Add new service in API-Handler for 3gpp service instances

Issue-ID: SO-3189
Signed-off-by: Reshmasree <reshmasree.chamarthi2@wipro.com>
Change-Id: Ieb2d3d36b6a216b00f4c13ebabdf268cf833d267

8 files changed, 1219 insertions, 0 deletions

diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/JerseyConfiguration.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/JerseyConfiguration.java
index 168f82bdf3..d69c395f96 100644
--- a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/JerseyConfiguration.java
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/JerseyConfiguration.java
@@ -64,6 +64,7 @@ public class JerseyConfiguration extends ResourceConfig {
         register(GlobalHealthcheckHandler.class);
         register(NodeHealthcheckHandler.class);
         register(ServiceInstances.class);
+        register(Onap3gppServiceInstances.class);
         register(TasksHandler.class);
         register(CloudOrchestration.class);
         register(CloudResourcesOrchestration.class);
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/Onap3gppServiceInstances.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/Onap3gppServiceInstances.java
new file mode 100644
index 0000000000..e7b96b16a9
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/Onap3gppServiceInstances.java
@@ -0,0 +1,732 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra;
+
+import java.sql.Timestamp;
+import java.util.HashMap;
+import java.util.UUID;
+import java.util.function.Function;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.container.ContainerRequestContext;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import org.apache.http.HttpStatus;
+import org.onap.logging.filter.base.ErrorCode;
+import org.onap.so.apihandler.camundabeans.CamundaResponse;
+import org.onap.so.apihandler.common.CamundaClient;
+import org.onap.so.apihandler.common.ErrorNumbers;
+import org.onap.so.apihandler.common.RequestClientParameter;
+import org.onap.so.apihandler.common.ResponseBuilder;
+import org.onap.so.apihandler.common.ResponseHandler;
+import org.onap.so.apihandlerinfra.exceptions.ApiException;
+import org.onap.so.apihandlerinfra.exceptions.BPMNFailureException;
+import org.onap.so.apihandlerinfra.exceptions.RequestDbFailureException;
+import org.onap.so.apihandlerinfra.exceptions.ValidateException;
+import org.onap.so.apihandlerinfra.logging.ErrorLoggerInfo;
+import org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans.ActivateOrDeactivate3gppService;
+import org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans.Allocate3gppService;
+import org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans.DeAllocate3gppService;
+import org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans.Modify3gppService;
+import org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans.QuerySubnetCapability;
+import org.onap.so.constants.Status;
+import org.onap.so.db.catalog.beans.Service;
+import org.onap.so.db.catalog.beans.ServiceRecipe;
+import org.onap.so.db.catalog.client.CatalogDbClient;
+import org.onap.so.logger.LogConstants;
+import org.onap.so.logger.LoggingAnchor;
+import org.onap.so.logger.MessageEnum;
+import org.onap.so.serviceinstancebeans.ModelType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.swagger.v3.oas.annotations.OpenAPIDefinition;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.info.Info;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import org.onap.so.db.request.beans.InfraActiveRequests;
+import org.onap.so.db.request.client.RequestsDbClient;
+
+@Component
+@Path("/onap/so/infra/onap3gppServiceInstances")
+@OpenAPIDefinition(info = @Info(title = "/onap/so/infra/onap3gppServiceInstances",
+        description = "API Requests for 3GPP Service Instances"))
+public class Onap3gppServiceInstances {
+
+    private static final Logger logger = LoggerFactory.getLogger(Onap3gppServiceInstances.class);
+
+    private static final String MSO_PROP_APIHANDLER_INFRA = "MSO_PROP_APIHANDLER_INFRA";
+
+    private static final String END_OF_THE_TRANSACTION = "End of the transaction, the final response is: ";
+
+    private static final String SAVE_TO_DB = "save instance to db";
+
+    private static String uriPrefix = "/onap3gppServiceInstances/";
+
+    @Autowired
+    private MsoRequest msoRequest;
+
+    @Autowired
+    private CatalogDbClient catalogDbClient;
+
+    @Autowired
+    private RequestsDbClient requestsDbClient;
+
+    @Autowired
+    private RequestHandlerUtils requestHandlerUtils;
+
+    @Autowired
+    private ResponseBuilder builder;
+
+    @Autowired
+    private CamundaClient camundaClient;
+
+    @Autowired
+    private ResponseHandler responseHandler;
+
+    /**
+     * POST Requests for 3GPP Service create Instance on a version provided
+     *
+     * @throws ApiException
+     */
+
+    @POST
+    @Path("/{version:[vV][1]}/allocate")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    @Operation(description = "Create a 3GPP Service Instance on a version provided", responses = @ApiResponse(
+            content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    public Response createServiceInstance(Allocate3gppService request, @PathParam("version") String version,
+            @Context ContainerRequestContext requestContext) throws ApiException {
+        String requestId = requestHandlerUtils.getRequestId(requestContext);
+        return processServiceInstanceRequest(request, Action.createInstance, version, requestId, null,
+                requestHandlerUtils.getRequestUri(requestContext, uriPrefix));
+    }
+
+    /**
+     * PUT Requests for 3GPP Service update Instance on a version provided
+     *
+     * @throws ApiException
+     */
+
+    @PUT
+    @Path("/{version:[vV][1]}/modify")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    @Operation(description = "Modify a 3GPP Service Instance on a version provided", responses = @ApiResponse(
+            content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    public Response updateServiceInstance(Modify3gppService request, @PathParam("version") String version,
