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];
      }
    }
  }