pjfanning commented on code in PR #156: URL: https://github.com/apache/pekko-persistence-jdbc/pull/156#discussion_r1576761429
########## core/src/main/scala/org/apache/pekko/persistence/jdbc/state/scaladsl/DurableStateExceptionSupport.scala: ########## @@ -0,0 +1,49 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.pekko.persistence.jdbc.state.scaladsl + +import java.lang.invoke.{ MethodHandles, MethodType } + +import scala.util.Try + +/** + * INTERNAL API + * + * Support for creating a `DeleteRevisionException`if the class is + * available on the classpath. Pekko 1.0 does not have this class, but + * it is added in Pekko 1.1. + */ +private[scaladsl] object DurableStateExceptionSupport { + val DeleteRevisionExceptionClass = + "org.apache.pekko.persistence.state.exception.DeleteRevisionException" + private val methodHandleLookup = MethodHandles.publicLookup() + + private def exceptionClassOpt: Option[Class[_]] = + Try(Class.forName(DeleteRevisionExceptionClass)).toOption + + private lazy val constructorOpt = exceptionClassOpt.map { clz => + val mt = MethodType.methodType(classOf[Unit], classOf[String]) + methodHandleLookup.findConstructor(clz, mt) + } + + def createDeleteRevisionExceptionIfSupported(message: String): Option[Exception] = + constructorOpt.map { constructor => + constructor.invoke(message).asInstanceOf[Exception] + } + Review Comment: I prefer the current style in my PR. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@pekko.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@pekko.apache.org For additional commands, e-mail: notifications-h...@pekko.apache.org
