VRaptor + renderizando JSON igual o GSON

package br.com.mbs.hosting.test.json;

import java.io.Writer;
import java.util.ArrayList;
import java.util.List;

import br.com.mbs.hosting.service.AddressDTO;
import br.com.mbs.hosting.util.JSONResponse;

import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.json.JsonHierarchicalStreamDriver;
import com.thoughtworks.xstream.io.json.JsonWriter;

/**
 * Testing the JSON rendering with GSon and VRaptor.
 * 
 * @author Diego Martins, MBS Tecnologia - <a href="mailto:[email removido]">[email removido]</a>
 * @version 1.0
 * @date 25/05/2010 12:05:37
 */
public class JSONRenderComparision {

    /**
     * @param args
     */
    public static void main( String[] args ) {

        List&lt; AddressDTO &gt; pojosToRender = new ArrayList&lt; AddressDTO &gt;();

        pojosToRender.add( new AddressDTO( &quot;MG&quot;, &quot;Uberlandia&quot;, &quot;Brasil&quot;, 1L, 10L, &quot;Afonso Pena&quot;, &quot;38408-555&quot;, &quot;&quot;, &quot;&quot;, &quot;1000&quot;, null ) );
        pojosToRender.add( new AddressDTO( &quot;MG&quot;, &quot;Uberlandia&quot;, &quot;Centro&quot;, 1L, 10L, &quot;João Pinheiro&quot;, &quot;38409-555&quot;, &quot;&quot;, &quot;&quot;, &quot;2000&quot;, null ) );
        pojosToRender.add( new AddressDTO( &quot;MG&quot;, &quot;Uberaba&quot;, &quot;Centro&quot;, 5L, 85L, &quot;Graham Bell&quot;, &quot;38407-555&quot;, &quot;&quot;, &quot;&quot;, &quot;3000&quot;, null ) );

        // google
        Gson gsonRender = new Gson();
        System.out.println( &quot;Google JSON render: \n&quot; + gsonRender.toJson( pojosToRender ) );

        // vraptor
        XStream vraptorJSONRender = new XStream( new JsonHierarchicalStreamDriver() {

            public HierarchicalStreamWriter createWriter( Writer writer ) {

                return new JsonWriter( writer, JsonWriter.DROP_ROOT_MODE ) {
                    @Override
                    public void addAttribute(String key, String value) {
                        if(!&quot;class&quot;.equals(key)){
                            super.addAttribute(key, value);
                        }
                    }
                };
            }
        } );
        vraptorJSONRender.setMode( XStream.NO_REFERENCES );
        vraptorJSONRender.alias( &quot;root&quot;, AddressDTO.class );
        System.out.println( &quot;\n\nVRaptor JSON render: \n&quot; + vraptorJSONRender.toXML( pojosToRender ) );

        JSONResponse&lt; List&lt; AddressDTO &gt; &gt; testResponse = new JSONResponse&lt; List&lt; AddressDTO &gt; &gt;( &quot;teste1&quot;, pojosToRender );
        vraptorJSONRender = null;
        vraptorJSONRender = new XStream( new JsonHierarchicalStreamDriver() {

            public HierarchicalStreamWriter createWriter( Writer writer ) {

                return new JsonWriter( writer, JsonWriter.DROP_ROOT_MODE ) {
                    @Override
                    public void addAttribute(String key, String value) {
                        if(!&quot;class&quot;.equals(key)){
                            super.addAttribute(key, value);
                        }
                    }
                };
            }
        } );
        //vraptorJSONRender.alias( &quot;root&quot;, List.class );
        System.out.println( &quot;\n\nVRaptor JSONResponse (hosting) render: \n&quot; + vraptorJSONRender.toXML( testResponse ) );

        System.out.println( &quot;\n\nGoogle JSON (JSONResponse) render: \n&quot;
                + gsonRender.toJson( testResponse, new TypeToken&lt; JSONResponse&lt; List&lt; AddressDTO &gt; &gt; &gt;() {
                }.getType() ) );

    }
}

package br.com.mbs.hosting.util;

public class JSONResponse<T> {

	private String message;
	private T data;

	public JSONResponse(String message, T data) {
		this.message = message;
		this.data = data;
	}

	public String getMessage() {
		return message;
	}

	public T getData() {
		return data;
	}

}

package br.com.mbs.hosting.service;

import java.io.Serializable;

/**
 * DTO for the Address entity. Copy from middleware-sin.
 * 
 * @author Diego Martins, MBS Tecnologia - <a href="mailto:[email removido]">[email removido]</a>
 * @version 1.0
 * @date 20/05/2010 15:26:05
 */
public class AddressDTO implements Serializable {

    private static final long serialVersionUID = -1438246671646795240L;

    private Long id;

    private Long idUf;

    private Long idCity;

    private Long idNeighborhood;

    private Long idType;

    private Long idTitle;

    private String uf;

    private String descUf;

    private String city;

    private String neighborhood = "";

    private String type;

    private String title;

    private String address = "";

    private String cep;

    private Long idAddress;

    private String addressComplementType;

    private String addressComplement;

    private String number;

    private String typeDescription;

    private String streetType;

    public AddressDTO() {
    }

    public AddressDTO( String uf, String city, String neighborhood, Long idType, Long idTitle, String address, String cep,
            String addressComplementType, String addressComplement, String number, StreetTypeDTO streetType ) {

        super();

        this.uf = uf;

        this.city = city;

        this.neighborhood = neighborhood;

        this.idType = idType;

        this.idTitle = idTitle;

        this.address = address;

        this.cep = cep;

        this.addressComplementType = addressComplementType;

        this.addressComplement = addressComplement;

        this.number = number;

        this.streetType = streetType;

    }

    // getters and setters.
}