SimpleXMLConverter.java

package retrofit.converter;

import org.simpleframework.xml.Serializer;
import retrofit.mime.TypedByteArray;
import retrofit.mime.TypedInput;
import retrofit.mime.TypedOutput;

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

/**
 * A {@link Converter} which uses SimpleXML for reading and writing entities.
 *
 * @author Fabien Ric (fabien.ric@gmail.com)
 */
public class SimpleXMLConverter implements Converter
{
  private static final String CHARSET   = "UTF-8";
  private static final String MIME_TYPE = "application/xml; charset=" + CHARSET;

  private final Serializer serializer;

  public SimpleXMLConverter(Serializer serializer)
  {
    this.serializer = serializer;
  }

  @Override
  public Object fromBody(TypedInput body, Type type) throws ConversionException
  {
    try
    {
      return serializer.read((Class<?>) type, body.in());
    }
    catch (Exception e)
    {
      throw new ConversionException(e);
    }
  }

  @Override
  public TypedOutput toBody(Object source)
  {
    OutputStreamWriter osw = null;

    try
    {
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      osw = new OutputStreamWriter(bos, CHARSET);
      serializer.write(source, osw);
      osw.flush();
      return new TypedByteArray(MIME_TYPE, bos.toByteArray());
    }
    catch (Exception e)
    {
      throw new AssertionError(e);
    }
    finally
    {
      try
      {
        if (osw != null)
        {
          osw.close();
        }
      }
      catch (IOException e)
      {
        throw new AssertionError(e);
      }
    }
  }
}