@Override
public EnumMap<?, ?> deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
// Ok: must point to START_OBJECT
if (jp.getCurrentToken() != JsonToken.START_OBJECT) {
return _deserializeFromEmpty(jp, ctxt);
}
EnumMap result = constructMap();
final JsonDeserializer<Object> valueDes = _valueDeserializer;
final TypeDeserializer typeDeser = _valueTypeDeserializer;
while ((jp.nextToken()) == JsonToken.FIELD_NAME) {
String keyName = jp.getCurrentName(); // just for error message
// but we need to let key deserializer handle it separately, nonetheless
Enum<?> key = (Enum<?>) _keyDeserializer.deserializeKey(keyName, ctxt);
if (key == null) {
if (!ctxt.isEnabled(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL)) {
throw ctxt.weirdStringException(
keyName,
_enumClass,
"value not one of declared Enum instance names for " + _mapType.getKeyType());
}
/* 24-Mar-2012, tatu: Null won't work as a key anyway, so let's
* just skip the entry then. But we must skip the value as well, if so.
*/
jp.nextToken();
jp.skipChildren();
continue;
}
// And then the value...
JsonToken t = jp.nextToken();
/* note: MUST check for nulls separately: deserializers will
* not handle them (and maybe fail or return bogus data)
*/
Object value;
try {
if (t == JsonToken.VALUE_NULL) {
value = valueDes.getNullValue(ctxt);
} else if (typeDeser == null) {
value = valueDes.deserialize(jp, ctxt);
} else {
value = valueDes.deserializeWithType(jp, ctxt, typeDeser);
}
} catch (Exception e) {
wrapAndThrow(e, result, keyName);
return null;
}
result.put(key, value);
}
return result;
}
@SuppressWarnings("unchecked")
public Map<Object, Object> _deserializeUsingCreator(JsonParser jp, DeserializationContext ctxt)
throws IOException, JsonProcessingException {
final Creator.PropertyBased creator = _propertyBasedCreator;
PropertyValueBuffer buffer = creator.startBuilding(jp, ctxt);
JsonToken t = jp.getCurrentToken();
if (t == JsonToken.START_OBJECT) {
t = jp.nextToken();
}
final JsonDeserializer<Object> valueDes = _valueDeserializer;
final TypeDeserializer typeDeser = _valueTypeDeserializer;
for (; t == JsonToken.FIELD_NAME; t = jp.nextToken()) {
String propName = jp.getCurrentName();
t = jp.nextToken(); // to get to value
if (_ignorableProperties != null && _ignorableProperties.contains(propName)) {
jp.skipChildren(); // and skip it (in case of array/object)
continue;
}
// creator property?
SettableBeanProperty prop = creator.findCreatorProperty(propName);
if (prop != null) {
// Last property to set?
Object value = prop.deserialize(jp, ctxt);
if (buffer.assignParameter(prop.getCreatorIndex(), value)) {
jp.nextToken();
Map<Object, Object> result = (Map<Object, Object>) creator.build(buffer);
_readAndBind(jp, ctxt, result);
return result;
}
continue;
}
// other property? needs buffering
String fieldName = jp.getCurrentName();
Object key =
(_keyDeserializer == null) ? fieldName : _keyDeserializer.deserializeKey(fieldName, ctxt);
Object value;
if (t == JsonToken.VALUE_NULL) {
value = null;
} else if (typeDeser == null) {
value = valueDes.deserialize(jp, ctxt);
} else {
value = valueDes.deserializeWithType(jp, ctxt, typeDeser);
}
buffer.bufferMapProperty(key, value);
}
// end of JSON object?
// if so, can just construct and leave...
return (Map<Object, Object>) creator.build(buffer);
}
/**
* Helper method for reporting a problem with unhandled unknown exception
*
* @param instanceOrClass Either value being populated (if one has been instantiated), or Class
* that indicates type that would be (or have been) instantiated
* @param deser Deserializer that had the problem, if called by deserializer (or on behalf of one)
*/
public void reportUnknownProperty(
Object instanceOrClass, String fieldName, JsonDeserializer<?> deser)
throws JsonMappingException {
if (!isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)) {
return;
}
// Do we know properties that are expected instead?
Collection<Object> propIds = (deser == null) ? null : deser.getKnownPropertyNames();
throw UnrecognizedPropertyException.from(_parser, instanceOrClass, fieldName, propIds);
}
protected final void _readAndBind(
JsonParser jp, DeserializationContext ctxt, Map<Object, Object> result)
throws IOException, JsonProcessingException {
JsonToken t = jp.getCurrentToken();
if (t == JsonToken.START_OBJECT) {
t = jp.nextToken();
}
final KeyDeserializer keyDes = _keyDeserializer;
final JsonDeserializer<Object> valueDes = _valueDeserializer;
final TypeDeserializer typeDeser = _valueTypeDeserializer;
for (; t == JsonToken.FIELD_NAME; t = jp.nextToken()) {
// Must point to field name
String fieldName = jp.getCurrentName();
Object key = (keyDes == null) ? fieldName : keyDes.deserializeKey(fieldName, ctxt);
// And then the value...
t = jp.nextToken();
if (_ignorableProperties != null && _ignorableProperties.contains(fieldName)) {
jp.skipChildren();
continue;
}
// Note: must handle null explicitly here; value deserializers won't
Object value;
if (t == JsonToken.VALUE_NULL) {
value = null;
} else if (typeDeser == null) {
value = valueDes.deserialize(jp, ctxt);
} else {
value = valueDes.deserializeWithType(jp, ctxt, typeDeser);
}
/* !!! 23-Dec-2008, tatu: should there be an option to verify
* that there are no duplicate field names? (and/or what
* to do, keep-first or keep-last)
*/
result.put(key, value);
}
}
