public void encodeBegin()

in empire-db-jsf2/src/main/java/org/apache/empire/jsf2/components/LinkTag.java [131:217]
78 lines of code
12 McCabe index (conditional complexity)

    public void encodeBegin(FacesContext context)
        throws IOException
    {
        // add label and input components when the view is loaded for the first time
        super.encodeBegin(context);
        
        // begin
        helper.encodeBegin();
        if (isLinkDisabled())
        {   // render disabled
            ResponseWriter writer = context.getResponseWriter();
            Object linkValue = getLinkValue(helper.hasColumn());
            this.disabledTagName = writeStartElement(writer);
            this.encodeLinkChildren = isEncodeLinkChildren(linkValue); 
            if (!encodeLinkChildren)
            {   writer.write(StringUtils.toString(linkValue, ""));
                writer.endElement(this.disabledTagName);
            }
        }
        else
        {   // Add component
            HtmlOutcomeTargetLink linkComponent = null;
            if (getChildCount() > 0)
            {
                UIComponent c = getChildren().get(0);
                if (c instanceof HtmlOutcomeTargetLink)
                {   // reuse
                    linkComponent = (HtmlOutcomeTargetLink)c;
                    helper.restoreComponentId(linkComponent);
                    // check image
                    if (linkComponent.getChildCount()>0)
                    {   // Check HtmlGraphicImage
                        int last = linkComponent.getChildCount()-1;
                        UIComponent lcc = linkComponent.getChildren().get(last);
                        if (lcc instanceof HtmlGraphicImage)
                            helper.restoreComponentId(lcc);
                    }
                }
                else
                {   // Something's wrong here?
                    log.info("INFO: Unexpected child node for {}! Child item type is {}.", getClass().getName(), c.getClass().getName());
                    // Check facetComponent
                    UIPanel facetComponent = (UIPanel)getFacets().get(UIComponent.COMPOSITE_FACET_NAME);
                    if (facetComponent==null)
                    {
                        log.warn("WARN: component's facetComponent has not been set! Using Default (javax.faces.Panel).");
                        log.warn("Problem might be related to Mojarra's state context saving for dynamic components. See com.sun.faces.context.StateContext.java:AddRemoveListener");
                        facetComponent = (UIPanel)context.getApplication().createComponent("javax.faces.Panel");
                        facetComponent.setRendererType("javax.faces.Group");
                        getFacets().put(UIComponent.COMPOSITE_FACET_NAME, facetComponent);
                    }
                }    
            }
            if (linkComponent == null)
            {   try {
                    creatingComponents = true;
                    linkComponent = createOutcomeTargetLink(context);
                    this.getChildren().add(0, linkComponent);
                    helper.saveComponentId(linkComponent);
                    // encode image
                    String imagePath = helper.getTagAttributeString("image");
                    if (StringUtils.isNotEmpty(imagePath))
                    {   // Create image
                        HtmlGraphicImage img = encodeImage(context, linkComponent, imagePath);
                        linkComponent.getChildren().add(img);
                        helper.saveComponentId(linkComponent);
                    }    
                    // done
                } finally {
                    creatingComponents = false;
                }
            }
            // set params
            setLinkProperties(linkComponent);
            addOrSetParams(linkComponent);
            // encode link
            this.encodeLinkChildren = isEncodeLinkChildren(linkComponent.getChildCount()>0 ? null : linkComponent.getValue());
            if (this.encodeLinkChildren)
                linkComponent.encodeBegin(context);
            else
            {   // default rendering (no children)
                linkComponent.setRendered(true);
                encodeLinkComponent(context, linkComponent);
                linkComponent.setRendered(false); // Don't render twice!
            }
        }
    }