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General data-binding functionality for Jackson: works on core streaming API

There is a newer version: 2.17.0

package com.fasterxml.jackson.databind.ser.std;

import java.lang.reflect.Type;
import java.io.IOException;

import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;

/**
 * This is a simple dummy serializer that will just output raw values by calling
 * toString() on value to serialize.
 */
@SuppressWarnings("serial")
public class RawSerializer
    extends StdSerializer
{
    /**
     * Constructor takes in expected type of values; but since caller
     * typically can not really provide actual type parameter, we will
     * just take wild card and coerce type.
     */
    public RawSerializer(Class cls) {
        super(cls, false);
    }

    @Override
    public void serialize(T value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
        jgen.writeRawValue(value.toString());
    }

    @Override
    public void serializeWithType(T value, JsonGenerator jgen, SerializerProvider provider,
            TypeSerializer typeSer)
        throws IOException
    {
        typeSer.writeTypePrefixForScalar(value, jgen);
        serialize(value, jgen, provider);
        typeSer.writeTypeSuffixForScalar(value, jgen);
    }
    
    @Override
    public JsonNode getSchema(SerializerProvider provider, Type typeHint)
    {
        // type not really known, but since it is a JSON string:
        return createSchemaNode("string", true);
    }
    
    @Override
    public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException
    {
        // type not really known, but since it is a JSON string:
        visitStringFormat(visitor, typeHint);
    }
}