/**
* Method called by {@link BeanDeserializerFactory} to see if there might be a standard
* deserializer registered for given type.
*/
@SuppressWarnings("unchecked")
protected JsonDeserializer<Object> findStdDeserializer(
DeserializationConfig config, JavaType type) throws JsonMappingException {
Class<?> cls = type.getRawClass();
// note: we do NOT check for custom deserializers here; that's for sub-class to do
JsonDeserializer<Object> deser = _simpleDeserializers.get(new ClassKey(cls));
if (deser != null) {
return deser;
}
// [JACKSON-283]: AtomicReference is a rather special type...
if (AtomicReference.class.isAssignableFrom(cls)) {
// Must find parameterization
TypeFactory tf = config.getTypeFactory();
JavaType[] params = tf.findTypeParameters(type, AtomicReference.class);
JavaType referencedType;
if (params == null || params.length < 1) { // untyped (raw)
referencedType = TypeFactory.unknownType();
} else {
referencedType = params[0];
}
JsonDeserializer<?> d2 = new JdkDeserializers.AtomicReferenceDeserializer(referencedType);
return (JsonDeserializer<Object>) d2;
}
// [JACKSON-386]: External/optional type handlers are handled somewhat differently
JsonDeserializer<?> d = optionalHandlers.findDeserializer(type, config);
if (d != null) {
return (JsonDeserializer<Object>) d;
}
return null;
}
public JsonSerializer<?> findSerializer(
SerializationConfig config, JavaType type, BeanDescription beanDesc) {
final Class<?> rawType = type.getRawClass();
if (_jdk7Helper != null) {
Class<?> path = _jdk7Helper.getClassJavaNioFilePath();
if (path.isAssignableFrom(rawType)) {
return ToStringSerializer.instance;
}
}
if ((CLASS_DOM_NODE != null) && CLASS_DOM_NODE.isAssignableFrom(rawType)) {
return (JsonSerializer<?>) instantiate(SERIALIZER_FOR_DOM_NODE);
}
String className = rawType.getName();
String factoryName;
if (className.startsWith(PACKAGE_PREFIX_JAVAX_XML)
|| hasSuperClassStartingWith(rawType, PACKAGE_PREFIX_JAVAX_XML)) {
factoryName = SERIALIZERS_FOR_JAVAX_XML;
} else {
return null;
}
Object ob = instantiate(factoryName);
if (ob == null) { // could warn, if we had logging system (j.u.l?)
return null;
}
return ((Serializers) ob).findSerializer(config, type, beanDesc);
}
/*
* Enabled aggressive block sorting
*/
@Override
public Collection<NamedType> collectAndResolveSubtypes(AnnotatedMember object, MapperConfig<?> mapperConfig, AnnotationIntrospector annotationIntrospector, JavaType javaType) {
void var4_6;
if (javaType == null) {
Class class_ = object.getRawType();
} else {
Class class_ = javaType.getRawClass();
}
HashMap<NamedType, NamedType> hashMap = new HashMap<NamedType, NamedType>();
if (this._registeredSubtypes != null) {
for (NamedType namedType : this._registeredSubtypes) {
if (!var4_6.isAssignableFrom(namedType.getType())) continue;
this._collectAndResolve(AnnotatedClass.constructWithoutSuperTypes(namedType.getType(), annotationIntrospector, mapperConfig), namedType, mapperConfig, annotationIntrospector, hashMap);
}
}
if ((object = annotationIntrospector.findSubtypes((Annotated)object)) != null) {
object = object.iterator();
while (object.hasNext()) {
NamedType namedType = (NamedType)object.next();
this._collectAndResolve(AnnotatedClass.constructWithoutSuperTypes(namedType.getType(), annotationIntrospector, mapperConfig), namedType, mapperConfig, annotationIntrospector, hashMap);
}
}
object = new NamedType(var4_6, null);
this._collectAndResolve(AnnotatedClass.constructWithoutSuperTypes(var4_6, annotationIntrospector, mapperConfig), (NamedType)object, mapperConfig, annotationIntrospector, hashMap);
return new ArrayList<NamedType>(hashMap.values());
}
@SuppressWarnings("unchecked")
public static JsonSerializer<Object> getStdKeySerializer(JavaType keyType) {
if (keyType == null) {
return DEFAULT_KEY_SERIALIZER;
}
Class<?> cls = keyType.getRawClass();
if (cls == String.class) {
return DEFAULT_STRING_SERIALIZER;
}
if (cls == Object.class || cls.isPrimitive() || Number.class.isAssignableFrom(cls)) {
return DEFAULT_KEY_SERIALIZER;
}
if (Date.class.isAssignableFrom(cls)) {
return (JsonSerializer<Object>) DateKeySerializer.instance;
}
if (Calendar.class.isAssignableFrom(cls)) {
return (JsonSerializer<Object>) CalendarKeySerializer.instance;
}
/* 14-Mar-2014, tatu: Should support @JsonValue, as per #47; but that
* requires extensive introspection, and passing in more information
* to this method.
