01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.mx.util;
23:
24: import org.jboss.mx.server.ObjectInputStreamWithClassLoader;
25:
26: import java.io.*;
27:
28: /**
29: * SerializationHelper
30: *
31: * @author Jeff Haynie
32: */
33: public class SerializationHelper {
34: /**
35: * deserialize, using the current Thread Context classloader
36: *
37: * @param byteArray
38: * @return deserialized object
39: * @throws IOException
40: * @throws ClassNotFoundException
41: */
42: public static Object deserialize(byte[] byteArray)
43: throws IOException, ClassNotFoundException {
44: return deserialize(byteArray, Thread.currentThread()
45: .getContextClassLoader());
46: }
47:
48: /**
49: * deserialize an object using a specific ClassLoader
50: *
51: * @param byteArray
52: * @param cl
53: * @return deserialized object
54: * @throws java.io.IOException
55: * @throws ClassNotFoundException
56: */
57: public static Object deserialize(byte[] byteArray, ClassLoader cl)
58: throws IOException, ClassNotFoundException {
59: if (byteArray == null) {
60: return null;
61: }
62: if (byteArray.length == 0) {
63: return null;
64: }
65: try {
66: if (cl == null) {
67: // use system loader
68: cl = SerializationHelper.class.getClassLoader();
69: }
70: ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(
71: byteArray);
72: ObjectInputStream objectinputstream = new ObjectInputStreamWithClassLoader(
73: bytearrayinputstream, cl);
74: Object obj = objectinputstream.readObject();
75: return obj;
76: } catch (OptionalDataException optionaldataexception) {
77: throw new IOException(optionaldataexception.getMessage());
78: }
79: }
80:
81: /**
82: * serialize an object
83: *
84: * @param obj
85: * @return serialized object
86: * @throws java.io.IOException
87: */
88: public static byte[] serialize(Object obj) throws IOException {
89: ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream();
90: ObjectOutputStream objectoutputstream = new ObjectOutputStream(
91: bytearrayoutputstream);
92: objectoutputstream.writeObject(obj);
93: return bytearrayoutputstream.toByteArray();
94: }
95: }
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