modelscreenwidget.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

            // render sub-widgets
            renderSubWidgetsString(this.subWidgets, writer, context, screenStringRenderer);
        }

        public String rawString() {
            return "<decorator-section name=\"" + this.name + "\">";
        }
    }
    
    public static class DecoratorSectionInclude extends ModelScreenWidget {
        protected String name;
        
        public DecoratorSectionInclude(ModelScreen modelScreen, Element decoratorSectionElement) {
            super(modelScreen, decoratorSectionElement);
            this.name = decoratorSectionElement.getAttribute("name");
        }

        public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) throws GeneralException {
            SectionsRenderer sections = (SectionsRenderer) context.get("sections");
            // for now if sections is null, just log a warning; may be permissible to make the screen for flexible
            if (sections == null) {
                Debug.logWarning("In decorator-section-include could not find sections object in the context, not rendering section with name [" + this.name + "]", module);
            } else {
                sections.render(this.name);
            }
        }

        public String rawString() {
            return "<decorator-section-include name=\"" + this.name + "\">";
        }
    }
    
    public static class Label extends ModelScreenWidget {
        protected FlexibleStringExpander textExdr;
        
        protected FlexibleStringExpander idExdr;
        protected FlexibleStringExpander styleExdr;
        
        public Label(ModelScreen modelScreen, Element labelElement) {
            super(modelScreen, labelElement);

            // put the text attribute first, then the pcdata under the element, if both are there of course
            String textAttr = UtilFormatOut.checkNull(labelElement.getAttribute("text"));
            String pcdata = UtilFormatOut.checkNull(UtilXml.elementValue(labelElement));
            this.textExdr = new FlexibleStringExpander(textAttr + pcdata);

            this.idExdr = new FlexibleStringExpander(labelElement.getAttribute("id"));
            this.styleExdr = new FlexibleStringExpander(labelElement.getAttribute("style"));
        }

        public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) {
            try {
                screenStringRenderer.renderLabel(writer, context, this);
            } catch (IOException e) {
                String errMsg = "Error rendering label in screen named [" + this.modelScreen.getName() + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            }
        }
        
        public String getText(Map context) {
            return this.textExdr.expandString(context);
        }
        
        public String getId(Map context) {
            return this.idExdr.expandString(context);
        }
        
        public String getStyle(Map context) {
            return this.styleExdr.expandString(context);
        }
        
        public String rawString() {
            return "<label id=\"" + this.idExdr.getOriginal() + "\" style=\"" + this.styleExdr.getOriginal() + "\" text=\"" + this.textExdr.getOriginal() + "\"/>";
        }
    }

    public static class Form extends ModelScreenWidget {
        protected FlexibleStringExpander nameExdr;
        protected FlexibleStringExpander locationExdr;
        protected FlexibleStringExpander shareScopeExdr;
        
        public Form(ModelScreen modelScreen, Element formElement) {
            super(modelScreen, formElement);

            this.nameExdr = new FlexibleStringExpander(formElement.getAttribute("name"));
            this.locationExdr = new FlexibleStringExpander(formElement.getAttribute("location"));
            this.shareScopeExdr = new FlexibleStringExpander(formElement.getAttribute("share-scope"));
        }

        public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) {
            boolean protectScope = !shareScope(context);
            if (protectScope) {
                if (!(context instanceof MapStack)) {
                    context = MapStack.create(context);
                }
                ((MapStack) context).push();
            }
            
            String name = this.getName(context);
            String location = this.getLocation(context);
            ModelForm modelForm = null;
            try {
                modelForm = FormFactory.getFormFromLocation(this.getLocation(context), this.getName(context), this.modelScreen.getDelegator(context), this.modelScreen.getDispatcher(context));
            } catch (IOException e) {
                String errMsg = "Error rendering included form named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            } catch (SAXException e) {
                String errMsg = "Error rendering included form named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            } catch (ParserConfigurationException e) {
                String errMsg = "Error rendering included form named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            }
            
            // try finding the formStringRenderer by name in the context in case one was prepared and put there
            FormStringRenderer formStringRenderer = (FormStringRenderer) context.get("formStringRenderer");
            // if there was no formStringRenderer put in place, now try finding the request/response in the context and creating a new one
            if (formStringRenderer == null) {
                HttpServletRequest request = (HttpServletRequest) context.get("request");
                HttpServletResponse response = (HttpServletResponse) context.get("response");
                if (request != null && response != null) {
                    formStringRenderer = new HtmlFormRenderer(request, response);
                }
            }
            // still null, throw an error
            if (formStringRenderer == null) {
                throw new IllegalArgumentException("Could not find a formStringRenderer in the context, and could not find HTTP request/response objects need to create one.");
            }
            
