapper.writeValueAsString(new RicInfoList().rics(result)), HttpStatus.OK));
+        return Mono.just(new ResponseEntity<>(new RicInfoList().rics(result), HttpStatus.OK));
     }
 
     private RicInfo.StateEnum toRicState(Ric.RicState state) {
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
index 07b9440c..da157db0 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
@@ -76,9 +76,9 @@ public class ServiceController implements ServiceRegistryAndSupervisionApi {
             "Either information about a registered service with given identity or all registered services are returned.";
 
     @Override
-    public Mono<ResponseEntity<Object>> getServices(final String name, final ServerWebExchange exchange) throws Exception {
+    public Mono<ResponseEntity<ServiceStatusList>> getServices(final String name, final ServerWebExchange exchange) throws Exception {
         if (name != null && this.services.get(name) == null) {
-            return ErrorResponse.createMono("Service not found", HttpStatus.NOT_FOUND);
+            throw new ServiceException("Service not found", HttpStatus.NOT_FOUND);
         }
 
         List<ServiceStatus> servicesStatus = new ArrayList<>();
@@ -87,8 +87,7 @@ public class ServiceController implements ServiceRegistryAndSupervisionApi {
                 servicesStatus.add(toServiceStatus(s));
             }
         }
-        String res = objectMapper.writeValueAsString(new ServiceStatusList().serviceList(servicesStatus));
-        return Mono.just(new ResponseEntity<>(res, HttpStatus.OK));
+        return Mono.just(new ResponseEntity<>(new ServiceStatusList().serviceList(servicesStatus), HttpStatus.OK));
     }
 
     private ServiceStatus toServiceStatus(Service s) {
@@ -148,14 +147,10 @@ public class ServiceController implements ServiceRegistryAndSupervisionApi {
     }
 
     @Override
-    @PutMapping(Consts.V2_API_ROOT + "/services/{service_id}/keepalive")
-    public Mono<ResponseEntity<Object>> keepAliveService(final String serviceId, final ServerWebExchange exchange) {
-        try {
+    public Mono<ResponseEntity<Object>> keepAliveService(final String serviceId, final ServerWebExchange exchange) throws ServiceException {
+
             services.getService(serviceId).keepAlive();
             return Mono.just(new ResponseEntity<>(HttpStatus.OK));
-        } catch (ServiceException e) {
-            return ErrorResponse.createMono(e, HttpStatus.NOT_FOUND);
-        }
     }
 
     private Service removeService(String name) throws ServiceException {
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/StatusController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/StatusController.java
index 22200da6..4ec3652d 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/StatusController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/StatusController.java
@@ -20,9 +20,9 @@
 
 package org.onap.ccsdk.oran.a1policymanagementservice.controllers.v2;
 
-import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.api.v2.HealthCheckApi;
+import org.onap.ccsdk.oran.a1policymanagementservice.models.v2.StatusInfo;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.RestController;
@@ -38,19 +38,9 @@ public class StatusController implements HealthCheckApi{
     public static final String API_NAME = "Health Check";
     public static final String API_DESCRIPTION = "";
 
-    @Schema(name = "status_info_v2")
-    class StatusInfo {
-        @Schema(description = "status text")
-        public final String status;
-
-        StatusInfo(String status) {
-            this.status = status;
-        }
-    }
-
     @Override
-    public Mono<ResponseEntity<Object>> getStatus(final ServerWebExchange exchange) {
-        StatusInfo info = new StatusInfo("success");
+    public Mono<ResponseEntity<StatusInfo>> getStatus(final ServerWebExchange exchange) {
+        StatusInfo info = new StatusInfo().status("success");
         return Mono.just(new ResponseEntity<>(info, HttpStatus.OK));
     }
 
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/exceptions/GlobalExceptionHandler.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/exceptions/GlobalExceptionHandler.java
index be2f5b7b..8dae6c0b 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/exceptions/GlobalExceptionHandler.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/exceptions/GlobalExceptionHandler.java
@@ -2,7 +2,7 @@
  * ========================LICENSE_START=================================
  * ONAP : ccsdk oran
  * ======================================================================
- * Copyright (C) 2019-2020 Nordix Foundation. All rights reserved.
+ * Copyright (C) 2019-2023 Nordix Foundation. All rights reserved.
  * ======================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ package org.onap.ccsdk.oran.a1policymanagementservice.exceptions;
 import java.lang.invoke.MethodHandles;
 
 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.v2.ErrorResponse;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.v2.PolicyController;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
@@ -47,4 +48,10 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
         loggerx.error("Runtime exception {}", ex.getMessage());
         return ErrorResponse.create(ex, HttpStatus.INTERNAL_SERVER_ERROR);
     }
-}
+
+    @ExceptionHandler(PolicyController.RejectionException.class)
+    public final ResponseEntity<Object> handleRejectionException(PolicyController.RejectionException ex) {
+        loggerx.error("Rejection exception {}", ex.getMessage());
+        return ErrorResponse.create(ex, ex.getStatus());
+    }
+}
\ No newline at end of file
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Services.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Services.java
index d8a902e9..c2f4f876 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Services.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Services.java
@@ -34,6 +34,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 
+import org.springframework.http.HttpStatus;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
@@ -51,7 +52,7 @@ public class Services {
     public synchronized Service getService(String name) throws ServiceException {
         Service service = registeredServices.get(name);
         if (service == null) {
-            throw new ServiceException("Could not find service: " + name);
+            throw new ServiceException("Could not find service: " + name, HttpStatus.NOT_FOUND);
         }
         return service;
     }