/******************************************************************************* * JANNLab Neural Network Framework for Java * Copyright (C) 2012-2013 Sebastian Otte * * 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 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 de.jannlab.io; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.util.zip.GZIPInputStream; import java.util.zip.GZIPOutputStream; /** * This class provides methods for persisting data objects. The * objects are stored serialized into GZip archives. * <br></br> * @author Sebastian Otte */ public class Serializer { /** * Write a given object into a file. The instance obj * must implement Serializable. * <br></br> * @param obj The object which is to be stored. * @param filename Destination filename. * @throws IOException */ public static <T> void write(final T obj, final String filename) throws IOException { // File file = new File(filename); // ObjectOutputStream out = new ObjectOutputStream( new GZIPOutputStream(new FileOutputStream(file)) ); out.writeObject(obj); out.flush(); out.close(); } /** * Reads an object from a file. The instance if casted automatically. * <br></br> * @param filename Source filename. * @return Instance of the persisted object. * @throws IOException * @throws ClassNotFoundException */ public static <T> T read(final String filename) throws IOException, ClassNotFoundException { // File file = new File(filename); // ObjectInputStream in = new ObjectInputStream( new GZIPInputStream(new FileInputStream(file)) ); // @SuppressWarnings("unchecked") T obj = (T)in.readObject(); in.close(); return obj; } }