RenditionMimeType.java

/*
 * Copyright (C) 2011 Laurent Caillette
 *
 * This program 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, 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.novelang.rendering;

import java.util.Arrays;
import java.util.List;

import com.google.common.base.Function;
import com.google.common.collect.Lists;

/**
 * @author Laurent Caillette
*/
public enum RenditionMimeType {
  
  TXT( "text/plain" ),
  NOVELLA( "text/plain" ),
  XML( "text/xml" ),
  FO( "text/xml" ),
  PDF( "application/pdf" ),
  HTML( "text/html" ) ;

  private final String identifier ;

  private static final Function< RenditionMimeType,String > FILE_EXTENSION_EXTRACTOR =
      new Function< RenditionMimeType, String >() {
        @Override
        public String apply( final RenditionMimeType renditionMimeType ) {
          return renditionMimeType.getFileExtension() ;
        }
      }
  ;

  private RenditionMimeType( final String identifier ) {
    this.identifier = identifier ;
  }

  public String getMimeName() {
    return identifier;
  }

  public String getFileExtension() {
    return name().toLowerCase() ;
  }

  public static boolean contains( final String name ) {
    for( final RenditionMimeType renditionMimeType : RenditionMimeType.values() ) {
      if( renditionMimeType.name().equals( name ) ) {
        return true ;
      }
    }
    return false ;
  }

  /**
   * @return A possibly null value.
   */
  public static RenditionMimeType maybeValueOf( final String name ) {
    return contains( name ) ? valueOf( name ) : null ;
  }

  public static Iterable< String > getFileExtensions() {
    final List< RenditionMimeType > elements = Arrays.asList( values() ) ;
    return Lists.transform( elements, FILE_EXTENSION_EXTRACTOR ) ;
  }
}