com.fasterxml.jackson.databind.deser.impl.SetterlessProperty Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jersey-all Show documentation
Show all versions of jersey-all Show documentation
jersey-all is a rebundled verison of Jersey as one OSGi bundle.
The newest version!
package com.fasterxml.jackson.databind.deser.impl;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
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.PropertyName;
import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.util.Annotations;
/**
* This concrete sub-class implements Collection or Map property that is
* indirectly by getting the property value and directly modifying it.
*/
public final class SetterlessProperty
extends SettableBeanProperty
{
private static final long serialVersionUID = 1L;
protected final AnnotatedMethod _annotated;
/**
* Get method for accessing property value used to access property
* (of Collection or Map type) to modify.
*/
protected final Method _getter;
public SetterlessProperty(BeanPropertyDefinition propDef, JavaType type,
TypeDeserializer typeDeser, Annotations contextAnnotations, AnnotatedMethod method) {
super(propDef, type, typeDeser, contextAnnotations);
_annotated = method;
_getter = method.getAnnotated();
}
protected SetterlessProperty(SetterlessProperty src, JsonDeserializer deser) {
super(src, deser);
_annotated = src._annotated;
_getter = src._getter;
}
protected SetterlessProperty(SetterlessProperty src, PropertyName newName) {
super(src, newName);
_annotated = src._annotated;
_getter = src._getter;
}
@Override
public SetterlessProperty withName(PropertyName newName) {
return new SetterlessProperty(this, newName);
}
@Override
public SetterlessProperty withValueDeserializer(JsonDeserializer deser) {
return new SetterlessProperty(this, deser);
}
/*
/**********************************************************
/* BeanProperty impl
/**********************************************************
*/
@Override
public A getAnnotation(Class acls) {
return _annotated.getAnnotation(acls);
}
@Override public AnnotatedMember getMember() { return _annotated; }
/*
/**********************************************************
/* Overridden methods
/**********************************************************
*/
@Override
public final void deserializeAndSet(JsonParser jp, DeserializationContext ctxt,
Object instance)
throws IOException, JsonProcessingException
{
JsonToken t = jp.getCurrentToken();
if (t == JsonToken.VALUE_NULL) {
/* Hmmh. Is this a problem? We won't be setting anything, so it's
* equivalent of empty Collection/Map in this case
*/
return;
}
// For [#501] fix we need to implement this but:
if (_valueTypeDeserializer != null) {
throw new JsonMappingException("Problem deserializing 'setterless' property (\""+getName()+"\"): no way to handle typed deser with setterless yet");
// return _valueDeserializer.deserializeWithType(jp, ctxt, _valueTypeDeserializer);
}
// Ok: then, need to fetch Collection/Map to modify:
Object toModify;
try {
toModify = _getter.invoke(instance);
} catch (Exception e) {
_throwAsIOE(e);
return; // never gets here
}
/* Note: null won't work, since we can't then inject anything
* in. At least that's not good in common case. However,
* theoretically the case where we get JSON null might
* be compatible. If so, implementation could be changed.
*/
if (toModify == null) {
throw new JsonMappingException("Problem deserializing 'setterless' property '"+getName()+"': get method returned null");
}
_valueDeserializer.deserialize(jp, ctxt, toModify);
}
@Override
public Object deserializeSetAndReturn(JsonParser jp,
DeserializationContext ctxt, Object instance) throws IOException, JsonProcessingException
{
deserializeAndSet(jp, ctxt, instance);
return instance;
}
@Override
public final void set(Object instance, Object value) throws IOException {
throw new UnsupportedOperationException("Should never call 'set' on setterless property");
}
@Override
public Object setAndReturn(Object instance, Object value) throws IOException
{
set(instance, value);
return null;
}
}