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io.micronaut.jackson.modules.BeanIntrospectionModule Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.micronaut.jackson.modules;
import com.fasterxml.jackson.annotation.JsonAnyGetter;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyDescription;
import com.fasterxml.jackson.annotation.JsonUnwrapped;
import com.fasterxml.jackson.annotation.JsonValue;
import com.fasterxml.jackson.annotation.OptBoolean;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.core.SerializableString;
import com.fasterxml.jackson.core.io.SerializedString;
import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.DeserializationConfig;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyMetadata;
import com.fasterxml.jackson.databind.PropertyName;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonNaming;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.cfg.MapperConfig;
import com.fasterxml.jackson.databind.deser.BeanDeserializerBuilder;
import com.fasterxml.jackson.databind.deser.BeanDeserializerModifier;
import com.fasterxml.jackson.databind.deser.CreatorProperty;
import com.fasterxml.jackson.databind.deser.NullValueProvider;
import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
import com.fasterxml.jackson.databind.deser.ValueInstantiator;
import com.fasterxml.jackson.databind.deser.impl.MethodProperty;
import com.fasterxml.jackson.databind.deser.std.StdValueInstantiator;
import com.fasterxml.jackson.databind.introspect.AccessorNamingStrategy;
import com.fasterxml.jackson.databind.introspect.AnnotatedClass;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.introspect.AnnotationCollector;
import com.fasterxml.jackson.databind.introspect.DefaultAccessorNamingStrategy;
import com.fasterxml.jackson.databind.introspect.TypeResolutionContext;
import com.fasterxml.jackson.databind.introspect.VirtualAnnotatedMember;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.AnyGetterWriter;
import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
import com.fasterxml.jackson.databind.ser.BeanSerializerBuilder;
import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
import com.fasterxml.jackson.databind.ser.impl.PropertySerializerMap;
import com.fasterxml.jackson.databind.ser.std.MapSerializer;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.fasterxml.jackson.databind.util.SimpleBeanPropertyDefinition;
import io.micronaut.context.annotation.Requires;
import io.micronaut.core.annotation.AnnotatedElement;
import io.micronaut.core.annotation.AnnotationMetadata;
import io.micronaut.core.annotation.AnnotationValue;
import io.micronaut.core.annotation.Experimental;
import io.micronaut.core.annotation.Internal;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.annotation.Nullable;
import io.micronaut.core.beans.BeanIntrospection;
import io.micronaut.core.beans.BeanIntrospector;
import io.micronaut.core.beans.BeanProperty;
import io.micronaut.core.beans.UnsafeBeanProperty;
import io.micronaut.core.reflect.exception.InstantiationException;
import io.micronaut.core.type.Argument;
import io.micronaut.core.util.CollectionUtils;
import io.micronaut.core.util.StringUtils;
import io.micronaut.jackson.JacksonConfiguration;
import io.micronaut.jackson.JacksonDeserializationPreInstantiateCallback;
import jakarta.inject.Inject;
import jakarta.inject.Singleton;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
/**
* A Jackson module that adds reflection-free bean serialization and deserialization for Micronaut.
*
* @author graemerocher
* @since 1.1
*/
@Internal
@Experimental
@Singleton
@Requires(property = JacksonConfiguration.PROPERTY_USE_BEAN_INTROSPECTION, notEquals = StringUtils.FALSE)
public class BeanIntrospectionModule extends SimpleModule {
private static final Logger LOG = LoggerFactory.getLogger(BeanIntrospectionModule.class);
/**
* For testing.
*/
boolean ignoreReflectiveProperties = false;
/**
* The pre-instantiate callback.
*/
@Nullable
private final JacksonDeserializationPreInstantiateCallback preInstantiateCallback;
/**
* Default constructor.
*/
public BeanIntrospectionModule() {
this(null);
}
/**
* The constructor.
*
* @param preInstantiateCallback The optional instance {@link JacksonDeserializationPreInstantiateCallback}
*/
@Inject
public BeanIntrospectionModule(@Nullable JacksonDeserializationPreInstantiateCallback preInstantiateCallback) {
this.preInstantiateCallback = preInstantiateCallback;
setDeserializerModifier(new BeanIntrospectionDeserializerModifier());
setSerializerModifier(new BeanIntrospectionSerializerModifier());
}
@Override
public void setupModule(SetupContext context) {
super.setupModule(context);
ObjectCodec owner = context.getOwner();
if (owner instanceof ObjectMapper mapper) {
mapper.setConfig(mapper.getSerializationConfig().with(new BeanIntrospectionAccessorNamingStrategyProvider(mapper.getSerializationConfig().getAccessorNaming())));
mapper.setConfig(mapper.getDeserializationConfig().with(new BeanIntrospectionAccessorNamingStrategyProvider(mapper.getDeserializationConfig().getAccessorNaming())));
}
}
/**
* Find an introspection for the given class.
