Implement Deallocate Core NSSMF workflow

Issue-ID: SO-3238
Signed-off-by: alexanb <alexander.borovitzky@guest.telecomitalia.it>
Change-Id: I751c2b5f0ea5fba3f814ab70c627fb96242a54c3

1 files changed, 844 insertions, 0 deletions

diff --git a/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoDeallocateCoreNSSI.groovy b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoDeallocateCoreNSSI.groovy
new file mode 100644
index 0000000000..fcb3b52322
--- /dev/null
+++ b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoDeallocateCoreNSSI.groovy
@@ -0,0 +1,844 @@
+package org.onap.so.bpmn.infrastructure.scripts
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import org.camunda.bpm.engine.delegate.DelegateExecution
+import org.onap.aai.domain.yang.CloudRegion
+import org.onap.aai.domain.yang.Customer
+import org.onap.aai.domain.yang.ModelVer
+import org.onap.aai.domain.yang.OwningEntities
+import org.onap.aai.domain.yang.ServiceSubscription
+import org.onap.aai.domain.yang.SliceProfile
+import org.onap.aai.domain.yang.GenericVnf
+import org.onap.aai.domain.yang.ServiceInstance
+import org.onap.aai.domain.yang.Tenant
+import org.onap.aai.domain.yang.VfModule
+import org.onap.aaiclient.client.aai.AAIObjectType
+import org.onap.aaiclient.client.aai.AAIResourcesClient
+import org.onap.aaiclient.client.aai.entities.AAIResultWrapper
+import org.onap.aaiclient.client.aai.entities.Relationships
+import org.onap.aaiclient.client.aai.entities.uri.AAIResourceUri
+import org.onap.aaiclient.client.aai.entities.uri.AAIUriFactory
+import org.onap.logging.filter.base.ONAPComponents
+import org.onap.so.bpmn.common.scripts.AbstractServiceTaskProcessor
+import org.onap.so.bpmn.common.scripts.ExceptionUtil
+import org.onap.so.bpmn.common.scripts.MsoUtils
+import org.onap.so.bpmn.common.scripts.RequestDBUtil
+import org.onap.so.bpmn.core.UrnPropertiesReader
+import org.onap.so.bpmn.core.json.JsonUtils
+import org.onap.so.client.HttpClient
+import org.onap.so.client.HttpClientFactory
+import org.onap.so.db.request.beans.OperationStatus
+import org.onap.so.requestsdb.RequestsDbConstant
+import org.onap.so.serviceinstancebeans.CloudConfiguration
+import org.onap.so.serviceinstancebeans.ModelInfo
+import org.onap.so.serviceinstancebeans.ModelType
+import org.onap.so.serviceinstancebeans.OwningEntity
+import org.onap.so.serviceinstancebeans.Project
+import org.onap.so.serviceinstancebeans.RequestDetails
+import org.onap.so.serviceinstancebeans.RequestInfo
+import org.onap.so.serviceinstancebeans.RequestParameters
+import org.onap.so.serviceinstancebeans.Resources
+import org.onap.so.serviceinstancebeans.Service
+import org.onap.so.serviceinstancebeans.SubscriberInfo
+import org.onap.so.serviceinstancebeans.VfModules
+import org.onap.so.serviceinstancebeans.Vnfs
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+
+import javax.ws.rs.core.Response
+
+class DoDeallocateCoreNSSI extends AbstractServiceTaskProcessor {
+    private final String PREFIX ="DoDeallocateCoreNSSI"
+
+    private ExceptionUtil exceptionUtil = new ExceptionUtil()
+    private RequestDBUtil requestDBUtil = new RequestDBUtil()
+    private MsoUtils utils = new MsoUtils()
+    private JsonUtils jsonUtil = new JsonUtils()
+
+    private static final Logger LOGGER = LoggerFactory.getLogger( DoDeallocateCoreNSSI.class)
+
+    @Override
+    void preProcessRequest(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start preProcessRequest")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+        if (!currentNSSI) {
+            String msg = "currentNSSI is null"
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
+        }
+
+        LOGGER.trace("***** ${PREFIX} Exit preProcessRequest")
+    }
+
+
+    /**
+     * Queries OOF for NSSI termination
+     * @param execution
+     */
+    void executeTerminateNSSIQuery(DelegateExecution execution) {
+        // TO DO: Unit test
+        LOGGER.trace("${PREFIX} Start executeTerminateNSSIQuery")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String urlString = UrnPropertiesReader.getVariable("mso.oof.endpoint", execution)
+
+        //Prepare auth for OOF
+        def authHeader = ""
+        String basicAuth = UrnPropertiesReader.getVariable("mso.oof.auth", execution)
+        String msokey = UrnPropertiesReader.getVariable("mso.msoKey", execution)
+
+        String basicAuthValue = utils.encrypt(basicAuth, msokey)
