Java tutorial
/* * cilla - Blog Management System * * Copyright (C) 2012 Richard "Shred" Krber * http://cilla.shredzone.org * * 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 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 org.shredzone.cilla.web.converter; import javax.annotation.Resource; import org.shredzone.cilla.core.model.TextSection; import org.shredzone.cilla.core.repository.SectionDao; import org.springframework.core.convert.converter.Converter; /** * Converts a String to a {@link TextSection}. * * @author Richard "Shred" Krber */ public class StringToTextSection implements Converter<String, TextSection> { private @Resource SectionDao sectionDao; @Override public TextSection convert(String string) { try { return (TextSection) sectionDao.fetch(Long.parseLong(string)); } catch (NumberFormatException | ClassCastException ex) { return null; } } }