* @param beanClass The bean class
* @return The introspection
*/
@Nullable
protected BeanIntrospection findIntrospection(Class beanClass) {
return (BeanIntrospection) BeanIntrospector.SHARED.findIntrospection(beanClass).orElse(null);
}
private JavaType newType(Argument argument, TypeFactory typeFactory) {
return JacksonConfiguration.constructType(argument, typeFactory);
}
private PropertyMetadata newPropertyMetadata(Argument argument, AnnotationMetadata annotationMetadata) {
final Boolean required = annotationMetadata.booleanValue(JsonProperty.class, "required").orElse(false);
int index = annotationMetadata.intValue(JsonProperty.class, "index").orElse(-1);
return PropertyMetadata.construct(
required,
annotationMetadata.stringValue(JsonPropertyDescription.class).orElse(null),
index > -1 ? index : null,
annotationMetadata.stringValue(JsonProperty.class, "defaultValue").orElse(null)
);
}
// copied from VirtualBeanPropertyWriter
private static boolean suppressNulls(JsonInclude.Value inclusion) {
if (inclusion == null) {
return false;
}
JsonInclude.Include incl = inclusion.getValueInclusion();
return (incl != JsonInclude.Include.ALWAYS) && (incl != JsonInclude.Include.USE_DEFAULTS);
}
// copied from VirtualBeanPropertyWriter
private static Object suppressableValue(JsonInclude.Value inclusion) {
if (inclusion == null) {
return false; // [sic]
}
JsonInclude.Include incl = inclusion.getValueInclusion();
if ((incl == JsonInclude.Include.ALWAYS)
|| (incl == JsonInclude.Include.NON_NULL)
|| (incl == JsonInclude.Include.USE_DEFAULTS)) {
return null;
}
return BeanPropertyWriter.MARKER_FOR_EMPTY;
}
/**
* Parse a {@link JsonSerialize} or {@link JsonDeserialize} annotation.
*/
private T findSerializerFromAnnotation(BeanProperty beanProperty, Class annotationType) {
AnnotationValue jsonSerializeAnnotation = beanProperty.getAnnotation(annotationType);
if (jsonSerializeAnnotation != null) {
// ideally, we'd use SerializerProvider here, but it's not exposed to the BeanSerializerModifier
Class using = jsonSerializeAnnotation.classValue("using").orElse(null);
if (using != null) {
BeanIntrospection usingIntrospection = findIntrospection(using);
if (usingIntrospection != null) {
return (T) usingIntrospection.instantiate();
} else {
if (LOG.isWarnEnabled()) {
LOG.warn("Cannot construct {}, please add the @Introspected annotation to the class declaration", using.getName());
}
}
}
}
return null;
}
@NonNull
private JsonFormat.Value parseJsonFormat(@NonNull AnnotationValue formatAnnotation) {
return new JsonFormat.Value(
formatAnnotation.stringValue("pattern").orElse(""),
formatAnnotation.enumValue("shape", JsonFormat.Shape.class).orElse(JsonFormat.Shape.ANY),
formatAnnotation.stringValue("locale").orElse(JsonFormat.DEFAULT_LOCALE),
formatAnnotation.stringValue("timezone").orElse(JsonFormat.DEFAULT_TIMEZONE),
JsonFormat.Features.construct(
formatAnnotation.enumValues("with", JsonFormat.Feature.class),
formatAnnotation.enumValues("without", JsonFormat.Feature.class)
),
formatAnnotation.enumValue("lenient", OptBoolean.class).orElse(OptBoolean.DEFAULT).asBoolean()
);
}
@Nullable
private PropertyNamingStrategy findNamingStrategy(MapperConfig mapperConfig, BeanIntrospection introspection) {
AnnotationValue namingAnnotation = introspection.getAnnotation(JsonNaming.class);
if (namingAnnotation != null) {
Optional> clazz = namingAnnotation.classValue();
if (clazz.isPresent()) {
try {
Constructor emptyConstructor = clazz.get().getConstructor();
return (PropertyNamingStrategy) emptyConstructor.newInstance();
} catch (NoSuchMethodException ignored) {
return mapperConfig.getPropertyNamingStrategy();
} catch (ReflectiveOperationException e) {
throw new RuntimeException("Failed to construct configured PropertyNamingStrategy", e);
}
}
}
return mapperConfig.getPropertyNamingStrategy();
}
private String getName(MapperConfig mapperConfig, @Nullable PropertyNamingStrategy namingStrategy, AnnotatedElement property) {
String explicitName = property.getAnnotationMetadata().stringValue(JsonProperty.class).orElse(JsonProperty.USE_DEFAULT_NAME);
if (!explicitName.equals(JsonProperty.USE_DEFAULT_NAME)) {
return explicitName;
}
String implicitName = property.getName();
if (namingStrategy != null) {
return namingStrategy.nameForGetterMethod(mapperConfig, null, implicitName);
} else {
return implicitName;
}
}
private static class IntrospectionVirtualAnnotatedMember extends VirtualAnnotatedMember {
private final AnnotationMetadata annotationMetadata;
public IntrospectionVirtualAnnotatedMember(TypeResolutionContext typeResolutionContext, Class beanClass, String name, JavaType javaType, AnnotationMetadata annotationMetadata) {
super(typeResolutionContext, beanClass, name, javaType);
this.annotationMetadata = annotationMetadata;
}
@Override
public boolean hasOneOf(Class[] annoClasses) {
return Arrays.stream(annoClasses).anyMatch(annotationMetadata::hasAnnotation);
}
}
/**
* Modifies bean serialization.