+        if (basicAuthValue != null) {
+            logger.debug( "Obtained BasicAuth username and password for OOF: " + basicAuthValue)
+            try {
+                authHeader = utils.getBasicAuth(basicAuthValue, msokey)
+                execution.setVariable("BasicAuthHeaderValue", authHeader)
+            } catch (Exception ex) {
+                logger.debug( "Unable to encode username and password string: " + ex)
+                exceptionUtil.buildAndThrowWorkflowException(execution, 401, "Internal Error - Unable to " +
+                        "encode username and password string")
+            }
+        } else {
+            logger.debug( "Unable to obtain BasicAuth - BasicAuth value null")
+            exceptionUtil.buildAndThrowWorkflowException(execution, 401, "Internal Error - BasicAuth " +
+                    "value null")
+        }
+
+        //Prepare send request to OOF
+        String oofRequest = buildOOFRequest(execution)
+
+        URL url = new URL(urlString+"/api/oof/terminate/nxi/v1")
+        HttpClient httpClient = new HttpClientFactory().newJsonClient(url, ONAPComponents.OOF)
+        httpClient.addAdditionalHeader("Authorization", authHeader)
+        httpClient.addAdditionalHeader("Accept", "application/json")
+        httpClient.addAdditionalHeader("Content-Type", "application/json")
+
+        Response httpResponse = httpClient.post(oofRequest)
+
+        int responseCode = httpResponse.getStatus()
+        logger.debug("OOF sync response code is: " + responseCode)
+
+        if(responseCode != 202){ // Accepted
+            exceptionUtil.buildAndThrowWorkflowException(execution, responseCode, "Received a Bad Sync Response from OOF.")
+        }
+
+        if(httpResponse.hasEntity()){
+            String OOFResponse = httpResponse.readEntity(Boolean.class)
+            String isTerminateNSSI = jsonUtil.getJsonValue(OOFResponse, "terminateResponse")
+
+            execution.setVariable("isTerminateNSSI", Boolean.parseBoolean(isTerminateNSSI))
+        }
+
+        LOGGER.trace("${PREFIX} Exit executeTerminateNSSIQuery")
+    }
+
+
+    /**
+     * Builds OOF request
+     * @param execution
+     * @return
+     */
+    private String buildOOFRequest(DelegateExecution execution) {
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String nssiId = currentNSSI['nssiId']
+        String requestId = execution.getVariable("mso-request-id")
+
+        String request =    "{\n" +
+                            "  \"type\": \"NSSI\",\n" +
+                            "  \"NxIId\": \"${nssiId}\",\n" +
+                            "  \"requestInfo\": {\n" +
+                            "    \"transactionId\": \"${requestId}\",\n" +
+                            "    \"requestId\": \"${requestId}\",\n" +
+                            "    \"sourceId\": \"so\",\n" +
+                            "    }\n" +
+                            "}"
+
+        return request
+    }
+
+
+
+    /**
+     * Queries Network Service Instance in AAI
+     * @param execution
+     */
+    void getNetworkServiceInstance(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start getNetworkServiceInstance")
+
+        AAIResourcesClient client = getAAIClient()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String globalSubscriberId = currentNSSI['globalSubscriberId']
+        String serviceType = currentNSSI['serviceType']
+        String nssiId = currentNSSI['nssiId']
+
+        AAIResourceUri nssiUri = AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, nssiId) //AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, globalSubscriberId, serviceType, nssiId)
+        Optional<ServiceInstance> nssiOpt = client.get(ServiceInstance.class, nssiUri)
+
+        if (nssiOpt.isPresent()) {
+            ServiceInstance nssi = nssiOpt.get()
+            currentNSSI['nssi'] = nssi
+
+            ServiceInstance networkServiceInstance = handleNetworkInstance(execution, nssiId, nssiUri, client)
+            currentNSSI['networkServiceInstance'] = networkServiceInstance
+        }
+        else {
+            String msg = String.format("NSSI %s not found in AAI", nssiId)
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+        }
+
+        LOGGER.trace("${PREFIX} Exit getNetworkServiceInstance")
+    }
+
+
+    /**
+     * Handles Network Service
+     * @param nssiId
+     * @param nssiUri
+     * @param client
