Examples of org.apache.struts.action.Action

org.apache.struts.action.Action
An Action is an adapter between the contents of an incoming HTTP request and the corresponding business logic that should be executed to process this request. The controller (RequestProcessor) will select an appropriate Action for each request, create an instance (if necessary), and call the execute method.

Actions must be programmed in a thread-safe manner, because the controller will share the same instance for multiple simultaneous requests. This means you should design with the following items in mind:
- Instance and static variables MUST NOT be used to store information related to the state of a particular request. They MAY be used to share global resources across requests for the same action.
- Access to other resources (JavaBeans, session variables, etc.) MUST be synchronized if those resources require protection. (Generally, however, resource classes should be designed to provide their own protection where necessary.
When an Action instance is first created, the controller will call setServlet with a non-null argument to identify the servlet instance to which this Action is attached. When the servlet is to be shut down (or restarted), the setServlet method will be called with a null argument, which can be used to clean up any allocated resources in use by this Action.
@version $Rev: 421119 $ $Date: 2005-08-26 21:58:39 -0400 (Fri, 26 Aug 2005)$

        if ((valid == null) || !valid.booleanValue()) {
            return (false);
        }


        // Acquire the resources we will need to send to the Action
        Action action = (Action)
            context.get(getActionKey());
        if (action == null) {
            return (false);
        }
        ActionConfig actionConfig = (ActionConfig)

View Full Code Here

        throws IOException {


        if (log.isTraceEnabled()) {
            log.trace("Performing standard action create");
        }
        Action result = super.processActionCreate(request, response, mapping);
        if (log.isDebugEnabled()) {
            log.debug("Standard action create returned " +
                      result.getClass().getName() + " instance");
        }
        return (result);


    }

View Full Code Here

        throws IOException {


        if (log.isTraceEnabled()) {
            log.trace("Performing standard action create");
        }
        Action result = super.processActionCreate(request, response, mapping);
        if (log.isDebugEnabled()) {
            log.debug("Standard action create returned " +
                      result.getClass().getName() + " instance");
        }
        return (result);


    }

View Full Code Here

    }
    
    public String execute() throws Exception {
        ActionContext ctx = ActionContext.getContext();
        ActionConfig actionConfig = ctx.getActionInvocation().getProxy().getConfig();
        Action action = null;
        try {
            action = (Action) objectFactory.buildBean(className, null);
        } catch (Exception e) {
            throw new StrutsException("Unable to create the legacy Struts Action", e, actionConfig);
        }
        
        // We should call setServlet() here, but let's stub that out later
        
        Struts1Factory strutsFactory = new Struts1Factory(Dispatcher.getInstance().getConfigurationManager().getConfiguration());
        ActionMapping mapping = strutsFactory.createActionMapping(actionConfig);
        HttpServletRequest request = ServletActionContext.getRequest();
        HttpServletResponse response = ServletActionContext.getResponse();
        ActionForward forward = action.execute(mapping, actionForm, request, response);
        
        ActionMessages messages = (ActionMessages) request.getAttribute(Globals.MESSAGE_KEY);
        if (messages != null) {
            for (Iterator i = messages.get(); i.hasNext(); ) {
                ActionMessage msg = (ActionMessage) i.next();

View Full Code Here

        if (type == null) {
            return (false);
        }


        // Create (if necessary) and cache an Action instance
        Action action = null;
        Map actions = getActions(context, actionConfig.getModuleConfig());
        synchronized (actions) {
            action = (Action) actions.get(type);
            if (action == null) {
                log.info("Initialize action of type: " + type + " for actionConfig " + actionConfig);
                action = (Action) ClassUtils.getApplicationInstance(type);
                ActionServlet actionServlet = (ActionServlet)
                    context.get(getActionServletKey());
                action.setServlet(actionServlet);
                actions.put(type, action);
            }
        }
        context.put(getActionKey(), action);

View Full Code Here

        throws IOException {


        if (log.isTraceEnabled()) {
            log.trace("Performing standard action create");
        }
        Action result = super.processActionCreate(request, response, mapping);
        if (log.isDebugEnabled()) {
            log.debug("Standard action create returned " +
                      result.getClass().getName() + " instance");
        }
        return (result);


    }

View Full Code Here

        throws IOException {


        if (log.isTraceEnabled()) {
            log.trace("Performing standard action create");
        }
        Action result = super.processActionCreate(request, response, mapping);
        if (log.isDebugEnabled()) {
            log.debug("Standard action create returned " +
                      result.getClass().getName() + " instance");
        }
        return (result);


    }

View Full Code Here

        if (actions == null) {
            actions = new HashMap();
            context.getApplicationScope().put(actionsKey, actions);
        }


        Action action = null;


        synchronized (actions) {
            action = (Action) actions.get(type);


            if (action == null) {
                action = createAction(context, type);
                actions.put(type, action);
            }
        }


        if (action.getServlet() == null) {
            ServletActionContext saContext = (ServletActionContext) context;
            ActionServlet actionServlet = saContext.getActionServlet();


            action.setServlet(actionServlet);
        }


        return (action);
    }

View Full Code Here

        if ((valid == null) || !valid.booleanValue()) {
            return (false);
        }


        // Acquire the resources we will need to send to the Action
        Action action = actionCtx.getAction();


        if (action == null) {
            return (false);
        }

View Full Code Here


            return (false);
        }


        // Create (if necessary) and cache an Action instance
        Action action = getAction(actionCtx, type, actionConfig);


        if (LOG.isTraceEnabled()) {
            LOG.trace("setting action to " + action);
        }

View Full Code Here

0 1 2 3 4 5 6 7

TOP

Related Classes of org.apache.struts.action.Action

br.gov.serpro.ouvidoria.struts.CustomRequestProcessor

com.adito.core.actions.AbstractMultiFormDispatchAction

org.apache.beehive.netui.pageflow.PageFlowRequestProcessor

org.apache.scaffold.http.SuperServlet

org.apache.struts.chain.AbstractExecuteAction

org.apache.struts.chain.commands.AbstractCreateAction

org.apache.struts.chain.commands.AbstractExecuteAction

org.apache.struts.chain.commands.servlet.CreateAction

org.apache.struts.chain.CreateAction

org.apache.struts.config.ApplicationConfig

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.