            //Debug.logInfo("before renderFormString, context:" + context, module);
            StringBuffer renderBuffer = new StringBuffer();
            modelForm.renderFormString(renderBuffer, context, formStringRenderer);
            try {
                writer.write(renderBuffer.toString());
            } catch (IOException e) {
                String errMsg = "Error rendering included form named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            }

            if (protectScope) {
                ((MapStack) context).pop();
            }
        }
        
        public String getName(Map context) {
            return this.nameExdr.expandString(context);
        }
        
        public String getLocation(Map context) {
            return this.locationExdr.expandString(context);
        }
        
        public boolean shareScope(Map context) {
            String shareScopeString = this.shareScopeExdr.expandString(context);
            // defaults to false, so anything but true is false
            return "true".equals(shareScopeString);
        }

        public String rawString() {
            return "<include-form name=\"" + this.nameExdr.getOriginal() + "\" location=\"" + this.locationExdr.getOriginal() + "\" share-scope=\"" + this.shareScopeExdr.getOriginal() + "\"/>";
        }
    }

    public static class Tree extends ModelScreenWidget {
        protected FlexibleStringExpander nameExdr;
        protected FlexibleStringExpander locationExdr;
        protected FlexibleStringExpander shareScopeExdr;
        
        public Tree(ModelScreen modelScreen, Element treeElement) {
            super(modelScreen, treeElement);

            this.nameExdr = new FlexibleStringExpander(treeElement.getAttribute("name"));
            this.locationExdr = new FlexibleStringExpander(treeElement.getAttribute("location"));
            this.shareScopeExdr = new FlexibleStringExpander(treeElement.getAttribute("share-scope"));
        }

        public void renderWidgetString(Writer writer, Map context, ScreenStringRenderer screenStringRenderer) throws GeneralException {
            boolean protectScope = !shareScope(context);
            if (protectScope) {
                if (!(context instanceof MapStack)) {
                    context = MapStack.create(context);
                }
                ((MapStack) context).push();
            }
            
            String name = this.getName(context);
            String location = this.getLocation(context);
            ModelTree modelTree = null;
            try {
                modelTree = TreeFactory.getTreeFromLocation(this.getLocation(context), this.getName(context), this.modelScreen.getDelegator(context), this.modelScreen.getDispatcher(context));
            } catch (IOException e) {
                String errMsg = "Error rendering included tree named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            } catch (SAXException e) {
                String errMsg = "Error rendering included tree named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            } catch (ParserConfigurationException e) {
                String errMsg = "Error rendering included tree named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            }
            
            // try finding the treeStringRenderer by name in the context in case one was prepared and put there
            TreeStringRenderer treeStringRenderer = (TreeStringRenderer) context.get("treeStringRenderer");
            // if there was no treeStringRenderer put in place, now try finding the request/response in the context and creating a new one
            if (treeStringRenderer == null) {
                treeStringRenderer = new HtmlTreeRenderer();
                /*
                String renderClassStyle = modelTree.getRenderStyle();
                if (UtilValidate.isNotEmpty(renderClassStyle) && renderClassStyle.equals("simple")) 
                    treeStringRenderer = new HtmlTreeRenderer();
                else
                    treeStringRenderer = new HtmlTreeExpandCollapseRenderer();
                */ 
            }
            // still null, throw an error
            if (treeStringRenderer == null) {
                throw new IllegalArgumentException("Could not find a treeStringRenderer in the context, and could not find HTTP request/response objects need to create one.");
            }
            
            StringBuffer renderBuffer = new StringBuffer();
            modelTree.renderTreeString(renderBuffer, context, treeStringRenderer);
            try {
                writer.write(renderBuffer.toString());
            } catch (IOException e) {
                String errMsg = "Error rendering included tree named [" + name + "] at location [" + location + "]: " + e.toString();
                Debug.logError(e, errMsg, module);
                throw new RuntimeException(errMsg);
            }

            if (protectScope) {
                ((MapStack) context).pop();
            }
        }
        
        public String getName(Map context) {
            return this.nameExdr.expandString(context);
        }
        
        public String getLocation(Map context) {
            return this.locationExdr.expandString(context);
        }
        
        public boolean shareScope(Map context) {
            String shareScopeString = this.shareScopeExdr.expandString(context);
            // defaults to false, so anything but true is false
            return "true".equals(shareScopeString);
        }

        public String rawString() {
            return "<include-tree name=\"" + this.nameExdr.getOriginal() + "\" location=\"" + this.locationExdr.getOriginal() + "\" share-scope=\"" + this.shareScopeExdr.getOriginal() + "\"/>";
        }
    }

    public static class PlatformSpecific extends ModelScreenWidget {
        protected ModelScreenWidget subWidget;
        
        public PlatformSpecific(ModelScreen modelScreen, Element platformSpecificElement) {