How can I serialize/deserialize java.util.stream.Stream using Jackson?

Question

Assuming I have the following object

public class DataObjectA {
    private Stream dataObjectBStream;
}

How can I serial

Answer 1

I had below class having 2 elements one of them was Stream, had to annotate the getterStream method with@JsonSerializer and then override Serialize method, produces stream of JSON in my Response API:

public class DataSetResultBean extends ResultBean { private static final long serialVersionUID = 1L;

private final List structure;
private final Stream datapoints;

private static class DataPointSerializer extends JsonSerializer> 
{
    @Override
    public void serialize(Stream stream, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException
    {
        gen.writeStartArray();
        try
        {
            stream.forEach(dp -> serializeSingle(gen, dp));
        }
        catch (UncheckedIOException e)
        {
            throw (IOException) e.getCause();
        }
        finally
        {
            stream.close();
        }
        gen.writeEndArray();
    }
    
    public synchronized void serializeSingle(JsonGenerator gen, DataPoint dp) throws UncheckedIOException
    {
        try
        {
            gen.writeStartObject();
            
            for (Entry, ScalarValue> entry: dp.entrySet())
            {
                gen.writeFieldName(entry.getKey().getName());
                gen.writeRawValue(entry.getValue().toString());
            }
            
            gen.writeEndObject();
        }
        catch (IOException e)
        {
            throw new UncheckedIOException(e);
        }
    }
}

public DataSetResultBean(DataSet dataset)
{
    super("DATASET");
    
    structure = dataset.getMetadata().stream().map(ComponentBean::new).collect(toList());
    datapoints = dataset.stream();
}

public List getStructure()
{
    return structure;
}

@JsonSerialize(using = DataPointSerializer.class)
public Stream getDatapoints()
{
    return datapoints;
}

}