+            @Context ContainerRequestContext requestContext) throws ApiException {
+        String requestId = requestHandlerUtils.getRequestId(requestContext);
+        HashMap<String, String> instanceIdMap = new HashMap<>();
+        instanceIdMap.put("serviceInstanceId", request.getServiceInstanceID());
+        return updateServiceInstances(request, Action.updateInstance, version, requestId, instanceIdMap,
+                requestHandlerUtils.getRequestUri(requestContext, uriPrefix));
+    }
+
+    /**
+     * DELETE Requests for 3GPP Service delete Instance on a specified version
+     *
+     * @throws ApiException
+     */
+
+    @DELETE
+    @Path("/{version:[vV][1]}/deAllocate")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    @Operation(description = "Terminate/Deallocate a 3GPP Service Instance on a version provided",
+            responses = @ApiResponse(
+                    content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    public Response deleteServiceInstance(DeAllocate3gppService request, @PathParam("version") String version,
+            @Context ContainerRequestContext requestContext) throws ApiException {
+        String requestId = requestHandlerUtils.getRequestId(requestContext);
+        HashMap<String, String> instanceIdMap = new HashMap<>();
+        instanceIdMap.put("serviceInstanceId", request.getServiceInstanceID());
+        return deleteServiceInstances(request, Action.deleteInstance, version, requestId, instanceIdMap,
+                requestHandlerUtils.getRequestUri(requestContext, uriPrefix));
+    }
+
+    /**
+     * POST Requests for 3GPP Service Activate on a specified version
+     *
+     * @throws ApiException
+     */
+
+    @POST
+    @Path("/{version:[vV][1]}/activate")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    @Operation(description = "Activate a 3GPP Service Instance on a version provided", responses = @ApiResponse(
+            content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    public Response activateServiceInstance(ActivateOrDeactivate3gppService request,
+            @PathParam("version") String version, @Context ContainerRequestContext requestContext) throws ApiException {
+        String requestId = requestHandlerUtils.getRequestId(requestContext);
+        HashMap<String, String> instanceIdMap = new HashMap<>();
+        instanceIdMap.put("serviceInstanceId", request.getServiceInstanceID());
+        return activateOrDeactivateServiceInstances(request, Action.activateInstance, version, requestId, instanceIdMap,
+                requestHandlerUtils.getRequestUri(requestContext, uriPrefix));
+    }
+
+    /**
+     * POST Requests for 3GPP Service DeActivate on a specified version
+     *
+     * @throws ApiException
+     */
+
+    @POST
+    @Path("/{version:[vV][1]}/deActivate")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    @Operation(description = "Deactivate a 3GPP Service Instance on a version provided", responses = @ApiResponse(
+            content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    public Response deActivateServiceInstance(ActivateOrDeactivate3gppService request,
+            @PathParam("version") String version, @Context ContainerRequestContext requestContext) throws ApiException {
+        String requestId = requestHandlerUtils.getRequestId(requestContext);
+        HashMap<String, String> instanceIdMap = new HashMap<>();
+        instanceIdMap.put("serviceInstanceId", request.getServiceInstanceID());
+        return activateOrDeactivateServiceInstances(request, Action.deactivateInstance, version, requestId,
+                instanceIdMap, requestHandlerUtils.getRequestUri(requestContext, uriPrefix));
+    }
+
+    /**
+     *
+     * GET requests for slice subnet capabilities on a specified version
+     *
+     * @param version
+     * @return
+     * @throws ApiException
+     */
+    @GET
+    @Path("/{version:[vV][1]}/subnetCapabilityQuery")
+    @Operation(description = "Provides subnet capability based on subnet types", responses = @ApiResponse(
+            content = @Content(array = @ArraySchema(schema = @Schema(implementation = Response.class)))))
+    @Produces(MediaType.APPLICATION_JSON)
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response getSliceSubnetCapabilities(QuerySubnetCapability request, @PathParam("version") String version)
+            throws ApiException {
+        logger.debug("Request received {}", request);
+        String subnetType = null;
+        return getSubnetCapabilities(subnetType, version);
+    }
+
+    /**
+     * Process allocate service request and send request to corresponding workflow
+     *
+     * @param request
+     * @param action
+     * @param version
+     * @return
+     * @throws ApiException
+     */
+    private Response processServiceInstanceRequest(Allocate3gppService request, Action action, String version,
+            String requestId, HashMap<String, String> instanceIdMap, String requestUri) throws ApiException {
+        String defaultServiceModelName = "COMMON_SS_DEFAULT";
+        String requestScope = ModelType.service.name();
+        String apiVersion = version.substring(1);
+        String serviceRequestJson = toString.apply(request);
+        if (serviceRequestJson != null) {
+            InfraActiveRequests currentActiveReq = createRequestObject(request, action, requestId, Status.IN_PROGRESS,
+                    requestScope, serviceRequestJson);
+            String instanceName = request.getName();
+            requestHandlerUtils.checkForDuplicateRequests(action, instanceIdMap, requestScope, currentActiveReq,
+                    instanceName);
+            try {
+                requestsDbClient.save(currentActiveReq);
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_DB_ACCESS_EXC, ErrorCode.DataError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new RequestDbFailureException.Builder(SAVE_TO_DB, e.toString(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_DETAILED_SERVICE_ERROR).cause(e)
+                                .errorInfo(errorLoggerInfo).build();
+            }
+
