Scala InvocationTargetException类代码示例

//设置package包名称以及导入依赖的类
package akka.actor

import scala.collection.immutable
import java.lang.reflect.InvocationTargetException
import scala.reflect.ClassTag
import scala.util.Try


class ReflectiveDynamicAccess(val classLoader: ClassLoader) extends DynamicAccess {

  override def getClassFor[T: ClassTag](fqcn: String): Try[Class[_ <: T]] =
    Try[Class[_ <: T]]({
      val c = Class.forName(fqcn, false, classLoader).asInstanceOf[Class[_ <: T]]
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isAssignableFrom(c)) c else throw new ClassCastException(t + " is not assignable from " + c)
    })

  override def createInstanceFor[T: ClassTag](clazz: Class[_], args: immutable.Seq[(Class[_], AnyRef)]): Try[T] =
    Try {
      val types = args.map(_._1).toArray
      val values = args.map(_._2).toArray
      val constructor = clazz.getDeclaredConstructor(types: _*)
      constructor.setAccessible(true)
      val obj = constructor.newInstance(values: _*)
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isInstance(obj)) obj.asInstanceOf[T] else throw new ClassCastException(clazz.getName + " is not a subtype of " + t)
    } recover { case i: InvocationTargetException if i.getTargetException ne null ? throw i.getTargetException }

  override def createInstanceFor[T: ClassTag](fqcn: String, args: immutable.Seq[(Class[_], AnyRef)]): Try[T] =
    getClassFor(fqcn) flatMap { c ? createInstanceFor(c, args) }

  override def getObjectFor[T: ClassTag](fqcn: String): Try[T] = {
    val classTry =
      if (fqcn.endsWith("$")) getClassFor(fqcn)
      else getClassFor(fqcn + "$") recoverWith { case _ ? getClassFor(fqcn) }
    classTry flatMap { c ?
      Try {
        val module = c.getDeclaredField("MODULE$")
        module.setAccessible(true)
        val t = implicitly[ClassTag[T]].runtimeClass
        module.get(null) match {
          case null                  ? throw new NullPointerException
          case x if !t.isInstance(x) ? throw new ClassCastException(fqcn + " is not a subtype of " + t)
          case x: T                  ? x
        }
      } recover { case i: InvocationTargetException if i.getTargetException ne null ? throw i.getTargetException }
    }
  }
} 

//设置package包名称以及导入依赖的类
package knot.data.util

import java.lang.reflect.InvocationTargetException

import scala.reflect.ClassTag
import scala.util.Try

trait ReflectionAccessor {
  def getClassFor[T: ClassTag](classLoader: ClassLoader, fullName: String): Try[Class[_ <: T]] = {
    Try[Class[_ <: T]]({
      val c = Class.forName(fullName, false, classLoader).asInstanceOf[Class[_ <: T]]
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isAssignableFrom(c)) {
        c
      } else {
        throw new ClassCastException(s"$t is not assignable from $c")
      }
    })
  }

  def createInstanceFor[T: ClassTag](clazz: Class[_]): Try[T] = {
    Try {
      val ctor = clazz.getDeclaredConstructor()
      ctor.setAccessible(true)
      val obj = ctor.newInstance()
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isInstance(obj)) {
        obj.asInstanceOf[T]
      } else {
        throw new ClassCastException(s"${clazz.getName} is not a subtype of $t")
      }
    } recover { case i: InvocationTargetException if i.getTargetException ne null => throw i.getTargetException }
  }
} 

//设置package包名称以及导入依赖的类
package knot.core.util

import java.lang.reflect.InvocationTargetException

import scala.reflect.ClassTag
import scala.util.Try

trait ReflectionAccessor {
  def getClassFor[T: ClassTag](classLoader: ClassLoader, fullName: String): Try[Class[_ <: T]] = {
    Try[Class[_ <: T]]({
      val c = Class.forName(fullName, false, classLoader).asInstanceOf[Class[_ <: T]]
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isAssignableFrom(c)) {
        c
      } else {
        throw new ClassCastException(s"$t is not assignable from $c")
      }
    })
  }

  def createInstanceFor[T: ClassTag](clazz: Class[_]): Try[T] = {
    Try {
      val ctor = clazz.getDeclaredConstructor()
      ctor.setAccessible(true)
      val obj = ctor.newInstance()
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isInstance(obj)) {
        obj.asInstanceOf[T]
      } else {
        throw new ClassCastException(s"${clazz.getName} is not a subtype of $t")
      }
    } recover { case i: InvocationTargetException if i.getTargetException ne null => throw i.getTargetException }
  }
} 

