| SimplePojoClp.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.portal.kernel.util;
16
17 import com.liferay.portal.kernel.bean.BeanPropertiesUtil;
18
19 /**
20 * <a href="SimplePojoClp.java.html"><b><i>View Source</i></b></a>
21 *
22 * <p>
23 * A class loader proxy able to serialize simple POJOs between two class
24 * loaders. It only works for simple POJOs following the Java Beans semantics.
25 * The local and remote classes do not have to match or even be derived from
26 * each other as long as their properties match. Any bean properties that the
27 * source bean exposes but the target bean does not will silently be ignored.
28 * </p>
29 *
30 * @author Micha Kiener
31 * @author Brian Wing Shun Chan
32 */
33 public class SimplePojoClp<T> {
34
35 public SimplePojoClp(
36 Class<? extends T> localImplementationClass,
37 ClassLoader remoteClassLoader)
38 throws ClassNotFoundException {
39
40 this(
41 localImplementationClass, remoteClassLoader,
42 localImplementationClass.getName());
43 }
44
45 public SimplePojoClp(
46 Class<? extends T> localImplementationClass,
47 ClassLoader remoteClassLoader, String remoteImplementationClassName)
48 throws ClassNotFoundException {
49
50 _localImplementationClass = localImplementationClass;
51 _remoteClassLoader = remoteClassLoader;
52 _remoteImplementationClass = _remoteClassLoader.loadClass(
53 remoteImplementationClassName);
54 }
55
56 public T createLocalObject(Object remoteInstance)
57 throws IllegalAccessException, InstantiationException {
58
59 T localInstance = _localImplementationClass.newInstance();
60
61 BeanPropertiesUtil.copyProperties(
62 remoteInstance, localInstance, _localImplementationClass);
63
64 return localInstance;
65 }
66
67 public Object createRemoteObject(T localInstance)
68 throws IllegalAccessException, InstantiationException {
69
70 Object remoteInstance = _remoteImplementationClass.newInstance();
71
72 BeanPropertiesUtil.copyProperties(
73 localInstance, remoteInstance, _remoteImplementationClass);
74
75 return remoteInstance;
76 }
77
78 private Class<? extends T> _localImplementationClass;
79 private ClassLoader _remoteClassLoader;
80 private Class<?> _remoteImplementationClass;
81
82 }