*/
private class BeanIntrospectionSerializerModifier extends BeanSerializerModifier {
@Override
public BeanSerializerBuilder updateBuilder(SerializationConfig config, BeanDescription beanDesc, BeanSerializerBuilder builder) {
final Class beanClass = beanDesc.getBeanClass();
final BeanIntrospection introspection = findIntrospection(beanClass);
if (introspection == null) {
return super.updateBuilder(config, beanDesc, builder);
} else {
PropertyNamingStrategy namingStrategy = findNamingStrategy(config, introspection);
final BeanSerializerBuilder newBuilder = new BeanSerializerBuilder(beanDesc) {
@Override
public JsonSerializer build() {
setConfig(config);
try {
return super.build();
} catch (RuntimeException e) {
if (LOG.isErrorEnabled()) {
LOG.error("Error building bean serializer for type [{}]: {}", beanClass, e.getMessage(), e);
}
throw e;
}
}
};
newBuilder.setAnyGetter(builder.getAnyGetter());
final List properties = builder.getProperties();
final Collection> beanProperties = introspection.getBeanProperties();
if (ignoreReflectiveProperties || (CollectionUtils.isEmpty(properties) && CollectionUtils.isNotEmpty(beanProperties))) {
if (LOG.isDebugEnabled()) {
LOG.debug("Bean {} has no properties, while BeanIntrospection does. Recreating from introspection.", beanClass);
}
TypeResolutionContext typeResolutionContext = new TypeResolutionContext.Empty(config.getTypeFactory());
final List newProperties = new ArrayList<>(beanProperties.size());
for (BeanProperty bp : beanProperties) {
if (bp.hasAnnotation(JsonIgnore.class) || bp.hasAnnotation(JsonValue.class)) {
continue;
}
UnsafeBeanProperty beanProperty = (UnsafeBeanProperty) bp;
final String propertyName = getName(config, namingStrategy, beanProperty);
JsonSerializer serializerFromAnnotation = findSerializerFromAnnotation(beanProperty, JsonSerialize.class);
if (bp.hasAnnotation(JsonAnyGetter.class)) {
AnnotatedMember virtualMember = new IntrospectionVirtualAnnotatedMember(
typeResolutionContext,
beanProperty.getDeclaringType(),
propertyName,
newType(beanProperty.asArgument(), config.getTypeFactory()),
beanProperty
) {
@Override
public Object getValue(Object pojo) throws IllegalArgumentException {
return beanProperty.get(pojo);
}
};
JavaType anyType = newType(beanProperty.asArgument(), config.getTypeFactory());
if (serializerFromAnnotation == null) {
serializerFromAnnotation = MapSerializer.construct(/* ignored props*/ (Set) null,
anyType, config.isEnabled(MapperFeature.USE_STATIC_TYPING),
null, null, null, /*filterId*/ null);
}
newBuilder.setAnyGetter(new AnyGetterWriter(
new com.fasterxml.jackson.databind.BeanProperty.Std(
new PropertyName(bp.getName()),
anyType.getContentType(),
null,
virtualMember,
PropertyMetadata.STD_OPTIONAL
),
virtualMember,
serializerFromAnnotation
));
} else {
// normal property
BeanPropertyWriter writer = new BeanIntrospectionPropertyWriter(
new IntrospectionVirtualAnnotatedMember(
typeResolutionContext,
beanProperty.getDeclaringType(),
propertyName,
newType(beanProperty.asArgument(), config.getTypeFactory()),
beanProperty
),
config,
propertyName,
beanProperty,
config.getTypeFactory(),
serializerFromAnnotation
// would be nice to add the TypeSerializer here too, but we don't have access to the
// SerializerFactory for findPropertyTypeSerializer
);
newProperties.add(writer);
}
}
newBuilder.setProperties(newProperties);
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("Updating {} properties with BeanIntrospection data for type: {}", properties.size(), beanClass);
}
final List newProperties = new ArrayList<>(properties);
