package org.paneris.bibliomania;

 import java.util.Enumeration;

 import org.melati.poem.AccessToken;

 import org.melati.poem.Database;

 import org.melati.poem.DefinitionSource;

 import org.melati.poem.PoemException;

 import org.melati.poem.PoemTask;

 import org.melati.poem.PoemThread;

 import org.paneris.bibliomania.generated.BookFormatTableBase;

 import org.apache.oro.text.regex.Perl5Matcher;

 import org.apache.oro.text.regex.Perl5Pattern;

 public class BookFormatTable<T extends BookFormat> extends BookFormatTableBase<BookFormat> {

   public BookFormatTable(

       Database database, String name,

       DefinitionSource definitionSource) throws PoemException {

     super(database, name, definitionSource);

   }

   public BookFormat ensure(String displayname, String descriptionregexp) {

     BookFormat bf = (BookFormat)newPersistent();

     bf.setDisplayname(displayname);

     bf.setDescriptionregexp(descriptionregexp);

     create(bf);

     return bf;

   }

   public void postInitialise() {

     super.postInitialise();

     if (count(null) == 0) {

       ensure("Paperback", "paperback");

       ensure("Hardback", "hardback");

       ensure("DVD", "dvd|video\\s+dis[ck]");

       ensure("CD", "\\bcd\\b|compact\\s+dis[ck]");

       ensure("Video cassette", "video");

       ensure("Audio cassette", "audio|cassette");

     }

   }

   private BookFormat _formatOfDescription(String description) {

     for (Enumeration f = selection(); f.hasMoreElements();) {

       BookFormat format = (BookFormat)f.nextElement();

       Perl5Pattern re = format.getDescriptionPerl5Regexp();

       Perl5Matcher matcher = new Perl5Matcher();

       if (re != null && matcher.contains(description, re))

         return format;

     }

     return null;

   }

   // FIXME megahack, because this is called from a non-POEM search

   // thread!!

   public BookFormat formatOfDescription(final String description) {

     if (PoemThread.inSession())

       return _formatOfDescription(description);

     else {

       final BookFormat[] it = new BookFormat[1];

       getDatabase().inSession(

           AccessToken.root,

           new PoemTask() {

             public void run() {

               it[0] = _formatOfDescription(description);

             }

           });

       return it[0];

     }

   }

 }