Implement so-oof-adapter to handle OOF Callback

	- Add NSI/NST selection callback for Networkslicing

Issue-ID: SO-3205
Signed-off-by: Priyadharshini <priyadharshini.b96@wipro.com>
Change-Id: Ica88d503495949ecce8b897c3a990fbdaa5d4f0e

8 files changed, 702 insertions, 428 deletions

diff --git a/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/DoHandleOofRequest.groovy b/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/DoHandleOofRequest.groovy
new file mode 100644
index 0000000000..ebc5f4ac58
--- /dev/null
+++ b/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/DoHandleOofRequest.groovy
@@ -0,0 +1,103 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License")
+ * you may not use this file except in compliance with the License.
+ * 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.bpmn.common.scripts
+
+import javax.ws.rs.core.Response
+
+import org.apache.commons.lang3.StringUtils
+import org.camunda.bpm.engine.delegate.DelegateExecution
+import org.onap.logging.filter.base.ONAPComponents
+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.client.oof.adapter.beans.payload.OofRequest
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import com.fasterxml.jackson.databind.ObjectMapper
+
+
+import static org.onap.so.bpmn.common.scripts.GenericUtils.*
+
+
+class DoHandleOofRequest extends AbstractServiceTaskProcessor {
+	
+	ExceptionUtil exceptionUtil = new ExceptionUtil()
+	JsonUtils jsonUtil = new JsonUtils()
+	private static final Logger logger = LoggerFactory.getLogger(DoHandleOofRequest.class)
+
+	@Override
+	public void preProcessRequest(DelegateExecution execution) {
+		logger.debug("In Preprocess Oof Request Handler")
+		String apiPath = execution.getVariable("apiPath")
+		if (isBlank(apiPath)) {
+			String msg = "Cannot process OOF adapter call : API PATH is null"
+			exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
+		} 
+		
+		//msoRequestId is used for correlation
+		String requestId = execution.getVariable("correlator")
+		if (isBlank(requestId)) {
+			String msg = "Cannot process OOF adapter call : correlator is null"
+			exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
+		}
+		
+		String messageType = execution.getVariable("messageType")
+		if (isBlank(messageType)) {
+			String msg = "Cannot process OOF adapter call : messageType is null"
+			exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
+		}
+		
+		String timeout = execution.getVariable("timeout")
+		if (isBlank(timeout)) {
+			timeout = UrnPropertiesReader.getVariable("mso.adapters.oof.timeout", execution);
+			if (isBlank(timeout)) {
+				logger.debug("Setting OOF timeout to default : PT30M")
+				timeout = "PT30M"
+			}
+		}
+		
+		Object requestDetails = execution.getVariable("oofRequest")
+		OofRequest oofRequestPayload = new OofRequest()
+		oofRequestPayload.setApiPath(apiPath)
+		oofRequestPayload.setRequestDetails(requestDetails)
+		ObjectMapper objectMapper = new ObjectMapper()
+	        String requestJson = objectMapper.writeValueAsString(oofRequestPayload)
+		execution.setVariable("oofRequestPayload", requestJson)
+	}
+	
+	public void callOofAdapter(DelegateExecution execution) {
+		logger.debug("Start callOofAdapter")
+		String requestId = execution.getVariable("msoRequestId")
+		String oofAdapterEndpoint = UrnPropertiesReader.getVariable("mso.adapters.oof.endpoint", execution)
+		String basicAuthCred = execution.getVariable("BasicAuthHeaderValue")
+		URL requestUrl = new URL(oofAdapterEndpoint)
+		String oofRequest = execution.getVariable("oofRequestPayload")
+		logger.debug("oofRequest : " + oofRequest)
+		HttpClient httpClient = new HttpClientFactory().newJsonClient(requestUrl, ONAPComponents.EXTERNAL)
+		Response httpResponse = httpClient.post(oofRequest)
+		int responseCode = httpResponse.getStatus()
+		logger.debug("OOF sync response code is: " + responseCode)
+		if(responseCode != 200){
+			exceptionUtil.buildAndThrowWorkflowException(execution, responseCode, "Received a Bad Sync Response from OOF.")
+		}
+	}
+	
+}
diff --git a/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/OofUtils.groovy b/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/OofUtils.groovy
index 69dfacd9bc..2c96e7d3bb 100644
--- a/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/OofUtils.groovy
+++ b/bpmn/MSOCommonBPMN/src/main/groovy/org/onap/so/bpmn/common/scripts/OofUtils.groovy
@@ -22,42 +22,28 @@
 
 package org.onap.so.bpmn.common.scripts
 
-import com.fasterxml.jackson.databind.ObjectMapper
+import static org.onap.so.bpmn.common.scripts.GenericUtils.*
+
+import javax.ws.rs.core.UriBuilder
+
 import org.camunda.bpm.engine.delegate.DelegateExecution
-import org.onap.so.bpmn.common.scripts.AbstractServiceTaskProcessor
-import org.onap.so.bpmn.common.scripts.ExceptionUtil
 import org.onap.so.bpmn.common.util.OofInfraUtils
 import org.onap.so.bpmn.core.UrnPropertiesReader
+import org.onap.so.bpmn.core.domain.AllottedResource
 import org.onap.so.bpmn.core.domain.HomingSolution
 import org.onap.so.bpmn.core.domain.ModelInfo
 import org.onap.so.bpmn.core.domain.Resource
-import org.onap.so.bpmn.core.domain.AllottedResource
 import org.onap.so.bpmn.core.domain.ServiceDecomposition
 import org.onap.so.bpmn.core.domain.ServiceInstance
 import org.onap.so.bpmn.core.domain.Subscriber
 import org.onap.so.bpmn.core.domain.VnfResource
 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.catalog.beans.CloudSite
 import org.onap.so.db.catalog.beans.HomingInstance
-import org.onap.logging.filter.base.ONAPComponents;
-import org.springframework.http.HttpEntity
-import org.springframework.http.HttpHeaders
-import org.springframework.http.HttpMethod
-import org.springframework.http.ResponseEntity
-import org.springframework.http.client.BufferingClientHttpRequestFactory
-import org.springframework.http.client.HttpComponentsClientHttpRequestFactory
-import org.springframework.web.client.RestTemplate
-import org.springframework.web.util.UriComponentsBuilder
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
-import javax.ws.rs.core.MediaType
-import javax.ws.rs.core.Response
-import javax.ws.rs.core.UriBuilder
-
-import static org.onap.so.bpmn.common.scripts.GenericUtils.*
+import com.fasterxml.jackson.databind.ObjectMapper
 
 class OofUtils {
     private static final Logger logger = LoggerFactory.getLogger( OofUtils.class);
@@ -530,10 +516,11 @@ class OofUtils {
         return UriBuilder.fromPath("").host(msbHost).port(msbPort).scheme("http").build().toString()
     }
 
-    public String buildSelectNSTRequest(String requestId, Map<String, Object> profileInfo) {
+    public String buildSelectNSTRequest(String requestId,String messageType, Map<String, Object> profileInfo) {
         def transactionId = requestId
         logger.debug( "transactionId is: " + transactionId)
-        String callbackUrl = "http://0.0.0.0:9000/callback/"
+		String correlator = requestId
+        String callbackUrl = UrnPropertiesReader.getVariable("mso.adapters.oof.callback.endpoint") + "/" + messageType + "/" + correlator
         ObjectMapper objectMapper = new ObjectMapper()
         String json = objectMapper.writeValueAsString(profileInfo)
         StringBuilder response = new StringBuilder()
@@ -554,11 +541,12 @@ class OofUtils {
         return response.toString()
     }
 
