gerrit.onap Code Review - ccsdk/cds.git/blob

   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.core.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 java.io.File
  24 import java.util.*
  25 import kotlin.script.experimental.api.ResultValue
  26 import kotlin.script.experimental.api.resultOrNull
  27 import kotlin.script.experimental.jvmhost.createJvmCompilationConfigurationFromTemplate
  28
  29 open class BluePrintScriptsServiceImpl : BluePrintScriptsService {
  30
  31     override suspend fun <T> scriptInstance(blueprintContext: BluePrintContext, scriptClassName: String,
  32                                             reCompile: Boolean): T {
  33
  34         val kotlinScriptPath = blueprintContext.rootPath.plus(File.separator)
  35                 .plus(BluePrintConstants.TOSCA_SCRIPTS_KOTLIN_DIR)
  36
  37         val compiledJar = kotlinScriptPath.plus(File.separator)
  38                 .plus(bluePrintScriptsJarName(blueprintContext))
  39
  40         val scriptSource = BluePrintSourceCode()
  41
  42         val sources: MutableList<String> = arrayListOf()
  43         sources.add(kotlinScriptPath)
  44         scriptSource.blueprintKotlinSources = sources
  45         scriptSource.moduleName = "${blueprintContext.name()}-${blueprintContext.version()}-cba-kts"
  46         scriptSource.targetJarFile = File(compiledJar)
  47         scriptSource.regenerate = reCompile
  48
  49         val compilationConfiguration = createJvmCompilationConfigurationFromTemplate<BluePrintKotlinScript>()
  50         val scriptEvaluator = BluePrintScriptEvaluator(scriptClassName)
  51
  52         val compiledResponse = BlueprintScriptingHost(scriptEvaluator).eval(scriptSource, compilationConfiguration,
  53                 null)
  54
  55         val returnValue = compiledResponse.resultOrNull()?.returnValue as? ResultValue.Value
  56
  57         return returnValue?.value!! as T
  58     }
  59
  60     override suspend fun <T> scriptInstance(scriptClassName: String): T {
  61         val args = ArrayList<Any?>()
  62         return Thread.currentThread().contextClassLoader.loadClass(scriptClassName).constructors
  63                 .single().newInstance(*args.toArray()) as T
  64     }
  65
  66     private fun bluePrintScriptsJarName(blueprintContext: BluePrintContext): String {
  67         return "${blueprintContext.name()}-${blueprintContext.version()}-cba-kts.jar"
  68     }
  69 }