001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.core.util; 025 026 import java.io.ByteArrayInputStream; 027 import java.io.ByteArrayOutputStream; 028 import java.io.IOException; 029 import java.io.InputStream; 030 import java.io.ObjectInputStream; 031 import java.io.ObjectOutputStream; 032 import java.io.OutputStream; 033 import java.io.Serializable; 034 035 public abstract class SerializationUtil { 036 037 public static void serialize(Serializable obj, OutputStream outputStream) throws IOException { 038 ObjectOutputStream out = null; 039 try { 040 out = new ObjectOutputStream(outputStream); 041 out.writeObject(obj); 042 } catch (IOException ex) { 043 throw ex; 044 } finally { 045 try { 046 if (out != null) { 047 out.close(); 048 } 049 } catch (IOException ex) { 050 // ignore close exception 051 } 052 } 053 } 054 055 public static Object deserialize(InputStream inputStream) throws ClassNotFoundException, 056 IOException { 057 ObjectInputStream in = null; 058 try { 059 // stream closed in the finally 060 in = new ObjectInputStream(inputStream); 061 return in.readObject(); 062 } catch (ClassNotFoundException ex) { 063 throw ex; 064 } catch (IOException ex) { 065 throw ex; 066 } finally { 067 try { 068 if (in != null) { 069 in.close(); 070 } 071 } catch (IOException ex) { 072 // ignore close exception 073 } 074 } 075 } 076 077 public static byte[] serialize(Serializable o) throws IOException { 078 ByteArrayOutputStream bos = new ByteArrayOutputStream(); 079 serialize(o, bos); 080 return bos.toByteArray(); 081 } 082 083 public static Object deserialize(byte[] data) throws ClassNotFoundException, IOException { 084 ByteArrayInputStream bis = new ByteArrayInputStream(data); 085 Object o = deserialize(bis); 086 return o; 087 } 088 089 public static long sizeOf(Serializable o) throws IOException { 090 return serialize(o).length; 091 } 092 093 }