Examples of ch.entwine.weblounge.common.site.HTMLAction

Package ch.entwine.weblounge.common.site

Examples of ch.entwine.weblounge.common.site.HTMLAction

ch.entwine.weblounge.common.site.HTMLAction
An HTMLAction is java code that can be mounted to a specific url and that will be executed if these conditions hold:
1. The request is directly targeted at the action's mountpoint
2. The action supports the {@link ch.entwine.weblounge.common.request.RequestFlavor#HTML} request flavor
3. The client specifies that same flavor in his request
Once a request hits the mountpoint of an action, the action can then be called in various ways, depending on whether it is rendered using a template or not. The life cycle using a template follows this pattern:
1. {@link #configure(WebloungeRequest,WebloungeResponse,ch.entwine.weblounge.common.request.RequestFlavor)}
2. {@link #startResponse(WebloungeRequest,WebloungeResponse)}
3. {@link #startHeader(WebloungeRequest,WebloungeResponse)}
4. {@link #startStage(WebloungeRequest,WebloungeResponse)}
5. {@link #startComposer(WebloungeRequest,WebloungeResponse,String)}
6. {@link #startPagelet(WebloungeRequest,WebloungeResponse,String,int)}
Note that the calls to startHeader(), startStage(), startComposer() and startPagelet() are depending on the return value of preceding calls. See the respective method descriptions for more details.
If no template definition is found, then the request is forwarded to the template that was used to send the request (by clicking a link).
Note: A class that implements the Action interface has to provide a default constructor (no arguments), since action handlers are created using reflection.

        // Set composer
        request.setAttribute(WebloungeRequest.COMPOSER, composer);


        // Check for action handler
        if (action != null && action instanceof HTMLAction) {
          HTMLAction htmlAction = (HTMLAction) action;
          logger.debug("Action handler found");


          if (targetPage != null) {
            String templateId = targetPage.getTemplate();
            PageTemplate template = site.getTemplate(templateId);
            if (template != null && id.equalsIgnoreCase(template.getStage())) {
              template.setEnvironment(request.getEnvironment());
              if (htmlAction.startStage(request, response, composer) == HTMLAction.SKIP_COMPOSER) {
                return EVAL_PAGE;
              }
            }
          }
          if (htmlAction.startComposer(request, response, composer) == HTMLAction.SKIP_COMPOSER) {
            return EVAL_PAGE;
          }
        }


        // Add cache tag for content provider (in case of inheritance)

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      // Check whether this request is being controlled by an action. If
      // so, we have to call the action on composer and pagelet start


      if (action != null && action instanceof HTMLAction) {
        HTMLAction htmlAction = (HTMLAction) action;
        try {
          if (htmlAction.startPagelet(request, response, pagelet) == HTMLAction.SKIP_PAGELET) {
            return;
          }
        } catch (Exception e) {
          logger.warn("Exception while rendering pagelet through action " + action + " on " + url, e);
          response.invalidate();

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    // Valid time
    action.setCacheExpirationTime(blueprint.getCacheExpirationTime());


    // Are we looking at an html action?
    if (blueprint instanceof HTMLAction) {
      HTMLAction htmlBlueprint = (HTMLAction)blueprint;
      HTMLAction htmlAction = (HTMLAction)action;


      // Page URI
      if (htmlBlueprint.getPageURI() != null) {
        ResourceURI uri = htmlBlueprint.getPageURI();
        htmlAction.setPageURI(new PageURIImpl(uri.getSite(), uri.getPath()));
      }


      // Default page template
      htmlAction.setDefaultTemplate(htmlBlueprint.getDefaultTemplate());
    }
    
    // Name
    action.setName(blueprint.getName());

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   * 
   * @see javax.servlet.jsp.tagext.Tag#doEndTag()
   */
  @Override
  public int doEndTag() throws JspException {
    HTMLAction action = (HTMLAction) getRequest().getAttribute(WebloungeRequest.ACTION);


    // See what the action has to contribute
    boolean skipHeaders = false;
    try {
      pageContext.getOut().flush();
      if (action != null && action.startHeader(request, response) == HTMLAction.SKIP_HEADER) {
        pageContext.getOut().flush();
        skipHeaders = true;
        return EVAL_PAGE;
      }
    } catch (Exception e) {

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        throw new IllegalStateException("Page template '" + templateId + "' specified by request parameter was not found");
    }


    // See if the action handler specifies a template
    if (template == null && action instanceof HTMLAction) {
      HTMLAction htmlAction = (HTMLAction) action;
      template = htmlAction.getTemplate();
      if (template == null)
        logger.debug("Action '{}' did not define a page template", action.getIdentifier());
    }


    // See if the action handler specifies a default template
    if (template == null && action instanceof HTMLAction) {
      HTMLAction htmlAction = (HTMLAction) action;
      template = htmlAction.getDefaultTemplate();
      if (template == null)
        logger.debug("Action '{}' did not define a default page template", action.getIdentifier());
    }


    // By default, the page will have to deliver on the template

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      }
    }


    // Check the action configuration
    else if (action instanceof HTMLAction) {
      HTMLAction htmlAction = (HTMLAction) action;
      if (htmlAction.getPageURI() != null) {
        target = htmlAction.getPageURI();
        targetForced = true;
      }
    }


    // Nothing found, let's choose the site's homepage

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Related Classes of ch.entwine.weblounge.common.site.HTMLAction

ch.entwine.weblounge.common.impl.site.ActionPoolFactory

ch.entwine.weblounge.dispatcher.impl.handler.ActionRequestHandlerImpl

ch.entwine.weblounge.taglib.ComposerTagSupport

ch.entwine.weblounge.taglib.content.HTMLHeaderTag

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