//设置package包名称以及导入依赖的类
package akka.actor

import scala.collection.immutable
import java.lang.reflect.InvocationTargetException
import scala.reflect.ClassTag
import scala.util.Try


class ReflectiveDynamicAccess(val classLoader: ClassLoader) extends DynamicAccess {

  override def getClassFor[T: ClassTag](fqcn: String): Try[Class[_ <: T]] =
    Try[Class[_ <: T]]({
      val c = Class.forName(fqcn, false, classLoader).asInstanceOf[Class[_ <: T]]
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isAssignableFrom(c)) c else throw new ClassCastException(t + " is not assignable from " + c)
    })

  override def createInstanceFor[T: ClassTag](clazz: Class[_], args: immutable.Seq[(Class[_], AnyRef)]): Try[T] =
    Try {
      val types = args.map(_._1).toArray
      val values = args.map(_._2).toArray
      val constructor = clazz.getDeclaredConstructor(types: _*)
      constructor.setAccessible(true)
      val obj = constructor.newInstance(values: _*)
      val t = implicitly[ClassTag[T]].runtimeClass
      if (t.isInstance(obj)) obj.asInstanceOf[T] else throw new ClassCastException(clazz.getName + " is not a subtype of " + t)
    } recover { case i: InvocationTargetException if i.getTargetException ne null ? throw i.getTargetException }

  override def createInstanceFor[T: ClassTag](fqcn: String, args: immutable.Seq[(Class[_], AnyRef)]): Try[T] =
    getClassFor(fqcn) flatMap { c ? createInstanceFor(c, args) }

  override def getObjectFor[T: ClassTag](fqcn: String): Try[T] = {
    val classTry =
      if (fqcn.endsWith("$")) getClassFor(fqcn)
      else getClassFor(fqcn + "$") recoverWith { case _ ? getClassFor(fqcn) }
    classTry flatMap { c ?
      Try {
        val module = c.getDeclaredField("MODULE$")
        module.setAccessible(true)
        val t = implicitly[ClassTag[T]].runtimeClass
        module.get(null) match {
          case null ? throw new NullPointerException
          case x if !t.isInstance(x) ? throw new ClassCastException(fqcn + " is not a subtype of " + t)
          case x: T ? x
        }
      } recover { case i: InvocationTargetException if i.getTargetException ne null ? throw i.getTargetException }
    }
  }
} 

//设置package包名称以及导入依赖的类
package one.lockstep.vault.spi.impl.android

import java.io.InputStream
import java.lang.reflect.InvocationTargetException

import one.lockstep.util.Logging
import android.content.Context
import android.content.res.AssetManager

object AndroidUtil extends Logging {

  def currentApplication: Context =
    try {
      val activityThreadClass = Class.forName("android.app.ActivityThread")
      val currentApplicationMethod = activityThreadClass.getMethod("currentApplication")
      val currentApplication = currentApplicationMethod.invoke(null).asInstanceOf[Context]
      currentApplication
    } catch {
      case [email protected](_: ClassNotFoundException | _: NoSuchMethodException |
                  _: IllegalAccessException | _: InvocationTargetException) =>
        throw new RuntimeException("failed to determine current application context", cause)
    }

  def openAsset(context: Context, assetName: String): InputStream =
    context.getAssets.open(assetName, AssetManager.ACCESS_BUFFER)

  def assetExists(context: Context, assetName: String): Boolean = {
    val segments = assetName.split("/")
    val (path, name) = (segments.init.mkString("/"), segments.last)
    context.getAssets.list(path).contains(name)
  }