*/
// If no match, just use default one:
return DEFAULT_KEY_SERIALIZER;
}
public JsonDeserializer<?> findDeserializer(
JavaType type, DeserializationConfig config, BeanDescription beanDesc)
throws JsonMappingException {
final Class<?> rawType = type.getRawClass();
if (_jdk7Helper != null) {
JsonDeserializer<?> deser = _jdk7Helper.getDeserializerForJavaNioFilePath(rawType);
if (deser != null) {
return deser;
}
}
if ((CLASS_DOM_NODE != null) && CLASS_DOM_NODE.isAssignableFrom(rawType)) {
return (JsonDeserializer<?>) instantiate(DESERIALIZER_FOR_DOM_NODE);
}
if ((CLASS_DOM_DOCUMENT != null) && CLASS_DOM_DOCUMENT.isAssignableFrom(rawType)) {
return (JsonDeserializer<?>) instantiate(DESERIALIZER_FOR_DOM_DOCUMENT);
}
String className = rawType.getName();
String factoryName;
if (className.startsWith(PACKAGE_PREFIX_JAVAX_XML)
|| hasSuperClassStartingWith(rawType, PACKAGE_PREFIX_JAVAX_XML)) {
factoryName = DESERIALIZERS_FOR_JAVAX_XML;
} else {
return null;
}
Object ob = instantiate(factoryName);
if (ob == null) { // could warn, if we had logging system (j.u.l?)
return null;
}
return ((Deserializers) ob).findBeanDeserializer(type, config, beanDesc);
}
protected BeanPropertyWriter _constructVirtualProperty(
JsonAppend.Prop prop, MapperConfig<?> config, AnnotatedClass ac) {
PropertyMetadata metadata =
prop.required() ? PropertyMetadata.STD_REQUIRED : PropertyMetadata.STD_OPTIONAL;
PropertyName propName = _propertyName(prop.name(), prop.namespace());
JavaType type = config.constructType(prop.type());
// now, then, we need a placeholder for member (no real Field/Method):
AnnotatedMember member =
new VirtualAnnotatedMember(
ac, ac.getRawType(), propName.getSimpleName(), type.getRawClass());
// and with that and property definition
SimpleBeanPropertyDefinition propDef =
SimpleBeanPropertyDefinition.construct(config, member, propName, metadata, prop.include());
Class<?> implClass = prop.value();
HandlerInstantiator hi = config.getHandlerInstantiator();
VirtualBeanPropertyWriter bpw =
(hi == null) ? null : hi.virtualPropertyWriterInstance(config, implClass);
if (bpw == null) {
bpw =
(VirtualBeanPropertyWriter)
ClassUtil.createInstance(implClass, config.canOverrideAccessModifiers());
}
// one more thing: give it necessary contextual information
return bpw.withConfig(config, ac, propDef, type);
}
public ValueInstantiator constructValueInstantiator(DeserializationConfig config) {
JavaType delegateType;
boolean maybeVanilla = !_hasNonDefaultCreator;
if (maybeVanilla || (_creators[C_DELEGATE] == null)) {
delegateType = null;
} else {
// need to find type...
int ix = 0;
if (_delegateArgs != null) {
for (int i = 0, len = _delegateArgs.length; i < len; ++i) {
if (_delegateArgs[i] == null) { // marker for delegate itself
ix = i;
break;
}
}
}
delegateType = _creators[C_DELEGATE].getParameterType(ix);
}
final JavaType type = _beanDesc.getType();
// Any non-standard creator will prevent; with one exception: int-valued constructor
// that standard containers have can be ignored
maybeVanilla &= !_hasNonDefaultCreator;
if (maybeVanilla) {
/* 10-May-2014, tatu: If we have nothing special, and we are dealing with one
* of "well-known" types, can create a non-reflection-based instantiator.
