8000 Avro4sEncodingException · Issue #862 · sksamuel/avro4s · GitHub
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Avro4sEncodingException #862

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HilbertGodel opened this issue Dec 18, 2024 · 1 comment
Open

Avro4sEncodingException #862

HilbertGodel opened this issue Dec 18, 2024 · 1 comment
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@HilbertGodel
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HilbertGodel commented Dec 18, 2024 •
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case class Foo(a: String, b: String)

 implicit object FooEncoder extends Encoder[Foo] {

   override val schemaFor = SchemaFor[Foo]

   override def encode(foo: Foo): GenericData.Record = {
     val record = new GenericData.Record(schema)
     println(schema.toString())
     record.put("a", foo.a.toUpperCase)
     record.put("b", foo.b.toUpperCase)
     record
   }
 }
 implicit object FooDecoder extends Decoder[Foo] {

   override val schemaFor = SchemaFor[Foo]

   override def decode(value: Any) = {
     val record = value.asInstanceOf[GenericRecord]
     Foo(record.get("a").toString.toLowerCase, record.get("b").toString.toLowerCase)
   }
 }

 val format = RecordFormat[Foo]
 // record is a type that implements both GenericRecord and Specific Record
 val record = format.to(Foo("alpha", "beta"))
 println(record)

Raised Exception: Exception in thread "main" com.sksamuel.avro4s.Avro4sEncodingException: Cannot marshall an instance of Foo(alpha,beta) to a Record (had class class org.apache.avro.generic.GenericData$Record, output was {"a": "ALPHA", "b": "BETA"})

Scala Version: 2.12.19
avro4s Version: 4.1.2
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stale bot commented Apr 26, 2025

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale bot added the abandoned label Apr 26, 2025
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