+     * @return Network Service Instance
+     */
+    private ServiceInstance handleNetworkInstance(DelegateExecution execution, String nssiId, AAIResourceUri nssiUri, AAIResourcesClient client ) {
+        ServiceInstance networkServiceInstance = null
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        AAIResultWrapper wrapper = client.get(nssiUri)
+        Optional<Relationships> relationships = wrapper.getRelationships()
+
+        if (relationships.isPresent()) {
+            for (AAIResourceUri networkServiceInstanceUri : relationships.get().getRelatedAAIUris(AAIObjectType.SERVICE_INSTANCE)) {
+                Optional<ServiceInstance> networkServiceInstanceOpt = client.get(ServiceInstance.class, networkServiceInstanceUri)
+                if (networkServiceInstanceOpt.isPresent()) {
+                    networkServiceInstance = networkServiceInstanceOpt.get()
+
+                    if (networkServiceInstance.getServiceRole().equals("Network Service")) { // Network Service role
+                        currentNSSI['networkServiceInstanceUri'] = networkServiceInstanceUri
+                        break
+                    }
+                }
+                else {
+                    String msg = String.format("No Network Service Instance found for NSSI %s in AAI", nssiId)
+                    LOGGER.error(msg)
+                    exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+                }
+            }
+        }
+        else {
+            String msg = String.format("No relationship presented for NSSI %s in AAI", nssiId)
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+        }
+
+        if(networkServiceInstance == null) {
+            String msg = String.format("No Network Service Instance found for NSSI %s in AAI", nssiId)
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+        }
+
+        return networkServiceInstance
+    }
+
+
+    /**
+     * Invokes deleteServiceOrder external API
+     * @param execution
+     */
+    void deleteServiceOrder(DelegateExecution execution) {
+        // TO DO: Unit test
+        LOGGER.trace("${PREFIX} Start deleteServiceOrder")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        try {
+            //url:/nbi/api/v4/serviceOrder/"
+            def nbiEndpointUrl = UrnPropertiesReader.getVariable("nbi.endpoint.url", execution) // ???
+
+            ServiceInstance networkServiceInstance = (ServiceInstance)currentNSSI['networkServiceInstance']
+
+            String url = String.format("${nbiEndpointUrl}/api/v4/serviceOrder/%s", networkServiceInstance.getServiceInstanceId()) // Service Order ID = Network Service Instance ID ???
+
+            String msoKey = UrnPropertiesReader.getVariable("mso.msoKey", execution)
+            String basicAuth =  UrnPropertiesReader.getVariable("mso.infra.endpoint.auth", execution)
+            String basicAuthValue = utils.encrypt(basicAuth, msoKey)
+            String encodeString = utils.getBasicAuth(basicAuthValue, msoKey)
+
+            HttpClient httpClient = getHttpClientFactory().newJsonClient(new URL(url), ONAPComponents.EXTERNAL)
+            httpClient.addAdditionalHeader("Authorization", encodeString)
+            httpClient.addAdditionalHeader("Accept", "application/json")
+            Response httpResponse = httpClient.delete() // check http code ???
+        } catch (any) {
+            String msg = "Exception in DoDeallocateCoreNSSI.deleteServiceOrder. " + any.getCause()
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
+        }
+
+        LOGGER.trace("${PREFIX} Exit deleteServiceOrder")
+    }
+
+
+    /**
+     * Queries constitute VNF from Network Service Instance
+     * @param execution
+     */
+    void getConstituteVNFFromNetworkServiceInst(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start getConstituteVNFFromNetworkServiceInst")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        AAIResourcesClient client = getAAIClient()
+
+        AAIResourceUri networkServiceInstanceUri = (AAIResourceUri)currentNSSI['networkServiceInstanceUri']
+        AAIResultWrapper wrapper = client.get(networkServiceInstanceUri);
+        Optional<Relationships> relationships = wrapper.getRelationships()
+        if (relationships.isPresent()) {
+            for (AAIResourceUri constituteVnfUri : relationships.get().getRelatedAAIUris(AAIObjectType.GENERIC_VNF)) {  // ???