+            RecipeLookupResult recipeLookupResult;
+            try {
+                recipeLookupResult =
+                        getServiceInstanceOrchestrationURI(request.getModelUuid(), action, defaultServiceModelName);
+            } catch (Exception e) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ACCESS_EXC.toString(), MSO_PROP_APIHANDLER_INFRA,
+                        ErrorCode.AvailabilityError.getValue(), "Exception while communciate with Catalog DB", e);
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "No communication to catalog DB " + e.getMessage(),
+                        ErrorNumbers.SVC_NO_SERVER_RESOURCES, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            if (recipeLookupResult == null) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ATTRIBUTE_NOT_FOUND.toString(),
+                        MSO_PROP_APIHANDLER_INFRA, ErrorCode.DataError.getValue(), "No recipe found in DB");
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "Recipe does not exist in catalog DB",
+                        ErrorNumbers.SVC_GENERAL_SERVICE_ERROR, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            String serviceInstanceType = request.getSubscriptionServiceType();
+            RequestClientParameter parameter;
+            try {
+                parameter = new RequestClientParameter.Builder().setRequestId(requestId).setBaseVfModule(false)
+                        .setRecipeTimeout(recipeLookupResult.getRecipeTimeout()).setRequestAction(action.name())
+                        .setServiceInstanceId(null).setServiceType(serviceInstanceType)
+                        .setRequestDetails(serviceRequestJson).setApiVersion(version).setALaCarte(false)
+                        .setRecipeParamXsd(recipeLookupResult.getRecipeParamXsd()).setApiVersion(apiVersion).build();
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, ErrorCode.SchemaError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new ValidateException.Builder("Unable to generate RequestClientParamter object" + e.getMessage(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo)
+                                .build();
+            }
+            return postBPELRequest(currentActiveReq, parameter, recipeLookupResult.getOrchestrationURI(), requestScope);
+        } else {
+            Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR,
+                    MsoException.ServiceException, "JsonProcessingException occurred - serviceRequestJson is null",
+                    ErrorNumbers.SVC_BAD_PARAMETER, null, version);
+            return response;
+        }
+    }
+
+    /**
+     * process modify service request and call corresponding workflow
+     *
+     * @param request
+     * @param action
+     * @param version
+     * @return
+     * @throws ApiException
+     */
+    private Response updateServiceInstances(Modify3gppService request, Action action, String version, String requestId,
+            HashMap<String, String> instanceIdMap, String requestUri) throws ApiException {
+        String defaultServiceModelName = "COMMON_SS_DEFAULT";
+        String requestScope = ModelType.service.name();
+        String apiVersion = version.substring(1);
+        String serviceRequestJson = toString.apply(request);
+        if (serviceRequestJson != null) {
+            InfraActiveRequests currentActiveReq = createRequestObject(request, action, requestId, Status.IN_PROGRESS,
+                    requestScope, serviceRequestJson);
+            String instanceName = request.getName();
+            requestHandlerUtils.checkForDuplicateRequests(action, instanceIdMap, requestScope, currentActiveReq,
+                    instanceName);
+            try {
+                requestsDbClient.save(currentActiveReq);
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_DB_ACCESS_EXC, ErrorCode.DataError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new RequestDbFailureException.Builder(SAVE_TO_DB, e.toString(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_DETAILED_SERVICE_ERROR).cause(e)
+                                .errorInfo(errorLoggerInfo).build();
+            }
+
+            RecipeLookupResult recipeLookupResult;
+            try {
+                recipeLookupResult = getServiceInstanceOrchestrationURI(null, action, defaultServiceModelName);
+            } catch (Exception e) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ACCESS_EXC.toString(), MSO_PROP_APIHANDLER_INFRA,
+                        ErrorCode.AvailabilityError.getValue(), "Exception while communciate with Catalog DB", e);
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "No communication to catalog DB " + e.getMessage(),
+                        ErrorNumbers.SVC_NO_SERVER_RESOURCES, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            if (recipeLookupResult == null) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ATTRIBUTE_NOT_FOUND.toString(),
+                        MSO_PROP_APIHANDLER_INFRA, ErrorCode.DataError.getValue(), "No recipe found in DB");
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "Recipe does not exist in catalog DB",
+                        ErrorNumbers.SVC_GENERAL_SERVICE_ERROR, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            String serviceInstanceType = request.getSubscriptionServiceType();
+            String serviceInstanceId = request.getServiceInstanceID();
+            RequestClientParameter parameter;
+            try {
+                parameter = new RequestClientParameter.Builder().setRequestId(requestId).setBaseVfModule(false)
+                        .setRecipeTimeout(recipeLookupResult.getRecipeTimeout()).setRequestAction(action.name())
+                        .setServiceInstanceId(serviceInstanceId).setServiceType(serviceInstanceType)
+                        .setRequestDetails(serviceRequestJson).setApiVersion(version).setALaCarte(false)
+                        .setRecipeParamXsd(recipeLookupResult.getRecipeParamXsd()).setApiVersion(apiVersion).build();