} 

//设置package包名称以及导入依赖的类
package com.atomist.rug.spi

import java.lang.reflect.InvocationTargetException

import com.atomist.rug.RugRuntimeException
import com.atomist.rug.runtime.js.interop.NashornUtils
import com.atomist.tree.TreeNode
import com.atomist.tree.content.text.OutOfDateNodeException


  def invoke(target: Object, rawArgs: Seq[AnyRef]): Object = {
    val args = rawArgs.map(a => NashornUtils.toJavaType(a))
    // Include TreeNode methods, although the annotations won't be inherited
    val methods = target.getClass.getMethods.toSeq.filter(m =>
      this.name.equals(m.getName) &&
        (m.getDeclaredAnnotations.exists(_.isInstanceOf[ExportFunction]) || TreeNodeOperations.contains(m.getName)) &&
        this.parameters.size == m.getParameterCount
    )
    if (methods.size != 1)
      throw new IllegalArgumentException(
        s"Operation [$name] cannot be invoked on [${target.getClass.getName}]: Found ${methods.size} definitions with ${parameters.size}, required exactly 1: " +
          s"Known methods=[${methods.mkString(",")}]"
      )

    try {
      methods.head.invoke(target, args: _*)
    } catch {
      case e: InvocationTargetException if e.getCause.isInstanceOf[OutOfDateNodeException] => throw e.getCause // we meant to do this
      case t: Throwable =>
        val argDiagnostics = args map {
          case null => "null"
          case o => s"$o: ${o.getClass}"
        }
        throw new RugRuntimeException(null, s"Exception invoking ${methods.head} with args=${argDiagnostics.mkString(",")}: ${t.getMessage}", t)
    }
  }
}

object TypeOperation {

  val TreeNodeAllTypeOperations: Seq[TypeOperation] =
    new ReflectiveTypeOperationFinder(classOf[TreeNode]).allOperations

  val TreeNodeTypeOperations: Seq[TypeOperation] =
    new ReflectiveTypeOperationFinder(classOf[TreeNode]).operations

  val TreeNodeType = new Typed {
    override val name = "TreeNode"

    override def description: String = "TreeNode operations"

    override def allOperations = TreeNodeAllTypeOperations

    override def operations = TreeNodeTypeOperations
  }

  val TreeNodeOperations: Set[String] =
    TreeNodeAllTypeOperations.map(_.name).toSet
} 

//设置package包名称以及导入依赖的类
package pl.touk.nussknacker.engine.management

import java.io.File
import java.lang.reflect.InvocationTargetException

import com.typesafe.config.Config
import pl.touk.nussknacker.engine.api.deployment.test.{TestData, TestResults}
import pl.touk.nussknacker.engine.util.ThreadUtils
import pl.touk.nussknacker.engine.util.loader.JarClassLoader

import scala.reflect.runtime.{universe => ru}

object FlinkProcessTestRunner {
  def apply(config: Config, jarFile: File) = {
    new FlinkProcessTestRunner(config, JarClassLoader(jarFile))
  }
}

class FlinkProcessTestRunner(config: Config, jarClassLoader: JarClassLoader) {
  private val invoker: ru.MethodMirror = {
    val m = ru.runtimeMirror(jarClassLoader.classLoader)
    val module = m.staticModule("pl.touk.nussknacker.engine.process.runner.FlinkTestMain")
    val im = m.reflectModule(module)
    val method = im.symbol.info.decl(ru.TermName("run")).asMethod
    val objMirror = m.reflect(im.instance)
    objMirror.reflectMethod(method)
  }

  def test(processId: String, json: String, testData: TestData): TestResults = {
    //we have to use context loader, as in UI we have don't have nussknacker-process on classpath...
    ThreadUtils.withThisAsContextClassLoader(jarClassLoader.classLoader) {
      tryToInvoke(testData, json).asInstanceOf[TestResults]
    }
  }

  def tryToInvoke(testData: TestData, json: String): Any = try {
    invoker(json, config, testData, List(jarClassLoader.jarUrl))
  } catch {
    case e: InvocationTargetException => throw e.getTargetException
  }
} 

//设置package包名称以及导入依赖的类
package com.programmaticallyspeaking.ncd.infra

import java.lang.reflect.{InvocationHandler, InvocationTargetException, Method}
import java.util.concurrent.Executor

import org.slf4s.Logging

import scala.concurrent.{Await, Future, Promise}
import scala.reflect.ClassTag
import scala.concurrent.duration._
import scala.util.{Failure, Success, Try}

class ExecutorProxy(executor: Executor) {

  def createFor[A <: AnyRef : ClassTag](instance: A): A = {
    val clazz = implicitly[ClassTag[A]].runtimeClass
    java.lang.reflect.Proxy.newProxyInstance(clazz.getClassLoader, Array(clazz), new Handler(instance)).asInstanceOf[A]
  }