Map> named = new LinkedHashMap<>();
for (BeanProperty beanProperty : beanProperties) {
if (!beanProperty.isWriteOnly()) {
named.put(getName(config, namingStrategy, beanProperty), beanProperty);
}
}
for (int i = 0; i < properties.size(); i++) {
final BeanPropertyWriter existing = properties.get(i);
final Optional> property = Optional.ofNullable(named.get(existing.getName()));
// ignore properties that are @JsonIgnore, so that we don't replace other properties of the
// same name
if (property.isPresent() &&
!property.get().isAnnotationPresent(JsonIgnore.class) &&
// we can't support XmlBeanPropertyWriter easily https://github.com/micronaut-projects/micronaut-core/issues/5907
!existing.getClass().getName().equals("com.fasterxml.jackson.dataformat.xml.ser.XmlBeanPropertyWriter")) { // NOSONAR
final UnsafeBeanProperty beanProperty = (UnsafeBeanProperty) property.get();
newProperties.set(i, new BeanIntrospectionPropertyWriter(
existing,
beanProperty,
existing.getSerializer(),
config.getTypeFactory(),
existing.getViews()
)
);
} else {
newProperties.set(i, existing);
}
}
newBuilder.setProperties(newProperties);
}
newBuilder.setFilteredProperties(builder.getFilteredProperties());
return newBuilder;
}
}
}
/**
* Modifies bean deserialization.
*/
private class BeanIntrospectionDeserializerModifier extends BeanDeserializerModifier {
@Override
public BeanDeserializerBuilder updateBuilder(
DeserializationConfig config,
BeanDescription beanDesc,
BeanDeserializerBuilder builder) {
if (builder.getValueInstantiator().getDelegateType(config) != null) {
return builder;
}
final Class beanClass = beanDesc.getBeanClass();
final BeanIntrospection introspection = findIntrospection(beanClass);
if (introspection == null) {
return builder;
} else {
PropertyNamingStrategy propertyNamingStrategy = findNamingStrategy(config, introspection);
final Iterator properties = builder.getProperties();
if ((ignoreReflectiveProperties || !properties.hasNext()) && introspection.getPropertyNames().length > 0) {
// mismatch, probably GraalVM reflection not enabled for bean. Try recreate
for (BeanProperty beanProperty : introspection.getBeanProperties()) {
if (!beanProperty.isReadOnly()) {
builder.addOrReplaceProperty(new VirtualSetter(
beanDesc.getClassInfo(),
config.getTypeFactory(),
(UnsafeBeanProperty) beanProperty,
getName(config, propertyNamingStrategy, beanProperty),
findSerializerFromAnnotation(beanProperty, JsonDeserialize.class)),
true);
}
}
} else {
Map> remainingProperties = new LinkedHashMap<>();
for (BeanProperty beanProperty : introspection.getBeanProperties()) {
// ignore properties that are @JsonIgnore, so that we don't replace other properties of the
// same name
if (beanProperty.isAnnotationPresent(JsonIgnore.class)) {
continue;
}
remainingProperties.put(getName(config, propertyNamingStrategy, beanProperty), beanProperty);
}
while (properties.hasNext()) {
final SettableBeanProperty settableBeanProperty = properties.next();
if (settableBeanProperty instanceof MethodProperty methodProperty) {
final UnsafeBeanProperty beanProperty =
(UnsafeBeanProperty) remainingProperties.remove(settableBeanProperty.getName());
if (beanProperty != null && !beanProperty.isReadOnly()) {
SettableBeanProperty newProperty = new BeanIntrospectionSetter(
methodProperty,
beanProperty
);
builder.addOrReplaceProperty(newProperty, true);
}
}
}
// add any remaining properties. This can happen if the supertype has reflection-visible properties
// so `properties` isn't empty, but the subtype doesn't have reflection enabled.