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, ErrorCode.SchemaError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new ValidateException.Builder("Unable to generate RequestClientParamter object" + e.getMessage(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo)
+                                .build();
+            }
+            return postBPELRequest(currentActiveReq, parameter, recipeLookupResult.getOrchestrationURI(), requestScope);
+
+        } else {
+            Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR,
+                    MsoException.ServiceException, "JsonProcessingException occurred - serviceRequestJson is null",
+                    ErrorNumbers.SVC_BAD_PARAMETER, null, version);
+            return response;
+        }
+    }
+
+    /**
+     * process delete service instance request and call corresponding workflow
+     *
+     * @param request
+     * @param action
+     * @param version
+     * @return
+     * @throws ApiException
+     */
+    private Response deleteServiceInstances(DeAllocate3gppService request, Action action, String version,
+            String requestId, HashMap<String, String> instanceIdMap, String requestUri) throws ApiException {
+        String defaultServiceModelName = "COMMON_SS_DEFAULT";
+        String requestScope = ModelType.service.name();
+        String apiVersion = version.substring(1);
+        String serviceRequestJson = toString.apply(request);
+        if (serviceRequestJson != null) {
+            InfraActiveRequests currentActiveReq = createRequestObject(request, action, requestId, Status.IN_PROGRESS,
+                    requestScope, serviceRequestJson);
+            requestHandlerUtils.checkForDuplicateRequests(action, instanceIdMap, requestScope, currentActiveReq, null);
+            try {
+                requestsDbClient.save(currentActiveReq);
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_DB_ACCESS_EXC, ErrorCode.DataError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new RequestDbFailureException.Builder(SAVE_TO_DB, e.toString(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_DETAILED_SERVICE_ERROR).cause(e)
+                                .errorInfo(errorLoggerInfo).build();
+            }
+            RecipeLookupResult recipeLookupResult;
+            try {
+                recipeLookupResult = getServiceInstanceOrchestrationURI(null, action, defaultServiceModelName);
+            } catch (Exception e) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ACCESS_EXC.toString(), MSO_PROP_APIHANDLER_INFRA,
+                        ErrorCode.AvailabilityError.getValue(), "Exception while communciate with Catalog DB", e);
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "No communication to catalog DB " + e.getMessage(),
+                        ErrorNumbers.SVC_NO_SERVER_RESOURCES, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            if (recipeLookupResult == null) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ATTRIBUTE_NOT_FOUND.toString(),
+                        MSO_PROP_APIHANDLER_INFRA, ErrorCode.DataError.getValue(), "No recipe found in DB");
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "Recipe does not exist in catalog DB",
+                        ErrorNumbers.SVC_GENERAL_SERVICE_ERROR, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            String serviceInstanceType = request.getSubscriptionServiceType();
+            String serviceInstanceId = request.getServiceInstanceID();
+            RequestClientParameter parameter;
+            try {
+                parameter = new RequestClientParameter.Builder().setRequestId(requestId).setBaseVfModule(false)
+                        .setRecipeTimeout(recipeLookupResult.getRecipeTimeout()).setRequestAction(action.name())
+                        .setServiceInstanceId(serviceInstanceId).setServiceType(serviceInstanceType)
+                        .setRequestDetails(serviceRequestJson).setApiVersion(version).setALaCarte(false)
+                        .setRecipeParamXsd(recipeLookupResult.getRecipeParamXsd()).setApiVersion(apiVersion).build();
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, ErrorCode.SchemaError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new ValidateException.Builder("Unable to generate RequestClientParamter object" + e.getMessage(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo)
+                                .build();
+            }
+            return postBPELRequest(currentActiveReq, parameter, recipeLookupResult.getOrchestrationURI(), requestScope);
+        } else {
+            Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR,
+                    MsoException.ServiceException, "JsonProcessingException occurred - serviceRequestJson is null",
+                    ErrorNumbers.SVC_BAD_PARAMETER, null, version);
+            return response;
+        }
+    }
+
+    /**
+     * process activate/deactivate service request and call corresponding workflow
+     *
+     * @param request the request object for activate/deactivate service
+     * @param action the action for the service
+     * @param version
+     * @return
+     * @throws ApiException
+     */
+    private Response activateOrDeactivateServiceInstances(ActivateOrDeactivate3gppService request, Action action,
+            String version, String requestId, HashMap<String, String> instanceIdMap, String requestUri)
+            throws ApiException {
+        String defaultServiceModelName = "COMMON_SS_DEFAULT";
+        String requestScope = ModelType.service.name();
+        String apiVersion = version.substring(1);
+        String serviceRequestJson = toString.apply(request);
+        if (serviceRequestJson != null) {
+            InfraActiveRequests currentActiveReq = createRequestObject(request, action, requestId, Status.IN_PROGRESS,
+                    requestScope, serviceRequestJson);
+            if (action == Action.activateInstance) {
+                requestHandlerUtils.checkForDuplicateRequests(action, instanceIdMap, requestScope, currentActiveReq,
+                        request.getServiceInstanceID());
+            } else {