+                execution.setVariable("constituteVnfUri", constituteVnfUri)
+                Optional<GenericVnf> constituteVnfOpt = client.get(GenericVnf.class, constituteVnfUri)
+                if(constituteVnfOpt.isPresent()) {
+                    GenericVnf constituteVnf = constituteVnfOpt.get()
+                    execution.setVariable("constituteVnf", constituteVnf)
+                }
+                else {
+                    String msg = String.format("No constitute VNF found for Network Service Instance %s in AAI", ((ServiceInstance)currentNSSI['networkServiceInstance']).getServiceInstanceId())
+                    LOGGER.error(msg)
+                    exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+                }
+
+                break  // Should be only one constitute VNF
+            }
+        }
+        else {
+            String msg = String.format("No relationship presented for Network Service Instance %s in AAI", ((ServiceInstance)currentNSSI['networkServiceInstance']).getServiceInstanceId())
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+        }
+
+        LOGGER.trace("${PREFIX} Exit getConstituteVNFFromNetworkServiceInst")
+
+    }
+
+
+    /**
+     * Retrieves NSSI associated profiles from AAI
+     * @param execution
+     */
+    void getNSSIAssociatedProfiles(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start getNSSIAssociatedProfiles")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        ServiceInstance nssi = (ServiceInstance)currentNSSI['nssi']
+
+        List<SliceProfile> associatedProfiles = nssi.getSliceProfiles().getSliceProfile()
+
+        if(associatedProfiles.isEmpty()) {
+            String msg = String.format("No associated profiles found for NSSI %s in AAI", nssi.getServiceInstanceId())
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
+        }
+        else {
+            execution.setVariable("associatedProfiles", associatedProfiles)
+        }
+
+        LOGGER.trace("${PREFIX} Exit getNSSIAssociatedProfiles")
+    }
+
+
+    /**
+     * Calculates a final list of S-NSSAI
+     * @param execution
+     */
+    void calculateSNSSAI(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start calculateSNSSAI")
+
+        List<SliceProfile> associatedProfiles = (List<SliceProfile>)execution.getVariable("associatedProfiles")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String currentSNSSAI = currentNSSI['S-NSSAI']
+
+        List<String> snssais = new ArrayList<>()
+
+        for(SliceProfile associatedProfile:associatedProfiles) {
+            if(!associatedProfile.getSNssai().equals(currentNSSI)) { // not current S-NSSAI
+                snssais.add(associatedProfile.getSNssai())
+            }
+        }
+
+        execution.setVariable("S-NSSAIs", snssais)
+
+        LOGGER.trace("${PREFIX} Exit calculateSNSSAI")
+    }
+
+
+    /**
+     * Invoke PUT Service Instance API
+     * @param execution
+     */
+    void invokePUTServiceInstance(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start invokePUTServiceInstance")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        try {
+            //url:/onap/so/infra/serviceInstantiation/v7/serviceInstances/{serviceInstanceId}/vnfs/{vnfId}"
+            def nsmfЕndpoint = UrnPropertiesReader.getVariable("mso.infra.endpoint.url", execution) // ???
+
+            ServiceInstance networkServiceInstance = (ServiceInstance)currentNSSI['networkServiceInstance']
+
+            GenericVnf constituteVnf = (GenericVnf)execution.getVariable("constituteVnf")
+
+            String url = String.format("${nsmfЕndpoint}/serviceInstantiation/v7/serviceInstances/%s/vnfs/%s", networkServiceInstance.getServiceInstanceId(), constituteVnf.getVnfId()) // ???
+
+            String msoKey = UrnPropertiesReader.getVariable("mso.msoKey", execution)
+            String basicAuth =  UrnPropertiesReader.getVariable("mso.infra.endpoint.auth", execution)
+            String basicAuthValue = utils.encrypt(basicAuth, msoKey)
+            String encodeString = utils.getBasicAuth(basicAuthValue, msoKey)
+
+            HttpClient httpClient = getHttpClientFactory().newJsonClient(new URL(url), ONAPComponents.EXTERNAL)
+            httpClient.addAdditionalHeader("Authorization", encodeString)
+            httpClient.addAdditionalHeader("Accept", "application/json")
+
+            RequestDetails requestDetails = prepareRequestDetails(execution)
+            ObjectMapper mapper = new ObjectMapper()
+            String requestDetailsStr = mapper.writeValueAsString(requestDetails)
+
+            Response httpResponse = httpClient.put(requestDetailsStr) // check http code ???
+        } catch (any) {
+            String msg = "Exception in DoDeallocateCoreNSSI.deleteServiceOrder. " + any.getCause()
+            LOGGER.error(msg)
+            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
+        }
+
+        LOGGER.trace("${PREFIX} Exit invokePUTServiceInstance")
+    }
+
+
+    /**
+     * Prepare model info
+     * @param execution
+     * @param requestDetails
+     * @return
+     */
+    private ModelInfo prepareModelInfo(DelegateExecution execution) {
+        ModelInfo modelInfo = new ModelInfo()
+
+        modelInfo.setModelType(ModelType.service)
+        modelInfo.setModelInvariantId(networkServiceInstance.getModelInvariantId())
+
+        AAIResourceUri modelVerUrl = AAIUriFactory.createResourceUri(AAIObjectType.MODEL_VER, networkServiceInstance.getModelInvariantId()) // model of Network Service Instance ???
