/*
 *
 * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
 * one or more contributor license agreements (see COPYRIGHT for details).
 * The CA licenses this file to you under the GNU Affero General Public
 * License version 3, (the "License"); you may not use this file except in
 * compliance with the License. This file is part of kune.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package cc.kune.core.server.mapper;

import java.text.MessageFormat;
import java.util.HashMap;

import org.dozer.CustomConverter;
import org.dozer.MappingException;

import cc.kune.core.shared.domain.GroupListMode;

// TODO: Auto-generated Javadoc
/**
 * The Class GroupListModeConverter.
 * 
 * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
 */
public class GroupListModeConverter implements CustomConverter {

  /** The enum to string. */
  private final HashMap<GroupListMode, String> enumToString;

  /** The string to enum. */
  private final HashMap<String, GroupListMode> stringToEnum;

  /**
   * Instantiates a new group list mode converter.
   */
  public GroupListModeConverter() {
    this.stringToEnum = new HashMap<String, GroupListMode>();
    this.enumToString = new HashMap<GroupListMode, String>();
    add(GroupListMode.NORMAL);
    add(GroupListMode.EVERYONE);
    add(GroupListMode.NOBODY);
  }

  /**
   * Adds the.
   * 
   * @param mode
   *          the mode
   */
  private void add(final GroupListMode mode) {
    enumToString.put(mode, mode.toString());
    stringToEnum.put(mode.toString(), mode);
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.dozer.CustomConverter#convert(java.lang.Object, java.lang.Object,
   * java.lang.Class, java.lang.Class)
   */
  @Override
  @SuppressWarnings("rawtypes")
  public Object convert(final Object destination, final Object source, final Class destinationClass,
      final Class sourceClass) {
    if (source == null) {
      return null;
    } else if (sourceClass.equals(String.class) && destinationClass.equals(GroupListMode.class)) {
      return stringToEnum.get(source);
    } else if (sourceClass.equals(GroupListMode.class) && destinationClass.equals(String.class)) {
      return enumToString.get(source);
    } else {
      final String msg = MessageFormat.format("couldn't map {0} ({1}) to {2} ({3})", source,
          sourceClass, destination, destinationClass);
      throw new MappingException(msg);
    }

  }

}