Add node template workflow service.

Change-Id: I3a9167fe58b697f8fb9c7f5fd09768950afe1ff4
Issue-ID: CCSDK-1154
Signed-off-by: Muthuramalingam, Brinda Santh <brindasanth@in.ibm.com>
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/CustomFunctions.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/CustomFunctions.kt
index 7d98c42..462935d 100644
--- a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/CustomFunctions.kt
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/CustomFunctions.kt
@@ -50,6 +50,10 @@
     return JacksonUtils.jsonNodeFromObject(this)
 }
 
+fun MutableMap<String, *>.asObjectNode(): ObjectNode {
+    return JacksonUtils.objectNodeFromObject(this)
+}
+
 fun format(message: String, vararg args: Any?): String {
     if (args != null && args.isNotEmpty()) {
         return MessageFormatter.arrayFormat(message, args).message
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/interfaces/BluePrintWorkflowExecutionService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/interfaces/BluePrintWorkflowExecutionService.kt
new file mode 100644
index 0000000..c536aef
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/core/interfaces/BluePrintWorkflowExecutionService.kt
@@ -0,0 +1,26 @@
+/*
+ *  Copyright © 2019 IBM.
+ *
+ *  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.
+ */
+
+package org.onap.ccsdk.apps.controllerblueprints.core.interfaces
+
+import org.onap.ccsdk.apps.controllerblueprints.core.service.BluePrintRuntimeService
+
+interface BluePrintWorkflowExecutionService<Input, Output> {
+
+    suspend fun executeBluePrintWorkflow(bluePrintRuntimeService: BluePrintRuntimeService<*>,
+                                         executionServiceInput: Input,
+                                         properties: MutableMap<String, Any> = hashMapOf()): Output
+}
\ No newline at end of file