+        Optional<ModelVer> modelVerOpt = client.get(ModelVer.class, modelVerUrl)
+
+        if (modelVerOpt.isPresent()) {
+            modelInfo.setModelVersionId(modelVerOpt.get().getModelVersionId())
+            modelInfo.setModelName(modelVerOpt.get().getModelName())
+            modelInfo.setModelVersion(modelVerOpt.get().getModelVersion())
+        }
+
+
+        return modelInfo
+    }
+
+
+    /**
+     * Prepares RequestDetails object
+     * @param execution
+     * @return
+     */
+    private RequestDetails prepareRequestDetails(DelegateExecution execution) {
+        RequestDetails requestDetails = new RequestDetails()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String globalSubscriberId = currentNSSI['globalSubscriberId']
+
+        ServiceInstance networkServiceInstance = (ServiceInstance)currentNSSI['networkServiceInstance']
+
+
+        AAIResourcesClient client = getAAIClient()
+
+        // Model Info
+        requestDetails.setModelInfo(prepareModelInfo(execution))
+
+        // Subscriber Info
+        SubscriberInfo subscriberInfo = new SubscriberInfo()
+        subscriberInfo.setGlobalSubscriberId(globalSubscriberId)
+
+        Customer customer = null
+        ServiceSubscription serviceSubscription = null
+
+        AAIResourceUri networkServiceInstanceUri = currentNSSI['networkServiceInstanceUri']
+        AAIResultWrapper wrapper = client.get(networkServiceInstanceUri)
+        Optional<Relationships> serviceSubscriptionRelationshipsOps = wrapper.getRelationships()
+        if(serviceSubscriptionRelationshipsOps.isPresent()) {
+            List<AAIResourceUri> serviceSubscriptionRelatedAAIUris = serviceSubscriptionRelationshipsOps.get().getRelatedAAIUris(AAIObjectType.SERVICE_SUBSCRIPTION)
+            if(!(serviceSubscriptionRelatedAAIUris == null || serviceSubscriptionRelatedAAIUris.isEmpty())) {
+                AAIResourceUri serviceSubscriptionUri = serviceSubscriptionRelatedAAIUris.get(0) // Many-To-One relation
+                Optional<ServiceSubscription> serviceSubscriptionOpt = client.get(ServiceSubscription.class, serviceSubscriptionUri)
+                if(serviceSubscriptionOpt.isPresent()) {
+                    serviceSubscription = serviceSubscriptionOpt.get()
+                }
+
+                wrapper = client.get(serviceSubscriptionUri)
+                Optional<Relationships> customerRelationshipsOps = wrapper.getRelationships()
+                if(customerRelationshipsOps.isPresent()) {
+                    List<AAIResourceUri> customerRelatedAAIUris = customerRelationshipsOps.get().getRelatedAAIUris(AAIObjectType.CUSTOMER)
+                    if(!(customerRelatedAAIUris == null || customerRelatedAAIUris.isEmpty())) {
+                        Optional<Customer> customerOpt = client.get(Customer.class, customerRelatedAAIUris.get(0)) // Many-To-One relation
+                        if(customerOpt.isPresent()) {
+                            customer = customerOpt.get()
+                            subscriberInfo.setSubscriberName(customer.getSubscriberName())
+                        }
+                    }
+                }
+            }
+
+        }
+        requestDetails.setSubscriberInfo(subscriberInfo)
+
+        // Request Info
+        RequestInfo requestInfo = new RequestInfo()
+        requestInfo.setInstanceName(networkServiceInstance.getServiceInstanceName())
+
+        /* No found data to provide ???
