Examples of org.apache.velocity.context.Context

org.apache.velocity.context.Context
Interface describing the application data context. This set of routines is used by the application to set and remove 'named' data object to pass them to the template engine to use when rendering a template. This is the same set of methods supported by the original Context class @see org.apache.velocity.context.AbstractContext @see org.apache.velocity.VelocityContext @author Jason van Zyl @author Geir Magnusson Jr. @version $Id: Context.java 291585 2005-09-26 08:56:23Z henning $

    Translator propertyTrans = Util.createPackageTranslator(UserPropertyHandler.class, locale);
    return getDemoContext(propertyTrans, isAdministrativeUser);
  }
  
  public Context getDemoContext(Translator propertyTrans, boolean isAdministrativeUser) {
    Context vcContext = new VelocityContext();
    List<UserPropertyHandler> userPropertyHandlers2;
    userPropertyHandlers2 = UserManager.getInstance().getAllUserPropertyHandlers();
    for (UserPropertyHandler userPropertyHandler : userPropertyHandlers2) {
      String propertyName = userPropertyHandler.getName();
      String userValue = propertyTrans.translate("import.example." + userPropertyHandler.getName());
      vcContext.put(propertyName, userValue);
    }
    return vcContext;
  }

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   */
  private void initTransformer() {
    // build new transformer
    InputStream xslin = getClass().getResourceAsStream("/org/olat/ims/resources/xsl/" + XSLFILENAME);
    // translate xsl with velocity
    Context vcContext = new VelocityContext();
    vcContext.put("t", pT);
    vcContext.put("staticPath", StaticMediaDispatcher.createStaticURIFor(""));
    String xslAsString = "";
    try {
      xslAsString = slurp(xslin);
    } catch (IOException e) {
      log.error("Could not convert xsl to string!", e);

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    //to validate the input a special isValidValue is used.
    if (usageIdentifyer.equals(UserBulkChangeStep00.class.getCanonicalName())){
      tElem.setItemValidatorProvider(new ItemValidatorProvider(){
        public boolean isValidValue(String value, ValidationError validationError, Locale locale2) {
          UserBulkChangeManager ubcMan = UserBulkChangeManager.getInstance();
          Context vcContext = new VelocityContext();
          if (user==null){
            vcContext = ubcMan.getDemoContext(locale2, isAdministrativeUser);
          }
          //should be used if user-argument !=null --> move to right place
          else {

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     *
     * @return A Context object.
     */
    public Context getContext()
    {
        Context globalContext =
                pullModelActive ? pullService.getGlobalContext() : null;


        Context ctx = new VelocityContext(globalContext);
        return ctx;
    }

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     *
     * @return A Context Object.
     */
    public Context getNewContext()
    {
        Context ctx = new VelocityContext();


        // Attach an Event Cartridge to it, so we get exceptions
        // while invoking methods from the Velocity Screens
        EventCartridge ec = new EventCartridge();
        ec.addEventHandler(this);

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     * @exception Exception, a generic exception.
     */
    public ConcreteElement buildTemplate(RunData data)
            throws Exception
    {
        Context context = TurbineVelocity.getContext(data);


        String navigationTemplate = data.getTemplateInfo().getNavigationTemplate();
        String templateName
                = TurbineTemplate.getNavigationTemplateName(navigationTemplate);

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     */
    public void doBuild(RunData data)
        throws Exception
    {
        // Get the context needed by Velocity.
        Context context = TurbineVelocity.getContext(data);


        // variable for the screen in the layout template
        context.put(TurbineConstants.SCREEN_PLACEHOLDER,
                    new TemplateScreen(data));


        // variable to reference the navigation screen in the layout template
        context.put(TurbineConstants.NAVIGATION_PLACEHOLDER,
                    new TemplateNavigation(data));


        // Grab the layout template set in the VelocityPage.
        // If null, then use the default layout template
        // (done by the TemplateInfo object)

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     */
    public void doBuild(RunData data)
        throws Exception
    {
        // Get the context needed by Velocity.
        Context context = TurbineVelocity.getContext(data);


        String screenName = data.getScreen();


        log.debug("Loading Screen " + screenName);


        // First, generate the screen and put it in the context so
        // we can grab it the layout template.
        ConcreteElement results =
            ScreenLoader.getInstance().eval(data, screenName);


        String returnValue = (results == null) ? "" : results.toString();


        // variable for the screen in the layout template
        context.put(TurbineConstants.SCREEN_PLACEHOLDER, returnValue);


        // variable to reference the navigation screen in the layout template
        context.put(TurbineConstants.NAVIGATION_PLACEHOLDER,
                    new TemplateNavigation(data));


        // Grab the layout template set in the VelocityPage.
        // If null, then use the default layout template
        // (done by the TemplateInfo object)

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     */
    public Context getContext(RunData data)
    {
        // Attempt to get it from the data first.  If it doesn't
        // exist, create it and then stuff it into the data.
        Context context = (Context)
            data.getTemplateInfo().getTemplateContext(VelocityService.CONTEXT);


        if (context == null)
        {
            context = getContext();
            context.put(VelocityService.RUNDATA_KEY, data);


            if (pullModelActive)
            {
                // Populate the toolbox with request scope, session scope
                // and persistent scope tools (global tools are already in

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     * @exception Exception, a generic exception.
     */
    protected void doBuildBeforeAction(RunData data)
        throws Exception
    {
        Context context = TurbineVelocity.getContext(data);
        data.getTemplateInfo()
            .setTemplateContext(VelocityService.CONTEXT, context);
    }

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