com.github.TKnudsen.ComplexDataObject.model.io.json.ObjectMapperFactory Maven / Gradle / Ivy

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A library that models real-world objects in Java, referred to as ComplexDataObjects. Other features: IO and preprocessing of ComplexDataObjects.

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package com.github.TKnudsen.ComplexDataObject.model.io.json;

import java.util.Map;

import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Value;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectMapper.DefaultTyping;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;

public class ObjectMapperFactory {

	private static ObjectMapper complexDataObjectObjectMapper;

	public static ObjectMapper getComplexDataObjectObjectMapper() {
		if (complexDataObjectObjectMapper == null)
			initComplexDataObjectObjectMapper();

		return complexDataObjectObjectMapper;
	}

	private static void initComplexDataObjectObjectMapper() {
		complexDataObjectObjectMapper = new ObjectMapper();
		
		// complexDataObjectObjectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		complexDataObjectObjectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance,
				DefaultTyping.NON_FINAL);
		
//		complexDataObjectObjectMapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, true);
		complexDataObjectObjectMapper.enable(SerializationFeature.INDENT_OUTPUT);
		complexDataObjectObjectMapper.configOverride(Map.class)
				.setInclude(Value.construct(JsonInclude.Include.NON_NULL, JsonInclude.Include.NON_NULL));
		
		complexDataObjectObjectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
		complexDataObjectObjectMapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
		complexDataObjectObjectMapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
	}

	public static ObjectMapper createComplexDataObjectObjectMapper(boolean ignoreUnknownProperties) {
		ObjectMapper objectMapper = new ObjectMapper();
//		objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, DefaultTyping.NON_FINAL);
		objectMapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, true);
		objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
		objectMapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
		objectMapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);

		if (ignoreUnknownProperties)
			objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

		return objectMapper;
	}
}