Examples of org.apache.tapestry5.MarkupWriter

org.apache.tapestry5.MarkupWriter
An interface used by objects, such as Tapestry components, that need to render themselves as some form of XML markup. A markup writer maintains the idea of a current element. Attributes are added to the current element, and new text and elements are placed inside the current element. In this way, the markup writer maintains a facade that XML markup is generated as a stream, even though the implementation builds a kind of DOM tree. The DOM tree can be also be manipulated. This solves a number of problems from Tapestry 4 (and earlier) where random access to the DOM was desired and had to be simulated through complex buffering.

        resources.triggerEvent(EventConstants.PROVIDE_COMPLETIONS, new Object[]
        { input }, callback);


        ContentType contentType = responseRenderer.findContentType(this);


        MarkupWriter writer = factory.newPartialMarkupWriter(contentType);


        generateResponseMarkup(writer, matchesHolder.get());


        return new TextStreamResponse(contentType.toString(), writer.toString());
    }

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    @Test
    public void no_anchor()
    {
        Link link = mockLink();
        ComponentResources resources = mockComponentResources();
        MarkupWriter writer = new MarkupWriterImpl();


        train_toURI(link, LINK_URI);
        //note that we aren't trying to test the parameters code here, so we only worry about the single, simplest branch.
        //The parameters code is fully tested in CoreBehaviorsTests.
        expect(resources.isBound("parameters")).andReturn(false);


        resources.renderInformalParameters(writer);


        replay();


        linkFixture.inject(null, resources);


        linkFixture.writeLink(writer, link);


        verify();


        Element e = writer.getElement();


        writer.write("link text");
        writer.end();


        assertEquals(writer.toString(), "<a href=\"/foo/bar.baz\">link text</a>");
    }

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    @Test
    public void with_anchor()
    {
        Link link = mockLink();
        ComponentResources resources = mockComponentResources();
        MarkupWriter writer = new MarkupWriterImpl();


        train_toURI(link, LINK_URI);


        //see note in no_anchor.
        expect(resources.isBound("parameters")).andReturn(false);


        resources.renderInformalParameters(writer);


        replay();


        linkFixture.inject("wilma", resources);


        linkFixture.writeLink(writer, link);


        verify();


        writer.write("link text");
        writer.end();


        assertEquals(writer.toString(), "<a href=\"/foo/bar.baz#wilma\">link text</a>");
    }

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                if (pageName == null)
                {
                    throw new IllegalStateException("The active page name has not been specified.");
                }


                MarkupWriter writer = factory.newPartialMarkupWriter(pageName);


                // ... and here, the pipeline eventually reaches the PRQ to let it render the root render command.


                partialMarkupRenderer.renderMarkup(writer, reply);

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        requestGlobals.storeActivePageName(page.getName());


        ContentType contentType = pageContentTypeAnalyzer.findContentType(page);
        
        MarkupWriter writer = markupWriterFactory.newMarkupWriter(page);


        markupRenderer.renderPageMarkup(page, writer);


        PrintWriter pw = response.getPrintWriter(contentType.toString());
        long startNanos = -1l;
        boolean debugEnabled = logger.isDebugEnabled();
        if (debugEnabled)
        {
            startNanos = System.nanoTime();
        }
        writer.toMarkup(pw);




        if (debugEnabled)
        {
            long endNanos = System.nanoTime();

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                queue.push(command2);
            }
        };


        Logger logger = mockLogger();
        MarkupWriter writer = mockMarkupWriter();
        RenderQueueImpl queue = new RenderQueueImpl(logger);


        // There's only one check for trace enabled now.


        expect(logger.isTraceEnabled(TapestryMarkers.RENDER_COMMANDS)).andReturn(false);

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                return "FailedCommand";
            }
        };


        Logger logger = mockLogger();
        MarkupWriter writer = mockMarkupWriter();


        expect(logger.isTraceEnabled(TapestryMarkers.RENDER_COMMANDS)).andReturn(false);
        expect(logger.isDebugEnabled()).andReturn(true);


        logger.error("Render queue error in FailedCommand: Oops.", t);

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    }


    @Test
    public void remove_while_rendering()
    {
        MarkupWriter writer = new MarkupWriterImpl(new XMLMarkupModel());


        writer.element("ul");


        for (int i = 0; i < 4; i++)
        {
            Element e = writer.element("li");


            if (i != 2)
            {
                writer.write(String.valueOf(i));
            }


            writer.end();


            if (e.getChildren().isEmpty())
            {
                e.remove();
            }
        }


        writer.end();


        assertEquals(writer.toString(), "<?xml version=\"1.0\"?>\n" +
                "<ul><li>0</li><li>1</li><li>3</li></ul>");
    }

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    @Test(dataProvider = "nyi")
    public void render_queue_commands_nyi
            (RenderCommand
                    rc)
    {
        MarkupWriter writer = mockMarkupWriter();
        RenderQueue queue = mockRenderQueue();


        try
        {
            new CompositeRenderCommand(new RenderCommand[] {rc}).render(writer, queue);

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    @Test
    public void attribute()
    {
        ComponentInstantiatorSource source = mockComponentInstantiatorSource();
        ComponentClassResolver resolver = mockComponentClassResolver();
        MarkupWriter writer = new MarkupWriterImpl(xmlModel);
        Location l = mockLocation();
        RenderQueue queue = mockRenderQueue();


        replay();


        PageElementFactory factory = new PageElementFactoryImpl(source, resolver, null, null, null);
        AttributeToken token = new AttributeToken(null, "name", "value", l);


        RenderCommand element = factory.newAttributeElement(null, token);


        writer.element("root");


        element.render(writer, queue);


        verify();


        assertEquals(writer.toString(), "<?xml version=\"1.0\"?>\n<root name=\"value\"/>");
    }

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