-    public String buildSelectNSIRequest(String requestId, String nstInfo, Map<String, Object> profileInfo){
+    public String buildSelectNSIRequest(String requestId, String nstInfo,String messageType, Map<String, Object> profileInfo){
 
         def transactionId = requestId
         logger.debug( "transactionId is: " + transactionId)
-        String callbackUrl = "http://0.0.0.0:9000/callback/"
+		String correlator = requestId
+        String callbackUrl = UrnPropertiesReader.getVariable("mso.adapters.oof.callback.endpoint") + "/" + messageType + "/" + correlator
         ObjectMapper objectMapper = new ObjectMapper();
         String json = objectMapper.writeValueAsString(profileInfo);
         StringBuilder response = new StringBuilder();
diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/oof/adapter/beans/payload/OofRequest.java b/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/oof/adapter/beans/payload/OofRequest.java
new file mode 100644
index 0000000000..9d81332ed7
--- /dev/null
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/oof/adapter/beans/payload/OofRequest.java
@@ -0,0 +1,49 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 Wipro Limited. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * 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.client.oof.adapter.beans.payload;
+
+public class OofRequest {
+
+    private String apiPath;
+
+    private Object requestDetails;
+
+    public String getApiPath() {
+        return apiPath;
+    }
+
+    public void setApiPath(String apiPath) {
+        this.apiPath = apiPath;
+    }
+
+    public Object getRequestDetails() {
+        return requestDetails;
+    }
+
+    public void setRequestDetails(Object requestDetails) {
+        this.requestDetails = requestDetails;
+    }
+
+    @Override
+    public String toString() {
+        return "OofRequest [apiPath=" + apiPath + ", requestDetails=" + requestDetails + "]";
+    }
+
+}
diff --git a/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/CreateSliceService.groovy b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/CreateSliceService.groovy
index 15a0f34482..389f0a089c 100644
--- a/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/CreateSliceService.groovy
+++ b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/CreateSliceService.groovy
@@ -178,60 +178,36 @@ public class CreateSliceService extends AbstractServiceTaskProcessor {
         logger.debug("Finish preProcessRequest")
     }
 
-    public void getNSTSelection(DelegateExecution execution) {
-        logger.debug("Start getNSTSelection")
+    public void prepareSelectNSTRequest(DelegateExecution execution) {
+        logger.debug("Start prepareSelectNSTRequest")
         String requestId = execution.getVariable("msoRequestId")
+	String messageType = "NSTSelectionResponse"
         Map<String, Object> serviceProfile = execution.getVariable("serviceProfile")
-        String oofUrl = UrnPropertiesReader.getVariable("mso.oof.endpoint", execution)
-
-        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")
-        }
-
-        URL requestUrl = new URL(oofUrl + "/api/oof/v1/selection/nst")
-        String oofRequest = oofUtils.buildSelectNSTRequest(requestId, serviceProfile)
-        HttpClient httpClient = new HttpClientFactory().newJsonClient(requestUrl, ONAPComponents.OOF)
-        httpClient.addAdditionalHeader("Authorization", authHeader)
-        Response httpResponse = httpClient.post(oofRequest)
-
-        int responseCode = httpResponse.getStatus()
-        logger.debug("OOF sync response code is: " + responseCode)
-
-        if(responseCode != 200){
-            exceptionUtil.buildAndThrowWorkflowException(execution, responseCode, "Received a Bad Sync Response from OOF.")
-        }
-
-        Map<String, Object> nstSolution
-        try {
-            Map<String, Object> resMap = httpResponse.readEntity(Map.class)
-            List<Map<String, Object>> nstSolutions = (List<Map<String, Object>>) resMap.get("solutions")
-            nstSolution = nstSolutions.get(0)
-            execution.setVariable("nstSolution", nstSolution)
-        } catch (Exception ex) {
-            logger.debug( "Failed to get NST solution suggested by OOF.")
-            exceptionUtil.buildAndThrowWorkflowException(execution, 401, "Failed to get NST solution suggested by OOF.")
-        }
-
-        logger.debug("Finish getNSTSelection")
+		execution.setVariable("nstSelectionUrl", "/api/oof/v1/selection/nst")
+		execution.setVariable("nstSelection_messageType",messageType)
+		execution.setVariable("nstSelection_correlator",requestId)
+		String timeout = UrnPropertiesReader.getVariable("mso.adapters.oof.timeout", execution);
+		execution.setVariable("nstSelection_timeout",timeout)
+        String oofRequest = oofUtils.buildSelectNSTRequest(requestId,messageType, serviceProfile)
+        execution.setVariable("nstSelection_oofRequest",oofRequest)
+        logger.debug("Finish prepareSelectNSTRequest")
 
     }
+	
+	public void processNSTSolutions(DelegateExecution execution) {
+		Map<String, Object> nstSolution
+		try {
+			logger.debug("Start processing NSTSolutions")
+			Map<String, Object> resMap = objectMapper.readValue(execution.getVariable("nstSelection_oofResponse"),Map.class)
+			List<Map<String, Object>> nstSolutions = (List<Map<String, Object>>) resMap.get("solutions")
+			nstSolution = nstSolutions.get(0)
+			execution.setVariable("nstSolution", nstSolution)
+		} catch (Exception ex) {
+			logger.debug( "Failed to get NST solution suggested by OOF.")
+			exceptionUtil.buildAndThrowWorkflowException(execution, 401, "Failed to get NST solution suggested by OOF.")
+		}
+
+	}
 
     public void prepareDecomposeService(DelegateExecution execution) {
         logger.debug("Start prepareDecomposeService")
diff --git a/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoCreateSliceServiceOption.groovy b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoCreateSliceServiceOption.groovy
index ec9596e7f3..9b78afba03 100644
--- a/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoCreateSliceServiceOption.groovy
+++ b/bpmn/so-bpmn-infrastructure-common/src/main/groovy/org/onap/so/bpmn/infrastructure/scripts/DoCreateSliceServiceOption.groovy
@@ -64,38 +64,16 @@ class DoCreateSliceServiceOption extends AbstractServiceTaskProcessor{
     }
 
 
-    void getNSIOptionfromOOF(DelegateExecution execution) {
+    void prepareSelectNSIRequest(DelegateExecution execution) {
 
         String urlString = UrnPropertiesReader.getVariable("mso.oof.endpoint", execution)
         logger.debug( "get NSI option OOF Url: " + urlString)
 
         boolean isNSISuggested = true
         execution.setVariable("isNSISuggested",isNSISuggested)
-
-        //Prepare auth for OOF - Begin
-        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 auth for OOF - End
-
         String requestId = execution.getVariable("msoRequestId")
+		String messageType = "NSISelectionResponse"
+		
         Map<String, Object> profileInfo = execution.getVariable("serviceProfile")
         Map<String, Object> nstSolution = execution.getVariable("nstSolution")
         logger.debug("Get NST selection from OOF: " + nstSolution.toString())
@@ -104,36 +82,21 @@ class DoCreateSliceServiceOption extends AbstractServiceTaskProcessor{
             "modelVersionId":"${nstSolution.UUID}",
             "modelName":"${nstSolution.NSTName}"
          }"""
-
-        String oofRequest = oofUtils.buildSelectNSIRequest(requestId, nstInfo, profileInfo)
-        logger.debug("Sending request to OOF: " + oofRequest)
-
-        //send request to get NSI option - Begin
-        URL url = new URL(urlString+"/api/oof/selection/nsi/v1")
-        HttpClient httpClient = new HttpClientFactory().newJsonClient(url, ONAPComponents.OOF)
-        httpClient.addAdditionalHeader("Authorization", authHeader)
-        Response httpResponse = httpClient.post(oofRequest)
-
-        processOOFResponse(httpResponse, execution)
-
-        //解析sliceProfile
-        logger.debug("start parseServiceProfile")
-        parseServiceProfile(execution)
-        logger.debug("end parseServiceProfile")
+		
+		 execution.setVariable("nsiSelectionUrl", "/api/oof/selection/nsi/v1")
+		 execution.setVariable("nsiSelection_messageType",messageType)
+		 execution.setVariable("nsiSelection_correlator",requestId)
+		 String timeout = UrnPropertiesReader.getVariable("mso.adapters.oof.timeout", execution);
+		 execution.setVariable("nsiSelection_timeout",timeout)
+		 String oofRequest = oofUtils.buildSelectNSIRequest(requestId, nstInfo,messageType, profileInfo)
+		 execution.setVariable("nsiSelection_oofRequest",oofRequest)
+		 logger.debug("Sending request to OOF: " + oofRequest)
     }
 
