package com.fasterxml.jackson.databind.ser.std;
import java.io.IOException;
import java.lang.reflect.Type;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonIntegerFormatVisitor;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonNumberFormatVisitor;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.ser.ContextualSerializer;
/**
* Container class for serializers used for handling standard JDK-provided types.
*/
public class NumberSerializers
{
protected NumberSerializers() { }
public static void addAll(Map<String, JsonSerializer<?>> allDeserializers)
{
final JsonSerializer<?> intS = new IntegerSerializer();
allDeserializers.put(Integer.class.getName(), intS);
allDeserializers.put(Integer.TYPE.getName(), intS);
allDeserializers.put(Long.class.getName(), LongSerializer.instance);
allDeserializers.put(Long.TYPE.getName(), LongSerializer.instance);
allDeserializers.put(Byte.class.getName(), IntLikeSerializer.instance);
allDeserializers.put(Byte.TYPE.getName(), IntLikeSerializer.instance);
allDeserializers.put(Short.class.getName(), ShortSerializer.instance);
allDeserializers.put(Short.TYPE.getName(), ShortSerializer.instance);
// Numbers, limited length floating point
allDeserializers.put(Float.class.getName(), FloatSerializer.instance);
allDeserializers.put(Float.TYPE.getName(), FloatSerializer.instance);
allDeserializers.put(Double.class.getName(), DoubleSerializer.instance);
allDeserializers.put(Double.TYPE.getName(), DoubleSerializer.instance);
}
/*
/**********************************************************
/* Shared base class
/**********************************************************
*/
protected abstract static class Base<T> extends StdScalarSerializer<T>
implements ContextualSerializer
{
protected final JsonParser.NumberType _numberType;
protected final String _schemaType;
protected final boolean _isInt;
protected Base(Class<T> cls, JsonParser.NumberType numberType, String schemaType) {
super(cls);
_numberType = numberType;
_schemaType = schemaType;
_isInt = (numberType == JsonParser.NumberType.INT)
|| (numberType == JsonParser.NumberType.LONG)
|| (numberType == JsonParser.NumberType.BIG_INTEGER)
;
}
@Override
public JsonNode getSchema(SerializerProvider provider, Type typeHint) {
return createSchemaNode(_schemaType, true);
}
@Override
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException
{
if (_isInt) {
JsonIntegerFormatVisitor v2 = visitor.expectIntegerFormat(typeHint);
if (v2 != null) {
v2.numberType(_numberType);
}
} else {
JsonNumberFormatVisitor v2 = visitor.expectNumberFormat(typeHint);
if (v2 != null) {
v2.numberType(_numberType);
}
}
}
@Override
public JsonSerializer<?> createContextual(SerializerProvider prov,
BeanProperty property) throws JsonMappingException
{
if (property != null) {
JsonFormat.Value format = prov.getAnnotationIntrospector().findFormat(property.getMember());
if (format != null) {
switch (format.getShape()) {
case STRING:
return ToStringSerializer.instance;
default:
}
}
}
return this;
}
}
/*
/**********************************************************
/* Concrete serializers, numerics
/**********************************************************
*/
@JacksonStdImpl
public final static class ShortSerializer extends Base<Short>
{
final static ShortSerializer instance = new ShortSerializer();
public ShortSerializer() { super(Short.class, JsonParser.NumberType.INT, "number"); }
@Override
public void serialize(Short value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.shortValue());
}
}
/**
* This is the special serializer for regular {@link java.lang.Integer}s
* (and primitive ints)
*<p>
* Since this is one of "native" types, no type information is ever
* included on serialization (unlike for most scalar types as of 1.5)
*/
@JacksonStdImpl
public final static class IntegerSerializer extends Base<Integer>
{
public IntegerSerializer() { super(Integer.class, JsonParser.NumberType.INT ,"integer"); }
@Override
public void serialize(Integer value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.intValue());
}
// IMPORTANT: copied from `NonTypedScalarSerializerBase`
@Override
public void serializeWithType(Integer value, JsonGenerator jgen,
SerializerProvider provider, TypeSerializer typeSer) throws IOException {
// no type info, just regular serialization
serialize(value, jgen, provider);
}
}
/**
* Similar to {@link IntegerSerializer}, but will not cast to Integer:
* instead, cast is to {@link java.lang.Number}, and conversion is
* by calling {@link java.lang.Number#intValue}.
*/
@JacksonStdImpl
public final static class IntLikeSerializer extends Base<Number>
{
final static IntLikeSerializer instance = new IntLikeSerializer();
public IntLikeSerializer() {
super(Number.class, JsonParser.NumberType.INT, "integer");
}
@Override
public void serialize(Number value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.intValue());
}
}
@JacksonStdImpl
public final static class LongSerializer extends Base<Long>
{
final static LongSerializer instance = new LongSerializer();
public LongSerializer() { super(Long.class, JsonParser.NumberType.LONG, "number"); }
@Override
public void serialize(Long value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.longValue());
}
}
@JacksonStdImpl
public final static class FloatSerializer extends Base<Float>
{
final static FloatSerializer instance = new FloatSerializer();
public FloatSerializer() { super(Float.class, JsonParser.NumberType.FLOAT, "number"); }
@Override
public void serialize(Float value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.floatValue());
}
}
/**
* This is the special serializer for regular {@link java.lang.Double}s
* (and primitive doubles)
*<p>
* Since this is one of "native" types, no type information is ever
* included on serialization (unlike for most scalar types as of 1.5)
*/
@JacksonStdImpl
public final static class DoubleSerializer extends Base<Double>
{
final static DoubleSerializer instance = new DoubleSerializer();
public DoubleSerializer() { super(Double.class, JsonParser.NumberType.DOUBLE, "number"); }
@Override
public void serialize(Double value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
jgen.writeNumber(value.doubleValue());
}
// IMPORTANT: copied from `NonTypedScalarSerializerBase`
@Override
public void serializeWithType(Double value, JsonGenerator jgen,
SerializerProvider provider, TypeSerializer typeSer) throws IOException {
// no type info, just regular serialization
serialize(value, jgen, provider);
}
}
}