Based on Controller Actor calling CDS or APPC(Current Flow)

-Added BBNameSelectionReference table having bbName along with
action,scope,actor
-Updated CatalogDbClient to use BBNameSelectionReference Table
-Updated ControllerExecution bmpn to select flow as per Controller Actor
-Corrected Format Error

Issue-ID: SO-2316
Signed-off-by: Pooja03 <pm00501616@techmahindra.com>
Change-Id: I21fad846249f773308e34abcac134d3ee0694027
Signed-off-by: Manamohan <MS00534989@techmahindra.com>

3 files changed, 477 insertions, 0 deletions

diff --git a/bpmn/so-bpmn-building-blocks/src/main/resources/subprocess/BuildingBlock/ControllerExecutionBB.bpmn b/bpmn/so-bpmn-building-blocks/src/main/resources/subprocess/BuildingBlock/ControllerExecutionBB.bpmn
new file mode 100644
index 0000000000..32d3bce469
--- /dev/null
+++ b/bpmn/so-bpmn-building-blocks/src/main/resources/subprocess/BuildingBlock/ControllerExecutionBB.bpmn
@@ -0,0 +1,241 @@
+<?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:camunda="http://camunda.org/schema/1.0/bpmn" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" id="Definitions_1ahlzqg" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="1.14.0">
+  <bpmn:process id="ControllerExecution" name="ControllerExecutionBB" isExecutable="true">
+    <bpmn:startEvent id="StartEvent_1">
+      <bpmn:outgoing>SequenceFlow_0gmfit3</bpmn:outgoing>
+    </bpmn:startEvent>
+    <bpmn:sequenceFlow id="SequenceFlow_0gmfit3" sourceRef="StartEvent_1" targetRef="ServiceTask_0inxg9l" />
+    <bpmn:endEvent id="EndEvent_0lgvk82">
+      <bpmn:incoming>SequenceFlow_1mkhog2</bpmn:incoming>
+      <bpmn:incoming>SequenceFlow_0no1qag</bpmn:incoming>
+    </bpmn:endEvent>
+    <bpmn:sequenceFlow id="SequenceFlow_1mkhog2" sourceRef="Task_1hs1mn0" targetRef="EndEvent_0lgvk82" />
+    <bpmn:callActivity id="CallActivity_1gfzi2g" name="Abstract CDS&#10;(CDS Call)&#10;" calledElement="AbstractCDSProcessingBB">
+      <bpmn:extensionElements>
+        <camunda:out source="WorkflowException" target="WorkflowException" />
+        <camunda:out source="CDSStatus" target="CDSStatus" />
+        <camunda:in source="executionObject" target="executionObject" />
+      </bpmn:extensionElements>
+      <bpmn:incoming>SequenceFlow_05qembo</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_0cvsnuu</bpmn:outgoing>
+    </bpmn:callActivity>
+    <bpmn:serviceTask id="Task_1hs1mn0" name="Update AAI" camunda:expression="${AAIUpdateTasks.updateOrchestrationStatus(InjectExecution.execute(execution, execution.getVariable(&#34;gBuildingBlockExecution&#34;)),InjectExecution.execute(execution, execution.getVariable(&#34;scope&#34;)),InjectExecution.execute(execution, execution.getVariable(&#34;action&#34;)))}">
+      <bpmn:incoming>SequenceFlow_07tqu82</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_1mkhog2</bpmn:outgoing>
+    </bpmn:serviceTask>
+    <bpmn:sequenceFlow id="SequenceFlow_05qembo" sourceRef="Task_0bhf6tp" targetRef="CallActivity_1gfzi2g" />
+    <bpmn:serviceTask id="Task_0bhf6tp" name="PreProcess Abstract CDS Processing" camunda:expression="${GenericCDSProcessing.buildPayloadBasedOnScopeAndAction(InjectExecution.execute(execution, execution.getVariable(&#34;gBuildingBlockExecution&#34;)))}">
+      <bpmn:incoming>SequenceFlow_0vzx2yr</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_05qembo</bpmn:outgoing>
+    </bpmn:serviceTask>
+    <bpmn:exclusiveGateway id="ExclusiveGateway_13q340y" default="SequenceFlow_15gxql1">
+      <bpmn:incoming>SequenceFlow_0cvsnuu</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_07tqu82</bpmn:outgoing>
+      <bpmn:outgoing>SequenceFlow_15gxql1</bpmn:outgoing>
+    </bpmn:exclusiveGateway>
+    <bpmn:sequenceFlow id="SequenceFlow_0cvsnuu" sourceRef="CallActivity_1gfzi2g" targetRef="ExclusiveGateway_13q340y" />
+    <bpmn:sequenceFlow id="SequenceFlow_07tqu82" name="success" sourceRef="ExclusiveGateway_13q340y" targetRef="Task_1hs1mn0">