-    private void processOOFResponse(Response httpResponse, DelegateExecution execution) {
+    void processOOFResponse(Response httpResponse, DelegateExecution execution) {
         int responseCode = httpResponse.getStatus()
-        logger.debug("OOF sync response code is: " + responseCode)
-
-        if (responseCode != 200) {
-            exceptionUtil.buildAndThrowWorkflowException(execution, responseCode, "Received a Bad Sync Response from OOF.")
-            logger.debug("Info: No NSI suggested by OOF")
-        }
-
         SliceTaskParams sliceTaskParams = execution.getVariable("sliceTaskParams")
-        if (httpResponse.hasEntity()) {
-            String OOFResponse = httpResponse.readEntity(String.class)
+            String OOFResponse = execution.getVariable("nsiSelection_oofResponse")
             logger.debug("NSI OOFResponse is: " + OOFResponse)
             execution.setVariable("OOFResponse", OOFResponse)
             //This needs to be changed to derive a value when we add policy to decide the solution options.
@@ -154,8 +117,11 @@ class DoCreateSliceServiceOption extends AbstractServiceTaskProcessor{
             }
             execution.setVariable("sliceTaskParams", sliceTaskParams)
             logger.debug("sliceTaskParams: "+sliceTaskParams.convertToJson())
-        }
         logger.debug("*** Completed options Call to OOF ***")
+		//解析sliceProfile
+		logger.debug("start parseServiceProfile")
+		parseServiceProfile(execution)
+		logger.debug("end parseServiceProfile")
     }
 
