@Override
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property)
throws JsonMappingException {
// May need to resolve types for delegate-based creators:
JsonDeserializer<Object> delegate = null;
if (_valueInstantiator != null) {
AnnotatedWithParams delegateCreator = _valueInstantiator.getDelegateCreator();
if (delegateCreator != null) {
JavaType delegateType = _valueInstantiator.getDelegateType(ctxt.getConfig());
delegate = findDeserializer(ctxt, delegateType, property);
}
}
JsonDeserializer<?> valueDeser = _valueDeserializer;
if (valueDeser == null) {
// #125: May have a content converter
valueDeser = findConvertingContentDeserializer(ctxt, property, valueDeser);
if (valueDeser == null) {
// And we may also need to get deserializer for String
valueDeser =
ctxt.findContextualValueDeserializer(_collectionType.getContentType(), property);
}
} else { // if directly assigned, probably not yet contextual, so:
valueDeser = ctxt.handleSecondaryContextualization(valueDeser, property);
}
if (isDefaultDeserializer(valueDeser)) {
valueDeser = null;
}
return withResolved(delegate, valueDeser);
}
/** Method called to serialize fields, when the value type is not statically known. */
public void serializeFields(Map<?, ?> value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException {
// If value type needs polymorphic type handling, some more work needed:
if (_valueTypeSerializer != null) {
serializeTypedFields(value, jgen, provider);
return;
}
final JsonSerializer<Object> keySerializer = _keySerializer;
final HashSet<String> ignored = _ignoredEntries;
final boolean skipNulls = !provider.isEnabled(SerializationFeature.WRITE_NULL_MAP_VALUES);
PropertySerializerMap serializers = _dynamicValueSerializers;
for (Map.Entry<?, ?> entry : value.entrySet()) {
Object valueElem = entry.getValue();
// First, serialize key
Object keyElem = entry.getKey();
if (keyElem == null) {
provider.findNullKeySerializer(_keyType, _property).serialize(null, jgen, provider);
} else {
// [JACKSON-314] skip entries with null values?
if (skipNulls && valueElem == null) continue;
// One twist: is entry ignorable? If so, skip
if (ignored != null && ignored.contains(keyElem)) continue;
keySerializer.serialize(keyElem, jgen, provider);
}
// And then value
if (valueElem == null) {
provider.defaultSerializeNull(jgen);
} else {
Class<?> cc = valueElem.getClass();
JsonSerializer<Object> serializer = serializers.serializerFor(cc);
if (serializer == null) {
if (_valueType.hasGenericTypes()) {
serializer =
_findAndAddDynamic(
serializers, provider.constructSpecializedType(_valueType, cc), provider);
} else {
serializer = _findAndAddDynamic(serializers, cc, provider);
}
serializers = _dynamicValueSerializers;
}
try {
serializer.serialize(valueElem, jgen, provider);
} catch (Exception e) {
// [JACKSON-55] Need to add reference information
String keyDesc = "" + keyElem;
wrapAndThrow(provider, e, value, keyDesc);
}
}
}
}
public EnumMapDeserializer(
JavaType mapType,
KeyDeserializer keyDeserializer,
JsonDeserializer<?> valueDeser,
TypeDeserializer valueTypeDeser) {
super(mapType);
_mapType = mapType;
_enumClass = mapType.getKeyType().getRawClass();
_keyDeserializer = keyDeserializer;
_valueDeserializer = (JsonDeserializer<Object>) valueDeser;
_valueTypeDeserializer = valueTypeDeser;
}
/** @since 2.8 */
public static MapSerializer construct(
Set<String> ignoredEntries,
JavaType mapType,
boolean staticValueType,
TypeSerializer vts,
JsonSerializer<Object> keySerializer,
JsonSerializer<Object> valueSerializer,
Object filterId) {
JavaType keyType, valueType;
if (mapType == null) {
keyType = valueType = UNSPECIFIED_TYPE;
} else {
keyType = mapType.getKeyType();
valueType = mapType.getContentType();
}
// If value type is final, it's same as forcing static value typing:
if (!staticValueType) {
staticValueType = (valueType != null && valueType.isFinal());
} else {
// also: Object.class can not be handled as static, ever
if (valueType.getRawClass() == Object.class) {
staticValueType = false;
}
}
MapSerializer ser =
new MapSerializer(
ignoredEntries,
keyType,
valueType,
staticValueType,
vts,
keySerializer,
valueSerializer);
if (filterId != null) {
ser = ser.withFilterId(filterId);
}
return ser;
}
private final JsonSerializer<Object> _findSerializer(SerializerProvider provider, Object value)
throws JsonMappingException {
final Class<?> cc = value.getClass();
JsonSerializer<Object> valueSer = _dynamicValueSerializers.serializerFor(cc);
if (valueSer != null) {
return valueSer;
}
if (_valueType.hasGenericTypes()) {
return _findAndAddDynamic(
_dynamicValueSerializers, provider.constructSpecializedType(_valueType, cc), provider);
}
return _findAndAddDynamic(_dynamicValueSerializers, cc, provider);
}
@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;
}
/**
* Method called to finalize setup of this deserializer, when it is known for which property
* deserializer is needed for.
