@Override
public JSONEntity read(Class<? extends JSONEntity> clazz, HttpInputMessage inputMessage)
throws IOException, HttpMessageNotReadableException {
// First read the string
String jsonString =
JSONEntityHttpMessageConverter.readToString(
inputMessage.getBody(), inputMessage.getHeaders().getContentType().getCharSet());
try {
return EntityFactory.createEntityFromJSONString(jsonString, clazz);
} catch (JSONObjectAdapterException e) {
// Try to convert entity type to a concrete type and try again. See PLFM-2079.
try {
JSONObject jsonObject = new JSONObject(jsonString);
if (jsonObject.has(ENTITY_TYPE)) {
// get the entity type so we can replace it with concrete type
String type = jsonObject.getString(ENTITY_TYPE);
jsonObject.remove(ENTITY_TYPE);
jsonObject.put(CONCRETE_TYPE, type);
jsonString = jsonObject.toString();
// try again
return EntityFactory.createEntityFromJSONString(jsonString, clazz);
} else {
// Something else went wrong
throw new HttpMessageNotReadableException(e.getMessage(), e);
}
} catch (JSONException e1) {
throw new HttpMessageNotReadableException(e1.getMessage(), e);
} catch (JSONObjectAdapterException e2) {
throw new HttpMessageNotReadableException(e2.getMessage(), e);
}
}
}
/** Resolves the given {@link RequestBody @RequestBody} annotation. */
@SuppressWarnings("unchecked")
protected Object resolveRequestBody(
MethodParameter methodParam, NativeWebRequest webRequest, Object handler) throws Exception {
HttpInputMessage inputMessage = createHttpInputMessage(webRequest);
Class paramType = methodParam.getParameterType();
MediaType contentType = inputMessage.getHeaders().getContentType();
if (contentType == null) {
StringBuilder builder =
new StringBuilder(ClassUtils.getShortName(methodParam.getParameterType()));
String paramName = methodParam.getParameterName();
if (paramName != null) {
builder.append(' ');
builder.append(paramName);
}
throw new HttpMediaTypeNotSupportedException(
"Cannot extract @RequestBody parameter ("
+ builder.toString()
+ "): no Content-Type found");
}
List<MediaType> allSupportedMediaTypes = new ArrayList<MediaType>();
if (this.messageConverters != null) {
for (HttpMessageConverter<?> messageConverter : this.messageConverters) {
allSupportedMediaTypes.addAll(messageConverter.getSupportedMediaTypes());
if (messageConverter.canRead(paramType, contentType)) {
return messageConverter.read(paramType, inputMessage);
}
}
}
throw new HttpMediaTypeNotSupportedException(contentType, allSupportedMediaTypes);
}
@SuppressWarnings({"unchecked", "rawtypes"})
private ModelAndView handleResponseError(
ModelAndView exception, HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpInputMessage inputMessage = new ServletServerHttpRequest(request);
List<MediaType> acceptedMediaTypes = inputMessage.getHeaders().getAccept();
if (acceptedMediaTypes.isEmpty()) {
acceptedMediaTypes = Collections.singletonList(MediaType.ALL);
}
MediaType.sortByQualityValue(acceptedMediaTypes);
HttpOutputMessage outputMessage = new ServletServerHttpResponse(response);
Class<?> returnValueType = exception.getClass();
List<HttpMessageConverter<?>> messageConverters = super.getMessageConverters();
if (messageConverters != null) {
for (MediaType acceptedMediaType : acceptedMediaTypes) {
for (HttpMessageConverter messageConverter : messageConverters) {
if (messageConverter.canWrite(returnValueType, acceptedMediaType)) {
messageConverter.write(exception, acceptedMediaType, outputMessage);
return new ModelAndView();
}
}
}
}
if (logger.isWarnEnabled()) {
logger.warn(
"Could not find HttpMessageConverter that supports return type ["
+ returnValueType
+ "] and "
+ acceptedMediaTypes);
}
return null;
}
@Override
protected String readInternal(Class<? extends String> clazz, HttpInputMessage inputMessage)
throws IOException, HttpMessageNotReadableException {
MediaType contentType = inputMessage.getHeaders().getContentType();
Charset charset = contentType.getCharSet() != null ? contentType.getCharSet() : DEFAULT_CHARSET;
return FileCopyUtils.copyToString(new InputStreamReader(inputMessage.getBody(), charset));
}
@Override
public BufferedImage read(Class<? extends BufferedImage> clazz, HttpInputMessage inputMessage)
throws IOException, HttpMessageNotReadableException {