+        requestInfo.setSource()
+        requestInfo.setSuppressRollback()
+        requestInfo.setRequestorId()
+        requestInfo.setProductFamilyId()
+        */
+
+        requestDetails.setRequestInfo(requestInfo)
+
+
+        // Request Parameters
+        RequestParameters requestParameters = new RequestParameters()
+
+        // No found data to provide ??? requestParameters.setaLaCarte()
+        requestParameters.setSubscriptionServiceType(serviceSubscription.getServiceType())
+
+        // User params
+        List<Map<String, Object>> userParams = new ArrayList<>()
+        // Service
+        Service service = new Service()
+        // Model Info
+        ModelInfo serviceModelInfo = new ModelInfo()
+        serviceModelInfo.setModelType(ModelType.service)
+        serviceModelInfo.setModelInvariantId(networkServiceInstance.getModelInvariantId())
+
+        serviceModelInfo.setModelVersionId(modelInfo.get().getModelVersionId())
+        serviceModelInfo.setModelName(modelInfo.get().getModelName())
+        serviceModelInfo.setModelVersion(modelInfo.get().getModelVersion())
+
+        service.setModelInfo(serviceModelInfo)
+
+        // Resources
+        Resources resources = new Resources()
+
+        CloudRegion cloudRegion = null
+        AAIResourceUri cloudRegionRelatedAAIUri = null
+        // VNFs
+        List<Vnfs> vnfs = new ArrayList<>()
+        // VNF
+        Vnfs vnf = new Vnfs()
+
+        // Cloud configuration
+        CloudConfiguration cloudConfiguration = new CloudConfiguration()
+
+        AAIResourceUri constituteVnfUri = (AAIResourceUri)execution.getVariable("constituteVnfUri")
+        wrapper = client.get(constituteVnfUri)
+        Optional<Relationships> constituteVnfOps = wrapper.getRelationships()
+        if(constituteVnfOps.isPresent()) {
+            List<AAIResourceUri> cloudRegionRelatedAAIUris = serviceSubscriptionRelationshipsOps.get().getRelatedAAIUris(AAIObjectType.CLOUD_REGION)
+            if(!(cloudRegionRelatedAAIUris == null || cloudRegionRelatedAAIUris.isEmpty())) {
+                cloudRegionRelatedAAIUri = cloudRegionRelatedAAIUris.get(0)
+                Optional<CloudRegion> cloudRegionrOpt = client.get(CloudRegion.class, cloudRegionRelatedAAIUris.get(0))
+                if(cloudRegionrOpt.isPresent()) {
+                    cloudRegion = cloudRegionrOpt.get()
+                    cloudConfiguration.setLcpCloudRegionId(cloudRegion.getCloudRegionId())
+                    for(Tenant tenant:cloudRegion.getTenants()) {
+                        cloudConfiguration.setTenantId(tenant.getTenantId())
+                        break // only one is required
+                    }
+
+                    cloudConfiguration.setCloudOwner(cloudRegion.getCloudOwner())
+                }
+            }
+        }
+
+        vnf.setCloudConfiguration(cloudConfiguration)
+
+        // VF Modules
+        GenericVnf constituteVnf = execution.getVariable("constituteVnf")
+        List<VfModules> vfModuless = new ArrayList<>()
+        for(VfModule vfModule:constituteVnf.getVfModules()) {
+            VfModules vfmodules = new VfModules()
+
+            ModelInfo vfModuleModelInfo = new ModelInfo()
+            vfModuleModelInfo.setModelInvariantUuid(vfModule.getModelInvariantId())
+
+            AAIResourceUri vfModuleUrl = AAIUriFactory.createResourceUri(AAIObjectType.MODEL_VER, vfModule.getModelInvariantId()) // ???
+            Optional<ModelVer> vfModuleModelVerOpt = client.get(ModelVer.class, vfModuleUrl)
+
+            if (vfModuleModelVerOpt.isPresent()) {
+                vfModuleModelInfo.setModelVersionId(vfModuleModelVerOpt.get().getModelVersionId())
+                vfModuleModelInfo.setModelName(vfModuleModelVerOpt.get().getModelName())
+                vfModuleModelInfo.setModelVersion(vfModuleModelVerOpt.get().getModelVersion())
+
+                // No model customization ID
+            }
+            vfmodules.setModelInfo(vfModuleModelInfo)
+
+            vfmodules.setInstanceName(vfModule.getVfModuleName()) // ???
+
+            vfModuless.add(vfmodules)
+        }
+        vnf.setVfModules(vfModuless)
+
+        // Model Info
+        ModelInfo vnfModelInfo = new ModelInfo()
+        vnfModelInfo.setModelInvariantUuid(constituteVnf.getModelInvariantId())
+        AAIResourceUri vnfModelUrl = AAIUriFactory.createResourceUri(AAIObjectType.MODEL_VER, constituteVnf.getModelInvariantId()) // ???
