JsonConverter.java

package org.caudexorigo.json;

import java.io.InputStream;
import java.io.OutputStream;
import java.io.Writer;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.module.afterburner.AfterburnerModule;

public class JsonConverter<T>
{
	private final ObjectMapper mapper;

	private final Class<T> clazz;

	public JsonConverter(Class<T> clazz)
	{
		this(clazz, false);
	}

	public JsonConverter(Class<T> clazz, boolean prettyPrint)
	{
		super();
		this.clazz = clazz;
		this.mapper = new ObjectMapper();
		this.mapper.registerModule(new AfterburnerModule());

		if (prettyPrint)
		{
			mapper.enable(SerializationFeature.INDENT_OUTPUT);
		}
	}

	public JsonConverter(Class<T> clazz, ObjectMapper mapper)
	{
		super();
		this.clazz = clazz;
		this.mapper = mapper;
		this.mapper.registerModule(new AfterburnerModule());
	}

	public void toJson(T object, OutputStream out)
	{
		try
		{
			mapper.writeValue(out, object);
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}

	public void toJson(T object, Writer out)
	{
		try
		{
			mapper.writeValue(out, object);
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}

	public String toJson(T object)
	{
		try
		{
			JsonStringWriter w = new JsonStringWriter();
			toJson(object, w);

			return w.toString();
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}

	public T fromJson(InputStream json)
	{
		try
		{
			T ev = mapper.readValue(json, clazz);
			return ev;
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}

	public T fromJson(byte[] json)
	{
		try
		{
			T ev = mapper.readValue(json, clazz);
			return ev;
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}

	public T fromJson(String json_string)
	{
		try
		{
			T object = mapper.readValue(json_string, clazz);
			return object;
		}
		catch (Throwable e)
		{
			throw new RuntimeException(e);
		}
	}
}