     private boolean hasSharedNSIsolutions( Map solutions){
diff --git a/bpmn/so-bpmn-infrastructure-flows/src/main/resources/process/CreateSliceService.bpmn b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/process/CreateSliceService.bpmn
index f27794a389..27bd01bda9 100644
--- a/bpmn/so-bpmn-infrastructure-flows/src/main/resources/process/CreateSliceService.bpmn
+++ b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/process/CreateSliceService.bpmn
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_1wio50w" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="3.4.1">
+<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_1wio50w" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="4.1.1">
   <bpmn:process id="CreateSliceService" name="CreateSliceService" isExecutable="true">
     <bpmn:startEvent id="StartEvent_1nbljfd" name="Create Slice Service Creation Flow">
       <bpmn:outgoing>SequenceFlow_03s744c</bpmn:outgoing>
@@ -34,12 +34,12 @@ css.processUserOptions(execution)</bpmn:script>
 def css = new CreateSliceService()
 css.processDecomposition(execution)</bpmn:script>
     </bpmn:scriptTask>
-    <bpmn:scriptTask id="ScriptTask_1eo3m4q" name="Get NST Selection" scriptFormat="groovy">
+    <bpmn:scriptTask id="ScriptTask_1eo3m4q" name="Prepare NST Selection" scriptFormat="groovy">
       <bpmn:incoming>SequenceFlow_046irye</bpmn:incoming>
-      <bpmn:outgoing>SequenceFlow_1o23s0i</bpmn:outgoing>
+      <bpmn:outgoing>Flow_1l8mfej</bpmn:outgoing>
       <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
 def css = new CreateSliceService()
-css.getNSTSelection(execution)</bpmn:script>
+css.prepareSelectNSTRequest(execution)</bpmn:script>
     </bpmn:scriptTask>
     <bpmn:callActivity id="CallActivity_139l55g" name="Call DoCreateSliceServiceInstance&#10;" calledElement="DoCreateSliceServiceInstance">
       <bpmn:extensionElements>
@@ -176,7 +176,7 @@ css.prepareUpdateServiceOperationStatus(execution)</bpmn:script>
       <bpmn:outgoing>SequenceFlow_1t19ips</bpmn:outgoing>
     </bpmn:callActivity>
     <bpmn:scriptTask id="ScriptTask_0o2r07o" name="Prepare&#10;Decompose&#10;Service&#10;" scriptFormat="groovy">
-      <bpmn:incoming>SequenceFlow_1o23s0i</bpmn:incoming>
+      <bpmn:incoming>Flow_1u4srgq</bpmn:incoming>
       <bpmn:outgoing>SequenceFlow_0q7yc2c</bpmn:outgoing>
       <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
 def dcsi= new CreateSliceService()
@@ -446,7 +446,6 @@ css.sendSyncResponse(execution)</bpmn:script>
     </bpmn:callActivity>
     <bpmn:sequenceFlow id="SequenceFlow_1aaozcg" sourceRef="CallActivity_0v4mw2x" targetRef="ScriptTask_0gb975b" />
     <bpmn:sequenceFlow id="SequenceFlow_046irye" sourceRef="ServiceTask_0kd6p6p" targetRef="ScriptTask_1eo3m4q" />
-    <bpmn:sequenceFlow id="SequenceFlow_1o23s0i" sourceRef="ScriptTask_1eo3m4q" targetRef="ScriptTask_0o2r07o" />
     <bpmn:sequenceFlow id="SequenceFlow_0jrclmc" sourceRef="ScriptTask_0l3d1ai" targetRef="IntermediateThrowEvent_1ex8ke9" />
     <bpmn:scriptTask id="ScriptTask_19uxoi8" name="Update AAI Status" scriptFormat="groovy">
       <bpmn:incoming>SequenceFlow_0n4xku8</bpmn:incoming>
@@ -457,12 +456,205 @@ def css = new CreateSliceService()
 css.updateAAIOrchStatus(execution)</bpmn:script>
     </bpmn:scriptTask>
     <bpmn:sequenceFlow id="SequenceFlow_0kixzdj" sourceRef="ScriptTask_19uxoi8" targetRef="ScriptTask_1ef3voz" />
+    <bpmn:sequenceFlow id="Flow_1l8mfej" sourceRef="ScriptTask_1eo3m4q" targetRef="Activity_1ge49xu" />
+    <bpmn:callActivity id="Activity_1ge49xu" name="Handle NST Selection OOF request" calledElement="DoHandleOofRequest">
+      <bpmn:extensionElements>
+        <camunda:in source="nstSelectionUrl" target="apiPath" />
+        <camunda:in source="nstSelection_correlator" target="correlator" />
+        <camunda:in source="nstSelection_messageType" target="messageType" />
+        <camunda:in source="nstSelection_timeout" target="timeout" />
+        <camunda:out source="WorkflowException" target="WorkflowException" />
+        <camunda:out source="asyncCallbackResponse" target="nstSelection_oofResponse" />
+        <camunda:in source="nstSelection_oofRequest" target="oofRequest" />
+      </bpmn:extensionElements>
+      <bpmn:incoming>Flow_1l8mfej</bpmn:incoming>
+      <bpmn:outgoing>Flow_0vq2rmw</bpmn:outgoing>
+    </bpmn:callActivity>
+    <bpmn:sequenceFlow id="Flow_0vq2rmw" sourceRef="Activity_1ge49xu" targetRef="Activity_12v8ykp" />
+    <bpmn:scriptTask id="Activity_12v8ykp" name="Process NST Solutions" scriptFormat="groovy">
+      <bpmn:incoming>Flow_0vq2rmw</bpmn:incoming>
+      <bpmn:outgoing>Flow_1u4srgq</bpmn:outgoing>
+      <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
+def css = new CreateSliceService()
+css.processNSTSolutions(execution)</bpmn:script>
+    </bpmn:scriptTask>
+    <bpmn:sequenceFlow id="Flow_1u4srgq" sourceRef="Activity_12v8ykp" targetRef="ScriptTask_0o2r07o" />
   </bpmn:process>
   <bpmn:message id="Message_0c4b2r5" name="SliceServiceTask" />
   <bpmn:error id="Error_03akl5v" name="MSOWorkflowException" errorCode="MSOWorkflowException" />
   <bpmn:error id="Error_0p2naox" name="MSOWorkflowException" errorCode="MSOWorkflowException" />
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="CreateSliceService">
+      <bpmndi:BPMNEdge id="SequenceFlow_0kixzdj_di" bpmnElement="SequenceFlow_0kixzdj">
+        <di:waypoint x="745" y="801" />
+        <di:waypoint x="823" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0jrclmc_di" bpmnElement="SequenceFlow_0jrclmc">
+        <di:waypoint x="1540" y="121" />
+        <di:waypoint x="1584" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_046irye_di" bpmnElement="SequenceFlow_046irye">
+        <di:waypoint x="650" y="121" />
+        <di:waypoint x="685" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1aaozcg_di" bpmnElement="SequenceFlow_1aaozcg">
+        <di:waypoint x="1115" y="289" />
+        <di:waypoint x="1193" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_12qt5ci_di" bpmnElement="SequenceFlow_12qt5ci">
+        <di:waypoint x="335" y="514" />
+        <di:waypoint x="335" y="611" />
+        <di:waypoint x="335" y="593" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_16uz2t9_di" bpmnElement="SequenceFlow_16uz2t9">
+        <di:waypoint x="385" y="456" />
+        <di:waypoint x="467" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1fk37v7_di" bpmnElement="SequenceFlow_1fk37v7">
+        <di:waypoint x="214" y="456" />
+        <di:waypoint x="285" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1ey6m1e_di" bpmnElement="SequenceFlow_1ey6m1e">
+        <di:waypoint x="930" y="289" />
+        <di:waypoint x="1015" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1bevt3a_di" bpmnElement="SequenceFlow_1bevt3a">
+        <di:waypoint x="214" y="801" />
+        <di:waypoint x="285" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_10ng1vx_di" bpmnElement="SequenceFlow_10ng1vx">
+        <di:waypoint x="1471" y="645" />
+        <di:waypoint x="1584" y="645" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_19lsayh_di" bpmnElement="SequenceFlow_19lsayh">
+        <di:waypoint x="1293" y="645" />
+        <di:waypoint x="1371" y="645" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0h2oree_di" bpmnElement="SequenceFlow_0h2oree">
+        <di:waypoint x="567" y="456" />
+        <di:waypoint x="645" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0477975_di" bpmnElement="SequenceFlow_0477975">
+        <di:waypoint x="1471" y="456" />
+        <di:waypoint x="1584" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0thd6ny_di" bpmnElement="SequenceFlow_0thd6ny">
+        <di:waypoint x="1293" y="456" />
+        <di:waypoint x="1371" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1sq6kp6_di" bpmnElement="SequenceFlow_1sq6kp6">
+        <di:waypoint x="385" y="289" />
+        <di:waypoint x="467" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0q7yc2c_di" bpmnElement="SequenceFlow_0q7yc2c">
+        <di:waypoint x="1240" y="121" />
+        <di:waypoint x="1280" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1qv8qw1_di" bpmnElement="SequenceFlow_1qv8qw1">
+        <di:waypoint x="1297" y="801" />
+        <di:waypoint x="1375" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0lbdfmt_di" bpmnElement="SequenceFlow_0lbdfmt">
+        <di:waypoint x="1105" y="801" />
+        <di:waypoint x="1197" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1o1tu0f_di" bpmnElement="SequenceFlow_1o1tu0f">
+        <di:waypoint x="214" y="289" />
+        <di:waypoint x="285" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0t094g7_di" bpmnElement="SequenceFlow_0t094g7">
+        <di:waypoint x="510" y="121" />
+        <di:waypoint x="550" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_11rbv41_di" bpmnElement="SequenceFlow_11rbv41">
+        <di:waypoint x="1475" y="801" />
+        <di:waypoint x="1585" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0klb3ey_di" bpmnElement="SequenceFlow_0klb3ey">
+        <di:waypoint x="923" y="801" />
+        <di:waypoint x="1005" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0n4xku8_di" bpmnElement="SequenceFlow_0n4xku8">
+        <di:waypoint x="538" y="801" />
+        <di:waypoint x="645" y="801" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="584" y="783" width="18" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1c6ka9h_di" bpmnElement="SequenceFlow_1c6ka9h">
+        <di:waypoint x="513" y="826" />
+        <di:waypoint x="513" y="926" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="521" y="832" width="15" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0mlrlbv_di" bpmnElement="SequenceFlow_0mlrlbv">