+                requestHandlerUtils.checkForDuplicateRequests(action, instanceIdMap, requestScope, currentActiveReq,
+                        null);
+            }
+            try {
+                requestsDbClient.save(currentActiveReq);
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_DB_ACCESS_EXC, ErrorCode.DataError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new RequestDbFailureException.Builder(SAVE_TO_DB, e.toString(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_DETAILED_SERVICE_ERROR).cause(e)
+                                .errorInfo(errorLoggerInfo).build();
+            }
+            RecipeLookupResult recipeLookupResult;
+            try {
+                recipeLookupResult = getServiceInstanceOrchestrationURI(null, action, defaultServiceModelName);
+            } catch (Exception e) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ACCESS_EXC.toString(), MSO_PROP_APIHANDLER_INFRA,
+                        ErrorCode.AvailabilityError.getValue(), "Exception while communciate with Catalog DB", e);
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "No communication to catalog DB " + e.getMessage(),
+                        ErrorNumbers.SVC_NO_SERVER_RESOURCES, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            if (recipeLookupResult == null) {
+                logger.error(LoggingAnchor.FOUR, MessageEnum.APIH_DB_ATTRIBUTE_NOT_FOUND.toString(),
+                        MSO_PROP_APIHANDLER_INFRA, ErrorCode.DataError.getValue(), "No recipe found in DB");
+                Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_NOT_FOUND,
+                        MsoException.ServiceException, "Recipe does not exist in catalog DB",
+                        ErrorNumbers.SVC_GENERAL_SERVICE_ERROR, null, version);
+                logger.debug(END_OF_THE_TRANSACTION + response.getEntity());
+                return response;
+            }
+
+            String serviceInstanceType = request.getSubscriptionServiceType();
+            String serviceInstanceId = request.getServiceInstanceID();
+            RequestClientParameter parameter;
+            try {
+                parameter = new RequestClientParameter.Builder().setRequestId(requestId).setBaseVfModule(false)
+                        .setRecipeTimeout(recipeLookupResult.getRecipeTimeout()).setRequestAction(action.name())
+                        .setServiceInstanceId(serviceInstanceId).setServiceType(serviceInstanceType)
+                        .setRequestDetails(serviceRequestJson).setApiVersion(version).setALaCarte(false)
+                        .setRecipeParamXsd(recipeLookupResult.getRecipeParamXsd()).setApiVersion(apiVersion).build();
+            } catch (Exception e) {
+                logger.error("Exception occurred", e);
+                ErrorLoggerInfo errorLoggerInfo =
+                        new ErrorLoggerInfo.Builder(MessageEnum.APIH_BPEL_RESPONSE_ERROR, ErrorCode.SchemaError)
+                                .errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
+                throw new ValidateException.Builder("Unable to generate RequestClientParamter object" + e.getMessage(),
+                        HttpStatus.SC_INTERNAL_SERVER_ERROR, ErrorNumbers.SVC_BAD_PARAMETER).errorInfo(errorLoggerInfo)
+                                .build();
+            }
+            return postBPELRequest(currentActiveReq, parameter, recipeLookupResult.getOrchestrationURI(), requestScope);
+        } else {
+            Response response = msoRequest.buildServiceErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR,
+                    MsoException.ServiceException, "JsonProcessingException occurred - serviceRequestJson is null",
+                    ErrorNumbers.SVC_BAD_PARAMETER, null, version);
+            return response;
+        }
+    }
+
+    // To be implemented for fetching Subnet capabilities
+    private Response getSubnetCapabilities(String subnetType, String version) throws ApiException {
+        return null;
+    }
+
+    /**
+     * Getting recipes from catalogDb
+     *
+     * @param serviceModelUUID the service model version uuid
+     * @param action the action for the service
+     * @param defaultServiceModelName default service name
+     * @return the service recipe result
+     */
+    private RecipeLookupResult getServiceInstanceOrchestrationURI(String serviceModelUUID, Action action,
+            String defaultServiceModelName) {
+
+        RecipeLookupResult recipeLookupResult = getServiceURI(serviceModelUUID, action, defaultServiceModelName);
+
+        if (recipeLookupResult != null) {
+            logger.debug("Orchestration URI is: " + recipeLookupResult.getOrchestrationURI() + ", recipe Timeout is: "
+                    + Integer.toString(recipeLookupResult.getRecipeTimeout()));
+        } else {
+            logger.debug("No matching recipe record found");
+        }
+        return recipeLookupResult;
+    }
+
+    /**
+     * Getting recipes from catalogDb If Service recipe is not set, use default recipe, if set , use special recipe.
+     *
+     * @param serviceModelUUID the service version uuid
+     * @param action the action of the service.
+     * @param defaultServiceModelName default service name
+     * @return the service recipe result.
+     */
+    private RecipeLookupResult getServiceURI(String serviceModelUUID, Action action, String defaultServiceModelName) {
+
+        Service defaultServiceRecord =
+                catalogDbClient.getFirstByModelNameOrderByModelVersionDesc(defaultServiceModelName);
+        // set recipe as default generic recipe
+        ServiceRecipe recipe =
+                catalogDbClient.getFirstByServiceModelUUIDAndAction(defaultServiceRecord.getModelUUID(), action.name());
+        // check the service special recipe
+        if (null != serviceModelUUID && !serviceModelUUID.isEmpty()) {
+            ServiceRecipe serviceSpecialRecipe =
+                    catalogDbClient.getFirstByServiceModelUUIDAndAction(serviceModelUUID, action.name());
+            if (null != serviceSpecialRecipe) {
+                // set service special recipe.
