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com.fasterxml.jackson.databind.ser.impl.UnwrappingBeanSerializer Maven / Gradle / Ivy
package com.fasterxml.jackson.databind.ser.impl;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
import com.fasterxml.jackson.databind.ser.std.BeanSerializerBase;
import com.fasterxml.jackson.databind.util.NameTransformer;
import java.io.IOException;
import java.util.Set;
public class UnwrappingBeanSerializer
extends BeanSerializerBase
implements java.io.Serializable
{
private static final long serialVersionUID = 1L;
/**
* Transformer used to add prefix and/or suffix for properties
* of unwrapped POJO.
*/
protected final NameTransformer _nameTransformer;
/*
/**********************************************************
/* Life-cycle: constructors
/**********************************************************
*/
/**
* Constructor used for creating unwrapping instance of a
* standard BeanSerializer
*/
public UnwrappingBeanSerializer(BeanSerializerBase src, NameTransformer transformer) {
super(src, transformer);
_nameTransformer = transformer;
}
public UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
ObjectIdWriter objectIdWriter) {
super(src, objectIdWriter);
_nameTransformer = src._nameTransformer;
}
public UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
ObjectIdWriter objectIdWriter, Object filterId) {
super(src, objectIdWriter, filterId);
_nameTransformer = src._nameTransformer;
}
protected UnwrappingBeanSerializer(UnwrappingBeanSerializer src, Set toIgnore) {
this(src, toIgnore, null);
}
protected UnwrappingBeanSerializer(UnwrappingBeanSerializer src, Set toIgnore, Set toInclude) {
super(src, toIgnore, toInclude);
_nameTransformer = src._nameTransformer;
}
// @since 2.11.1
protected UnwrappingBeanSerializer(UnwrappingBeanSerializer src,
BeanPropertyWriter[] properties, BeanPropertyWriter[] filteredProperties) {
super(src, properties, filteredProperties);
_nameTransformer = src._nameTransformer;
}
/*
/**********************************************************
/* Life-cycle: factory methods, fluent factories
/**********************************************************
*/
@Override
public JsonSerializer unwrappingSerializer(NameTransformer transformer) {
// !!! 23-Jan-2012, tatu: Should we chain transformers?
return new UnwrappingBeanSerializer(this, transformer);
}
@Override
public boolean isUnwrappingSerializer() {
return true; // sure is
}
@Override
public BeanSerializerBase withObjectIdWriter(ObjectIdWriter objectIdWriter) {
return new UnwrappingBeanSerializer(this, objectIdWriter);
}
@Override
public BeanSerializerBase withFilterId(Object filterId) {
return new UnwrappingBeanSerializer(this, _objectIdWriter, filterId);
}
@Override // @since 2.12
protected BeanSerializerBase withByNameInclusion(Set toIgnore, Set toInclude) {
return new UnwrappingBeanSerializer(this, toIgnore, toInclude);
}
@Override // @since 2.11.1
protected BeanSerializerBase withProperties(BeanPropertyWriter[] properties,
BeanPropertyWriter[] filteredProperties) {
return new UnwrappingBeanSerializer(this, properties, filteredProperties);
}
/**
* JSON Array output cannot be done if unwrapping operation is
* requested; so implementation will simply return 'this'.
*/
@Override
protected BeanSerializerBase asArraySerializer() {
return this;
}
/*
/**********************************************************
/* JsonSerializer implementation that differs between impls
/**********************************************************
*/
/**
* Main serialization method that will delegate actual output to
* configured
* {@link BeanPropertyWriter} instances.
*/
@Override
public final void serialize(Object bean, JsonGenerator gen, SerializerProvider provider) throws IOException
{
gen.assignCurrentValue(bean); // [databind#631]
if (_objectIdWriter != null) {
_serializeWithObjectId(bean, gen, provider, false);
return;
}
if (_propertyFilterId != null) {
serializeFieldsFiltered(bean, gen, provider);
} else {
serializeFields(bean, gen, provider);
}
}
@Override
public void serializeWithType(Object bean, JsonGenerator gen, SerializerProvider provider,
TypeSerializer typeSer) throws IOException
{
if (provider.isEnabled(SerializationFeature.FAIL_ON_UNWRAPPED_TYPE_IDENTIFIERS)) {
provider.reportBadDefinition(handledType(),
"Unwrapped property requires use of type information: cannot serialize without disabling `SerializationFeature.FAIL_ON_UNWRAPPED_TYPE_IDENTIFIERS`");
}
gen.assignCurrentValue(bean); // [databind#631]
if (_objectIdWriter != null) {
_serializeWithObjectId(bean, gen, provider, typeSer);
return;
}
if (_propertyFilterId != null) {
serializeFieldsFiltered(bean, gen, provider);
} else {
serializeFields(bean, gen, provider);
}
}
/*
/**********************************************************
/* Standard methods
/**********************************************************
*/
@Override public String toString() {
return "UnwrappingBeanSerializer for "+handledType().getName();
}
}