+        <di:waypoint x="385" y="801" />
+        <di:waypoint x="488" y="801" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_18kur12_di" bpmnElement="SequenceFlow_18kur12">
+        <di:waypoint x="1293" y="289" />
+        <di:waypoint x="1371" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0it2g9j_di" bpmnElement="SequenceFlow_0it2g9j">
+        <di:waypoint x="1471" y="289" />
+        <di:waypoint x="1584" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1g8m7tq_di" bpmnElement="SequenceFlow_1g8m7tq">
+        <di:waypoint x="745" y="289" />
+        <di:waypoint x="830" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1p8vxo5_di" bpmnElement="SequenceFlow_1p8vxo5">
+        <di:waypoint x="567" y="289" />
+        <di:waypoint x="645" y="289" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1t19ips_di" bpmnElement="SequenceFlow_1t19ips">
+        <di:waypoint x="1380" y="121" />
+        <di:waypoint x="1440" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_038lb9m_di" bpmnElement="SequenceFlow_038lb9m">
+        <di:waypoint x="1065" y="481" />
+        <di:waypoint x="1065" y="645" />
+        <di:waypoint x="1193" y="645" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1067" y="560" width="27" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_12t5exy_di" bpmnElement="SequenceFlow_12t5exy">
+        <di:waypoint x="1090" y="456" />
+        <di:waypoint x="1193" y="456" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1121.5" y="438" width="42" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_197cm2e_di" bpmnElement="SequenceFlow_197cm2e">
+        <di:waypoint x="930" y="456" />
+        <di:waypoint x="1040" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1cv0wop_di" bpmnElement="SequenceFlow_1cv0wop">
+        <di:waypoint x="745" y="456" />
+        <di:waypoint x="830" y="456" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_07e12rt_di" bpmnElement="SequenceFlow_07e12rt">
+        <di:waypoint x="350" y="121" />
+        <di:waypoint x="410" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_03s744c_di" bpmnElement="SequenceFlow_03s744c">
+        <di:waypoint x="214" y="121" />
+        <di:waypoint x="250" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_1l8mfej_di" bpmnElement="Flow_1l8mfej">
+        <di:waypoint x="785" y="121" />
+        <di:waypoint x="830" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0vq2rmw_di" bpmnElement="Flow_0vq2rmw">
+        <di:waypoint x="930" y="121" />
+        <di:waypoint x="1000" y="121" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_1u4srgq_di" bpmnElement="Flow_1u4srgq">
+        <di:waypoint x="1100" y="121" />
+        <di:waypoint x="1140" y="121" />
+      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="StartEvent_1nbljfd_di" bpmnElement="StartEvent_1nbljfd">
         <dc:Bounds x="178" y="103" width="36" height="36" />
         <bpmndi:BPMNLabel>
@@ -475,9 +667,6 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
           <dc:Bounds x="168" y="481" width="60" height="27" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_1tc44ge_di" bpmnElement="ScriptTask_1tc44ge">
-        <dc:Bounds x="285" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ScriptTask_1jgtb0y_di" bpmnElement="ScriptTask_1jgtb0y">
         <dc:Bounds x="830" y="416" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -487,12 +676,6 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
           <dc:Bounds x="1027" y="413" width="78" height="14" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_0l3d1ai_di" bpmnElement="ScriptTask_0l3d1ai">
-        <dc:Bounds x="1370" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_1eo3m4q_di" bpmnElement="ScriptTask_1eo3m4q">
-        <dc:Bounds x="830" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="CallActivity_139l55g_di" bpmnElement="CallActivity_139l55g">
         <dc:Bounds x="645" y="249" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -514,9 +697,53 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
       <bpmndi:BPMNShape id="EndEvent_0x406rw_di" bpmnElement="EndEvent_0x406rw">
         <dc:Bounds x="495" y="926" width="36" height="36" />
       </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_0l3d1ai_di" bpmnElement="ScriptTask_0l3d1ai">
+        <dc:Bounds x="1440" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="CallActivity_1bnkmaz_di" bpmnElement="CallActivity_1bnkmaz">
+        <dc:Bounds x="1280" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_0o2r07o_di" bpmnElement="ScriptTask_0o2r07o">
+        <dc:Bounds x="1140" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1tc44ge_di" bpmnElement="ScriptTask_1tc44ge">
+        <dc:Bounds x="250" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0yce5sp_di" bpmnElement="Activity_12v8ykp">
+        <dc:Bounds x="1000" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0uymgnp_di" bpmnElement="Activity_1ge49xu">
+        <dc:Bounds x="830" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1eo3m4q_di" bpmnElement="ScriptTask_1eo3m4q">
+        <dc:Bounds x="685" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ServiceTask_0kd6p6p_di" bpmnElement="ServiceTask_0kd6p6p">
+        <dc:Bounds x="550" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1xxag1o_di" bpmnElement="ScriptTask_1xxag1o">
+        <dc:Bounds x="410" y="81" width="100" height="80" />
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="SubProcess_1yv9i68_di" bpmnElement="SubProcess_1yv9i68" isExpanded="true">
         <dc:Bounds x="685" y="1080" width="781" height="196" />
       </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_08mlzwz_di" bpmnElement="SequenceFlow_08mlzwz">
+        <di:waypoint x="1079" y="1184" />
+        <di:waypoint x="1353" y="1184" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1w67v6s_di" bpmnElement="SequenceFlow_1w67v6s">
+        <di:waypoint x="751" y="1184" />
+        <di:waypoint x="979" y="1184" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="StartEvent_1omdx56_di" bpmnElement="StartEvent_1omdx56">
+        <dc:Bounds x="715" y="1166" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="EndEvent_1jx3026_di" bpmnElement="EndEvent_1jx3026">
+        <dc:Bounds x="1353" y="1166" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1swzdpw_di" bpmnElement="ScriptTask_1swzdpw">
+        <dc:Bounds x="979" y="1144" width="100" height="80" />
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ScriptTask_1ef3voz_di" bpmnElement="ScriptTask_1ef3voz">
         <dc:Bounds x="823" y="761" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -526,9 +753,6 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
           <dc:Bounds x="1593" y="826" width="20" height="14" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_1xxag1o_di" bpmnElement="ScriptTask_1xxag1o">
-        <dc:Bounds x="468" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="IntermediateThrowEvent_1ex8ke9_di" bpmnElement="IntermediateThrowEvent_1ex8ke9">
         <dc:Bounds x="1584" y="103" width="36" height="36" />
         <bpmndi:BPMNLabel>
@@ -544,15 +768,6 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
       <bpmndi:BPMNShape id="ScriptTask_1ssh2l9_di" bpmnElement="ScriptTask_1ssh2l9">
         <dc:Bounds x="1197" y="761" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ServiceTask_0kd6p6p_di" bpmnElement="ServiceTask_0kd6p6p">
-        <dc:Bounds x="645" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="CallActivity_1bnkmaz_di" bpmnElement="CallActivity_1bnkmaz">
-        <dc:Bounds x="1193" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_0o2r07o_di" bpmnElement="ScriptTask_0o2r07o">
-        <dc:Bounds x="1015" y="81" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ScriptTask_0b7senu_di" bpmnElement="ScriptTask_0b7senu">
         <dc:Bounds x="285" y="249" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -613,197 +828,18 @@ css.updateAAIOrchStatus(execution)</bpmn:script>
       <bpmndi:BPMNShape id="EndEvent_0bh0kwx_di" bpmnElement="EndEvent_0bh0kwx">
         <dc:Bounds x="317" y="593" width="36" height="36" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_03s744c_di" bpmnElement="SequenceFlow_03s744c">
-        <di:waypoint x="214" y="121" />
-        <di:waypoint x="285" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_07e12rt_di" bpmnElement="SequenceFlow_07e12rt">
-        <di:waypoint x="385" y="121" />
-        <di:waypoint x="468" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1cv0wop_di" bpmnElement="SequenceFlow_1cv0wop">
-        <di:waypoint x="745" y="456" />
-        <di:waypoint x="830" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_197cm2e_di" bpmnElement="SequenceFlow_197cm2e">
-        <di:waypoint x="930" y="456" />
-        <di:waypoint x="1040" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_12t5exy_di" bpmnElement="SequenceFlow_12t5exy">
-        <di:waypoint x="1090" y="456" />
-        <di:waypoint x="1193" y="456" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="1121.5" y="438" width="42" height="14" />
-        </bpmndi:BPMNLabel>
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_038lb9m_di" bpmnElement="SequenceFlow_038lb9m">
-        <di:waypoint x="1065" y="481" />
-        <di:waypoint x="1065" y="645" />
-        <di:waypoint x="1193" y="645" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="1067" y="560" width="27" height="14" />
-        </bpmndi:BPMNLabel>
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1t19ips_di" bpmnElement="SequenceFlow_1t19ips">
-        <di:waypoint x="1293" y="121" />
