/**

  * Distribution License:

  * JSword is free software; you can redistribute it and/or modify it under

  * the terms of the GNU Lesser General Public License, version 2.1 or later

  * as published by the Free Software Foundation. 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 Lesser General Public License for more details.

  *

  * The License is available on the internet at:

  *       http://www.gnu.org/copyleft/lgpl.html

  * or by writing to:

  *      Free Software Foundation, Inc.

  *      59 Temple Place - Suite 330

  *      Boston, MA 02111-1307, USA

  *

  * © CrossWire Bible Society, 2005 - 2016

  *

  */

 package org.crosswire.common.config;

 import java.util.Iterator;

 import java.util.Map;

 import java.util.ResourceBundle;

 import java.util.TreeMap;

 import org.crosswire.jsword.JSOtherMsg;

 import org.jdom2.Element;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 /**

  * A class to convert between strings and objects of a type.

  * 

  * @see gnu.lgpl.License The GNU Lesser General Public License for details.

  * @author Joe Walker

  * @author DM Smith

  */

 public class MappedOptionsChoice extends AbstractReflectedChoice implements MappedChoice<Object, Object> {

     /*

      * (non-Javadoc)

      * 

      * @see org.crosswire.common.config.Choice#init(org.jdom2.Element)

      */

     @Override

     public void init(Element option, ResourceBundle configResources) throws StartupException {

         assert configResources != null;

         super.init(option, configResources);

         Element mapElement = option.getChild("map");

         if (mapElement == null) {

             throw new StartupException(JSOtherMsg.lookupText("Missing {0} element in config.xml", "map"));

         }

         String name = mapElement.getAttributeValue("name");

         Object map = ChoiceFactory.getDataMap().get(name);

         if (map instanceof Map<?, ?>) {

             options = (Map<?, ?>) map;

         } else {

             options = new TreeMap<Object, Object>();

         }

     }

     /*

      * (non-Javadoc)

      * 

      * @see org.crosswire.common.config.MappedChoice#getOptions()

      */

     public Map<Object, Object> getOptions() {

         return new TreeMap<Object, Object>(options);

     }

     /*

      * (non-Javadoc)

      * 

      * @see org.crosswire.common.config.Choice#getConvertionClass()

      */

     public Class<String> getConversionClass() {

         return String.class;

     }

     /*

      * (non-Javadoc)

      * 

      * @see

      * org.crosswire.common.config.AbstractReflectedChoice#convertToString(java

      * .lang.Object)

      */

     @Override

     public String convertToString(Object orig) {

         return orig != null ? orig.toString() : "";

     }

     /*

      * (non-Javadoc)

      * 

      * @see

      * org.crosswire.common.config.AbstractReflectedChoice#convertToObject(java

      * .lang.String)

      */

     @Override

     public Object convertToObject(String orig) {

         Iterator<?> iter = options.entrySet().iterator();

         Map.Entry<?, ?> mapEntry = null;

         while (iter.hasNext()) {

             mapEntry = (Map.Entry<?, ?>) iter.next();

             if (mapEntry.getValue().toString().equals(orig) || mapEntry.getKey().toString().equals(orig)) {

                 return mapEntry.getKey().toString();

             }

         }

         log.warn(JSOtherMsg.lookupText("Ignoring invalid option: {0}", orig));

         return "";

     }

     private Map<?, ?> options;

     /**

      * The log stream

      */

     private static Logger log = LoggerFactory.getLogger(MappedOptionsChoice.class);

 }