[jira] [Assigned] (SPARK-27457) modify bean encoder to support avro objects

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-27457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-27457:
------------------------------------

    Assignee: Apache Spark

> modify bean encoder to support avro objects
> -------------------------------------------
>
>                 Key: SPARK-27457
>                 URL: https://issues.apache.org/jira/browse/SPARK-27457
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 2.4.1
>            Reporter: Taoufik DACHRAOUI
>            Assignee: Apache Spark
>            Priority: Major
>
> Currently we modified JavaTypeInference to be able to create encoders for Avro objects.
>  
> we have now three solutions to encode avro objects: [https://github.com/apache/spark/pull/22878], [https://github.com/apache/spark/pull/24299], and [https://github.com/apache/spark/pull/24367]
> The test we used for Encoders.bean is as follows:
>  
> {code:java}
> implicit val avroExampleEncoder = Encoders.bean[AvroExample1](classOf[AvroExample1]).asInstanceOf[ExpressionEncoder[AvroExample1]]
> val input: AvroExample1 = AvroExample1.newBuilder()
>  .setMyarray(List("Foo", "Bar").asJava)
>  .setMyboolean(true)
>  .setMybytes(java.nio.ByteBuffer.wrap("MyBytes".getBytes()))
>  .setMydouble(2.5)
>  .setMyfixed(new Magic("magic".getBytes))
>  .setMyfloat(25.0F)
>  .setMyint(100)
>  .setMylong(10L)
>  .setMystring("hello")
>  .setMymap(Map(
>  "foo" -> new java.lang.Integer(1),
>  "bar" -> new java.lang.Integer(2)).asJava)
>  .setMymoney(Money.newBuilder().setAmount(100.0F).setCurrency(Currency.EUR).build())
>  .build()
> val row: InternalRow = avroExampleEncoder.toRow(input)
> val output: AvroExample1 = avroExampleEncoder.resolveAndBind().fromRow(row)
> val ds: Dataset[AvroExample1] = List(input).toDS()
> println(ds.schema)
> println(ds.collect().toList)
> ds.write.format("avro").save("example1")
> val fooDF = spark.read.format("avro").load("example1")
> val fooDS = fooDF.as[AvroExample1]
> println(fooDS.collect().toList)
>  
> {code}
> The change is made in the branch [https://github.com/mazeboard/spark/tree/bean-encoder]
> *with 105 additions and 39 deletions. (excluding the code for tests)*



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