-        <di:waypoint x="1370" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1p8vxo5_di" bpmnElement="SequenceFlow_1p8vxo5">
-        <di:waypoint x="567" y="289" />
-        <di:waypoint x="645" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1g8m7tq_di" bpmnElement="SequenceFlow_1g8m7tq">
-        <di:waypoint x="745" y="289" />
-        <di:waypoint x="830" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0it2g9j_di" bpmnElement="SequenceFlow_0it2g9j">
-        <di:waypoint x="1471" y="289" />
-        <di:waypoint x="1584" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_18kur12_di" bpmnElement="SequenceFlow_18kur12">
-        <di:waypoint x="1293" y="289" />
-        <di:waypoint x="1371" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0mlrlbv_di" bpmnElement="SequenceFlow_0mlrlbv">
-        <di:waypoint x="385" y="801" />
-        <di:waypoint x="488" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1c6ka9h_di" bpmnElement="SequenceFlow_1c6ka9h">
-        <di:waypoint x="513" y="826" />
-        <di:waypoint x="513" y="926" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="521" y="832" width="15" height="14" />
-        </bpmndi:BPMNLabel>
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0n4xku8_di" bpmnElement="SequenceFlow_0n4xku8">
-        <di:waypoint x="538" y="801" />
-        <di:waypoint x="645" y="801" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="584" y="783" width="18" height="14" />
-        </bpmndi:BPMNLabel>
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0klb3ey_di" bpmnElement="SequenceFlow_0klb3ey">
-        <di:waypoint x="923" y="801" />
-        <di:waypoint x="1005" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_11rbv41_di" bpmnElement="SequenceFlow_11rbv41">
-        <di:waypoint x="1475" y="801" />
-        <di:waypoint x="1585" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0t094g7_di" bpmnElement="SequenceFlow_0t094g7">
-        <di:waypoint x="568" y="121" />
-        <di:waypoint x="645" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1o1tu0f_di" bpmnElement="SequenceFlow_1o1tu0f">
-        <di:waypoint x="214" y="289" />
-        <di:waypoint x="285" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0lbdfmt_di" bpmnElement="SequenceFlow_0lbdfmt">
-        <di:waypoint x="1105" y="801" />
-        <di:waypoint x="1197" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1qv8qw1_di" bpmnElement="SequenceFlow_1qv8qw1">
-        <di:waypoint x="1297" y="801" />
-        <di:waypoint x="1375" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0q7yc2c_di" bpmnElement="SequenceFlow_0q7yc2c">
-        <di:waypoint x="1115" y="121" />
-        <di:waypoint x="1193" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1sq6kp6_di" bpmnElement="SequenceFlow_1sq6kp6">
-        <di:waypoint x="385" y="289" />
-        <di:waypoint x="467" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0thd6ny_di" bpmnElement="SequenceFlow_0thd6ny">
-        <di:waypoint x="1293" y="456" />
-        <di:waypoint x="1371" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0477975_di" bpmnElement="SequenceFlow_0477975">
-        <di:waypoint x="1471" y="456" />
-        <di:waypoint x="1584" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0h2oree_di" bpmnElement="SequenceFlow_0h2oree">
-        <di:waypoint x="567" y="456" />
-        <di:waypoint x="645" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_19lsayh_di" bpmnElement="SequenceFlow_19lsayh">
-        <di:waypoint x="1293" y="645" />
-        <di:waypoint x="1371" y="645" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_10ng1vx_di" bpmnElement="SequenceFlow_10ng1vx">
-        <di:waypoint x="1471" y="645" />
-        <di:waypoint x="1584" y="645" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1bevt3a_di" bpmnElement="SequenceFlow_1bevt3a">
-        <di:waypoint x="214" y="801" />
-        <di:waypoint x="285" y="801" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1ey6m1e_di" bpmnElement="SequenceFlow_1ey6m1e">
-        <di:waypoint x="930" y="289" />
-        <di:waypoint x="1015" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNShape id="StartEvent_1omdx56_di" bpmnElement="StartEvent_1omdx56">
-        <dc:Bounds x="715" y="1166" width="36" height="36" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="EndEvent_1jx3026_di" bpmnElement="EndEvent_1jx3026">
-        <dc:Bounds x="1353" y="1166" width="36" height="36" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_1swzdpw_di" bpmnElement="ScriptTask_1swzdpw">
-        <dc:Bounds x="979" y="1144" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_1w67v6s_di" bpmnElement="SequenceFlow_1w67v6s">
-        <di:waypoint x="751" y="1184" />
-        <di:waypoint x="979" y="1184" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_08mlzwz_di" bpmnElement="SequenceFlow_08mlzwz">
-        <di:waypoint x="1079" y="1184" />
-        <di:waypoint x="1353" y="1184" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="ReceiveTask_0zkpdpa_di" bpmnElement="Task_1b5t88h">
         <dc:Bounds x="285" y="416" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_1fk37v7_di" bpmnElement="SequenceFlow_1fk37v7">
-        <di:waypoint x="214" y="456" />
-        <di:waypoint x="285" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_16uz2t9_di" bpmnElement="SequenceFlow_16uz2t9">
-        <di:waypoint x="385" y="456" />
-        <di:waypoint x="467" y="456" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNShape id="BoundaryEvent_15igwk2_di" bpmnElement="BoundaryEvent_0clo9pv">
-        <dc:Bounds x="317" y="478" width="36" height="36" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_12qt5ci_di" bpmnElement="SequenceFlow_12qt5ci">
-        <di:waypoint x="335" y="514" />
-        <di:waypoint x="335" y="611" />
-        <di:waypoint x="335" y="593" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="CallActivity_0v4mw2x_di" bpmnElement="CallActivity_0v4mw2x">
         <dc:Bounds x="1015" y="249" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_1aaozcg_di" bpmnElement="SequenceFlow_1aaozcg">
-        <di:waypoint x="1115" y="289" />
-        <di:waypoint x="1193" y="289" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_046irye_di" bpmnElement="SequenceFlow_046irye">
-        <di:waypoint x="745" y="121" />
-        <di:waypoint x="830" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1o23s0i_di" bpmnElement="SequenceFlow_1o23s0i">
-        <di:waypoint x="930" y="121" />
-        <di:waypoint x="1015" y="121" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0jrclmc_di" bpmnElement="SequenceFlow_0jrclmc">
-        <di:waypoint x="1470" y="121" />
-        <di:waypoint x="1584" y="121" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="ScriptTask_19uxoi8_di" bpmnElement="ScriptTask_19uxoi8">
         <dc:Bounds x="645" y="761" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_0kixzdj_di" bpmnElement="SequenceFlow_0kixzdj">
-        <di:waypoint x="745" y="801" />
-        <di:waypoint x="823" y="801" />
-      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="BoundaryEvent_15igwk2_di" bpmnElement="BoundaryEvent_0clo9pv">
+        <dc:Bounds x="317" y="478" width="36" height="36" />
+      </bpmndi:BPMNShape>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>
 </bpmn:definitions>
diff --git a/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoCreateSliceServiceOption.bpmn b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoCreateSliceServiceOption.bpmn
index ad0732df4d..3ed1999d9a 100644
--- a/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoCreateSliceServiceOption.bpmn
+++ b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoCreateSliceServiceOption.bpmn
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" id="Definitions_1" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="3.4.1">
+<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" id="Definitions_1" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="4.1.1">
   <bpmn:process id="DoCreateSliceServiceOption" name="DoCreateSliceServiceOption" isExecutable="true">
     <bpmn:startEvent id="createNS_StartEvent" name="createOption_StartEvent">
       <bpmn:outgoing>SequenceFlow_1qo2pln</bpmn:outgoing>
     </bpmn:startEvent>
     <bpmn:sequenceFlow id="SequenceFlow_1qo2pln" sourceRef="createNS_StartEvent" targetRef="PreprocessIncomingRequest_task" />
     <bpmn:sequenceFlow id="SequenceFlow_0khtova" sourceRef="PreprocessIncomingRequest_task" targetRef="Task_09nzhwk" />
-    <bpmn:scriptTask id="Task_09nzhwk" name="send request to OOF for NSI options" scriptFormat="groovy">
+    <bpmn:scriptTask id="Task_09nzhwk" name="Prepare OOF Select NSI options request" scriptFormat="groovy">
       <bpmn:incoming>SequenceFlow_0khtova</bpmn:incoming>
-      <bpmn:outgoing>SequenceFlow_1utpplq</bpmn:outgoing>
+      <bpmn:outgoing>Flow_15c2jcx</bpmn:outgoing>
       <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
 def dcso = new DoCreateSliceServiceOption()
-dcso.getNSIOptionfromOOF(execution)</bpmn:script>
+dcso.prepareSelectNSIRequest(execution)</bpmn:script>
     </bpmn:scriptTask>
     <bpmn:scriptTask id="PreprocessIncomingRequest_task" name="Preprocess Request" scriptFormat="groovy">
       <bpmn:incoming>SequenceFlow_1qo2pln</bpmn:incoming>
@@ -73,7 +73,6 @@ dcso.prepareNSSTDecompose(execution)</bpmn:script>
       <bpmn:outgoing>SequenceFlow_0a5f5y6</bpmn:outgoing>
     </bpmn:callActivity>
     <bpmn:sequenceFlow id="SequenceFlow_0a5f5y6" sourceRef="CallActivity_1rfnoe2" targetRef="ScriptTask_1mlytov" />
-    <bpmn:sequenceFlow id="SequenceFlow_1utpplq" sourceRef="Task_09nzhwk" targetRef="ScriptTask_1umbyel" />