*/
final Class<?> rawType = type.getRawClass();
if (rawType == Collection.class || rawType == List.class || rawType == ArrayList.class) {
return new Vanilla(Vanilla.TYPE_COLLECTION);
}
if (rawType == Map.class || rawType == LinkedHashMap.class) {
return new Vanilla(Vanilla.TYPE_MAP);
}
if (rawType == HashMap.class) {
return new Vanilla(Vanilla.TYPE_HASH_MAP);
}
}
StdValueInstantiator inst = new StdValueInstantiator(config, type);
inst.configureFromObjectSettings(
_creators[C_DEFAULT],
_creators[C_DELEGATE],
delegateType,
_delegateArgs,
_creators[C_PROPS],
_propertyBasedArgs);
inst.configureFromStringCreator(_creators[C_STRING]);
inst.configureFromIntCreator(_creators[C_INT]);
inst.configureFromLongCreator(_creators[C_LONG]);
inst.configureFromDoubleCreator(_creators[C_DOUBLE]);
inst.configureFromBooleanCreator(_creators[C_BOOLEAN]);
inst.configureIncompleteParameter(_incompleteParameter);
return inst;
}
@Override
public JavaType widenContentsBy(Class<?> contentClass) {
// Can do a quick check first:
if (contentClass == _elementType.getRawClass()) {
return this;
}
return new CollectionLikeType(
_class, _elementType.widenBy(contentClass), _valueHandler, _typeHandler);
}
@Override
public KeyDeserializer findKeyDeserializer(
JavaType type, DeserializationConfig config, BeanDescription beanDesc)
throws JsonMappingException {
final Class<?> candidateTT = type.getRawClass();
if (MetaTinyTypes.isTinyType(candidateTT)) {
return new TinyTypesKeyDeserializer(candidateTT);
}
return null;
}
protected JsonDeserializer<Object> _handleUnknownValueDeserializer(JavaType type)
throws JsonMappingException {
/* Let's try to figure out the reason, to give better error
* messages
*/
Class<?> rawClass = type.getRawClass();
if (!ClassUtil.isConcrete(rawClass)) {
throw new JsonMappingException("Can not find a Value deserializer for abstract type " + type);
}
throw new JsonMappingException("Can not find a Value deserializer for type " + type);
}
// [databind#938]
public void testRecursivePair() throws Exception {
JavaType t = MAPPER.constructType(ImmutablePair.class);
assertNotNull(t);
assertEquals(ImmutablePair.class, t.getRawClass());
List<ImmutablePair<String, Double>> list = new ArrayList<ImmutablePair<String, Double>>();
list.add(ImmutablePair.of("Hello World!", 123d));
String json = MAPPER.writeValueAsString(list);
assertNotNull(json);
// can not deserialize with current definition, however
}
protected MinimalClassNameIdResolver(JavaType javatype, TypeFactory typefactory) {
super(javatype, typefactory);
javatype = javatype.getRawClass().getName();
int i = javatype.lastIndexOf('.');
if (i < 0) {
_basePackageName = "";
_basePackagePrefix = ".";
return;
} else {
_basePackagePrefix = javatype.substring(0, i + 1);
_basePackageName = javatype.substring(0, i);
return;
}
}
@Override
public JavaType modifyType(
JavaType type, Type jdkType, TypeBindings bindings, TypeFactory typeFactory) {
final Class<?> raw = type.getRawClass();
if (Seq.class.isAssignableFrom(raw) && CharSeq.class != raw) {
return CollectionLikeType.construct(raw, type.containedTypeOrUnknown(0));
}
if (Set.class.isAssignableFrom(raw)) {
return CollectionLikeType.construct(raw, type.containedTypeOrUnknown(0));
}
if (PriorityQueue.class.isAssignableFrom(raw)) {
return CollectionLikeType.construct(raw, type.containedTypeOrUnknown(0));
}
return type;
}
/**
* Helper method used for figuring out if given raw type is a collection ("indexed") type; in
* which case a wrapper element is typically added.
