wireup script execution

src/main/kotlin/com/restapi/integ/Scripting.kt

@@ -1,17 +1,29 @@
 package com.restapi.integ
 
 import com.restapi.config.AppConfig.Companion.appConfig
+import com.restapi.domain.DataModel
+import com.restapi.domain.Session
+import org.slf4j.Logger
 import java.io.File
+import java.util.concurrent.ConcurrentHashMap
 import javax.script.Invocable
 import javax.script.ScriptEngineManager
 
 
 object Scripting {
+    private val engineMap = ConcurrentHashMap<String, Invocable>()
 
-    fun execute(name: String, params: Map<String, Any>): Any {
+    private fun getEngine(scriptName: String) = engineMap.computeIfAbsent(scriptName) {
         val engine = ScriptEngineManager().getEngineByExtension("kts")!!
-        engine.eval(File(appConfig.scriptsPath(), "$name.kts").reader())
-        val invocator = engine as Invocable
-        return invocator.invokeFunction("execute", params)
+        engine.eval(File(appConfig.scriptsPath(), scriptName).reader())
+        engine as Invocable
+    }
+
+    fun execute(scriptName: String, fnName: String, params: Map<String, Any>, logger: Logger): Any {
+        return getEngine(scriptName).invokeFunction(fnName, params, Session.database, logger)
+    }
+
+    fun preSave(scriptName: String, fnName: String, data: DataModel, logger: Logger): Any {
+        return getEngine(scriptName).invokeFunction(fnName, data, Session.database, logger)
     }
 }