+      <bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">#{execution.getVariable("CDSStatus").equals("Success")}</bpmn:conditionExpression>
+    </bpmn:sequenceFlow>
+    <bpmn:endEvent id="EndEvent_0mnaj50">
+      <bpmn:incoming>SequenceFlow_15gxql1</bpmn:incoming>
+      <bpmn:errorEventDefinition id="ErrorEventDefinition_1s1hqgm" errorRef="Error_0aovtfv" />
+    </bpmn:endEvent>
+    <bpmn:sequenceFlow id="SequenceFlow_15gxql1" sourceRef="ExclusiveGateway_13q340y" targetRef="EndEvent_0mnaj50" />
+    <bpmn:serviceTask id="ServiceTask_0inxg9l" name="Set Actor, Scope and Action Params" camunda:expression="${ControllerExecution.setControllerActorScopeAction(InjectExecution.execute(execution, execution.getVariable(&#34;gBuildingBlockExecution&#34;)))}">
+      <bpmn:incoming>SequenceFlow_0gmfit3</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_05j6hg6</bpmn:outgoing>
+      <bpmn:outgoing>SequenceFlow_1lspfyy</bpmn:outgoing>
+    </bpmn:serviceTask>
+    <bpmn:sequenceFlow id="SequenceFlow_05j6hg6" sourceRef="ServiceTask_0inxg9l" targetRef="ExclusiveGateway_0plxwkg" />
+    <bpmn:exclusiveGateway id="ExclusiveGateway_0plxwkg" default="SequenceFlow_1t7hs4k">
+      <bpmn:incoming>SequenceFlow_1lspfyy</bpmn:incoming>
+      <bpmn:incoming>SequenceFlow_05j6hg6</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_1t7hs4k</bpmn:outgoing>
+      <bpmn:outgoing>SequenceFlow_0vzx2yr</bpmn:outgoing>
+    </bpmn:exclusiveGateway>
+    <bpmn:sequenceFlow id="SequenceFlow_1lspfyy" sourceRef="ServiceTask_0inxg9l" targetRef="ExclusiveGateway_0plxwkg" />
+    <bpmn:callActivity id="BBToExecute" name="BB to Execute&#10;" calledElement="${bbName}">
+      <bpmn:extensionElements>
+        <camunda:out source="WorkflowException" target="WorkflowException" />
+        <camunda:out source="WorkflowExceptionErrorMessage" target="WorkflowExceptionErrorMessage" />
+        <camunda:in source="executionObject" target="executionObject" />
+        <camunda:in source="mso-request-id" target="mso-request-id" />
+        <camunda:in source="isRollback" target="isRollback" />
+        <camunda:out source="StatusMessage" target="StatusMessage" />
+      </bpmn:extensionElements>
+      <bpmn:incoming>SequenceFlow_0fv03vt</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_0no1qag</bpmn:outgoing>
+      <bpmn:outgoing>SequenceFlow_0op5irz</bpmn:outgoing>
+    </bpmn:callActivity>
+    <bpmn:sequenceFlow id="SequenceFlow_1t7hs4k" sourceRef="ExclusiveGateway_0plxwkg" targetRef="Task_1rc2j9" />
+    <bpmn:sequenceFlow id="SequenceFlow_0no1qag" sourceRef="BBToExecute" targetRef="EndEvent_0lgvk82" />
+    <bpmn:sequenceFlow id="SequenceFlow_0fv03vt" sourceRef="Task_1rc2j9" targetRef="BBToExecute" />
+    <bpmn:serviceTask id="Task_1rc2j9" name="select BB " camunda:expression="${ControllerExecution.selectBB(InjectExecution.execute(execution, execution.getVariable(&#34;gBuildingBlockExecution&#34;)))}">
+      <bpmn:incoming>SequenceFlow_1t7hs4k</bpmn:incoming>
+      <bpmn:outgoing>SequenceFlow_0fv03vt</bpmn:outgoing>
+    </bpmn:serviceTask>
+    <bpmn:endEvent id="EndEvent_1lxwuh2">
+      <bpmn:incoming>SequenceFlow_0op5irz</bpmn:incoming>
+      <bpmn:errorEventDefinition id="ErrorEventDefinition_0z001cu" errorRef="Error_0aovtfv" />
+    </bpmn:endEvent>
+    <bpmn:sequenceFlow id="SequenceFlow_0op5irz" sourceRef="BBToExecute" targetRef="EndEvent_1lxwuh2" />
+    <bpmn:sequenceFlow id="SequenceFlow_0vzx2yr" name="Actor= CDS" sourceRef="ExclusiveGateway_0plxwkg" targetRef="Task_0bhf6tp">
+      <bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">${execution.getVariable("controller_actor") == "CDS"}</bpmn:conditionExpression>
+    </bpmn:sequenceFlow>
+  </bpmn:process>
+  <bpmn:error id="Error_0aovtfv" name="MSOWorkflowException" errorCode="MSOWorkflowException" />
+  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
