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https://issues.apache.org/jira/browse/FLINK-6756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704602#comment-16704602
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ASF GitHub Bot commented on FLINK-6756:
---------------------------------------
dawidwys commented on a change in pull request #7168: [FLINK-6756][DataStream
API] Provide Rich AsyncFunction to Scala API …
URL: https://github.com/apache/flink/pull/7168#discussion_r237784432
##########
File path:
flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/async/util/ScalaRichAsyncFunctionWrapper.scala
##########
@@ -0,0 +1,58 @@
+/*
+ * 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.flink.streaming.api.scala.async.util
+
+import org.apache.flink.api.common.functions.RuntimeContext
+import org.apache.flink.configuration.Configuration
+import org.apache.flink.streaming.api.functions.async.{ResultFuture,
RichAsyncFunction => JRichAsyncFunction}
+import org.apache.flink.streaming.api.scala.async.{JavaResultFutureWrapper,
RichAsyncFunction}
+
+/**
+ * A wrapper function that exposes a Scala RichAsyncFunction as a Java Rich
Async Function.
+ *
+ * The Scala and Java RichAsyncFunctions differ in their type of
"ResultFuture"
+ * - Scala RichAsyncFunction:
org.apache.flink.streaming.api.scala.async.ResultFuture
+ * - Java RichAsyncFunction:
org.apache.flink.streaming.api.functions.async.ResultFuture
+ */
+final class ScalaRichAsyncFunctionWrapper[IN, OUT](func: RichAsyncFunction[IN,
OUT])
Review comment:
Annotate with `@Internal`
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> Provide RichAsyncFunction to Scala API suite
> --------------------------------------------
>
> Key: FLINK-6756
> URL: https://issues.apache.org/jira/browse/FLINK-6756
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Reporter: Andrea Spina
> Assignee: Andrea Spina
> Priority: Major
> Labels: pull-request-available
>
> I can't find any tracking info about the chance to have RichAsyncFunction in
> the Scala API suite. I think it'd be nice to have this function in order to
> access open/close methods and the RuntimeContext.
> I was able to retrieve
> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/There-is-no-Open-and-Close-method-in-Async-I-O-API-of-Scala-td11591.html#a11593
> only, so my question is if there are some blocking issues avoiding this
> feature. [~till.rohrmann]
> If it's possible and nobody already have done it, I can assign the issue to
> myself in order to implement it.
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