+                recipe = serviceSpecialRecipe;
+            }
+        }
+
+        if (recipe == null) {
+            return null;
+        }
+        return new RecipeLookupResult(recipe.getOrchestrationUri(), recipe.getRecipeTimeout(), recipe.getParamXsd());
+
+    }
+
+    Function<Object, String> toString = serviceRequest -> {
+        ObjectMapper mapper = new ObjectMapper();
+        String requestAsString = null;
+        try {
+            requestAsString = mapper.writeValueAsString(serviceRequest);
+        } catch (JsonProcessingException e) {
+            logger.debug("Exception while converting service request object to String {}", e);
+        }
+        return requestAsString;
+    };
+
+    public InfraActiveRequests createRequestObject(Object request, Action action, String requestId, Status status,
+            String requestScope, String requestJson) {
+        InfraActiveRequests aq = new InfraActiveRequests();
+        try {
+            String networkType = null;
+            String serviceInstanceName = null;
+            String serviceInstanceId = null;
+            if (action.name().equals("createInstance")) {
+                networkType = ((Allocate3gppService) request).getNetworkType();
+                serviceInstanceName = ((Allocate3gppService) request).getName();
+                aq.setServiceInstanceName(serviceInstanceName);
+            } else if (action.name().equals("updateInstance")) {
+                networkType = ((Modify3gppService) request).getNetworkType();
+                serviceInstanceName = ((Modify3gppService) request).getName();
+                serviceInstanceId = ((Modify3gppService) request).getServiceInstanceID();
+                aq.setServiceInstanceName(serviceInstanceName);
+                aq.setServiceInstanceId(serviceInstanceId);
+            } else if (action.name().equals("deleteInstance")) {
+                networkType = ((DeAllocate3gppService) request).getNetworkType();
+                serviceInstanceId = ((DeAllocate3gppService) request).getServiceInstanceID();
+                aq.setServiceInstanceId(serviceInstanceId);
+            } else if (action.name().equals("activateInstance")) {
+                networkType = ((ActivateOrDeactivate3gppService) request).getNetworkType();
+                serviceInstanceId = ((ActivateOrDeactivate3gppService) request).getServiceInstanceID();
+                aq.setServiceInstanceName(serviceInstanceId); // setting serviceInstanceId as serviceInstanceName
+                                                              // -->serviceInstanceName shouldn't be null for action -
+                                                              // activateInstance duplicateRequests check
+                aq.setServiceInstanceId(serviceInstanceId);
+            } else if (action.name().equals("deactivateInstance")) {
+                networkType = ((ActivateOrDeactivate3gppService) request).getNetworkType();
+                serviceInstanceId = ((ActivateOrDeactivate3gppService) request).getServiceInstanceID();
+                aq.setServiceInstanceId(serviceInstanceId);
+            }
+
+            aq.setRequestId(requestId);
+            aq.setRequestAction(action.toString());
+            aq.setRequestUrl(MDC.get(LogConstants.HTTP_URL));
+            Timestamp startTimeStamp = new Timestamp(System.currentTimeMillis());
+            aq.setStartTime(startTimeStamp);
+            aq.setRequestScope(requestScope);
+            aq.setRequestBody(requestJson);
+            aq.setRequestStatus(status.toString());
+            aq.setLastModifiedBy(Constants.MODIFIED_BY_APIHANDLER);
+            aq.setNetworkType(networkType);
+        } catch (Exception e) {
+            logger.error("Exception when creation record request", e);
+
+            if (!status.equals(Status.FAILED)) {
+                throw e;
+            }
+        }
+        return aq;
+    }
+
+    private Response postBPELRequest(InfraActiveRequests currentActiveReq, RequestClientParameter parameter,
+            String orchestrationURI, String requestScope) throws ApiException {
+        ResponseEntity<String> response =
+                requestHandlerUtils.postRequest(currentActiveReq, parameter, orchestrationURI);
+        logger.debug("BPEL response : " + response);
+        int bpelStatus = responseHandler.setStatus(response.getStatusCodeValue());
+        String jsonResponse;
+        try {
+            responseHandler.acceptedResponse(response);
+            CamundaResponse camundaResponse = responseHandler.getCamundaResponse(response);
+            String responseBody = camundaResponse.getResponse();
+            if ("Success".equalsIgnoreCase(camundaResponse.getMessage())) {
+                jsonResponse = responseBody;
+            } else {
+                BPMNFailureException bpmnException =
+                        new BPMNFailureException.Builder(String.valueOf(bpelStatus) + responseBody, bpelStatus,
+                                ErrorNumbers.SVC_DETAILED_SERVICE_ERROR).build();
+                requestHandlerUtils.updateStatus(currentActiveReq, Status.FAILED, bpmnException.getMessage());
+                throw bpmnException;
+            }
+        } catch (ApiException e) {
+            requestHandlerUtils.updateStatus(currentActiveReq, Status.FAILED, e.getMessage());
+            throw e;
+        }
+        return builder.buildResponse(HttpStatus.SC_ACCEPTED, parameter.getRequestId(), jsonResponse,
+                parameter.getApiVersion());
+    }
+}
+
+
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/ActivateOrDeactivate3gppService.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/ActivateOrDeactivate3gppService.java
new file mode 100644
index 0000000000..3f094a8cc9