for (Map.Entry> entry : remainingProperties.entrySet()) {
if (!entry.getValue().isReadOnly()) {
SettableBeanProperty existing = builder.findProperty(PropertyName.construct(entry.getKey()));
if (existing == null) {
builder.addOrReplaceProperty(new VirtualSetter(
beanDesc.getClassInfo(),
config.getTypeFactory(),
(UnsafeBeanProperty) entry.getValue(),
entry.getKey(),
findSerializerFromAnnotation(entry.getValue(), JsonDeserialize.class)),
true);
}
}
}
}
final Argument[] constructorArguments = introspection.getConstructorArguments();
final TypeFactory typeFactory = config.getTypeFactory();
ValueInstantiator defaultInstantiator = builder.getValueInstantiator();
builder.setValueInstantiator(new StdValueInstantiator(config, typeFactory.constructType(beanClass)) {
SettableBeanProperty[] props;
@Override
public SettableBeanProperty[] getFromObjectArguments(DeserializationConfig config) {
SettableBeanProperty[] existing = ignoreReflectiveProperties ? null : defaultInstantiator.getFromObjectArguments(config);
if (props == null) {
props = new SettableBeanProperty[constructorArguments.length];
for (int i = 0; i < constructorArguments.length; i++) {
Argument argument = constructorArguments[i];
SettableBeanProperty existingProperty = existing != null && existing.length > i ? existing[i] : null;
final JavaType javaType = existingProperty != null ? existingProperty.getType() : newType(argument, typeFactory);
final AnnotationMetadata annotationMetadata = argument.getAnnotationMetadata();
PropertyMetadata propertyMetadata = newPropertyMetadata(argument, annotationMetadata);
final String simpleName = existingProperty != null ? existingProperty.getName() : getName(config, propertyNamingStrategy, argument);
TypeDeserializer typeDeserializer;
try {
typeDeserializer = config.findTypeDeserializer(javaType);
} catch (JsonMappingException e) {
typeDeserializer = null;
}
PropertyName propertyName = PropertyName.construct(simpleName);
if (typeDeserializer == null) {
SettableBeanProperty settableBeanProperty = builder.findProperty(propertyName);
if (settableBeanProperty != null) {
typeDeserializer = settableBeanProperty.getValueTypeDeserializer();
}
}
props[i] = new CreatorProperty(
propertyName,
javaType,
null,
typeDeserializer,
null,
null,
i,
null,
propertyMetadata
) {
private final UnsafeBeanProperty property = (UnsafeBeanProperty) introspection.getProperty(argument.getName()).orElse(null);
@Override
public A getAnnotation(Class acls) {
return annotationMetadata.synthesize(acls);
}
@Override
public AnnotatedMember getMember() {
return new IntrospectionVirtualAnnotatedMember(beanDesc.getClassInfo(), beanClass, argument.getName(), javaType, annotationMetadata);
}
@Override
public void deserializeAndSet(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
if (property != null) {
property.setUnsafe(instance, deserialize(p, ctxt));
}
}
@Override
public Object deserializeSetAndReturn(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
if (property != null) {
property.setUnsafe(instance, deserialize(p, ctxt));
}
return null;
}
@Override
public void set(Object instance, Object value) {
if (property != null) {
property.setUnsafe(instance, value);
}
}
@Override
public Object setAndReturn(Object instance, Object value) {
if (property != null) {
property.setUnsafe(instance, value);
}
return null;
}
@Override
public JsonFormat.Value findPropertyFormat(MapperConfig config, Class baseType) {
JsonFormat.Value v1 = config.getDefaultPropertyFormat(baseType);
JsonFormat.Value v2 = null;
if (property != null) {
AnnotationValue formatAnnotation = property.getAnnotation(JsonFormat.class);
if (formatAnnotation != null) {
v2 = parseJsonFormat(formatAnnotation);
}
}
if (v1 == null) {
return (v2 == null) ? EMPTY_FORMAT : v2;
}
return (v2 == null) ? v1 : v1.withOverrides(v2);
}
};
}
}
return props;
}
@Override
public boolean canInstantiate() {
return true;
}
@Override
public boolean canCreateUsingDefault() {
return constructorArguments.length == 0;
}
@Override
public boolean canCreateFromObjectWith() {
return constructorArguments.length > 0;
}
@Override
public boolean canCreateUsingArrayDelegate() {
return defaultInstantiator.canCreateUsingArrayDelegate();
}
@Override
public boolean canCreateUsingDelegate() {
return false;
}
@Override
public JavaType getArrayDelegateType(DeserializationConfig config) {
return newType(constructorArguments[0], typeFactory);
}
@Override
public JavaType getDelegateType(DeserializationConfig config) {
return newType(constructorArguments[0], typeFactory);
}
@Override
public boolean canCreateFromString() {
return constructorArguments.length == 1 && constructorArguments[0].equalsType(Argument.STRING);
}
@Override
public boolean canCreateFromInt() {
return constructorArguments.length == 1 && (
constructorArguments[0].equalsType(Argument.INT) ||
constructorArguments[0].equalsType(Argument.LONG));
}
@Override
public boolean canCreateFromLong() {
return constructorArguments.length == 1 && constructorArguments[0].equalsType(Argument.LONG);
}
@Override
public boolean canCreateFromDouble() {
return constructorArguments.length == 1 && constructorArguments[0].equalsType(Argument.DOUBLE);
}
@Override
public boolean canCreateFromBoolean() {
