ms/controllerblueprints/modules/blueprint-scripts/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/scripts/BluePrintScriptsServiceImpl.kt

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   3  * Modifications Copyright © 2018 IBM.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.onap.ccsdk.cds.controllerblueprints.scripts
  19
  20 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
  21 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintScriptsService
  22 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintContext
  23 import org.springframework.stereotype.Service
  24 import java.io.File
  25 import java.util.*
  26 import kotlin.script.experimental.api.ResultValue
  27 import kotlin.script.experimental.api.resultOrNull
  28 import kotlin.script.experimental.jvmhost.createJvmCompilationConfigurationFromTemplate
  29
  30 @Service
  31 open class BluePrintScriptsServiceImpl : BluePrintScriptsService {
  32
  33     override fun <T> scriptInstance(blueprintContext: BluePrintContext, scriptClassName: String,
  34                                     reCompile: Boolean): T {
  35
  36         val kotlinScriptPath = blueprintContext.rootPath.plus(File.separator)
  37                 .plus(BluePrintConstants.TOSCA_SCRIPTS_KOTLIN_DIR)
  38
  39         val compiledJar = kotlinScriptPath.plus(File.separator)
  40                 .plus(getBluePrintScriptsJarName(blueprintContext))
  41
  42         val scriptSource = BluePrintSourceCode()
  43
  44         val sources: MutableList<String> = arrayListOf()
  45         sources.add(kotlinScriptPath)
  46         scriptSource.blueprintKotlinSources = sources
  47         scriptSource.moduleName = "${blueprintContext.name()}-${blueprintContext.version()}-cba-kts"
  48         scriptSource.targetJarFile = File(compiledJar)
  49         scriptSource.regenerate = reCompile
  50
  51         val compilationConfiguration = createJvmCompilationConfigurationFromTemplate<BluePrintKotlinScript>()
  52         val scriptEvaluator = BluePrintScriptEvaluator(scriptClassName)
  53
  54         val compiledResponse = BlueprintScriptingHost(scriptEvaluator).eval(scriptSource, compilationConfiguration,
  55                 null)
  56
  57         val returnValue = compiledResponse.resultOrNull()?.returnValue as? ResultValue.Value
  58
  59         return returnValue?.value!! as T
  60     }
  61
  62     override fun <T> scriptInstance(scriptClassName: String): T {
  63         val args = ArrayList<Any?>()
  64         return Thread.currentThread().contextClassLoader.loadClass(scriptClassName).constructors
  65                 .single().newInstance(*args.toArray()) as T
  66     }
  67 }
  68
  69 fun getBluePrintScriptsJarName(blueprintContext: BluePrintContext): String {
  70     return "${blueprintContext.name()}-${blueprintContext.version()}-cba-kts.jar"
  71 }