01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.loader.enhancer;
31:
32: import com.caucho.bytecode.JavaClass;
33: import com.caucho.java.gen.GenClass;
34: import com.caucho.log.Log;
35: import com.caucho.util.L10N;
36:
37: import java.util.logging.Logger;
38:
39: /**
40: * Class loader which enhances classes.
41: */
42: abstract public class Enhancer {
43: private static final L10N L = new L10N(Enhancer.class);
44: private static final Logger log = Log.open(Enhancer.class);
45:
46: private static final int ACC_PUBLIC = 0x1;
47: private static final int ACC_PRIVATE = 0x2;
48: private static final int ACC_PROTECTED = 0x4;
49:
50: private String _baseSuffix = ""; // "__ResinBase"
51:
52: /**
53: * Enhances the class.
54: */
55: protected void preEnhance(JavaClass baseClass) throws Exception {
56: }
57:
58: /**
59: * Enhances the class.
60: */
61: protected void enhance(GenClass genClass, JavaClass baseClass,
62: String extClassName) throws Exception {
63: }
64:
65: /**
66: * Enhances the class.
67: */
68: protected void postEnhance(JavaClass baseClass) throws Exception {
69: }
70: }
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