return constructorArguments.length == 1 && constructorArguments[0].equalsType(Argument.BOOLEAN);
}
@Override
public Object createUsingDefault(DeserializationContext ctxt) {
return introspection.instantiate();
}
@Override
public Object createUsingDelegate(DeserializationContext ctxt, Object delegate) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, delegate);
}
return introspection.instantiate(false, new Object[] { delegate });
}
@Override
public Object createFromObjectWith(DeserializationContext ctxt, Object[] args) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, args);
}
return introspection.instantiate(false, args);
}
@Override
public Object createUsingArrayDelegate(DeserializationContext ctxt, Object delegate) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, delegate);
}
return introspection.instantiate(false, new Object[] { delegate }); }
@Override
public Object createFromString(DeserializationContext ctxt, String value) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, value);
}
return introspection.instantiate(false, new Object[]{ value });
}
@Override
public Object createFromInt(DeserializationContext ctxt, int value) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, value);
}
InstantiationException originalException;
try {
return introspection.instantiate(false, new Object[]{value});
} catch (InstantiationException e) {
originalException = e;
}
try {
return introspection.instantiate(false, new Object[]{Long.valueOf(value)});
} catch (InstantiationException e) {
throw originalException;
}
}
@Override
public Object createFromLong(DeserializationContext ctxt, long value) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, value);
}
return introspection.instantiate(false, new Object[]{ value });
}
@Override
public Object createFromDouble(DeserializationContext ctxt, double value) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, value);
}
return introspection.instantiate(false, new Object[]{ value });
}
@Override
public Object createFromBoolean(DeserializationContext ctxt, boolean value) {
if (preInstantiateCallback != null) {
preInstantiateCallback.preInstantiate(introspection, value);
}
return introspection.instantiate(false, new Object[]{ value });
}
});
return builder;
}
}
}
/**
* A virtual property setter.
*/
private class VirtualSetter extends SettableBeanProperty {
final UnsafeBeanProperty beanProperty;
final TypeResolutionContext typeResolutionContext;
VirtualSetter(TypeResolutionContext typeResolutionContext,
TypeFactory typeFactory,
UnsafeBeanProperty beanProperty,
String propertyName,
JsonDeserializer valueDeser) {
super(
new PropertyName(propertyName),
newType(beanProperty.asArgument(), typeFactory),
newPropertyMetadata(beanProperty.asArgument(), beanProperty.getAnnotationMetadata()), valueDeser);
this.beanProperty = beanProperty;
this.typeResolutionContext = typeResolutionContext;
}
VirtualSetter(PropertyName propertyName, VirtualSetter src) {
super(propertyName, src._type, src._metadata, src._valueDeserializer);
this.beanProperty = src.beanProperty;
this.typeResolutionContext = src.typeResolutionContext;
}
VirtualSetter(NullValueProvider nullValueProvider, VirtualSetter src) {
super(src, src._valueDeserializer, nullValueProvider);
this.beanProperty = src.beanProperty;
this.typeResolutionContext = src.typeResolutionContext;
}
VirtualSetter(JsonDeserializer deser, VirtualSetter src) {
super(src._propName, src._type, src._metadata, deser);
this.beanProperty = src.beanProperty;
this.typeResolutionContext = src.typeResolutionContext;
}
@Override
public SettableBeanProperty withValueDeserializer(JsonDeserializer deser) {
return new VirtualSetter((JsonDeserializer) deser, this);
}
@Override
public SettableBeanProperty withName(PropertyName newName) {
return new VirtualSetter(newName, this);
}
@Override
public SettableBeanProperty withNullProvider(NullValueProvider nva) {
return new VirtualSetter(nva, this);
}
@Override
public AnnotatedMember getMember() {
return new IntrospectionVirtualAnnotatedMember(
typeResolutionContext,
beanProperty.getDeclaringType(),
_propName.getSimpleName(),
_type,
beanProperty
);
}
@Override
public A getAnnotation(Class acls) {
return beanProperty.getAnnotationMetadata().synthesize(acls);
}
@Override
public void deserializeAndSet(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
beanProperty.setUnsafe(instance, deserialize(p, ctxt));
}
@Override
public Object deserializeSetAndReturn(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
beanProperty.setUnsafe(instance, deserialize(p, ctxt));
return null;
}
@Override
public void set(Object instance, Object value) {
beanProperty.setUnsafe(instance, value);
}
@Override
public Object setAndReturn(Object instance, Object value) {
beanProperty.setUnsafe(instance, value);
return null;
}
@Override
public JsonFormat.Value findPropertyFormat(MapperConfig config, Class baseType) {
JsonFormat.Value v1 = config.getDefaultPropertyFormat(baseType);
JsonFormat.Value v2 = null;
AnnotationValue formatAnnotation = beanProperty.getAnnotation(JsonFormat.class);
if (formatAnnotation != null) {
v2 = parseJsonFormat(formatAnnotation);
}
if (v1 == null) {
return (v2 == null) ? EMPTY_FORMAT : v2;
}
return (v2 == null) ? v1 : v1.withOverrides(v2);
}
}
/**
* Introspected property writer.
