package com.fasterxml.jackson.databind.ser.std;
import java.io.IOException;
import java.lang.reflect.Type;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser.NumberType;
import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
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;
/**
* Serializer used for primitive boolean, as well as java.util.Boolean
* wrapper type.
*<p>
* Since this is one of "natural" (aka "native") types, no type information is ever
* included on serialization (unlike for most other scalar types)
*/
@JacksonStdImpl
public final class BooleanSerializer
//In 2.9, removed use of intermediate type `NonTypedScalarSerializerBase`
extends StdScalarSerializer<Object>
implements ContextualSerializer
{
private static final long serialVersionUID = 1L;
/**
* Whether type serialized is primitive (boolean) or wrapper
* (java.lang.Boolean); if true, former, if false, latter.
*/
protected final boolean _forPrimitive;
public BooleanSerializer(boolean forPrimitive) {
super(forPrimitive ? Boolean.TYPE : Boolean.class, false);
_forPrimitive = forPrimitive;
}
@Override
public JsonSerializer<?> createContextual(SerializerProvider serializers,
BeanProperty property) throws JsonMappingException
{
JsonFormat.Value format = findFormatOverrides(serializers,
property, Boolean.class);
if (format != null) {
JsonFormat.Shape shape = format.getShape();
if (shape.isNumeric()) {
return new AsNumber(_forPrimitive);
}
}
return this;
}
@Override
public void serialize(Object value, JsonGenerator g, SerializerProvider provider) throws IOException {
g.writeBoolean(Boolean.TRUE.equals(value));
}
@Override
public final void serializeWithType(Object value, JsonGenerator g, SerializerProvider provider,
TypeSerializer typeSer) throws IOException
{
g.writeBoolean(Boolean.TRUE.equals(value));
}
@Override
public JsonNode getSchema(SerializerProvider provider, Type typeHint) {
return createSchemaNode("boolean", !_forPrimitive);
}
@Override
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException {
visitor.expectBooleanFormat(typeHint);
}
/**
* Alternate implementation that is used when values are to be serialized
* as numbers <code>0</code> (false) or <code>1</code> (true).
*
* @since 2.9
*/
final static class AsNumber
extends StdScalarSerializer<Object>
implements ContextualSerializer
{
private static final long serialVersionUID = 1L;
/**
* Whether type serialized is primitive (boolean) or wrapper
* (java.lang.Boolean); if true, former, if false, latter.
*/
protected final boolean _forPrimitive;
public AsNumber(boolean forPrimitive) {
super(forPrimitive ? Boolean.TYPE : Boolean.class, false);
_forPrimitive = forPrimitive;
}
@Override
public void serialize(Object value, JsonGenerator g, SerializerProvider provider) throws IOException {
g.writeNumber((Boolean.FALSE.equals(value)) ? 0 : 1);
}
@Override
public final void serializeWithType(Object value, JsonGenerator g, SerializerProvider provider,
TypeSerializer typeSer) throws IOException
{
// 27-Mar-2017, tatu: Actually here we CAN NOT serialize as number without type,
// since with natural types that would map to number, not boolean. So choice
// comes to between either add type id, or serialize as boolean. Choose
// latter at this point
g.writeBoolean(Boolean.TRUE.equals(value));
}
@Override
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException {
// 27-Mar-2017, tatu: As usual, bit tricky but... seems like we should call
// visitor for actual representation
visitIntFormat(visitor, typeHint, NumberType.INT);
}
@Override
public JsonSerializer<?> createContextual(SerializerProvider serializers,
BeanProperty property) throws JsonMappingException
{
JsonFormat.Value format = findFormatOverrides(serializers,
property, Boolean.class);
if (format != null) {
JsonFormat.Shape shape = format.getShape();
if (!shape.isNumeric()) {
return new BooleanSerializer(_forPrimitive);
}
}
return this;
}
}
}