*/
@Override
public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property)
throws JsonMappingException {
// note: instead of finding key deserializer, with enums we actually
// work with regular deserializers (less code duplication; but not
// quite as clean as it ought to be)
KeyDeserializer kd = _keyDeserializer;
if (kd == null) {
kd = ctxt.findKeyDeserializer(_mapType.getKeyType(), property);
}
JsonDeserializer<?> vd = _valueDeserializer;
final JavaType vt = _mapType.getContentType();
if (vd == null) {
vd = ctxt.findContextualValueDeserializer(vt, property);
} else { // if directly assigned, probably not yet contextual, so:
vd = ctxt.handleSecondaryContextualization(vd, property, vt);
}
TypeDeserializer vtd = _valueTypeDeserializer;
if (vtd != null) {
vtd = vtd.forProperty(property);
}
return withResolved(kd, vd, vtd);
}
public static MapSerializer construct(
String[] ignoredList,
JavaType mapType,
boolean staticValueType,
TypeSerializer vts,
JsonSerializer<Object> keySerializer,
JsonSerializer<Object> valueSerializer) {
HashSet<String> ignoredEntries = toSet(ignoredList);
JavaType keyType, valueType;
if (mapType == null) {
keyType = valueType = UNSPECIFIED_TYPE;
} else {
keyType = mapType.getKeyType();
valueType = mapType.getContentType();
}
// If value type is final, it's same as forcing static value typing:
if (!staticValueType) {
staticValueType = (valueType != null && valueType.isFinal());
}
return new MapSerializer(
ignoredEntries, keyType, valueType, staticValueType, vts, keySerializer, valueSerializer);
}
/**
* Helper method called when current token is no START_ARRAY. Will either throw an exception, or
* try to handle value as if member of implicit array, depending on configuration.
*/
private final Collection<String> handleNonArray(
JsonParser jp, DeserializationContext ctxt, Collection<String> result) throws IOException {
// [JACKSON-526]: implicit arrays from single values?
if (!ctxt.isEnabled(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY)) {
throw ctxt.mappingException(_collectionType.getRawClass());
}
// Strings are one of "native" (intrinsic) types, so there's never type deserializer involved
JsonDeserializer<String> valueDes = _valueDeserializer;
JsonToken t = jp.getCurrentToken();
String value;
if (t == JsonToken.VALUE_NULL) {
value = (valueDes == null) ? null : valueDes.getNullValue();
} else {
value = (valueDes == null) ? _parseString(jp, ctxt) : valueDes.deserialize(jp, ctxt);
}
result.add(value);
return result;
}
@Override
public JavaType getContentType() {
return _mapType.getContentType();
}
@Override
public JavaType getContentType() {
return _collectionType.getContentType();
}
@Override
public JsonSerializer<?> createContextual(SerializerProvider provider, BeanProperty property)
throws JsonMappingException {
JsonSerializer<?> ser = null;
JsonSerializer<?> keySer = null;
final AnnotationIntrospector intr = provider.getAnnotationIntrospector();
final AnnotatedMember propertyAcc = (property == null) ? null : property.getMember();
// First: if we have a property, may have property-annotation overrides
if ((propertyAcc != null) && (intr != null)) {
Object serDef = intr.findKeySerializer(propertyAcc);
if (serDef != null) {
keySer = provider.serializerInstance(propertyAcc, serDef);
}
serDef = intr.findContentSerializer(propertyAcc);
if (serDef != null) {
ser = provider.serializerInstance(propertyAcc, serDef);
}
}
if (ser == null) {
ser = _valueSerializer;
}
// [databind#124]: May have a content converter
ser = findContextualConvertingSerializer(provider, property, ser);
if (ser == null) {
// 30-Sep-2012, tatu: One more thing -- if explicit content type is annotated,
// we can consider it a static case as well.