ImageInputStream imageInputStream = null;
ImageReader imageReader = null;
try {
imageInputStream = createImageInputStream(inputMessage.getBody());
MediaType contentType = inputMessage.getHeaders().getContentType();
Iterator<ImageReader> imageReaders =
ImageIO.getImageReadersByMIMEType(contentType.toString());
if (imageReaders.hasNext()) {
imageReader = imageReaders.next();
ImageReadParam irp = imageReader.getDefaultReadParam();
process(irp);
imageReader.setInput(imageInputStream, true);
return imageReader.read(0, irp);
} else {
throw new HttpMessageNotReadableException(
"Could not find javax.imageio.ImageReader for Content-Type [" + contentType + "]");
}
} finally {
if (imageReader != null) {
imageReader.dispose();
}
if (imageInputStream != null) {
try {
imageInputStream.close();
} catch (IOException ex) {
// ignore
}
}
}
}
private HttpEntity<?> resolveHttpEntityRequest(
MethodParameter methodParam, NativeWebRequest webRequest) throws Exception {
HttpInputMessage inputMessage = createHttpInputMessage(webRequest);
Class<?> paramType = getHttpEntityType(methodParam);
Object body = readWithMessageConverters(methodParam, inputMessage, paramType);
return new HttpEntity<Object>(body, inputMessage.getHeaders());
}
public Object resolveArgument(
MethodParameter parameter,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest,
WebDataBinderFactory binderFactory)
throws IOException, HttpMediaTypeNotSupportedException {
HttpInputMessage inputMessage = createInputMessage(webRequest);
Class<?> paramType = getHttpEntityType(parameter);
Object body = readWithMessageConverters(webRequest, parameter, paramType);
return new HttpEntity<Object>(body, inputMessage.getHeaders());
}
@Override
public Object read(Type type, Class<?> contextClass, HttpInputMessage inputMessage)
throws IOException, HttpMessageNotReadableException {
try {
TumblrResponse tumblrResponse =
objectMapper.readValue(inputMessage.getBody(), TumblrResponse.class);
checkResponse(tumblrResponse);
Object result;
if (TumblrResponse.class.equals(type)) {
// don't parse the response json, callee is going to process is manually
result = tumblrResponse;
} else {
// parse the response json into an instance of the given class
JavaType javaType = getJavaType(type, contextClass);
String response = tumblrResponse.getResponseJson();
result = objectMapper.readValue(response, javaType);
}
return result;
} catch (JsonParseException ex) {
throw new HttpMessageNotReadableException("Could not read JSON: " + ex.getMessage(), ex);
} catch (EOFException ex) {
throw new HttpMessageNotReadableException("Could not read JSON: " + ex.getMessage(), ex);
} catch (Exception e) {
e.printStackTrace();
throw new IOException(e);
}
}
private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage) {
try {
if (inputMessage instanceof MappingJacksonInputMessage) {
Class<?> deserializationView =
((MappingJacksonInputMessage) inputMessage).getDeserializationView();
if (deserializationView != null) {
return this.objectMapper
.readerWithView(deserializationView)
.forType(javaType)
.readValue(inputMessage.getBody());
}
}
return this.objectMapper.readValue(inputMessage.getBody(), javaType);
} catch (IOException ex) {
throw new HttpMessageNotReadableException("Could not read document: " + ex.getMessage(), ex);
}
}
@Override
protected OAuth2AccessToken readInternal(
Class<? extends OAuth2AccessToken> clazz, HttpInputMessage response)
throws IOException, HttpMessageNotReadableException {
MediaType contentType = response.getHeaders().getContentType();
if (contentType != null && JSON_MEDIA_TYPE.includes(contentType)) {
try {
return getSerializationService().deserializeJsonAccessToken(response.getBody());
} catch (SerializationException e) {
throw new OAuth2Exception(
"Error getting the access token, and unable to read the details of the error in the JSON response.",
e);
}
} else {
// the spec currently says json is required, but facebook, for example, still returns
// form-encoded.
MultiValueMap<String, String> map = FORM_MESSAGE_CONVERTER.read(null, response);
return getSerializationService().deserializeAccessToken(map.toSingleValueMap());
}
}
/**
* Creates the method argument value of the expected parameter type by reading from the given
* HttpInputMessage.
