org.ow2.bonita.facade.rest.stringconverter.MapStringConverter Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of bonita-server Show documentation
The newest version!
/**
 * Copyright (C) 2010-2012 BonitaSoft S.A.
 * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation
 * version 2.1 of the License.
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA  02110-1301, USA.
 **/
package org.ow2.bonita.facade.rest.stringconverter;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.ws.rs.ext.Provider;

import org.jboss.resteasy.spi.StringConverter;
import org.ow2.bonita.facade.rest.wrapper.RESTMap;
import org.ow2.bonita.util.xml.XStreamUtil;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.converters.ConversionException;

/**
 * 
 * @author Elias Ricken de Medeiros, Matthieu Chaffotte
 * 
 */
@Provider
public class MapStringConverter implements StringConverter> {

  private static final Logger LOG = Logger.getLogger(MapStringConverter.class.getName());

  @Override
  public Map fromString(String str) {
    try {
      if (!str.startsWith("<")) {
        str = URLDecoder.decode(str, "UTF-8");
      }
    } catch (final UnsupportedEncodingException e) {
      if (LOG.isLoggable(Level.WARNING)) {
        LOG.warning("Cannot decode " + str + " using UTF-8");
      }
    }
    final XStream xstream = XStreamUtil.getDefaultXstream();
    try {
      return (Map) xstream.fromXML(str);
    } catch (final ConversionException ce) {
      if (LOG.isLoggable(Level.WARNING)) {
        LOG.warning("Unable to deserialize map due to " + ce.getMessage() + ". Keep the XML and deserialise it later");
      }
      return new RESTMap(str);
    }
  }

  @Override
  public String toString(final Map value) {
    final XStream xstream = XStreamUtil.getDefaultXstream();
    return xstream.toXML(value);
  }

}