*/
public static boolean isIndexedType(JavaType type) {
if (type.isContainerType()) {
Class<?> cls = type.getRawClass();
// One special case; byte[] will be serialized as base64-encoded String, not real array, so:
// (actually, ditto for char[]; thought to be a String)
if (cls == byte[].class || cls == char[].class) {
return false;
}
// issue#5: also, should not add wrapping for Maps
if (Map.class.isAssignableFrom(cls)) {
return false;
}
return true;
}
return false;
}
private ObjBase getValue(Object valueId, JavaType type) {
ObjectId id;
try {
id = new ObjectId(valueId);
} catch (IllegalArgumentException e) {
// TODO: collect these and similar warnings and send them to user output also
log.warn("{} is an invalid ObjectId", valueId);
return null;
}
DBObject result = query(id);
if (result == null) {
log.warn("Could not find {} in database", id);
return null;
}
return makeValue(id, result, (Class<? extends ObjBase>) type.getRawClass());
}
/**
* Method that {@link DeserializerCache}s call to create a new deserializer for types other than
* Collections, Maps, arrays and enums.
*/
@Override
public JsonDeserializer<Object> createBeanDeserializer(
DeserializationContext ctxt, JavaType type, BeanDescription beanDesc)
throws JsonMappingException {
final DeserializationConfig config = ctxt.getConfig();
// We may also have custom overrides:
JsonDeserializer<Object> custom = _findCustomBeanDeserializer(type, config, beanDesc);
if (custom != null) {
return custom;
}
/* One more thing to check: do we have an exception type
* (Throwable or its sub-classes)? If so, need slightly
* different handling.
*/
if (type.isThrowable()) {
return buildThrowableDeserializer(ctxt, type, beanDesc);
}
/* Or, for abstract types, may have alternate means for resolution
* (defaulting, materialization)
*/
if (type.isAbstract()) {
// [JACKSON-41] (v1.6): Let's make it possible to materialize abstract types.
JavaType concreteType = materializeAbstractType(config, beanDesc);
if (concreteType != null) {
/* important: introspect actual implementation (abstract class or
* interface doesn't have constructors, for one)
*/
beanDesc = config.introspect(concreteType);
return buildBeanDeserializer(ctxt, concreteType, beanDesc);
}
}
// Otherwise, may want to check handlers for standard types, from superclass:
JsonDeserializer<Object> deser = findStdDeserializer(config, type);
if (deser != null) {
return deser;
}
// Otherwise: could the class be a Bean class? If not, bail out
if (!isPotentialBeanType(type.getRawClass())) {
return null;
}
// Use generic bean introspection to build deserializer
return buildBeanDeserializer(ctxt, type, beanDesc);
}
protected JsonDeserializer<?> _createDeserializer2(
DeserializationContext ctxt,
DeserializerFactory factory,
JavaType type,
BeanDescription beanDesc)
throws JsonMappingException {
final DeserializationConfig config = ctxt.getConfig();
// If not, let's see which factory method to use:
if (type.isEnumType()) {
return factory.createEnumDeserializer(ctxt, type, beanDesc);
}
if (type.isContainerType()) {
if (type.isArrayType()) {
return factory.createArrayDeserializer(ctxt, (ArrayType) type, beanDesc);
}
if (type.isMapLikeType()) {
MapLikeType mlt = (MapLikeType) type;
if (mlt.isTrueMapType()) {
return factory.createMapDeserializer(ctxt, (MapType) mlt, beanDesc);
}
return factory.createMapLikeDeserializer(ctxt, mlt, beanDesc);
}
if (type.isCollectionLikeType()) {
/* 03-Aug-2012, tatu: As per [Issue#40], one exception is if shape
* is to be Shape.OBJECT. Ideally we'd determine it bit later on
* (to allow custom handler checks), but that won't work for other
* reasons. So do it here.