+    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="ControllerExecution">
+      <bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="StartEvent_1">
+        <dc:Bounds x="160" y="323" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="-17" y="279" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_0gmfit3_di" bpmnElement="SequenceFlow_0gmfit3">
+        <di:waypoint x="196" y="341" />
+        <di:waypoint x="259" y="341" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="32.5" y="236" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="EndEvent_0lgvk82_di" bpmnElement="EndEvent_0lgvk82">
+        <dc:Bounds x="1129" y="323" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1025" y="251" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_1mkhog2_di" bpmnElement="SequenceFlow_1mkhog2">
+        <di:waypoint x="1079" y="462" />
+        <di:waypoint x="1147" y="462" />
+        <di:waypoint x="1147" y="359" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="918" y="357" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="CallActivity_1gfzi2g_di" bpmnElement="CallActivity_1gfzi2g">
+        <dc:Bounds x="725" y="422" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ServiceTask_0404s6a_di" bpmnElement="Task_1hs1mn0">
+        <dc:Bounds x="979" y="422" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_05qembo_di" bpmnElement="SequenceFlow_05qembo">
+        <di:waypoint x="672" y="462" />
+        <di:waypoint x="725" y="462" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="503.5" y="357" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="ServiceTask_01mv1si_di" bpmnElement="Task_0bhf6tp">
+        <dc:Bounds x="572" y="422" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="ExclusiveGateway_13q340y_di" bpmnElement="ExclusiveGateway_13q340y" isMarkerVisible="true">
+        <dc:Bounds x="868" y="437" width="50" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="698" y="327" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_0cvsnuu_di" bpmnElement="SequenceFlow_0cvsnuu">
+        <di:waypoint x="825" y="462" />
+        <di:waypoint x="868" y="462" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="651.5" y="357" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_07tqu82_di" bpmnElement="SequenceFlow_07tqu82">
+        <di:waypoint x="918" y="462" />
+        <di:waypoint x="979" y="462" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="856" y="409" width="41" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="EndEvent_0mnaj50_di" bpmnElement="EndEvent_0mnaj50">
+        <dc:Bounds x="875" y="565" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="698" y="531" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_15gxql1_di" bpmnElement="SequenceFlow_15gxql1">
+        <di:waypoint x="893" y="487" />
+        <di:waypoint x="893" y="565" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="713" y="436" width="90" height="20" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="ServiceTask_0inxg9l_di" bpmnElement="ServiceTask_0inxg9l">
+        <dc:Bounds x="259" y="301" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_05j6hg6_di" bpmnElement="SequenceFlow_05j6hg6">
+        <di:waypoint x="359" y="341" />
+        <di:waypoint x="399" y="341" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="184" y="240" width="90" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="ExclusiveGateway_0plxwkg_di" bpmnElement="ExclusiveGateway_0plxwkg" isMarkerVisible="true">
+        <dc:Bounds x="399" y="316" width="50" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="309" y="255" width="0" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_1lspfyy_di" bpmnElement="SequenceFlow_1lspfyy">
+        <di:waypoint x="359" y="341" />
+        <di:waypoint x="399" y="341" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="229" y="240" width="0" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="CallActivity_01dem38_di" bpmnElement="BBToExecute">
