Examples of com.opensymphony.xwork2.ActionContext

com.opensymphony.xwork2.ActionContext
The ActionContext is the context in which an {@link Action} is executed. Each context is basically acontainer of objects an action needs for execution like the session, parameters, locale, etc.

The ActionContext is thread local which means that values stored in the ActionContext are unique per thread. See the {@link ThreadLocal} class for more information. The benefit ofthis is you don't need to worry about a user specific action context, you just get it:
Finally, because of the thread local usage you don't need to worry about making your actions thread safe. @author Patrick Lightbody @author Bill Lynch (docs)

    
    public void removeActionBean(Class<?> objClass, String propertyName)
    {
        if (objClass==null)
            return;
        ActionContext context = ActionContext.getContext();
        String key = getActionBeanName(context, objClass, propertyName);
        if (key!=null)
            context.getSession().remove(key);
    }

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    public void clearActionErrors()
    {
        actionError = null;
        fieldErrors = null;
        // Remove from Session
        ActionContext context = ActionContext.getContext();
        if (context!=null)
            context.getSession().remove(LAST_ACTION_ERROR_ATTRIBUTE);
    }

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    /*
     * @see org.apache.empire.struts2.action.ActionErrorProvider#getLastActionError(boolean)
     */
    public ErrorInfo getLastActionError(boolean clear)
    {
        ActionContext context = ActionContext.getContext();
        ErrorInfo error = (ErrorInfo)context.getSession().get(LAST_ACTION_ERROR_ATTRIBUTE);
        if (clear)
            context.getSession().remove(LAST_ACTION_ERROR_ATTRIBUTE);
        return error;
    }

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        if (error instanceof ActionError)
            actionError = ((ActionError)error);
        else 
            actionError = new ActionError(error);
        // put Error on session
        ActionContext context = ActionContext.getContext();
        context.getSession().put(LAST_ACTION_ERROR_ATTRIBUTE, actionError);
    }

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    /*
     * @see org.apache.empire.struts2.action.ActionErrorProvider#getLastActionMessage(boolean)
     */
    public String getLastActionMessage(boolean clear)
    {
        ActionContext context = ActionContext.getContext();
        Object msg = context.getSession().get(LAST_ACTION_MESSAGE_ATTRIBUTE);
        if (clear)
            context.getSession().remove(LAST_ACTION_MESSAGE_ATTRIBUTE);
        return StringUtils.toString(msg);
    }

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    protected void setActionMessage(String message)
    {   // put Message on session
        if (message.startsWith("!"))
            message = getText(message.substring(1));
        ActionContext context = ActionContext.getContext();
        context.getSession().put(LAST_ACTION_MESSAGE_ATTRIBUTE, message);
    }

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    // ------- Request Param accessors -------
    
    public final Map<String,Object> getRequestParameters()
    {
        ActionContext context = ActionContext.getContext();
        return (context!=null) ? context.getParameters() : null;
    }

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    public String intercept(ActionInvocation invocation) throws Exception {
        
        log.debug("Entering UIActionPrepareInterceptor");
        
        final Object action = invocation.getAction();
        final ActionContext context = invocation.getInvocationContext();
        
        // is this one of our own UIAction classes?
        if (action instanceof UIActionPreparable) {
            
            log.debug("action is UIActionPreparable, calling myPrepare() method");

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    public String intercept(ActionInvocation invocation) throws Exception {
        
        log.debug("Entering UIActionInterceptor");
        
        final Object action = invocation.getAction();
        final ActionContext context = invocation.getInvocationContext();
        
        HttpServletRequest request = (HttpServletRequest) context.get(HTTP_REQUEST);
        
        // is this one of our own UIAction classes?
        if (action instanceof UIAction) {
            
            log.debug("action is a UIAction, setting relevant attributes");

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        Configuration config = configurationManager.getConfiguration();
        Container container = config.getContainer();


        ValueStack stack = container.getInstance(ValueStackFactory.class).createValueStack();
        stack.getContext().put(ActionContext.CONTAINER, container);
        ActionContext.setContext(new ActionContext(stack.getContext()));


        ActionContext.getContext().setSession(new HashMap<String, Object>());


        // change the port on the mailSender so it doesn't conflict with an 
        // existing SMTP server on localhost

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