     <bpmn:exclusiveGateway id="ExclusiveGateway_1skfk7w" default="SequenceFlow_0wy6oag">
       <bpmn:incoming>SequenceFlow_0d774n5</bpmn:incoming>
       <bpmn:outgoing>SequenceFlow_0wy6oag</bpmn:outgoing>
@@ -84,7 +83,7 @@ dcso.prepareNSSTDecompose(execution)</bpmn:script>
       <bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">#{(execution.getVariable("isNSISuggested" )  == true)}</bpmn:conditionExpression>
     </bpmn:sequenceFlow>
     <bpmn:scriptTask id="ScriptTask_1umbyel" name="prepare NST decomposition" scriptFormat="groovy">
-      <bpmn:incoming>SequenceFlow_1utpplq</bpmn:incoming>
+      <bpmn:incoming>Flow_07ustqm</bpmn:incoming>
       <bpmn:outgoing>SequenceFlow_0piifl1</bpmn:outgoing>
       <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
 def dcso = new DoCreateSliceServiceOption()
@@ -112,124 +111,159 @@ dcso.prepareNSTDecompose(execution)</bpmn:script>
 def dcso = new DoCreateSliceServiceOption()
 dcso.processDecomposition(execution)</bpmn:script>
     </bpmn:scriptTask>
+    <bpmn:callActivity id="Activity_0dlr4ra" name="Handle NSI Selection OOF request" calledElement="DoHandleOofRequest">
+      <bpmn:extensionElements>
+        <camunda:in source="nsiSelectionUrl" target="apiPath" />
+        <camunda:in source="nsiSelection_correlator" target="correlator" />
+        <camunda:in source="nsiSelection_messageType" target="messageType" />
+        <camunda:in source="nsiSelection_timeout" target="timeout" />
+        <camunda:out source="WorkflowException" target="WorkflowException" />
+        <camunda:out source="asyncCallbackResponse" target="nsiSelection_oofResponse" />
+        <camunda:in source="nsiSelection_oofRequest" target="oofRequest" />
+      </bpmn:extensionElements>
+      <bpmn:incoming>Flow_15c2jcx</bpmn:incoming>
+      <bpmn:outgoing>Flow_1mcx2ja</bpmn:outgoing>
+    </bpmn:callActivity>
+    <bpmn:scriptTask id="Activity_049mjag" name="Process OOF response " scriptFormat="groovy">
+      <bpmn:incoming>Flow_1mcx2ja</bpmn:incoming>
+      <bpmn:outgoing>Flow_07ustqm</bpmn:outgoing>
+      <bpmn:script>import org.onap.so.bpmn.infrastructure.scripts.*
+def dcso = new DoCreateSliceServiceOption()
+dcso.processOOFResponse(execution)</bpmn:script>
+    </bpmn:scriptTask>
+    <bpmn:sequenceFlow id="Flow_1mcx2ja" sourceRef="Activity_0dlr4ra" targetRef="Activity_049mjag" />
+    <bpmn:sequenceFlow id="Flow_15c2jcx" sourceRef="Task_09nzhwk" targetRef="Activity_0dlr4ra" />
+    <bpmn:sequenceFlow id="Flow_07ustqm" sourceRef="Activity_049mjag" targetRef="ScriptTask_1umbyel" />
   </bpmn:process>
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="DoCreateSliceServiceOption">
-      <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="createNS_StartEvent">
-        <dc:Bounds x="175" y="107" width="36" height="36" />
+      <bpmndi:BPMNEdge id="SequenceFlow_0d774n5_di" bpmnElement="SequenceFlow_0d774n5">
+        <di:waypoint x="1220" y="125" />
+        <di:waypoint x="1275" y="125" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_086yszq_di" bpmnElement="SequenceFlow_086yszq">
+        <di:waypoint x="1060" y="125" />
+        <di:waypoint x="1120" y="125" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0piifl1_di" bpmnElement="SequenceFlow_0piifl1">
+        <di:waypoint x="920" y="125" />
+        <di:waypoint x="960" y="125" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0hnsycl_di" bpmnElement="SequenceFlow_0hnsycl">
+        <di:waypoint x="1325" y="125" />
+        <di:waypoint x="1993" y="125" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0wy6oag_di" bpmnElement="SequenceFlow_0wy6oag">
+        <di:waypoint x="1300" y="150" />
+        <di:waypoint x="1300" y="351" />
+        <di:waypoint x="1430" y="351" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0a5f5y6_di" bpmnElement="SequenceFlow_0a5f5y6">
+        <di:waypoint x="2061" y="351" />
+        <di:waypoint x="2148" y="351" />
+        <di:waypoint x="2148" y="493" />
+        <di:waypoint x="1960" y="493" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_016vi3s_di" bpmnElement="SequenceFlow_016vi3s">
+        <di:waypoint x="1872" y="351" />
+        <di:waypoint x="1961" y="351" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1r9n9ef_di" bpmnElement="SequenceFlow_1r9n9ef">
+        <di:waypoint x="1860" y="493" />
+        <di:waypoint x="1666" y="493" />
+        <di:waypoint x="1666" y="376" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0m2mr0o_di" bpmnElement="SequenceFlow_0m2mr0o">
+        <di:waypoint x="1691" y="351" />
+        <di:waypoint x="1772" y="351" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0lt2cdo_di" bpmnElement="SequenceFlow_0lt2cdo">
+        <di:waypoint x="1530" y="351" />
+        <di:waypoint x="1641" y="351" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_1ap8kar_di" bpmnElement="SequenceFlow_1ap8kar">
+        <di:waypoint x="1666" y="326" />
+        <di:waypoint x="1666" y="235" />
+        <di:waypoint x="2011" y="235" />
+        <di:waypoint x="2011" y="143" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0khtova_di" bpmnElement="SequenceFlow_0khtova">
+        <di:waypoint x="350" y="125" />
+        <di:waypoint x="390" y="125" />
         <bpmndi:BPMNLabel>
-          <dc:Bounds x="151" y="143" width="86" height="27" />
+          <dc:Bounds x="436" y="108" width="0" height="12" />
         </bpmndi:BPMNLabel>
-      </bpmndi:BPMNShape>
+      </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="SequenceFlow_1qo2pln_di" bpmnElement="SequenceFlow_1qo2pln">
-        <di:waypoint x="211" y="125" />
-        <di:waypoint x="251" y="125" />
-        <di:waypoint x="251" y="125" />
-        <di:waypoint x="293" y="125" />
+        <di:waypoint x="218" y="125" />
+        <di:waypoint x="250" y="125" />
         <bpmndi:BPMNLabel>
           <dc:Bounds x="266" y="123" width="0" height="12" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0khtova_di" bpmnElement="SequenceFlow_0khtova">
-        <di:waypoint x="393" y="125" />
-        <di:waypoint x="460" y="125" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="436" y="108" width="0" height="12" />
-        </bpmndi:BPMNLabel>
+      <bpmndi:BPMNEdge id="Flow_1mcx2ja_di" bpmnElement="Flow_1mcx2ja">
+        <di:waypoint x="640" y="125" />
+        <di:waypoint x="680" y="125" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_15c2jcx_di" bpmnElement="Flow_15c2jcx">
+        <di:waypoint x="490" y="122" />
+        <di:waypoint x="540" y="120" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_07ustqm_di" bpmnElement="Flow_07ustqm">
+        <di:waypoint x="780" y="125" />
+        <di:waypoint x="820" y="125" />
       </bpmndi:BPMNEdge>
-      <bpmndi:BPMNShape id="ScriptTask_1dw39hg_di" bpmnElement="Task_09nzhwk">
-        <dc:Bounds x="460" y="85" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="ScriptTask_03j6ogo_di" bpmnElement="PreprocessIncomingRequest_task">
-        <dc:Bounds x="293" y="85" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="EndEvent_15pcuuc_di" bpmnElement="EndEvent_1x6k78c">
-        <dc:Bounds x="1813" y="107" width="36" height="36" />
+        <dc:Bounds x="1993" y="107" width="36" height="36" />
         <bpmndi:BPMNLabel>
           <dc:Bounds x="412" y="617" width="90" height="12" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ScriptTask_0kecvrc_di" bpmnElement="ScriptTask_0kecvrc">
-        <dc:Bounds x="1250" y="311" width="100" height="80" />
+        <dc:Bounds x="1430" y="311" width="100" height="80" />
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ScriptTask_1mlytov_di" bpmnElement="ScriptTask_1mlytov">
-        <dc:Bounds x="1680" y="453" width="100" height="80" />
+        <dc:Bounds x="1860" y="453" width="100" height="80" />
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="ExclusiveGateway_1y1wzs9_di" bpmnElement="ExclusiveGateway_1y1wzs9" isMarkerVisible="true">
-        <dc:Bounds x="1461" y="326" width="50" height="50" />
+        <dc:Bounds x="1641" y="326" width="50" height="50" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_1ap8kar_di" bpmnElement="SequenceFlow_1ap8kar">
-        <di:waypoint x="1486" y="326" />
-        <di:waypoint x="1486" y="235" />
-        <di:waypoint x="1831" y="235" />
-        <di:waypoint x="1831" y="143" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0lt2cdo_di" bpmnElement="SequenceFlow_0lt2cdo">
-        <di:waypoint x="1350" y="351" />
-        <di:waypoint x="1461" y="351" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0m2mr0o_di" bpmnElement="SequenceFlow_0m2mr0o">
-        <di:waypoint x="1511" y="351" />
-        <di:waypoint x="1592" y="351" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1r9n9ef_di" bpmnElement="SequenceFlow_1r9n9ef">
-        <di:waypoint x="1680" y="493" />
-        <di:waypoint x="1486" y="493" />
-        <di:waypoint x="1486" y="376" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="ScriptTask_1e5ysya_di" bpmnElement="ScriptTask_1e5ysya">
-        <dc:Bounds x="1592" y="311" width="100" height="80" />
+        <dc:Bounds x="1772" y="311" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_016vi3s_di" bpmnElement="SequenceFlow_016vi3s">
-        <di:waypoint x="1692" y="351" />
-        <di:waypoint x="1781" y="351" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="CallActivity_1rfnoe2_di" bpmnElement="CallActivity_1rfnoe2">
-        <dc:Bounds x="1781" y="311" width="100" height="80" />
+        <dc:Bounds x="1961" y="311" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_0a5f5y6_di" bpmnElement="SequenceFlow_0a5f5y6">
-        <di:waypoint x="1881" y="351" />