+        <dc:Bounds x="824" y="168" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_1t7hs4k_di" bpmnElement="SequenceFlow_1t7hs4k">
+        <di:waypoint x="424" y="316" />
+        <di:waypoint x="424" y="208" />
+        <di:waypoint x="572" y="208" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="271" y="89" width="83" height="36" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0no1qag_di" bpmnElement="SequenceFlow_0no1qag">
+        <di:waypoint x="924" y="208" />
+        <di:waypoint x="1147" y="208" />
+        <di:waypoint x="1147" y="323" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="840.5" y="107" width="90" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0fv03vt_di" bpmnElement="SequenceFlow_0fv03vt">
+        <di:waypoint x="672" y="208" />
+        <di:waypoint x="824" y="208" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="598" y="107" width="0" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNShape id="ServiceTask_0qd9p4w_di" bpmnElement="Task_1rc2j9">
+        <dc:Bounds x="572" y="168" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="EndEvent_1lxwuh2_di" bpmnElement="EndEvent_1lxwuh2">
+        <dc:Bounds x="856" y="84" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="679" y="50" width="0" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="SequenceFlow_0op5irz_di" bpmnElement="SequenceFlow_0op5irz">
+        <di:waypoint x="874" y="168" />
+        <di:waypoint x="874" y="120" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="739" y="58" width="0" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="SequenceFlow_0vzx2yr_di" bpmnElement="SequenceFlow_0vzx2yr">
+        <di:waypoint x="424" y="366" />
+        <di:waypoint x="424" y="462" />
+        <di:waypoint x="572" y="462" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="455" y="436" width="60" height="12" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNEdge>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+</bpmn:definitions>
\ No newline at end of file
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecution.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecution.java
new file mode 100644
index 0000000000..86d56005f6
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecution.java
@@ -0,0 +1,109 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2019  Tech Mahindra
+ * ================================================================================
+ * 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.infrastructure.flowspecific.tasks;
+
+import java.util.Optional;
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.entities.BuildingBlock;
+import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
+import org.onap.so.bpmn.servicedecomposition.entities.ResourceKey;
+import org.onap.so.bpmn.servicedecomposition.tasks.ExtractPojosForBB;
+import org.onap.so.client.exception.ExceptionBuilder;
+import org.onap.so.db.catalog.beans.BBNameSelectionReference;
+import org.onap.so.db.catalog.beans.VnfResourceCustomization;
+import org.onap.so.db.catalog.client.CatalogDbClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ControllerExecution {
+    private static final Logger logger = LoggerFactory.getLogger(ControllerExecution.class);
+    private static final String CONTROLLER_ACTOR = "controllerActor";
+    private static final String BUILDING_BLOCK = "buildingBlock";
+    private static final String SCOPE = "scope";
+    private static final String ACTION = "action";
+    private static final String BBNAME = "bbName";
+    @Autowired
+    private ExceptionBuilder exceptionUtil;
+    @Autowired
+    private CatalogDbClient catalogDbClient;
+    @Autowired
+    private ExtractPojosForBB extractPojosForBB;
+
+    /**
+     * Setting Controller Actor, Scope and Action Variables in BuildingBlockExecution object
+     * 
+     * @param execution - BuildingBlockExecution object
+     */
