protected EndpointConfig initWriter(ObjectMapper mapper) {
// first common config
if (_activeView != null) {
_writer = mapper.writerWithView(_activeView);
} else {
_writer = mapper.writer();
}
if (_rootName != null) {
_writer = _writer.withRootName(_rootName);
}
// Then features
if (_serEnable != null) {
_writer = _writer.withFeatures(_serEnable);
}
if (_serDisable != null) {
_writer = _writer.withoutFeatures(_serDisable);
}
// then others
// Finally: couple of features we always set
/* Important: we are NOT to close the underlying stream after
* mapping, so we need to instruct parser:
*/
_writer.getJsonFactory().disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
return this;
}
@Test
public void jsonview_persistence_should_manage_all_properties() throws Exception {
Page myPage = createAFilledPage();
// We serialize and deserialize our object
Page pageAfterJsonProcessing =
objectMapper.readValue(
objectMapper.writerWithView(JsonViewPersistence.class).writeValueAsString(myPage),
Page.class);
assertThat(pageAfterJsonProcessing.getName()).isEqualTo(myPage.getName());
assertThat(pageAfterJsonProcessing.getId()).isEqualTo(myPage.getId());
assertThat(pageAfterJsonProcessing.getData()).isNotEmpty();
assertThat(pageAfterJsonProcessing.getRows()).isNotEmpty();
// A rows contains a list of elements. We verify the first
Element element = pageAfterJsonProcessing.getRows().get(0).get(0);
assertThat(element.getPropertyValues()).isNotNull();
assertThat(element.getDimension().get("xs")).isEqualTo(12);
}
@Test
public void jsonview_light_should_only_manage_id_and_name() throws Exception {
String json =
objectMapper.writerWithView(JsonViewLight.class).writeValueAsString(createAFilledPage());
assertThat(json).isEqualTo("{\"id\":\"UUID\",\"name\":\"myPage\",\"type\":\"page\"}");
}
@SuppressWarnings("resource")
public void writeJsonResponse(
HttpServletResponse response,
Object responseObject,
Class<?> jsonView,
boolean streamResponse,
boolean isMultipart)
throws IOException, JsonGenerationException, JsonMappingException {
ObjectMapper objectMapper = configurationService.getJsonHandler().getMapper();
if (isMultipart) {
response.setContentType(RouterController.TEXT_HTML.toString());
response.setCharacterEncoding(RouterController.TEXT_HTML.getCharSet().name());
ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
bos.write("<html><body><textarea>".getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
String responseJson;
if (jsonView == null) {
responseJson = objectMapper.writeValueAsString(responseObject);
} else {
responseJson = objectMapper.writerWithView(jsonView).writeValueAsString(responseObject);
}
responseJson = responseJson.replace(""", "\\"");
bos.write(responseJson.getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
bos.write("</textarea></body></html>".getBytes(ExtDirectSpringUtil.UTF8_CHARSET));
response.setContentLength(bos.size());
FileCopyUtils.copy(bos.toByteArray(), response.getOutputStream());
} else {
response.setContentType(APPLICATION_JSON.toString());
response.setCharacterEncoding(APPLICATION_JSON.getCharSet().name());
ServletOutputStream outputStream = response.getOutputStream();
if (!streamResponse) {
ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
JsonGenerator jsonGenerator =
objectMapper.getFactory().createJsonGenerator(bos, JsonEncoding.UTF8);
if (jsonView == null) {
objectMapper.writeValue(jsonGenerator, responseObject);
} else {
objectMapper.writerWithView(jsonView).writeValue(jsonGenerator, responseObject);
}
response.setContentLength(bos.size());
outputStream.write(bos.toByteArray());
jsonGenerator.close();
} else {
JsonGenerator jsonGenerator =
objectMapper.getFactory().createJsonGenerator(outputStream, JsonEncoding.UTF8);
if (jsonView == null) {
objectMapper.writeValue(jsonGenerator, responseObject);
} else {
objectMapper.writerWithView(jsonView).writeValue(jsonGenerator, responseObject);
}
jsonGenerator.close();
}
outputStream.flush();
}
}