*/
JsonFormat.Value format = beanDesc.findExpectedFormat(null);
if (format == null || format.getShape() != JsonFormat.Shape.OBJECT) {
CollectionLikeType clt = (CollectionLikeType) type;
if (clt.isTrueCollectionType()) {
return factory.createCollectionDeserializer(ctxt, (CollectionType) clt, beanDesc);
}
return factory.createCollectionLikeDeserializer(ctxt, clt, beanDesc);
}
}
}
if (JsonNode.class.isAssignableFrom(type.getRawClass())) {
return factory.createTreeDeserializer(config, type, beanDesc);
}
return factory.createBeanDeserializer(ctxt, type, beanDesc);
}
/**
* 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;
}
protected BeanPropertyWriter _constructVirtualProperty(
JsonAppend.Attr attr, MapperConfig<?> config, AnnotatedClass ac, JavaType type) {
PropertyMetadata metadata =
attr.required() ? PropertyMetadata.STD_REQUIRED : PropertyMetadata.STD_OPTIONAL;
// could add Index, Description in future, if those matter
String attrName = attr.value();
// allow explicit renaming; if none, default to attribute name
PropertyName propName = _propertyName(attr.propName(), attr.propNamespace());
if (!propName.hasSimpleName()) {
propName = PropertyName.construct(attrName);
}
// now, then, we need a placeholder for member (no real Field/Method):
AnnotatedMember member =
new VirtualAnnotatedMember(ac, ac.getRawType(), attrName, type.getRawClass());
// and with that and property definition
SimpleBeanPropertyDefinition propDef =
SimpleBeanPropertyDefinition.construct(config, member, propName, metadata, attr.include());
// can construct the property writer
return AttributePropertyWriter.construct(attrName, propDef, ac.getAnnotations(), type);
}
/**
* The method to be called by {@link ObjectWriter} for serializing given value (assumed to be of
* specified root type, instead of runtime type of value), when it may know specific {@link
* JsonSerializer} to use.
*
* @param rootType Type to use for locating serializer to use, instead of actual runtime type, if
* no serializer is passed
* @param ser Root Serializer to use, if not null
* @since 2.1
*/
public void serializeValue(
JsonGenerator jgen, Object value, JavaType rootType, JsonSerializer<Object> ser)
throws IOException, JsonGenerationException {
final boolean wrap;
if (value == null) {
ser = getDefaultNullValueSerializer();
wrap = false;
} else {
// Let's ensure types are compatible at this point
if (rootType != null) {
if (!rootType.getRawClass().isAssignableFrom(value.getClass())) {
_reportIncompatibleRootType(value, rootType);
}
}
// root value, not reached via property:
if (ser == null) {
ser = findTypedValueSerializer(rootType, true, null);
}
wrap = _config.isEnabled(SerializationFeature.WRAP_ROOT_VALUE);
if (wrap) {
jgen.writeStartObject();
jgen.writeFieldName(_rootNames.findRootName(rootType, _config));
}
}
try {
ser.serialize(value, jgen, this);
if (wrap) {
jgen.writeEndObject();
}
} catch (IOException ioe) { // no wrapping for IO (and derived)
throw ioe;
} catch (Exception e) { // but others do need to be, to get path etc
String msg = e.getMessage();
if (msg == null) {
msg = "[no message for " + e.getClass().getName() + "]";
}
throw new JsonMappingException(msg, e);
}
}
/** @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;
}
@Override
public Object findInjectableValue(
Object valueId, DeserializationContext ctxt, BeanProperty forProperty, Object beanInstance) {
// if a container, get content type
JavaType type = forProperty.getType();
if (type.isCollectionLikeType() | type.isArrayType()) {
type = type.getContentType();
}
// checking annotation catches properties with interface types
if (ObjBase.class.isAssignableFrom(type.getRawClass())
|| forProperty.getMember().getAnnotated().isAnnotationPresent(Reference.class)) {
try {
return super.findInjectableValue(valueId, ctxt, forProperty, beanInstance);
} catch (IllegalArgumentException e) {
Object value = getValue(valueId, type);
return value;
}
} else {
return super.findInjectableValue(valueId, ctxt, forProperty, beanInstance);
}
}
