linkis-computation-governance/linkis-engineconn/linkis-engineconn-core/src/main/scala/com/webank/wedatasphere/linkis/engineconn/core/execution/EngineConnExecution.scala

/*
 *
 * Copyright 2019 WeBank
 *
 * 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 com.webank.wedatasphere.linkis.engineconn.core.execution

import com.webank.wedatasphere.linkis.common.utils.{ClassUtils, Logging, Utils}
import com.webank.wedatasphere.linkis.engineconn.common.execution.EngineConnExecution
import com.webank.wedatasphere.linkis.manager.engineplugin.common.exception.EngineConnBuildFailedException

import scala.collection.convert.decorateAsScala._


object EngineConnExecution extends Logging {

  private val engineExecutions = initEngineExecutions

  info("The list of EngineConnExecution: " + engineExecutions.toList)

  private def initEngineExecutions: Array[EngineConnExecution] = {
    Utils.tryThrow {
      val reflections = ClassUtils.reflections
      val allSubClass = reflections.getSubTypesOf(classOf[EngineConnExecution])
      allSubClass.asScala.filter(!ClassUtils.isInterfaceOrAbstract(_)).map(_.newInstance).toArray.sortBy(_.getOrder)
    }(t => throw new EngineConnBuildFailedException(20000, "Cannot instance EngineConnExecution.", t))
  }

  def getEngineConnExecutions: Array[EngineConnExecution] = engineExecutions

}