Java tutorial
/*- * APT - Analysis of Petri Nets and labeled Transition systems * Copyright (C) 2015 vsp * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package uniol.apt.io.renderer.impl; import java.io.BufferedWriter; import java.io.File; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.Writer; import org.apache.commons.io.FileUtils; import org.apache.commons.io.output.StringBuilderWriter; import uniol.apt.io.renderer.Renderer; import uniol.apt.io.renderer.RenderException; /** * Abstract base class for renderers * @param <G> Type of object that the parser produces. * @author vsp */ public abstract class AbstractRenderer<G> implements Renderer<G> { @Override public void renderFile(G obj, String filename) throws RenderException, IOException { renderFile(obj, new File(filename)); } @Override public void renderFile(G obj, File file) throws RenderException, IOException { try (OutputStream os = FileUtils.openOutputStream(file); OutputStreamWriter osw = new OutputStreamWriter(os, "UTF-8"); BufferedWriter bw = new BufferedWriter(osw)) { render(obj, bw); } } @Override public String render(G obj) throws RenderException { try (Writer writer = new StringBuilderWriter()) { render(obj, writer); return writer.toString(); } catch (IOException e) { // A StringWriter shouldn't throw IOExceptions throw new RuntimeException(e); } } } // vim: ft=java:noet:sw=8:sts=8:ts=8:tw=120