How to use

MessageContentResponse

in

com.linecorp.bot.client

  @Override
  public void execute() throws IOException {
    final String richMenuId = checkNotNull(arguments.getRichMenuId(), "--rich-menu-id= is not set.");
    final String out = checkNotNull(arguments.getOut(), "--out= is not set.");
    final MessageContentResponse messageContentResponse =
        getUnchecked(lineMessagingClient.getRichMenuImage(richMenuId));

    log.info("Request Successfully finished. {}", messageContentResponse);

    try (OutputStream os = new FileOutputStream(out)) {
      StreamUtils.copy(messageContentResponse.getStream(), os);
    }

    log.info("Successfully finished. Output = {}", out);
  }
}

  private MessageContentResponse convert(final Response<ResponseBody> response) {
    return MessageContentResponse
        .builder()
        .length(response.body().contentLength())
        .allHeaders(response.headers().toMultimap())
        .mimeType(response.body().contentType().toString())
        .stream(response.body().byteStream())
        .build();
  }
}

@Test
public void onResponseSuccessTest() throws Exception {
  Response<ResponseBody> response =
      Response.success(ResponseBody.create(MediaType.parse("image/jpeg"),
                         ""));
  // Do
  target.onResponse(call, response);
  // Verify
  assertThat(target).isCompleted();
  final MessageContentResponse messageContentResponse = target.get();
  assertThat(messageContentResponse.getLength()).isEqualTo(0);
  assertThat(messageContentResponse.getStream())
      .hasSameContentAs(new ByteArrayInputStream(new byte[] {}));
  assertThat(messageContentResponse.getAllHeaders())
      .isEmpty();
}

@Test
public void getMessageContentTest() throws Exception {
  whenCall(retrofitMock.getMessageContent(any()),
       ResponseBody.create(MediaType.parse("image/jpeg"), ZERO_BYTES));
  // Do
  final MessageContentResponse contentResponse = target.getMessageContent("ID").get();
  // Verify
  verify(retrofitMock, only()).getMessageContent("ID");
  assertThat(contentResponse.getLength()).isEqualTo(0);
  assertThat(contentResponse.getMimeType()).isEqualTo("image/jpeg");
}

@Test
public void getRichMenuImageTest() throws Exception {
  whenCall(retrofitMock.getRichMenuImage(any()),
       ResponseBody.create(MediaType.parse("image/jpeg"), ZERO_BYTES));
  // Do
  final MessageContentResponse messageContentResponse = target.getRichMenuImage("ID").get();
  // Verify
  verify(retrofitMock, only()).getRichMenuImage("ID");
  assertThat(messageContentResponse.getLength()).isZero();
}