Examples of org.apache.tiles.ComponentContext

org.apache.tiles.ComponentContext
Encapsulation of the current state of execution. @since Tiles 2.0 @version $Rev: 487203 $ $Date: 2006-12-14 08:12:08 -0500 (Thu, 14 Dec 2006) $

    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain)
        throws IOException, ServletException {


        TilesContainer container = TilesAccess.getContainer(servletContext);
        ComponentContext ctx = container.getComponentContext(request, response);


        ComponentAttribute attr = new ComponentAttribute();
        attr.setType(ComponentAttribute.TEMPLATE);
        attr.setName(targetAttributeName);
        attr.setValue(getTargetResource(request));
        ctx.putAttribute(targetAttributeName, attr);


        try {
            container.render(request, response, definition);
        } catch (TilesException e) {
            throw new ServletException("Error wrapping jsp with tile definition.", e);

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        TilesRequestContext tilesContext = getRequestContext(context);
        endContext(tilesContext);
    }
    
    private ComponentContext startContext(TilesRequestContext tilesContext) {
        ComponentContext context = new BasicComponentContext();
        BasicComponentContext.pushContext(context, tilesContext);
        return context;
    }

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        TilesRequestContext tilesContext = getRequestContext(pageContext);
        return getComponentContext(tilesContext);
    }


    private ComponentContext getComponentContext(TilesRequestContext tilesContext) {
        ComponentContext context = BasicComponentContext.getContext(tilesContext);
        if (context == null) {
            context = new BasicComponentContext();
            BasicComponentContext.pushContext(context, tilesContext);
        }
        return context;

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        if (preparer == null) {
            throw new NoSuchPreparerException("Preparer '" + preparerName + " not found");
        }


        ComponentContext componentContext = BasicComponentContext.getContext(context);


        // TODO: Temporary while preparerInstance gets refactored to throw a more specific exception.
        try {
            preparer.execute(context, componentContext);
        } catch (Exception e) {

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            LOG.info("Access to definition '" + definitionName +
                "' denied.  User not in role '" + definition.getRole());
            return;
        }


        ComponentContext originalContext = getComponentContext(request);
        BasicComponentContext subContext = new BasicComponentContext(originalContext);
        subContext.addMissing(definition.getAttributes());
        BasicComponentContext.pushContext(subContext, request);


        try {

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        }
    }


    public void render(PageContext pageContext, ComponentAttribute attr)
        throws TilesException, IOException {
        ComponentContext context = getComponentContext(pageContext);
        TilesRequestContext request = getRequestContext(pageContext);


        String type = calculateType(pageContext, attr);
        if ("string".equalsIgnoreCase(type)) {
            pageContext.getOut().print(attr.getValue());
            return;


        }


        Map<String, ComponentAttribute> attrs = attr.getAttributes();
        if (attrs != null) {
            for (Map.Entry<String, ComponentAttribute> a : attrs.entrySet()) {
                context.putAttribute(a.getKey(), a.getValue());
            }
        }


        if (isDefinition(pageContext, attr)) {
            render(request, attr.getValue().toString());

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Related Classes of org.apache.tiles.ComponentContext

org.apache.tiles.filter.TilesDecorationFilter

org.apache.tiles.impl.BasicTilesContainer

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