Examples of org.apache.struts.config.ModuleConfig

org.apache.struts.config.ModuleConfig

The collection of static configuration information that describes a Struts-based module. Multiple modules are identified by a prefix at the beginning of the context relative portion of the request URI. If no module prefix can be matched, the default configuration (with a prefix equal to a zero-length string) is selected, which is elegantly backwards compatible with the previous Struts behavior that only supported one module.
@version $Rev: 421119 $ $Date: 2005-08-06 04:12:10 -0400 (Sat, 06 Aug 2005)$ @since Struts 1.1

     * @param context The ServletContext for this web application
     * @return the ModuleConfig object
     */
    public ModuleConfig getModuleConfig(HttpServletRequest request,
        ServletContext context) {
        ModuleConfig moduleConfig = this.getModuleConfig(request);


        if (moduleConfig == null) {
            moduleConfig = this.getModuleConfig("", context);
            request.setAttribute(Globals.MODULE_KEY, moduleConfig);
        }

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     * @param context The ServletContext for this web application
     */
    public void selectModule(String prefix, HttpServletRequest request,
        ServletContext context) {
        // Expose the resources for this module
        ModuleConfig config = getModuleConfig(prefix, context);


        if (config != null) {
            request.setAttribute(Globals.MODULE_KEY, config);


            MessageResourcesConfig[] mrConfig =
                config.findMessageResourcesConfigs();


            for (int i = 0; i < mrConfig.length; i++) {
                String key = mrConfig[i].getKey();
                MessageResources resources =
                    (MessageResources) context.getAttribute(key + prefix);

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            if (multipartHandler != null) {
                return multipartHandler;
            }
        }


        ModuleConfig moduleConfig =
            ModuleUtils.getInstance().getModuleConfig(request);


        multipartClass = moduleConfig.getControllerConfig().getMultipartClass();


        // Try to initialize the global request handler
        if (multipartClass != null) {
            try {
                multipartHandler =

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        if (pattern.endsWith("/*")) {
            sb.append(pattern.substring(0, pattern.length() - 2));
            sb.append(action.getPath());
        } else if (pattern.startsWith("*.")) {
            ModuleConfig appConfig =
                ModuleUtils.getInstance().getModuleConfig(request);


            sb.append(appConfig.getPrefix());
            sb.append(action.getPath());
            sb.append(pattern.substring(1));
        } else {
            throw new IllegalArgumentException(pattern);
        }

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        }


        // Calculate and cache the form name
        FormComponent form = (FormComponent) component;
        String action = form.getAction();
        ModuleConfig moduleConfig = form.lookupModuleConfig(context);
        ActionConfig actionConfig = moduleConfig.findActionConfig(action);
        if (actionConfig == null) {
            throw new IllegalArgumentException("Cannot find action '" +
                                               action + "' configuration");
        }
        String beanName = actionConfig.getAttribute();

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     */
    protected MessageResources getResources(HttpServletRequest request,
        String key) {
        // Identify the current module
        ServletContext context = getServlet().getServletContext();
        ModuleConfig moduleConfig =
            ModuleUtils.getInstance().getModuleConfig(request, context);


        // Return the requested message resources instance
        return (MessageResources) context.getAttribute(key
            + moduleConfig.getPrefix());
    }

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            getServletContext().setAttribute(Globals.ACTION_SERVLET_KEY, this);
            initModuleConfigFactory();


            // Initialize modules as needed
            ModuleConfig moduleConfig = initModuleConfig("", config);


            initModuleMessageResources(moduleConfig);
            initModulePlugIns(moduleConfig);
            initModuleFormBeans(moduleConfig);
            initModuleForwards(moduleConfig);
            initModuleExceptionConfigs(moduleConfig);
            initModuleActions(moduleConfig);
            moduleConfig.freeze();


            Enumeration names = getServletConfig().getInitParameterNames();


            while (names.hasMoreElements()) {
                String name = (String) names.nextElement();


                if (!name.startsWith(configPrefix)) {
                    continue;
                }


                String prefix = name.substring(configPrefixLength);


                moduleConfig =
                    initModuleConfig(prefix,
                        getServletConfig().getInitParameter(name));
                initModuleMessageResources(moduleConfig);
                initModulePlugIns(moduleConfig);
                initModuleFormBeans(moduleConfig);
                initModuleForwards(moduleConfig);
                initModuleExceptionConfigs(moduleConfig);
                initModuleActions(moduleConfig);
                moduleConfig.freeze();
            }


            this.initModulePrefixes(this.getServletContext());


            this.destroyConfigDigester();

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            if (!(value instanceof ModuleConfig)) {
                continue;
            }


            ModuleConfig config = (ModuleConfig) value;


            if (this.getProcessorForModule(config) != null) {
                this.getProcessorForModule(config).destroy();
            }


            getServletContext().removeAttribute(name);


            PlugIn[] plugIns =
                (PlugIn[]) getServletContext().getAttribute(Globals.PLUG_INS_KEY
                    + config.getPrefix());


            if (plugIns != null) {
                for (int i = 0; i < plugIns.length; i++) {
                    int j = plugIns.length - (i + 1);


                    plugIns[j].destroy();
                }


                getServletContext().removeAttribute(Globals.PLUG_INS_KEY
                    + config.getPrefix());
            }
        }
    }

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     * @return The module configuration object for the currently selected
     *         module.
     * @since Struts 1.1
     */
    protected ModuleConfig getModuleConfig(HttpServletRequest request) {
        ModuleConfig config =
            (ModuleConfig) request.getAttribute(Globals.MODULE_KEY);


        if (config == null) {
            config =
                (ModuleConfig) getServletContext().getAttribute(Globals.MODULE_KEY);

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                + "' configuration from '" + paths + "'");
        }


        // Parse the configuration for this module
        ModuleConfigFactory factoryObject = ModuleConfigFactory.createFactory();
        ModuleConfig config = factoryObject.createModuleConfig(prefix);


        // Configure the Digester instance we will use
        Digester digester = initConfigDigester();


        List urls = splitAndResolvePaths(paths);
        URL url;


        for (Iterator i = urls.iterator(); i.hasNext();) {
            url = (URL) i.next();
            digester.push(config);
            this.parseModuleConfigFile(digester, url);
        }


        getServletContext().setAttribute(Globals.MODULE_KEY
            + config.getPrefix(), config);


        return config;
    }

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