Source Code Cross Referenced for ExternalReferencesInterceptor.java in  » J2EE » webwork-2.2.6 » com » opensymphony » xwork » interceptor » 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;
06:
07:        import com.opensymphony.xwork.ActionInvocation;
08:        import com.opensymphony.xwork.config.ConfigurationManager;
09:        import com.opensymphony.xwork.config.ExternalReferenceResolver;
10:        import com.opensymphony.xwork.config.entities.PackageConfig;
11:
12:        /**
13:         * <!-- START SNIPPET: description -->
14:         * TODO: Give a description of the Interceptor.
15:         * <!-- END SNIPPET: description -->
16:         *
17:         * <!-- START SNIPPET: parameters -->
18:         * TODO: Describe the paramters for this Interceptor.
19:         * <!-- END SNIPPET: parameters -->
20:         *
21:         * <!-- START SNIPPET: extending -->
22:         * TODO: Discuss some possible extension of the Interceptor.
23:         * <!-- END SNIPPET: extending -->
24:         *
25:         * <pre>
26:         * <!-- START SNIPPET: example -->
27:         * &lt;!-- TODO: Describe how the Interceptor reference will effect execution --&gt;
28:         * &lt;action name="someAction" class="com.examples.SomeAction"&gt;
29:         *      TODO: fill in the interceptor reference.
30:         *     &lt;interceptor-ref name=""/&gt;
31:         *     &lt;result name="success"&gt;good_result.ftl&lt;/result&gt;
32:         * &lt;/action&gt;
33:         * <!-- END SNIPPET: example -->
34:         * </pre>
35:         *
36:         * @author Ross
37:         *         <p/>
38:         *         Resolves external references using the <code>ExternalReferenceResolver</code> configured on the package
39:         *         Reference Resolution is encapsulated in an interceptor so that the user can configure when references should
40:         *         be resloved
41:         */
42:        public class ExternalReferencesInterceptor extends AroundInterceptor {
43:
44:            protected void after(ActionInvocation dispatcher, String result)
45:                    throws Exception {
46:            }
47:
48:            protected void before(ActionInvocation invocation) throws Exception {
49:                String packageName = invocation.getProxy().getConfig()
50:                        .getPackageName();
51:                PackageConfig packageConfig = ConfigurationManager
52:                        .getConfiguration().getPackageConfig(packageName);
53:
54:                if (packageConfig != null) {
55:                    ExternalReferenceResolver erResolver = packageConfig
56:                            .getExternalRefResolver();
57:
58:                    if (erResolver != null) {
59:                        erResolver.resolveReferences(invocation);
60:                    }
61:                }
62:            }
63:        }