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/ActivateOrDeactivate3gppService.java
@@ -0,0 +1,98 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+import java.util.HashMap;
+import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * Model class for 3GPP service instance Activate request
+ */
+
+public class ActivateOrDeactivate3gppService {
+
+    @JsonProperty("serviceInstanceID")
+    private String serviceInstanceID;
+
+    @JsonProperty("globalSubscriberId")
+    private String globalSubscriberId;
+
+    @JsonProperty("subscriptionServiceType")
+    private String subscriptionServiceType;
+
+    @JsonProperty("networkType")
+    private String networkType;
+
+    @JsonProperty("additionalProperties")
+    private Map<String, Object> additionalProperties = new HashMap<>();
+
+    public String getServiceInstanceID() {
+        return serviceInstanceID;
+    }
+
+    public void setServiceInstanceID(String serviceInstanceID) {
+        this.serviceInstanceID = serviceInstanceID;
+    }
+
+    public String getGlobalSubscriberId() {
+        return globalSubscriberId;
+    }
+
+    public void setGlobalSubscriberId(String globalSubscriberId) {
+        this.globalSubscriberId = globalSubscriberId;
+    }
+
+    public String getSubscriptionServiceType() {
+        return subscriptionServiceType;
+    }
+
+    public void setSubscriptionServiceType(String subscriptionServiceType) {
+        this.subscriptionServiceType = subscriptionServiceType;
+    }
+
+    public String getNetworkType() {
+        return networkType;
+    }
+
+    public void setNetworkType(String networkType) {
+        this.networkType = networkType;
+    }
+
+    public Map<String, Object> getAdditionalProperties() {
+        return additionalProperties;
+    }
+
+    public void setAdditionalProperties(Map<String, Object> additionalProperties) {
+        this.additionalProperties = additionalProperties;
+    }
+
+
+    @Override
+    public String toString() {
+        return "ActivateOrDeactivate3gppService [serviceInstanceID=" + serviceInstanceID + ", globalSubscriberId="
+                + globalSubscriberId + ", subscriptionServiceType=" + subscriptionServiceType + ", networkType="
+                + networkType + ", additionalProperties=" + additionalProperties + "]";
+    }
+
+}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Allocate3gppService.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Allocate3gppService.java
new file mode 100644
index 0000000000..0444e66842
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Allocate3gppService.java
@@ -0,0 +1,117 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+import java.util.HashMap;
+import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * Model class for 3GPP service instance create request
+ */
+public class Allocate3gppService {
+
+    @JsonProperty("name")
+    private String name;
+
+    @JsonProperty("modelInvariantUuid")
+    private String modelInvariantUuid;
+
+    @JsonProperty("modelUuid")
+    private String modelUuid;
+
+    @JsonProperty("globalSubscriberId")
+    private String globalSubscriberId;
+
+    @JsonProperty("subscriptionServiceType")
+    private String subscriptionServiceType;
+
+    @JsonProperty("networkType")
+    private String networkType;
+
+    @JsonProperty("additionalProperties")
+    private Map<String, Object> additionalProperties = new HashMap<>();
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getModelInvariantUuid() {
+        return modelInvariantUuid;
+    }
+
+    public void setModelInvariantUuid(String modelInvariantUuid) {
+        this.modelInvariantUuid = modelInvariantUuid;
+    }
+
+    public String getModelUuid() {
+        return modelUuid;
+    }
+
+    public void setModelUuid(String modelUuid) {
+        this.modelUuid = modelUuid;
+    }
+
+    public String getGlobalSubscriberId() {
+        return globalSubscriberId;
+    }
+
+    public void setGlobalSubscriberId(String globalSubscriberId) {
+        this.globalSubscriberId = globalSubscriberId;
+    }
+
+    public String getSubscriptionServiceType() {
+        return subscriptionServiceType;
+    }
+
+    public void setSubscriptionServiceType(String subscriptionServiceType) {
+        this.subscriptionServiceType = subscriptionServiceType;
+    }
+
+    public String getNetworkType() {
+        return networkType;
+    }
+
+    public void setNetworkType(String networkType) {
+        this.networkType = networkType;
+    }
+
+    public Map<String, Object> getAdditionalProperties() {
+        return additionalProperties;
+    }
+
+    public void setAdditionalProperties(Map<String, Object> additionalProperties) {
+        this.additionalProperties = additionalProperties;
+    }
+
+    @Override
+    public String toString() {
+        return "Allocate3gppService [name=" + name + ", modelInvariantUuid=" + modelInvariantUuid + ", modelUuid="
+                + modelUuid + ", globalSubscriberId=" + globalSubscriberId + ", subscriptionServiceType="
+                + subscriptionServiceType + ", networkType=" + networkType + ", additionalProperties="
+                + additionalProperties + "]";
+    }
+
+}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/DeAllocate3gppService.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/DeAllocate3gppService.java
new file mode 100644
index 0000000000..24ebb6b410
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/DeAllocate3gppService.java
@@ -0,0 +1,94 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+import java.util.HashMap;
+import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * Model class for 3GPP service instance terminate request
+ */
+public class DeAllocate3gppService {
+
+    @JsonProperty("serviceInstanceID")
+    private String serviceInstanceID;
+