+    public void setControllerActorScopeAction(BuildingBlockExecution execution) {
+        try {
+            GenericVnf genericVnf = extractPojosForBB.extractByKey(execution, ResourceKey.GENERIC_VNF_ID);
+            String modleUuid = genericVnf.getModelInfoGenericVnf().getModelCustomizationUuid();
+            VnfResourceCustomization vnfResourceCustomization =
+                    catalogDbClient.getVnfResourceCustomizationByModelCustomizationUUID(modleUuid);
+
+            // Fetching Controller Actor at VNF level if null then Controller Actor is set as "APPC"
+            String controllerActor = Optional.ofNullable(vnfResourceCustomization.getControllerActor()).orElse("APPC");
+            ExecuteBuildingBlock executeBuildingBlock = execution.getVariable(BUILDING_BLOCK);
+            BuildingBlock buildingBlock = executeBuildingBlock.getBuildingBlock();
+            String scope = Optional.ofNullable(buildingBlock.getBpmnScope()).orElseThrow(
+                    () -> new NullPointerException("BPMN Scope is NULL in the orchestration_flow_reference table "));
+            String action = Optional.ofNullable(buildingBlock.getBpmnAction()).orElseThrow(
+                    () -> new NullPointerException("BPMN Action is NULL in the orchestration_flow_reference table "));
+            execution.setVariable(SCOPE, scope);
+            execution.setVariable(ACTION, action);
+            execution.setVariable(CONTROLLER_ACTOR, controllerActor);
+            logger.debug("Executing Controller Execution for ControllerActor: {}, Scope: {} , Action: {}",
+                    controllerActor, scope, action);
+
+        } catch (Exception ex) {
+            logger.error("An exception occurred while fetching Controller Actor,Scope and Action ", ex);
+            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, ex);
+        }
+    }
+
+    /**
+     * Selecting bbName from BBNameSelectionReference and setting the value in a variable of BuildingBlockExecution
+     * 
+     * @param execution - BuildingBlockExecution object
+     */
+    public void selectBB(BuildingBlockExecution execution) {
+        try {
+
+            String controllerActor = execution.getVariable(CONTROLLER_ACTOR);
+            String action = Optional.of((String) execution.getVariable(ACTION)).get();
+            String scope = Optional.of((String) execution.getVariable(SCOPE)).get();
+            BBNameSelectionReference bbNameSelectionReference =
+                    catalogDbClient.getBBNameSelectionReference(controllerActor, scope, action);
+            String bbName = bbNameSelectionReference.getBbName();
+            execution.setVariable(BBNAME, bbName);
+            logger.debug(" Executing {} BPMN", bbName);
+        } catch (Exception ex) {
+            logger.error("An exception occurred while getting bbname from catalogdb ", ex);
+            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, ex);
+
+        }
+
+    }
+}
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecutionTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecutionTest.java
new file mode 100644
index 0000000000..72a987c395
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/flowspecific/tasks/ControllerExecutionTest.java
@@ -0,0 +1,127 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2019  Tech Mahindra
+ * ================================================================================
+ * 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.infrastructure.flowspecific.tasks;
+
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.when;
+import java.util.UUID;
+import org.camunda.bpm.engine.delegate.BpmnError;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentMatchers;
+import org.mockito.InjectMocks;
+import org.onap.so.bpmn.BaseTaskTest;
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
+import org.onap.so.bpmn.servicedecomposition.bbobjects.ServiceInstance;