-        <di:waypoint x="1968" y="351" />
-        <di:waypoint x="1968" y="493" />
-        <di:waypoint x="1780" y="493" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_1utpplq_di" bpmnElement="SequenceFlow_1utpplq">
-        <di:waypoint x="560" y="125" />
-        <di:waypoint x="620" y="125" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="ExclusiveGateway_1skfk7w_di" bpmnElement="ExclusiveGateway_1skfk7w" isMarkerVisible="true">
-        <dc:Bounds x="1095" y="100" width="50" height="50" />
+        <dc:Bounds x="1275" y="100" width="50" height="50" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_0wy6oag_di" bpmnElement="SequenceFlow_0wy6oag">
-        <di:waypoint x="1120" y="150" />
-        <di:waypoint x="1120" y="351" />
-        <di:waypoint x="1250" y="351" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0hnsycl_di" bpmnElement="SequenceFlow_0hnsycl">
-        <di:waypoint x="1145" y="125" />
-        <di:waypoint x="1813" y="125" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNShape id="ScriptTask_1umbyel_di" bpmnElement="ScriptTask_1umbyel">
-        <dc:Bounds x="620" y="85" width="100" height="80" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_0piifl1_di" bpmnElement="SequenceFlow_0piifl1">
-        <di:waypoint x="720" y="125" />
-        <di:waypoint x="780" y="125" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="CallActivity_0ly8xiw_di" bpmnElement="CallActivity_0ly8xiw">
-        <dc:Bounds x="780" y="85" width="100" height="80" />
+        <dc:Bounds x="960" y="85" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNEdge id="SequenceFlow_086yszq_di" bpmnElement="SequenceFlow_086yszq">
-        <di:waypoint x="880" y="125" />
-        <di:waypoint x="940" y="125" />
-      </bpmndi:BPMNEdge>
-      <bpmndi:BPMNEdge id="SequenceFlow_0d774n5_di" bpmnElement="SequenceFlow_0d774n5">
-        <di:waypoint x="1040" y="125" />
-        <di:waypoint x="1095" y="125" />
-      </bpmndi:BPMNEdge>
       <bpmndi:BPMNShape id="ScriptTask_1895p18_di" bpmnElement="Task_1k2ypj0">
-        <dc:Bounds x="940" y="85" width="100" height="80" />
+        <dc:Bounds x="1120" y="85" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="createNS_StartEvent">
+        <dc:Bounds x="182" y="107" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="158" y="143" width="86" height="27" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_03j6ogo_di" bpmnElement="PreprocessIncomingRequest_task">
+        <dc:Bounds x="250" y="85" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1dw39hg_di" bpmnElement="Task_09nzhwk">
+        <dc:Bounds x="390" y="85" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_049mjag_di" bpmnElement="Activity_049mjag">
+        <dc:Bounds x="680" y="85" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0dlr4ra_di" bpmnElement="Activity_0dlr4ra">
+        <dc:Bounds x="540" y="85" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ScriptTask_1umbyel_di" bpmnElement="ScriptTask_1umbyel">
+        <dc:Bounds x="820" y="85" width="100" height="80" />
       </bpmndi:BPMNShape>
     </bpmndi:BPMNPlane>
   </bpmndi:BPMNDiagram>
-</bpmn:definitions>
\ No newline at end of file
+</bpmn:definitions>
diff --git a/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoHandleOofRequest.bpmn b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoHandleOofRequest.bpmn
new file mode 100644
index 0000000000..7ca1a62312
--- /dev/null
+++ b/bpmn/so-bpmn-infrastructure-flows/src/main/resources/subprocess/DoHandleOofRequest.bpmn
@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_0nlt5gi" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="4.1.1">
+  <bpmn:process id="DoHandleOofRequest" name="DoHandleOofRequest" isExecutable="true">
+    <bpmn:startEvent id="StartEvent_1">
+      <bpmn:outgoing>Flow_1jorico</bpmn:outgoing>
+    </bpmn:startEvent>
+    <bpmn:sequenceFlow id="Flow_1fbzzqg" sourceRef="Activity_0tki17o" targetRef="Activity_08ozlfa" />
+    <bpmn:scriptTask id="Activity_08ozlfa" name="Call Oof Adapter" scriptFormat="groovy">
+      <bpmn:incoming>Flow_1fbzzqg</bpmn:incoming>
+      <bpmn:outgoing>Flow_013jfci</bpmn:outgoing>
+      <bpmn:script>import org.onap.so.bpmn.common.scripts.*
+def oofHandler = new DoHandleOofRequest()
+oofHandler .callOofAdapter(execution)
+</bpmn:script>
+    </bpmn:scriptTask>
+    <bpmn:sequenceFlow id="Flow_1jorico" sourceRef="StartEvent_1" targetRef="Activity_0tki17o" />
+    <bpmn:scriptTask id="Activity_0tki17o" name="Preprocess Request" scriptFormat="groovy">
+      <bpmn:incoming>Flow_1jorico</bpmn:incoming>
+      <bpmn:outgoing>Flow_1fbzzqg</bpmn:outgoing>
+      <bpmn:script>import org.onap.so.bpmn.common.scripts.*
+def oofHandler = new DoHandleOofRequest()
+oofHandler .preProcessRequest(execution)
+</bpmn:script>
+    </bpmn:scriptTask>
+    <bpmn:subProcess id="Activity_02ru8n9" name="Sub-process for FalloutHandler and Rollback" triggeredByEvent="true">
+      <bpmn:startEvent id="Event_1r00tca">
+        <bpmn:outgoing>Flow_072knve</bpmn:outgoing>
+        <bpmn:errorEventDefinition id="ErrorEventDefinition_1sy4yh2" />
+      </bpmn:startEvent>
+      <bpmn:endEvent id="Event_1rwmekw">
+        <bpmn:incoming>Flow_0ykpxpc</bpmn:incoming>
+      </bpmn:endEvent>
+      <bpmn:scriptTask id="Activity_11rvko0" name="Handle Unexpected Error" scriptFormat="groovy">
+        <bpmn:incoming>Flow_072knve</bpmn:incoming>
+        <bpmn:outgoing>Flow_0ykpxpc</bpmn:outgoing>
+        <bpmn:script>import org.onap.so.bpmn.common.scripts.*
+ExceptionUtil ex = new ExceptionUtil()
+ex.processJavaException(execution)</bpmn:script>
+      </bpmn:scriptTask>
+      <bpmn:sequenceFlow id="Flow_0ykpxpc" sourceRef="Activity_11rvko0" targetRef="Event_1rwmekw" />
+      <bpmn:sequenceFlow id="Flow_072knve" sourceRef="Event_1r00tca" targetRef="Activity_11rvko0" />
+    </bpmn:subProcess>
+    <bpmn:callActivity id="Activity_1yq993l" name="Receive Async Callback" camunda:modelerTemplate="receiveWorkflowMessage" calledElement="ReceiveWorkflowMessage">
+      <bpmn:extensionElements>
+        <camunda:in source="true" target="isDebugLogEnabled" />
+        <camunda:out source="WorkflowException" target="WorkflowException" />
+        <camunda:in source="messageType" target="RCVWFMSG_messageType" />
+        <camunda:in source="correlator" target="RCVWFMSG_correlator" />
+        <camunda:in source="timeout" target="RCVWFMSG_timeout" />
+        <camunda:out source="WorkflowResponse" target="asyncCallbackResponse" />
+      </bpmn:extensionElements>
+      <bpmn:incoming>Flow_013jfci</bpmn:incoming>
+      <bpmn:outgoing>Flow_1nmoiqi</bpmn:outgoing>
+    </bpmn:callActivity>
+    <bpmn:sequenceFlow id="Flow_013jfci" sourceRef="Activity_08ozlfa" targetRef="Activity_1yq993l" />
+    <bpmn:endEvent id="Event_179tp7r" name="End event">
+      <bpmn:incoming>Flow_1nmoiqi</bpmn:incoming>
+    </bpmn:endEvent>
+    <bpmn:sequenceFlow id="Flow_1nmoiqi" sourceRef="Activity_1yq993l" targetRef="Event_179tp7r" />
+  </bpmn:process>
+  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
+    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="DoHandleOofRequest">
+      <bpmndi:BPMNEdge id="Flow_1jorico_di" bpmnElement="Flow_1jorico">
+        <di:waypoint x="218" y="130" />
+        <di:waypoint x="270" y="130" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_1fbzzqg_di" bpmnElement="Flow_1fbzzqg">
+        <di:waypoint x="370" y="130" />
+        <di:waypoint x="450" y="130" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_013jfci_di" bpmnElement="Flow_013jfci">
+        <di:waypoint x="550" y="130" />
+        <di:waypoint x="641" y="130" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_1nmoiqi_di" bpmnElement="Flow_1nmoiqi">
+        <di:waypoint x="741" y="127" />
+        <di:waypoint x="832" y="127" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="StartEvent_1">
+        <dc:Bounds x="182" y="112" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="154" y="142" width="87" height="27" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_1nfzvjq_di" bpmnElement="Activity_0tki17o">
+        <dc:Bounds x="270" y="90" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0wi75kt_di" bpmnElement="Activity_08ozlfa">
+        <dc:Bounds x="450" y="90" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_1yq993l_di" bpmnElement="Activity_1yq993l">
+        <dc:Bounds x="641" y="87" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_179tp7r_di" bpmnElement="Event_179tp7r">
+        <dc:Bounds x="832" y="109" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="826" y="152" width="50" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_02ru8n9_di" bpmnElement="Activity_02ru8n9" isExpanded="true">
+        <dc:Bounds x="160" y="420" width="781" height="196" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="Flow_0ykpxpc_di" bpmnElement="Flow_0ykpxpc">
+        <di:waypoint x="554" y="524" />
+        <di:waypoint x="828" y="524" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_072knve_di" bpmnElement="Flow_072knve">
+        <di:waypoint x="226" y="524" />
+        <di:waypoint x="454" y="524" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="Event_1r00tca_di" bpmnElement="Event_1r00tca">
+        <dc:Bounds x="190" y="506" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_1rwmekw_di" bpmnElement="Event_1rwmekw">
+        <dc:Bounds x="828" y="506" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_11rvko0_di" bpmnElement="Activity_11rvko0">
+        <dc:Bounds x="454" y="484" width="100" height="80" />
+      </bpmndi:BPMNShape>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+</bpmn:definitions>