@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);
}
}
}
@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);
}
}
@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 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());
}
}
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;
}