*/
private class BeanIntrospectionPropertyWriter extends BeanPropertyWriter {
protected final Class[] _views;
final UnsafeBeanProperty beanProperty;
final SerializableString fastName;
private final JavaType type;
private final boolean unwrapping;
BeanIntrospectionPropertyWriter(BeanPropertyWriter src,
UnsafeBeanProperty beanProperty,
JsonSerializer ser,
TypeFactory typeFactory,
Class[] views) {
this(src.getSerializedName(), src, beanProperty, ser, typeFactory, views);
}
BeanIntrospectionPropertyWriter(SerializableString name,
BeanPropertyWriter src,
UnsafeBeanProperty beanProperty,
JsonSerializer ser,
TypeFactory typeFactory,
Class[] views) {
super(src);
// either use the passed on serializer or the original one
_serializer = (ser != null) ? ser : src.getSerializer();
this.beanProperty = beanProperty;
fastName = name;
_views = views;
this.type = JacksonConfiguration.constructType(this.beanProperty.asArgument(), typeFactory);
_dynamicSerializers = (ser == null) ? PropertySerializerMap
.emptyForProperties() : null;
this.unwrapping = beanProperty.hasAnnotation(JsonUnwrapped.class);
}
BeanIntrospectionPropertyWriter(
AnnotatedMember virtualMember,
SerializationConfig config,
String name,
UnsafeBeanProperty beanProperty,
TypeFactory typeFactory,
JsonSerializer ser) {
super(
SimpleBeanPropertyDefinition.construct(config, virtualMember),
virtualMember,
AnnotationCollector.emptyAnnotations(),
null, ser, null, null,
suppressNulls(config.getDefaultPropertyInclusion()),
suppressableValue(config.getDefaultPropertyInclusion()),
null
);
this.beanProperty = beanProperty;
fastName = new SerializedString(name);
_views = null;
this.type = JacksonConfiguration.constructType(this.beanProperty.asArgument(), typeFactory);
_dynamicSerializers = PropertySerializerMap
.emptyForProperties();
this.unwrapping = beanProperty.hasAnnotation(JsonUnwrapped.class);
}
@Override
public boolean isUnwrapping() {
return unwrapping;
}
@Override
public String getName() {
return fastName.getValue();
}
@Override
public PropertyName getFullName() {
return new PropertyName(getName());
}
@Override
public void fixAccess(SerializationConfig config) {
// no-op
}
@Override
public JavaType getType() {
return type;
}
private boolean inView(Class activeView) {
if (activeView == null || _views == null) {
return true;
}
final int len = _views.length;
for (int i = 0; i < len; ++i) {
if (_views[i].isAssignableFrom(activeView)) {
return true;
}
}
return false;
}
@Override
public final void serializeAsField(Object bean, JsonGenerator gen, SerializerProvider prov) throws Exception {
if (!inView(prov.getActiveView())) {
serializeAsOmittedField(bean, gen, prov);
return;
}
Object value = beanProperty.get(bean);
// Null (etc.) handling; copied from super-class impl
if (value == null) {
boolean willSuppressNulls = willSuppressNulls();
if (!willSuppressNulls && _nullSerializer != null) {
if (!isUnwrapping()) {
gen.writeFieldName(fastName);
_nullSerializer.serialize(null, gen, prov);
}
} else if (!willSuppressNulls) {
gen.writeFieldName(fastName);
prov.defaultSerializeNull(gen);
}
return;
}
JsonSerializer ser = _serializer;
if (ser == null) {
Class cls = value.getClass();
PropertySerializerMap map = _dynamicSerializers;
ser = map.serializerFor(cls);
if (ser == null) {
ser = _findAndAddDynamic(map, cls, prov);
}
}
if (_suppressableValue != null) {
if (MARKER_FOR_EMPTY == _suppressableValue) {
if (ser.isEmpty(prov, value)) {
return;
}
} else if (_suppressableValue.equals(value)) {
return;
}
}
if (value == bean && _handleSelfReference(bean, gen, prov, ser)) {
// three choices: exception; handled by call; or pass-through
return;
}
if (isUnwrapping()) {
JsonSerializer unwrappingSerializer = ser.unwrappingSerializer(null);
unwrappingSerializer.serialize(value, gen, prov);
} else {
gen.writeFieldName(fastName);
if (_typeSerializer == null) {
ser.serialize(value, gen, prov);
} else {
ser.serializeWithType(value, gen, prov, _typeSerializer);
}
}
}
@Override
public final void serializeAsElement(Object bean, JsonGenerator gen, SerializerProvider prov) throws Exception {
if (!inView(prov.getActiveView())) {
serializeAsOmittedField(bean, gen, prov);
return;
}
Object value = beanProperty.get(bean);
