EDIT

package {{invokerPackage}};

import com.fasterxml.jackson.annotation.*;

import com.fasterxml.jackson.databind.*;

import com.fasterxml.jackson.datatype.joda.*;

import java.io.IOException;

{{>generatedAnnotation}}

public class JSON {

  private ObjectMapper mapper;

  public JSON() {

    mapper = new ObjectMapper();

    mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);

    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

    mapper.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);

    mapper.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);

    mapper.registerModule(new JodaModule());

  }

  /**

   * Serialize the given Java object into JSON string.

   */

  public String serialize(Object obj) throws ApiException {

    try {

      if (obj != null)

        return mapper.writeValueAsString(obj);

      else

        return null;

    } catch (Exception e) {

      throw new ApiException(400, e.getMessage());

    }

  }

  /**

   * Deserialize the given JSON string to Java object.

   *

   * @param body The JSON string

   * @param returnType The type to deserialize inot

   * @return The deserialized Java object

   */

  public <T> T deserialize(String body, TypeRef returnType) throws ApiException {

    JavaType javaType = mapper.constructType(returnType.getType());

    try {

      return mapper.readValue(body, javaType);

    } catch (IOException e) {

      if (returnType.getType().equals(String.class))

        return (T) body;

      else

        throw new ApiException(500, e.getMessage(), null, body);

    }

  }

}