+        Optional<ModelVer> vnfModelVerOpt = client.get(ModelVer.class, vnfModelUrl)
+
+        if (vnfModelVerOpt.isPresent()) {
+            vnfModelInfo.setModelVersionId(vnfModelVerOpt.get().getModelVersionId())
+            vnfModelInfo.setModelName(vnfModelVerOpt.get().getModelName())
+            vnfModelInfo.setModelVersion(vnfModelVerOpt.get().getModelVersion())
+
+            // No model customization ID
+            // No model instance name
+        }
+
+        vnf.setModelInfo(vnfModelInfo)
+
+        // Instance name
+        vnf.setInstanceName(constituteVnf.getVnfInstanceId())
+
+        // Instance params
+        List<Map<String, Object>> instanceParams = new ArrayList<>()
+        Map<String, Object> supporrtedNSSAIMap = new HashMap<>()
+
+        // Supported S-NSSAI
+        List<String> snssais = ( List<String>)execution.getVariable("S-NSSAIs")
+        supporrtedNSSAIMap.put("supporrtedNSSAI", snssais) // remaining S-NSSAIs ??? there is no status for each s-nssai
+        instanceParams.add(supporrtedNSSAIMap)
+
+        // No other instance params, e.g. config-type
+
+        vnf.setInstanceParams(instanceParams)
+
+        // No platform data
+
+        vnfs.add(vnf)
+        resources.setVnfs(vnfs)
+
+        service.setResources(resources)
+
+        Map<String, Object> serviceMap = new HashMap<>()
+        serviceMap.put("service", service)
+        userParams.add(serviceMap)
+        requestParameters.setUserParams(userParams)
+
+        // No other user params
+
+        requestDetails.setRequestParameters(requestParameters)
+
+        // No other request params
+
+        // Cloud configuration
+        requestDetails.setCloudConfiguration(cloudConfiguration)
+
+        // Owning entity
+        OwningEntity owningEntity = new OwningEntity()
+        wrapper = client.get(networkServiceInstanceUri)
+        Optional<Relationships> owningEntityRelationshipsOps = wrapper.getRelationships()
+        if(owningEntityRelationshipsOps.isPresent()) {
+            List<AAIResourceUri> owningEntityRelatedAAIUris = owningEntityRelationshipsOps.get().getRelatedAAIUris(AAIObjectType.OWNING_ENTITY)
+
+            if(!(owningEntityRelatedAAIUris == null || owningEntityRelatedAAIUris.isEmpty())) {
+                Optional<org.onap.aai.domain.yang.OwningEntity> owningEntityOpt = client.get(org.onap.aai.domain.yang.OwningEntity.class, owningEntityRelatedAAIUris.get(0)) // Many-To-One relation
+                if(owningEntityOpt.isPresent()) {
+                    owningEntity.setOwningEntityId(owningEntityOpt.get().getOwningEntityId())
+                    owningEntity.setOwningEntityName(owningEntityOpt.get().getOwningEntityName())
+                    requestDetails.setOwningEntity(owningEntity)
+                }
+            }
+        }
+
+        // Project
+        Project project = new Project()
+        if(cloudRegionRelatedAAIUri != null) {
+            wrapper = client.get(cloudRegionRelatedAAIUri)
+            Optional<Relationships> cloudRegionOps = wrapper.getRelationships()
+            if(cloudRegionOps.isPresent()) {
+                List<AAIResourceUri> projectAAIUris = cloudRegionOps.get().getRelatedAAIUris(AAIObjectType.PROJECT)
+                if (!(projectAAIUris == null || projectAAIUris.isEmpty())) {
+                    Optional<org.onap.aai.domain.yang.Project> projectOpt = client.get(org.onap.aai.domain.yang.Project.class, projectAAIUris.get(0))
+                    if(projectOpt.isPresent()) {
+                        project.setProjectName(projectOpt.get().getProjectName())
+                    }
+                }
+            }
+        }
+        requestDetails.setProject(project)
+
+        return requestDetails
+    }
+
+
+    /**
+     * Removes NSSI association with NSI
+     * @param execution
+     */
+    void removeNSSIAssociationWithNSI(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start removeNSSIAssociationWithNSI")
+
+        AAIResourcesClient client = getAAIClient()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String nssiId = currentNSSI['nssiServiceInstanceId']
+        String nsiId = currentNSSI['nsiId']
+
+        AAIResourceUri nssiUri = AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, nssiId)
+        AAIResourceUri nsiUri = AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, nsiId)
+
+        try {
+            getAAIClient().disconnect(nssiUri, nsiUri)
+        }catch(Exception e){