+import org.onap.so.bpmn.servicedecomposition.entities.BuildingBlock;
+import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
+import org.onap.so.bpmn.servicedecomposition.entities.ResourceKey;
+import org.onap.so.bpmn.servicedecomposition.generalobjects.RequestContext;
+import org.onap.so.client.exception.BBObjectNotFoundException;
+import org.onap.so.db.catalog.beans.BBNameSelectionReference;
+import org.onap.so.db.catalog.beans.VnfResourceCustomization;
+
+
+public class ControllerExecutionTest extends BaseTaskTest {
+
+    @InjectMocks
+    private ControllerExecution controllerExecution = new ControllerExecution();
+
+    private static final String TEST_SCOPE = "vfModule";
+    private static final String TEST_BBNAME = "ConfigurationScaleOut";
+    private static final String TEST_ACTION = "configScaleOut";
+    private static final String TEST_CONTROLLER_ACTOR = "APPC";
+
+    private BuildingBlock buildingBlock = new BuildingBlock();
+    VnfResourceCustomization vnfResourceCustomization = new VnfResourceCustomization();
+    private ExecuteBuildingBlock executeBuildingBlock = new ExecuteBuildingBlock();
+    private GenericVnf genericVnf;
+    private ServiceInstance serviceInstance;
+    private RequestContext requestContext;
+    private String msoRequestId;
+
+
+    @Before
+    public void before() throws BBObjectNotFoundException {
+
+        genericVnf = setGenericVnf();
+        serviceInstance = setServiceInstance();
+        msoRequestId = UUID.randomUUID().toString();
+        requestContext = setRequestContext();
+        requestContext.setMsoRequestId(msoRequestId);
+        gBBInput.setRequestContext(requestContext);
+        buildingBlock.setBpmnAction(TEST_ACTION);
+        buildingBlock.setBpmnScope(TEST_SCOPE);
+        executeBuildingBlock.setBuildingBlock(buildingBlock);
+        execution.setVariable("buildingBlock", executeBuildingBlock);
+
+        doThrow(new BpmnError("BPMN Error")).when(exceptionUtil)
+                .buildAndThrowWorkflowException(any(BuildingBlockExecution.class), eq(7000), any(Exception.class));
+
+        when(extractPojosForBB.extractByKey(any(), ArgumentMatchers.eq(ResourceKey.GENERIC_VNF_ID)))
+                .thenReturn(genericVnf);
+        when(extractPojosForBB.extractByKey(any(), ArgumentMatchers.eq(ResourceKey.SERVICE_INSTANCE_ID)))
+                .thenReturn(serviceInstance);
+
+
+    }
+
+    @Test
+    public void testSetControllerActorScopeAction() throws Exception {
+
+
+        doReturn(vnfResourceCustomization).when(catalogDbClient).getVnfResourceCustomizationByModelCustomizationUUID(
+                genericVnf.getModelInfoGenericVnf().getModelCustomizationUuid());
+        controllerExecution.setControllerActorScopeAction(execution);
+        assertEquals(TEST_SCOPE, execution.getVariable("scope"));
+        assertEquals(TEST_ACTION, execution.getVariable("action"));
+        assertEquals(TEST_CONTROLLER_ACTOR, execution.getVariable("controllerActor"));
+
+    }
+
+
+    @Test
+    public void testSelectBB() throws Exception {
+        // given
+        BBNameSelectionReference bbNameSelectionReference = new BBNameSelectionReference();
+        bbNameSelectionReference.setBbName(TEST_BBNAME);
+        bbNameSelectionReference.setAction(TEST_ACTION);
+        bbNameSelectionReference.setControllerActor(TEST_CONTROLLER_ACTOR);
+        bbNameSelectionReference.setScope(TEST_SCOPE);
+        doReturn(bbNameSelectionReference).when(catalogDbClient).getBBNameSelectionReference(TEST_CONTROLLER_ACTOR,
+                TEST_SCOPE, TEST_ACTION);
+        execution.setVariable("controllerActor", TEST_CONTROLLER_ACTOR);
+        execution.setVariable("scope", TEST_SCOPE);
+        execution.setVariable("action", TEST_ACTION);
+
+        // when
+        controllerExecution.selectBB(execution);
+        // verify
+        assertEquals(TEST_BBNAME, execution.getVariable("bbName"));
+    }
+
+}