+    @JsonProperty("globalSubscriberId")
+    private String globalSubscriberId;
+
+    @JsonProperty("subscriptionServiceType")
+    private String subscriptionServiceType;
+
+    @JsonProperty("networkType")
+    private String networkType;
+
+    @JsonProperty("additionalProperties")
+    private Map<String, Object> additionalProperties = new HashMap<>();
+
+    public String getServiceInstanceID() {
+        return serviceInstanceID;
+    }
+
+    public void setServiceInstanceID(String serviceInstanceID) {
+        this.serviceInstanceID = serviceInstanceID;
+    }
+
+    public String getGlobalSubscriberId() {
+        return globalSubscriberId;
+    }
+
+    public void setGlobalSubscriberId(String globalSubscriberId) {
+        this.globalSubscriberId = globalSubscriberId;
+    }
+
+    public String getSubscriptionServiceType() {
+        return subscriptionServiceType;
+    }
+
+    public void setSubscriptionServiceType(String subscriptionServiceType) {
+        this.subscriptionServiceType = subscriptionServiceType;
+    }
+
+    public String getNetworkType() {
+        return networkType;
+    }
+
+    public void setNetworkType(String networkType) {
+        this.networkType = networkType;
+    }
+
+    public Map<String, Object> getAdditionalProperties() {
+        return additionalProperties;
+    }
+
+    public void setAdditionalProperties(Map<String, Object> additionalProperties) {
+        this.additionalProperties = additionalProperties;
+    }
+
+    @Override
+    public String toString() {
+        return "DeAllocate3gppService [serviceInstanceID=" + serviceInstanceID + ", globalSubscriberId="
+                + globalSubscriberId + ", subscriptionServiceType=" + subscriptionServiceType + ", networkType="
+                + networkType + ", additionalProperties=" + additionalProperties + "]";
+    }
+
+}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Modify3gppService.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Modify3gppService.java
new file mode 100644
index 0000000000..ffe76c06ef
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/Modify3gppService.java
@@ -0,0 +1,105 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+import java.util.HashMap;
+import java.util.Map;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * Model class for 3GPP service instance Update request
+ */
+public class Modify3gppService {
+
+    @JsonProperty("name")
+    private String name;
+
+    @JsonProperty("serviceInstanceID")
+    private String serviceInstanceID;
+
+    @JsonProperty("globalSubscriberId")
+    private String globalSubscriberId;
+
+    @JsonProperty("subscriptionServiceType")
+    private String subscriptionServiceType;
+
+    @JsonProperty("networkType")
+    private String networkType;
+
+    @JsonProperty("additionalProperties")
+    private Map<String, Object> additionalProperties = new HashMap<>();
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getServiceInstanceID() {
+        return serviceInstanceID;
+    }
+
+    public void setServiceInstanceID(String serviceInstanceID) {
+        this.serviceInstanceID = serviceInstanceID;
+    }
+
+    public String getGlobalSubscriberId() {
+        return globalSubscriberId;
+    }
+
+    public void setGlobalSubscriberId(String globalSubscriberId) {
+        this.globalSubscriberId = globalSubscriberId;
+    }
+
+    public String getSubscriptionServiceType() {
+        return subscriptionServiceType;
+    }
+
+    public void setSubscriptionServiceType(String subscriptionServiceType) {
+        this.subscriptionServiceType = subscriptionServiceType;
+    }
+
+    public String getNetworkType() {
+        return networkType;
+    }
+
+    public void setNetworkType(String networkType) {
+        this.networkType = networkType;
+    }
+
+    public Map<String, Object> getAdditionalProperties() {
+        return additionalProperties;
+    }
+
+    public void setAdditionalProperties(Map<String, Object> additionalProperties) {
+        this.additionalProperties = additionalProperties;
+    }
+
+    @Override
+    public String toString() {
+        return "Modify3gppService [name=" + name + ", serviceInstanceID=" + serviceInstanceID + ", globalSubscriberId="
+                + globalSubscriberId + ", subscriptionServiceType=" + subscriptionServiceType + ", networkType="
+                + networkType + ", additionalProperties=" + additionalProperties + "]";
+    }
+
+}
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/QuerySubnetCapability.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/QuerySubnetCapability.java
new file mode 100644
index 0000000000..2e479e1ecb
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/QuerySubnetCapability.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+
+import java.util.List;
+
+/**
+ * Model class for slice subnet capability query
+ */
+public class QuerySubnetCapability {
+
+    private SubnetTypes subnetType;
+
+    public SubnetTypes getSubnetType() {
+        return subnetType;
+    }
+
+    public void setSubnetType(SubnetTypes subnetType) {
+        this.subnetType = subnetType;
+    }
+
+    @Override
+    public String toString() {
+        return "QuerySubnetCapability [subnetType=" + subnetType + "]";
+    }
+
+}
+
diff --git a/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/SubnetTypes.java b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/SubnetTypes.java
new file mode 100644
index 0000000000..5d6deb7158
--- /dev/null
+++ b/mso-api-handlers/mso-api-handler-infra/src/main/java/org/onap/so/apihandlerinfra/onap3gppserviceinstancebeans/SubnetTypes.java
@@ -0,0 +1,25 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.apihandlerinfra.onap3gppserviceinstancebeans;
+
+public enum SubnetTypes {
+    AN, AN_NF, CN, TN_FH, TN_MH, TN_BH
+}