How to use

decode

method

in

org.springframework.core.codec.StringDecoder

@Override
public Flux<Object> read(
    ResolvableType elementType, ReactiveHttpInputMessage message, Map<String, Object> hints) {
  boolean shouldWrap = isServerSentEvent(elementType);
  ResolvableType valueType = (shouldWrap ? elementType.getGeneric() : elementType);
  return stringDecoder.decode(message.getBody(), STRING_TYPE, null, hints)
      .bufferUntil(line -> line.equals(""))
      .concatMap(lines -> buildEvent(lines, valueType, shouldWrap, hints));
}

@Override
public Flux<Object> read(
    ResolvableType elementType, ReactiveHttpInputMessage message, Map<String, Object> hints) {
  boolean shouldWrap = isServerSentEvent(elementType);
  ResolvableType valueType = (shouldWrap ? elementType.getGeneric() : elementType);
  return stringDecoder.decode(message.getBody(), STRING_TYPE, null, hints)
      .bufferUntil(line -> line.equals(""))
      .concatMap(lines -> buildEvent(lines, valueType, shouldWrap, hints));
}

@Override
protected void testDecodeError(Publisher<DataBuffer> input, ResolvableType outputType,
    @Nullable MimeType mimeType, @Nullable Map<String, Object> hints) {
  input = Flux.concat(
      Flux.from(input).take(1),
      Flux.error(new InputException()));
  Flux<String> result = this.decoder.decode(input, outputType, mimeType, hints);
  StepVerifier.create(result)
      .expectError(InputException.class)
      .verify();
}

@Test
public void decodeEmptyDataBuffer() {
  Flux<DataBuffer> input = Flux.just(stringBuffer(""));
  Flux<String> output = this.decoder.decode(input,
      TYPE, null, Collections.emptyMap());
  StepVerifier.create(output)
      .expectNext("")
      .expectComplete().verify();
}

@Override
public Flux<Object> read(ResolvableType elementType, ReactiveHttpInputMessage message,
    Map<String, Object> hints) {
  boolean shouldWrap = isServerSentEvent(elementType);
  ResolvableType valueType = (shouldWrap ? elementType.getGeneric() : elementType);
  return stringDecoder.decode(message.getBody(), STRING_TYPE, null, Collections.emptyMap())
      .bufferUntil(line -> line.equals(""))
      .concatMap(lines -> buildEvent(lines, valueType, shouldWrap, hints));
}

@Override
public Flux<Object> read(
    ResolvableType elementType, ReactiveHttpInputMessage message, Map<String, Object> hints) {
  boolean shouldWrap = isServerSentEvent(elementType);
  ResolvableType valueType = (shouldWrap ? elementType.getGeneric() : elementType);
  return stringDecoder.decode(message.getBody(), STRING_TYPE, null, hints)
      .bufferUntil(line -> line.equals(""))
      .concatMap(lines -> buildEvent(lines, valueType, shouldWrap, hints));
}