package com.facebook.presto.jdbc.internal.jackson.databind.deser.impl;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import com.facebook.presto.jdbc.internal.jackson.core.JsonParser;
import com.facebook.presto.jdbc.internal.jackson.core.JsonProcessingException;
import com.facebook.presto.jdbc.internal.jackson.core.JsonToken;
import com.facebook.presto.jdbc.internal.jackson.databind.DeserializationContext;
import com.facebook.presto.jdbc.internal.jackson.databind.JsonDeserializer;
import com.facebook.presto.jdbc.internal.jackson.databind.deser.SettableBeanProperty;
import com.facebook.presto.jdbc.internal.jackson.databind.introspect.AnnotatedMember;
import com.facebook.presto.jdbc.internal.jackson.databind.util.ClassUtil;
/**
* This sub-class is used to handle special case of value being a
* non-static inner class. If so, we will have to use a special
* alternative for default constructor; but otherwise can delegate
* to regular implementation.
*/
public final class InnerClassProperty
extends SettableBeanProperty
{
private static final long serialVersionUID = 1L;
/**
* Actual property that we use after value construction.
*/
protected final SettableBeanProperty _delegate;
/**
* Single-arg constructor we use for value instantiation.
*/
protected final Constructor<?> _creator;
public InnerClassProperty(SettableBeanProperty delegate,
Constructor<?> ctor)
{
super(delegate);
_delegate = delegate;
_creator = ctor;
}
protected InnerClassProperty(InnerClassProperty src, JsonDeserializer<?> deser)
{
super(src, deser);
_delegate = src._delegate.withValueDeserializer(deser);
_creator = src._creator;
}
protected InnerClassProperty(InnerClassProperty src, String newName) {
super(src, newName);
_delegate = src._delegate.withName(newName);
_creator = src._creator;
}
@Override
public InnerClassProperty withName(String newName) {
return new InnerClassProperty(this, newName);
}
@Override
public InnerClassProperty withValueDeserializer(JsonDeserializer<?> deser) {
return new InnerClassProperty(this, deser);
}
// // // BeanProperty impl
@Override
public <A extends Annotation> A getAnnotation(Class<A> acls) {
return _delegate.getAnnotation(acls);
}
@Override public AnnotatedMember getMember() { return _delegate.getMember(); }
/*
/**********************************************************
/* Deserialization methods
/**********************************************************
*/
@Override
public void deserializeAndSet(JsonParser jp, DeserializationContext ctxt,
Object bean)
throws IOException, JsonProcessingException
{
JsonToken t = jp.getCurrentToken();
Object value;
if (t == JsonToken.VALUE_NULL) {
value = (_nullProvider == null) ? null : _nullProvider.nullValue(ctxt);
} else if (_valueTypeDeserializer != null) {
value = _valueDeserializer.deserializeWithType(jp, ctxt, _valueTypeDeserializer);
} else { // the usual case
try {
value = _creator.newInstance(bean);
} catch (Exception e) {
ClassUtil.unwrapAndThrowAsIAE(e, "Failed to instantiate class "+_creator.getDeclaringClass().getName()+", problem: "+e.getMessage());
value = null;
}
_valueDeserializer.deserialize(jp, ctxt, value);
}
set(bean, value);
}
@Override
public Object deserializeSetAndReturn(JsonParser jp,
DeserializationContext ctxt, Object instance)
throws IOException, JsonProcessingException
{
return setAndReturn(instance, deserialize(jp, ctxt));
}
@Override
public final void set(Object instance, Object value) throws IOException
{
_delegate.set(instance, value);
}
@Override
public Object setAndReturn(Object instance, Object value)
throws IOException
{
return _delegate.setAndReturn(instance, value);
}
}