// Null (etc.) handling; copied from super-class impl
if (value == null) {
boolean willSuppressNulls = willSuppressNulls();
if (!willSuppressNulls && _nullSerializer != null) {
_nullSerializer.serialize(null, gen, prov);
} else if (willSuppressNulls) {
serializeAsPlaceholder(bean, gen, prov);
} else {
prov.defaultSerializeNull(gen);
}
return;
}
JsonSerializer ser = _serializer;
if (ser == null) {
Class cls = value.getClass();
PropertySerializerMap map = _dynamicSerializers;
ser = map.serializerFor(cls);
if (ser == null) {
ser = _findAndAddDynamic(map, cls, prov);
}
}
if (_suppressableValue != null) {
if (MARKER_FOR_EMPTY == _suppressableValue) {
if (ser.isEmpty(prov, value)) {
serializeAsPlaceholder(bean, gen, prov);
return;
}
} else if (_suppressableValue.equals(value)) {
serializeAsPlaceholder(bean, gen, prov);
return;
}
}
if (value == bean && _handleSelfReference(bean, gen, prov, ser)) {
// three choices: exception; handled by call; or pass-through
return;
}
if (_typeSerializer == null) {
ser.serialize(value, gen, prov);
} else {
ser.serializeWithType(value, gen, prov, _typeSerializer);
}
}
@Override
public JsonFormat.Value findPropertyFormat(MapperConfig config, Class baseType) {
JsonFormat.Value v1 = config.getDefaultPropertyFormat(baseType);
JsonFormat.Value v2 = null;
AnnotationValue formatAnnotation = beanProperty.getAnnotation(JsonFormat.class);
if (formatAnnotation != null) {
v2 = parseJsonFormat(formatAnnotation);
}
if (v1 == null) {
return (v2 == null) ? EMPTY_FORMAT : v2;
}
return (v2 == null) ? v1 : v1.withOverrides(v2);
}
}
/**
* A bean introspection setter.
*/
private static class BeanIntrospectionSetter extends SettableBeanProperty.Delegating {
final UnsafeBeanProperty beanProperty;
BeanIntrospectionSetter(SettableBeanProperty methodProperty, UnsafeBeanProperty beanProperty) {
super(methodProperty);
this.beanProperty = beanProperty;
}
@Override
protected SettableBeanProperty withDelegate(SettableBeanProperty d) {
return new BeanIntrospectionSetter(d, beanProperty);
}
@Override
public void deserializeAndSet(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
beanProperty.setUnsafe(instance, deserialize(p, ctxt));
}
@Override
public Object deserializeSetAndReturn(JsonParser p, DeserializationContext ctxt, Object instance) throws IOException {
beanProperty.setUnsafe(instance, deserialize(p, ctxt));
return null;
}
@Override
public void set(Object instance, Object value) {
beanProperty.setUnsafe(instance, value);
}
@Override
public Object setAndReturn(Object instance, Object value) {
beanProperty.setUnsafe(instance, value);
return null;
}
}
private class BeanIntrospectionAccessorNamingStrategyProvider extends AccessorNamingStrategy.Provider {
private final AccessorNamingStrategy.Provider delegate;
BeanIntrospectionAccessorNamingStrategyProvider(AccessorNamingStrategy.Provider delegate) {
this.delegate = delegate;
}
@Override
public AccessorNamingStrategy forPOJO(MapperConfig config, AnnotatedClass valueClass) {
return delegate.forPOJO(config, valueClass);
}
@Override
public AccessorNamingStrategy forBuilder(MapperConfig config, AnnotatedClass builderClass, BeanDescription valueTypeDesc) {
return delegate.forBuilder(config, builderClass, valueTypeDesc);
}
@Override
public AccessorNamingStrategy forRecord(MapperConfig config, AnnotatedClass recordClass) {
BeanIntrospection introspection = findIntrospection(recordClass.getRawType());
if (introspection != null) {
return new DefaultAccessorNamingStrategy(config, recordClass, null, "get", "is", null) {
final Set names = introspection.getBeanProperties().stream().map(BeanProperty::getName).collect(Collectors.toSet());
@Override
public String findNameForRegularGetter(AnnotatedMethod am, String name) {
if (names.contains(name)) {
return name;
}
return super.findNameForRegularGetter(am, name);
}
};
} else {
try {
return delegate.forRecord(config, recordClass);
} catch (IllegalArgumentException e) {
if (e.getMessage().startsWith("Failed to access RecordComponents of type")) {
throw new RuntimeException("Failed to construct AccessorNamingStrategy for record. This can happen when running in native-image. Either make this type @Introspected, or mark it for @ReflectiveAccess.", e);
} else {
throw e;
}
}
}
}
}
}
