Examples of com.volantis.mcs.context.MarinerPageContext

com.volantis.mcs.context.MarinerPageContext
Provides methods and instance variables that are applicable to the page associated with the current request. Every requested page will generate a new MarinerPageContext object.

The top level (first) canvas with the request will initialise the top level stacks and global objects such as the styling engine within the MarinerPageContext.

An included canvas will push its status onto the various stacks held within the MarinerPageContext and remove those from the stack on completion of that canvases rendering.

If this page is being rendered inside a region then the DeviceLayoutContext is added to the RegionInstance of the including region instead of being released here.
An outOfContextInclusion is a page which was created in either a servlet, or a JSP page but which was not initialised by a canvas and so limits the information which can be inherited

Refactoring

This class has grown quite substantially since it was first created and has reached the point where it is becoming quite unmanageable. It has 2 distinct but related uses. As the internal request context, and the canvas context. It would be better if this was split into a couple of different related classes each of which is geared towards the different use made of it. This would have significant savings in terms of wasted space.
Obviously refactoring can introduce bugs so it must be done with great care and even greater understanding of the uses made of it as it will have a wide impact on the code. @mock.generate

    protected final int exprElementStart(
            MarinerRequestContext context,
            PAPIAttributes papiAttributes)
            throws PAPIException {


        MarinerPageContext pageContext
                = ContextInternals.getMarinerPageContext(context);


        BlockAttributes attributes = (BlockAttributes) papiAttributes;


        // Try and find the pane with the specified name, if it could not be
        // found then return and skip the element body.
        String paneName = attributes.getPane();
        if (paneName != null) {
            FormatReference formatRef =
                    FormatReferenceParser.parsePane(paneName, pageContext);
            Pane pane = pageContext.getPane(formatRef.getStem());
            NDimensionalIndex paneIndex = formatRef.getIndex();


            if (pane == null) {
                skipped = true;
                return SKIP_ELEMENT_BODY;
            }


            paneInstance = (AbstractPaneInstance)
                    pageContext.getFormatInstance(pane, paneIndex);
            if (paneInstance.ignore()) {
                skipped = true;
                return SKIP_ELEMENT_BODY;
            }


            pageContext.pushContainerInstance(paneInstance);
        } else if (pageContext.getCurrentPane() == null) {
            if (pageContext.getEnclosingRegionInstance() == null) {
                // this element doesn't have a pane specified and the pane and
                // region stacks are empty. This is not allowed.
                throw new PAPIException(
                        exceptionLocalizer.format("pane-name-not-found"));
            }
        }


        // Push this element.
        pageContext.pushElement(this);


        return elementStartImpl(context, attributes);
    }

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        if (skipped) {
            return CONTINUE_PROCESSING;
        }


        MarinerPageContext pageContext
                = ContextInternals.getMarinerPageContext(context);


        // Pop this element.
        pageContext.popElement(this);


        int result = elementEndImpl(context,
                (BlockAttributes) papiAttributes);


        if (paneInstance != null) {
            pageContext.popContainerInstance(paneInstance);
        }


        return result;
    }

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    public int styleElementStart(
            MarinerRequestContext context,
            PAPIAttributes papiAttributes)
            throws PAPIException {


        MarinerPageContext pageContext =
                ContextInternals.getMarinerPageContext(context);
        SelectAttributes attributes = (SelectAttributes) papiAttributes;
        Precept precept = Precept.MATCH_FIRST;
        Value expr = BooleanValue.TRUE;


        if (attributes.getPrecept() != null) {
            precept = Precept.literal(attributes.getPrecept());


            if (precept == null) {
                throw new PAPIException(exceptionLocalizer.format(
                        "unrecognized-precept-value",
                        attributes.getPrecept()));
            }
        }


        if (attributes.getExpr() != null) {
            ExpressionContext expressionContext =
                    ContextInternals.getEnvironmentContext(context).
                            getExpressionContext();


            try {
                expr = expressionContext.getFactory().
                        createExpressionParser().
                        parse(attributes.getExpr()).evaluate(expressionContext);
            } catch (ExpressionException e) {
                throw new PAPIException(e);
            }
        }


        pageContext.pushSelectState(new SelectState(precept, expr));


        return PROCESS_ELEMENT_BODY;
    }

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    // javadoc inherited
    public int styleElementEnd(
            MarinerRequestContext context,
            PAPIAttributes papiAttributes) throws PAPIException {


        MarinerPageContext pageContext =
                ContextInternals.getMarinerPageContext(context);
        pageContext.popSelectState();


        return CONTINUE_PROCESSING;
    }

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            tabsRenderer.renderOpen(
                    getProtocol(context), 
                    (WidgetAttributes)protocolAttributes);
            
            MarinerPageContext pageContext = getPageContext(context);        


            //create anonymous layout for tab's contents
            contentsRegionInstance = createAnonymousRegion(pageContext);


            //create anonymous layout for tab's labels

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        throws DissectionException {


        RuntimeDissectionContext runtimeDissectionContext
            = (RuntimeDissectionContext) dissectionContext;


        MarinerPageContext context
            = runtimeDissectionContext.getMarinerPageContext();


        int currentIndex = context.getFragmentationIndex();


        // Generate the value of the request parameter.
        String value
            = PageGenerationCache.makeShardChangeSpecifier(currentIndex,
                                                           changeIndex);

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        throws DissectionException {


        RuntimeDissectionContext runtimeDissectionContext
            = (RuntimeDissectionContext) dissectionContext;


        MarinerPageContext context
            = runtimeDissectionContext.getMarinerPageContext();


        return makeURL(context, documentURL, LARGE_FRAGMENTATION_SPECIFIER);
    }

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        final VolantisProtocol protocol = getProtocol();


        MethodInvoker invoker = new MethodInvoker() {
            public void invoke() throws Exception {
                if (protocol instanceof DOMProtocol) {
                    MarinerPageContext context = protocol.getMarinerPageContext();
                    FormInstance formInstance = (FormInstance) context.
                            getFormatInstance(attributes.getForm(), NDimensionalIndex.ZERO_DIMENSIONS);
                    ((DOMOutputBuffer) formInstance.getContentBuffer(true)).
                            saveInsertionPoint();
                }
                protocol.writeOpenForm(attributes);

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    public void createPackage(MarinerRequestContext context,
                              PackageBodySource bodySource,
                              Object bodyContext)
        throws PackagingException {
        MarinerPageContext pageContext =
            ContextInternals.getMarinerPageContext(context);


        // Construct the MIME multipart package
        MimeMultipart pkg = new MimeMultipart();

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                new AbstractPackageBodyOutput() {
                    public OutputStream getRealOutputStream() {
                        return stream;
                    }
                    public Writer getRealWriter() {
                        MarinerPageContext pageContext =
                                ContextInternals.getMarinerPageContext(
                                        requestContext);
                        Encoding charsetEncoding =
                                pageContext.getCharsetEncoding();
                        if (charsetEncoding == null) {
                            throw new RuntimeException(
                                "No charset found, unable to generate page");
                        }
                        return new CharsetEncodingWriter(

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Examples of com.volantis.mcs.context.MarinerPageContext

Refactoring

Related Classes of com.volantis.mcs.context.MarinerPageContext