*
* @param <T> the expected type of the argument value to be created
* @param inputMessage the HTTP input message representing the current request
* @param methodParam the method argument
* @param paramType the type of the argument value to be created
* @return the created method argument value
* @throws IOException if the reading from the request fails
* @throws HttpMediaTypeNotSupportedException if no suitable message converter is found
*/
@SuppressWarnings("unchecked")
protected <T> Object readWithMessageConverters(
HttpInputMessage inputMessage, MethodParameter methodParam, Type paramType)
throws IOException, HttpMediaTypeNotSupportedException {
MediaType contentType = inputMessage.getHeaders().getContentType();
if (contentType == null) {
contentType = MediaType.APPLICATION_OCTET_STREAM;
}
Class<T> paramClass = (paramType instanceof Class) ? (Class) paramType : null;
for (HttpMessageConverter<?> messageConverter : this.messageConverters) {
if (messageConverter instanceof GenericHttpMessageConverter) {
GenericHttpMessageConverter genericMessageConverter =
(GenericHttpMessageConverter) messageConverter;
if (genericMessageConverter.canRead(paramType, contentType)) {
if (logger.isDebugEnabled()) {
logger.debug(
"Reading ["
+ paramType
+ "] as \""
+ contentType
+ "\" using ["
+ messageConverter
+ "]");
}
return (T) genericMessageConverter.read(paramType, inputMessage);
}
}
if (paramClass != null) {
if (messageConverter.canRead(paramClass, contentType)) {
if (logger.isDebugEnabled()) {
logger.debug(
"Reading ["
+ paramClass.getName()
+ "] as \""
+ contentType
+ "\" using ["
+ messageConverter
+ "]");
}
return ((HttpMessageConverter<T>) messageConverter).read(paramClass, inputMessage);
}
}
}
throw new HttpMediaTypeNotSupportedException(contentType, allSupportedMediaTypes);
}
private Object success(Class<?> clazz, HttpInputMessage inputMessage)
throws JsonParseException, IOException {
// Note, parsing code used from ektorp project
JsonParser jp = objectMapper.getJsonFactory().createJsonParser(inputMessage.getBody());
if (jp.nextToken() != JsonToken.START_OBJECT) {
throw new RuntimeException("Expected data to start with an Object");
}
Map<String, Integer> fields = readHeaderFields(jp);
List result;
if (fields.containsKey(TOTAL_ROWS_FIELD_NAME)) {
int totalRows = fields.get(TOTAL_ROWS_FIELD_NAME);
if (totalRows == 0) {
return Collections.emptyList();
}
result = new ArrayList(totalRows);
} else {
result = new ArrayList();
}
ParseState state = new ParseState();
Object first = parseFirstRow(jp, state, clazz);
if (first == null) {
return Collections.emptyList();
} else {
result.add(first);
}
while (jp.getCurrentToken() != null) {
skipToField(jp, state.docFieldName, state);
if (atEndOfRows(jp)) {
return result;
}
result.add(jp.readValueAs(clazz));
endRow(jp, state);
}
return result;
}
@SuppressWarnings({"unchecked", "rawtypes"})
private Object readWithMessageConverters(
MethodParameter methodParam, HttpInputMessage inputMessage, Class<?> paramType)
throws Exception {
MediaType contentType = inputMessage.getHeaders().getContentType();
if (contentType == null) {
StringBuilder builder =
new StringBuilder(ClassUtils.getShortName(methodParam.getParameterType()));
String paramName = methodParam.getParameterName();
if (paramName != null) {
builder.append(' ');
builder.append(paramName);
}
throw new HttpMediaTypeNotSupportedException(
"Cannot extract parameter (" + builder.toString() + "): no Content-Type found");
}
List<MediaType> allSupportedMediaTypes = new ArrayList<MediaType>();
if (this.messageConverters != null) {
for (HttpMessageConverter<?> messageConverter : this.messageConverters) {
allSupportedMediaTypes.addAll(messageConverter.getSupportedMediaTypes());
if (messageConverter.canRead(paramType, contentType)) {
if (logger.isDebugEnabled()) {
logger.debug(
"Reading ["
+ paramType.getName()
+ "] as \""
+ contentType
+ "\" using ["
+ messageConverter
+ "]");
}
return messageConverter.read((Class) paramType, inputMessage);
}
}
}
throw new HttpMediaTypeNotSupportedException(contentType, allSupportedMediaTypes);
}