  class Handler(instance: AnyRef) extends InvocationHandler with Logging {
    import scala.concurrent.ExecutionContext.Implicits._
    private val className = instance.getClass.getName
    override def invoke(proxy: scala.Any, method: Method, args: Array[AnyRef]): AnyRef = {
      val resultPromise = Promise[AnyRef]()

      val before = System.nanoTime()

      executor.execute(() => {
        Try(method.invoke(instance, args: _*)) match {
          case Success(f: Future[AnyRef]) => resultPromise.completeWith(f)
          case Success(result) => resultPromise.success(result)
          case Failure(t: InvocationTargetException) => resultPromise.failure(t.getCause)
          case Failure(t) => resultPromise.failure(t)
        }
      })

      resultPromise.future.onComplete { _ =>
        val methodName = method.getName
        val millis = (System.nanoTime() - before).nanos.toMillis
        log.trace(s"Elapsed time for $className.$methodName = $millis ms")
      }

      if (classOf[Future[_]].isAssignableFrom(method.getReturnType)) resultPromise.future
      else Await.result(resultPromise.future, 30.seconds) //TODO: Configurable
    }
  }
} 

//设置package包名称以及导入依赖的类
package webby.route.v2

import java.lang.reflect.{InvocationTargetException, Method}
import java.util.regex.{Matcher, Pattern}

import io.netty.handler.codec.http.HttpMethod
import webby.api.mvc.Handler
import webby.route.{DomainProvider, Var}

class LinkedRouteV2(val name: String,
                    val domainProvider: DomainProvider[_],
                    val method: HttpMethod,
                    val basePath: String,
                    val pattern: Pattern,
                    routeLinksForDomainData: (Any) => RouteHandlers,
                    val vars: Vector[Var[_]],
                    val varIndices: Vector[Int],
                    val linkMethod: Method) {
  require(!vars.contains(null), "All variables must be used in url. " + toString)
  require(varIndices.size == linkMethod.getParameterTypes.size, "Method argument count mismatch. Seems method with the same name already exists. You should rename it, or make it final. " + toString)

  def resolve(domain: Any, m: Matcher): Option[Handler] = {
    val routeLinks = routeLinksForDomainData(domain)
    var i: Int = 0
    val ln = varIndices.size
    val args = Array.ofDim[AnyRef](ln)
    while (i < ln) {
      val group: String = m.group(varIndices(i) + 1)
      val vr: Var[_] = vars(i)
      try {
        args(i) = vr.fromString(group).asInstanceOf[AnyRef]
      } catch {
        // ?????? ??? ???????? ???????? (??? ???????, ??? NumberFormatException, ????? ????? ??????? ??????? ??? int).
        case e: Throwable => return None
      }
      i += 1
    }
    try {
      Some(linkMethod.invoke(routeLinks, args: _*).asInstanceOf[Handler])
    } catch {
      case e: InvocationTargetException => throw e.getCause
    }
  }

  override def toString: String = method.name() + " (" + basePath + ") " + pattern + " - " + name
} 

//设置package包名称以及导入依赖的类
package com.unstablebuild.autobreaker

import java.lang.reflect.{InvocationHandler, InvocationTargetException, Method}

import akka.actor.Scheduler
import com.typesafe.scalalogging.StrictLogging

import scala.concurrent.{ExecutionContext, Future}
import scala.{Proxy => BaseProxy}

class CircuitBreakerHandler(val self: Any, breaker: AutoBreaker)(implicit ec: ExecutionContext, scheduler: Scheduler)
  extends InvocationHandler
    with BaseProxy
    with StrictLogging {

  private val future = classOf[Future[_]]

  override def invoke(proxy: Any, method: Method, args: Array[AnyRef]): AnyRef = {

    def callMethod: AnyRef = method.invoke(self, args: _*)

    try {
      method.getReturnType match {
        case `future` if canWrap(method) =>
          breaker.call(future.cast(callMethod))
        case _ =>
          callMethod
      }
    } catch {
      case e: InvocationTargetException => throw e.getTargetException
    }
  }

  private def canWrap(method: Method): Boolean =
    !self.getClass.getMethod(method.getName, method.getParameterTypes: _*).isAnnotationPresent(classOf[NoCircuitBreaker])

}