+            exceptionUtil.buildAndThrowWorkflowException(execution, 25000, "Exception occured while NSSI association with NSI disconnect call: " + e.getMessage())
+        }
+
+        LOGGER.trace("${PREFIX} Exit removeNSSIAssociationWithNSI")
+    }
+
+
+    /**
+     * Removes Slice Profile association with NSSI
+     * @param execution
+     */
+    void removeSPAssociationWithNSSI(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start removeSPAssociationWithNSSI")
+
+        AAIResourcesClient client = getAAIClient()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        ServiceInstance nssi = (ServiceInstance)currentNSSI['nssi']
+
+        String nssiId = currentNSSI['nssiServiceInstanceId']
+        AAIResourceUri nssiUri = AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, nssiId)
+
+        List<SliceProfile> associatedProfiles = nssi.getSliceProfiles().getSliceProfile()
+
+        String currentSNSSAI = currentNSSI['S-NSSAI']
+
+        associatedProfiles.removeIf({ associatedProfile -> (associatedProfile.getSNssai().equals(currentSNSSAI)) })
+
+        try {
+            getAAIClient().update(nssiUri, nssi)
+        }catch(Exception e){
+            exceptionUtil.buildAndThrowWorkflowException(execution, 25000, "Exception occured while Slice Profile association with NSSI update call: " + e.getMessage())
+        }
+
+        LOGGER.trace("${PREFIX} Exit removeSPAssociationWithNSSI")
+    }
+
+
+    /**
+     * Deletes Slice Profile Instance
+     * @param execution
+     */
+    void deleteSliceProfileInstance(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start deleteSliceProfileInstance")
+
+        AAIResourcesClient client = getAAIClient()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        ServiceInstance nssi = (ServiceInstance)currentNSSI['nssi']
+
+        List<SliceProfile> associatedProfiles = nssi.getSliceProfiles().getSliceProfile()
+
+        String currentSNSSAI = currentNSSI['S-NSSAI']
+
+        AAIResourceUri sliceProfileUri = null
+
+        for(SliceProfile associatedProfile:associatedProfiles) {
+            if(!associatedProfile.getSNssai().equals(currentNSSI)) { // not current S-NSSAI
+                sliceProfileUri = AAIUriFactory.createResourceUri(AAIObjectType.SLICE_PROFILE, associatedProfile.getProfileId())
+                break
+            }
+        }
+
+        try {
+            getAAIClient().delete(sliceProfileUri)
+        }catch(Exception e){
+            exceptionUtil.buildAndThrowWorkflowException(execution, 25000, "Exception occured while Slice Profile Instance delete call: " + e.getMessage())
+        }
+
+        LOGGER.trace("${PREFIX} Exit deleteSliceProfileInstance")
+    }
+
+
+    /**
+     * Delets NSSI Service Instance
+     * @param execution
+     */
+    void deleteNSSIServiceInstance(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start deleteNSSIServiceInstance")
+
+        AAIResourcesClient client = getAAIClient()
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        String nssiId = currentNSSI['nssiServiceInstanceId']
+        AAIResourceUri nssiUri = AAIUriFactory.createResourceUri(AAIObjectType.SERVICE_INSTANCE, nssiId)
+
+        try {
+            getAAIClient().delete(nssiUri)
+        }catch(Exception e){
+            exceptionUtil.buildAndThrowWorkflowException(execution, 25000, "Exception occured while NSSI Service Instance delete call: " + e.getMessage())
+        }
+
+        LOGGER.trace("${PREFIX} Exit deleteNSSIServiceInstance")
+    }
+
+
+    /**
+     * Updates operation status
+     * @param execution
+     */
+    void updateServiceOperationStatus(DelegateExecution execution) {
+        LOGGER.trace("${PREFIX} Start updateServiceOperationStatus")
+
+        def currentNSSI = execution.getVariable("currentNSSI")
+
+        OperationStatus operationStatus = new OperationStatus()
+        operationStatus.setServiceId(currentNSSI['e2eServiceInstanceId'] as String)
+        operationStatus.setOperationId(currentNSSI['operationId'] as String)
+        operationStatus.setOperation(currentNSSI['operationType'] as String)
+        operationStatus.setResult(RequestsDbConstant.Status.FINISHED)
+
+        requestDBUtil.prepareUpdateOperationStatus(execution, operationStatus)
+
+        LOGGER.trace("${PREFIX} Exit updateServiceOperationStatus")
+    }
+
+
+    /**
+     * Returns AAI client
+     * @return AAI client
+     */
+    AAIResourcesClient getAAIClient() {
+        return new AAIResourcesClient()
+    }
+
+}