Source Code Cross Referenced for ComponentInterceptor.java in  » J2EE » webwork-2.2.6 » com » opensymphony » xwork » interceptor » component » Java Source Code / Java DocumentationJava Source Code and Java Documentation

01:        /*
02:         * Copyright (c) 2002-2006 by OpenSymphony
03:         * All rights reserved.
04:         */
05:        package com.opensymphony.xwork.interceptor.component;
06:
07:        import com.opensymphony.xwork.ActionContext;
08:        import com.opensymphony.xwork.ActionInvocation;
09:        import com.opensymphony.xwork.interceptor.AroundInterceptor;
10:        import org.apache.commons.logging.Log;
11:        import org.apache.commons.logging.LogFactory;
12:
13:        /**
14:         * <!-- START SNIPPET: description -->
15:         *
16:         * A simple interceptor that applies the WebWork IOC container {@link ComponentManager} against the executing action. Note, WebWork IOC is deprecated and it is highly recommended that you look at alternative solutions, such as Spring.
17:         *
18:         * <!-- END SNIPPET: description -->
19:         *
20:         * <p/> <u>Interceptor parameters:</u>
21:         *
22:         * <!-- START SNIPPET: parameters -->
23:         *
24:         * <ul>
25:         *
26:         * <li>None</li>
27:         *
28:         * </ul>
29:         *
30:         * <!-- END SNIPPET: parameters -->
31:         *
32:         * <p/> <u>Extending the interceptor:</u>
33:         *
34:         * <p/>
35:         *
36:         * <!-- START SNIPPET: extending -->
37:         *
38:         * There are no known extension points to this interceptor.
39:         *
40:         * <!-- END SNIPPET: extending -->
41:         *
42:         * <p/> <u>Example code:</u>
43:         *
44:         * <pre>
45:         * <!-- START SNIPPET: example -->
46:         * &lt;action name="someAction" class="com.examples.SomeAction"&gt;
47:         *     &lt;interceptor-ref name="componentStack"/&gt;
48:         *     &lt;interceptor-ref name="basicStack"/&gt;
49:         *     &lt;result name="success"&gt;good_result.ftl&lt;/result&gt;
50:         * &lt;/action&gt;
51:         * <!-- END SNIPPET: example -->
52:         * </pre>
53:         *
54:         * @author joew@thoughtworks.com
55:         * @author plightbo
56:         * @deprecated WebWork's IoC has been deprecated, please use an alternative such as Spring.
57:         * @version $Revision: 860 $
58:         */
59:        public class ComponentInterceptor extends AroundInterceptor {
60:            public static final String COMPONENT_MANAGER = "com.opensymphony.xwork.interceptor.component.ComponentManager";
61:            private static final Log LOG = LogFactory
62:                    .getLog(ComponentInterceptor.class);
63:            private static boolean deprecationLogged = false;
64:
65:            public void init() {
66:            }
67:
68:            protected void after(ActionInvocation dispatcher, String result)
69:                    throws Exception {
70:            }
71:
72:            protected void before(ActionInvocation dispatcher) throws Exception {
73:                if (!deprecationLogged) {
74:                    LOG
75:                            .info("WebWork's IoC has been deprecated, please use an alternative such as Spring");
76:                    deprecationLogged = true;
77:                }
78:                ComponentManager container = (ComponentManager) ActionContext
79:                        .getContext().get(COMPONENT_MANAGER);
80:
81:                if (container != null) {
82:                    container.initializeObject(dispatcher.getAction());
83:                }
84:            }
85:        }