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io.honeybadger.com.fasterxml.jackson.databind.ser.std.NumberSerializers Maven / Gradle / Ivy
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.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.ser.ContextualSerializer;
/**
* Container class for serializers used for handling standard JDK-provided
* types.
*/
@SuppressWarnings("serial")
public class NumberSerializers {
protected NumberSerializers() { }
public static void addAll(Map> allDeserializers) {
allDeserializers.put(Integer.class.getName(), new IntegerSerializer(Integer.class));
allDeserializers.put(Integer.TYPE.getName(), new IntegerSerializer(Integer.TYPE));
allDeserializers.put(Long.class.getName(), new LongSerializer(Long.class));
allDeserializers.put(Long.TYPE.getName(), new LongSerializer(Long.TYPE));
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(Double.class.getName(), new DoubleSerializer(Double.class));
allDeserializers.put(Double.TYPE.getName(), new DoubleSerializer(Double.TYPE));
allDeserializers.put(Float.class.getName(), FloatSerializer.instance);
allDeserializers.put(Float.TYPE.getName(), FloatSerializer.instance);
}
/*
/**********************************************************
/* Shared base class
/**********************************************************
*/
protected abstract static class Base extends StdScalarSerializer
implements ContextualSerializer {
protected final JsonParser.NumberType _numberType;
protected final String _schemaType;
protected final boolean _isInt;
protected Base(Class cls, JsonParser.NumberType numberType,
String schemaType) {
super(cls, false);
_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) {
visitIntFormat(visitor, typeHint, _numberType);
} else {
visitFloatFormat(visitor, typeHint, _numberType);
}
}
@Override
public JsonSerializer createContextual(SerializerProvider prov,
BeanProperty property) throws JsonMappingException
{
JsonFormat.Value format = findFormatOverrides(prov, property, handledType());
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 {
final static ShortSerializer instance = new ShortSerializer();
public ShortSerializer() {
super(Short.class, JsonParser.NumberType.INT, "number");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Short) value).shortValue());
}
}
/**
* This is the special serializer for regular {@link java.lang.Integer}s
* (and primitive ints)
*
* Since this is one of "native" types, no type information is ever included
* on serialization (unlike for most scalar types)
*
* NOTE: as of 2.6, generic signature changed to Object, to avoid generation
* of bridge methods.
*/
@JacksonStdImpl
public final static class IntegerSerializer extends Base {
public IntegerSerializer(Class type) {
super(type, JsonParser.NumberType.INT, "integer");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Integer) value).intValue());
}
// IMPORTANT: copied from `NonTypedScalarSerializerBase`
@Override
public void serializeWithType(Object value, JsonGenerator gen,
SerializerProvider provider, TypeSerializer typeSer)
throws IOException {
// no type info, just regular serialization
serialize(value, gen, 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 {
final static IntLikeSerializer instance = new IntLikeSerializer();
public IntLikeSerializer() {
super(Number.class, JsonParser.NumberType.INT, "integer");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Number) value).intValue());
}
}
@JacksonStdImpl
public final static class LongSerializer extends Base {
public LongSerializer(Class cls) {
super(cls, JsonParser.NumberType.LONG, "number");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Long) value).longValue());
}
}
@JacksonStdImpl
public final static class FloatSerializer extends Base {
final static FloatSerializer instance = new FloatSerializer();
public FloatSerializer() {
super(Float.class, JsonParser.NumberType.FLOAT, "number");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Float) value).floatValue());
}
}
/**
* This is the special serializer for regular {@link java.lang.Double}s (and
* primitive doubles)
*
* 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 {
public DoubleSerializer(Class cls) {
super(cls, JsonParser.NumberType.DOUBLE, "number");
}
@Override
public void serialize(Object value, JsonGenerator gen,
SerializerProvider provider) throws IOException {
gen.writeNumber(((Double) value).doubleValue());
}
// IMPORTANT: copied from `NonTypedScalarSerializerBase`
@Override
public void serializeWithType(Object value, JsonGenerator gen,
SerializerProvider provider, TypeSerializer typeSer)
throws IOException {
// no type info, just regular serialization
serialize(value, gen, provider);
}
}
}
