Package org.springframework.http.codec.json

Class KotlinSerializationJsonEncoder

java.lang.Object
org.springframework.core.codec.AbstractEncoder<Object>
org.springframework.http.codec.json.KotlinSerializationJsonEncoder
All Implemented Interfaces:
Encoder<Object>
public class KotlinSerializationJsonEncoder extends AbstractEncoder<Object>
Encode from an Object stream to a byte stream of JSON objects using kotlinx.serialization.

This encoder can be used to bind @Serializable Kotlin classes, open polymorphic serialization is not supported. It supports application/json and application/*+json with various character sets, UTF-8 being the default.

Since:
5.3
Author:
Sebastien Deleuze

  • Constructor Details

    • KotlinSerializationJsonEncoder

      public KotlinSerializationJsonEncoder()

    • KotlinSerializationJsonEncoder

      public KotlinSerializationJsonEncoder(kotlinx.serialization.json.Json json)

  • Method Details

    • canEncode

      public boolean canEncode(ResolvableType elementType, @Nullable MimeType mimeType)
      Description copied from interface: Encoder
      Whether the encoder supports the given source element type and the MIME type for the output stream.
      Specified by:
      canEncode in interface Encoder<Object>
      Overrides:
      canEncode in class AbstractEncoder<Object>
      Parameters:
      elementType - the type of elements in the source stream
      mimeType - the MIME type for the output stream (can be null if not specified)
      Returns:
      true if supported, false otherwise

    • encode

      public reactor.core.publisher.Flux<DataBuffer> encode(Publisher<?> inputStream, DataBufferFactory bufferFactory, ResolvableType elementType, @Nullable MimeType mimeType, @Nullable Map<String,Object> hints)
      Description copied from interface: Encoder
      Encode a stream of Objects of type T into a DataBuffer output stream.
      Parameters:
      inputStream - the input stream of Objects to encode. If the input should be encoded as a single value rather than as a stream of elements, an instance of Mono should be used.
      bufferFactory - for creating output stream DataBuffer's
      elementType - the expected type of elements in the input stream; this type must have been previously passed to the Encoder.canEncode(org.springframework.core.ResolvableType, org.springframework.util.MimeType) method and it must have returned true.
      mimeType - the MIME type for the output content (optional)
      hints - additional information about how to encode
      Returns:
      the output stream

    • encodeValue

      public DataBuffer encodeValue(Object value, DataBufferFactory bufferFactory, ResolvableType valueType, @Nullable MimeType mimeType, @Nullable Map<String,Object> hints)
      Description copied from interface: Encoder
      Encode an Object of type T to a data buffer. This is useful for scenarios, that distinct messages (or events) are encoded and handled individually, in fully aggregated form.

      By default this method raises UnsupportedOperationException and it is expected that some encoders cannot produce a single buffer or cannot do so synchronously (e.g. encoding a Resource).

      Parameters:
      value - the value to be encoded
      bufferFactory - for creating the output DataBuffer
      valueType - the type for the value being encoded
      mimeType - the MIME type for the output content (optional)
      hints - additional information about how to encode
      Returns:
      the encoded content