// 20-Aug-2013, tatu: Need to avoid trying to access serializer for java.lang.Object tho
if (_valueTypeIsStatic && !_valueType.isJavaLangObject()) {
ser = provider.findValueSerializer(_valueType, property);
}
}
if (keySer == null) {
keySer = _keySerializer;
}
if (keySer == null) {
keySer = provider.findKeySerializer(_keyType, property);
} else {
keySer = provider.handleSecondaryContextualization(keySer, property);
}
Set<String> ignored = _ignoredEntries;
boolean sortKeys = false;
if ((intr != null) && (propertyAcc != null)) {
JsonIgnoreProperties.Value ignorals = intr.findPropertyIgnorals(propertyAcc);
if (ignorals != null) {
Set<String> newIgnored = ignorals.findIgnoredForSerialization();
if ((newIgnored != null) && !newIgnored.isEmpty()) {
ignored = (ignored == null) ? new HashSet<String>() : new HashSet<String>(ignored);
for (String str : newIgnored) {
ignored.add(str);
}
}
}
Boolean b = intr.findSerializationSortAlphabetically(propertyAcc);
sortKeys = (b != null) && b.booleanValue();
}
JsonFormat.Value format = findFormatOverrides(provider, property, Map.class);
if (format != null) {
Boolean B = format.getFeature(JsonFormat.Feature.WRITE_SORTED_MAP_ENTRIES);
if (B != null) {
sortKeys = B.booleanValue();
}
}
MapSerializer mser = withResolved(property, keySer, ser, ignored, sortKeys);
// [databind#307]: allow filtering
if (property != null) {
AnnotatedMember m = property.getMember();
if (m != null) {
Object filterId = intr.findFilterId(m);
if (filterId != null) {
mser = mser.withFilterId(filterId);
}
}
JsonInclude.Value inclV = property.findPropertyInclusion(provider.getConfig(), null);
if (inclV != null) {
JsonInclude.Include incl = inclV.getContentInclusion();
if (incl != JsonInclude.Include.USE_DEFAULTS) {
Object valueToSuppress;
boolean suppressNulls;
switch (incl) {
case NON_DEFAULT:
valueToSuppress = BeanUtil.getDefaultValue(_valueType);
suppressNulls = true;
if (valueToSuppress != null) {
if (valueToSuppress.getClass().isArray()) {
valueToSuppress = ArrayBuilders.getArrayComparator(valueToSuppress);
}
}
break;
case NON_ABSENT:
suppressNulls = true;
valueToSuppress = _valueType.isReferenceType() ? MARKER_FOR_EMPTY : null;
break;
case NON_EMPTY:
suppressNulls = true;
valueToSuppress = MARKER_FOR_EMPTY;
break;
case CUSTOM:
valueToSuppress = provider.includeFilterInstance(null, inclV.getContentFilter());
if (valueToSuppress == null) { // is this legal?
suppressNulls = true;
} else {
suppressNulls = provider.includeFilterSuppressNulls(valueToSuppress);
}
break;
case NON_NULL:
valueToSuppress = null;
suppressNulls = true;
break;
case ALWAYS: // default
default:
valueToSuppress = null;
// 30-Sep-2016, tatu: Should not need to check global flags here,
// if inclusion forced to be ALWAYS
suppressNulls = false;
break;
}
mser = mser.withContentInclusion(valueToSuppress, suppressNulls);
}
}
}
return mser;
}
