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.config.program;
31:
32: import com.caucho.config.*;
33: import com.caucho.webbeans.context.DependentScope;
34:
35: /**
36: * A saved program for configuring an object.
37: */
38: public abstract class ConfigProgram {
39: /**
40: * Configures the bean using the current program.
41: *
42: * @param bean the bean to configure
43: * @param env the Config environment
44: */
45: abstract public void inject(Object bean, ConfigContext env);
46:
47: public void addProgram(ConfigProgram program) {
48: throw new UnsupportedOperationException(
49: "Cannot add a program to a BuilderProgram. You probably need a BuilderProgramContainer.");
50: }
51:
52: /**
53: * Configures the object.
54: */
55: final public void configure(Object bean) throws ConfigException {
56: // server/23e7
57: inject(bean, ConfigContext.create());
58: }
59:
60: final public Object configure(Class type) throws ConfigException {
61: return configure(type, ConfigContext.create());
62: }
63:
64: /**
65: * Configures a bean given a class to instantiate.
66: */
67: final protected Object configure(Class type, ConfigContext env)
68: throws ConfigException {
69: try {
70: Object bean = type.newInstance();
71:
72: inject(bean, env);
73:
74: return bean;
75: } catch (RuntimeException e) {
76: throw e;
77: } catch (Exception e) {
78: throw ConfigException.create(e);
79: }
80: }
81:
82: public void init(Object bean) throws ConfigException {
83: Config.init(bean);
84: }
85: }
|