com.bstek.dorado.view.ViewOutputter.java Source code

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Here is the source code for com.bstek.dorado.view.ViewOutputter.java

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/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.view;

import java.io.Writer;
import java.util.Map;

import org.apache.commons.jexl2.JexlContext;
import org.apache.commons.lang.StringUtils;

import com.bstek.dorado.config.definition.Definition;
import com.bstek.dorado.core.el.ExpressionHandler;
import com.bstek.dorado.core.io.Resource;
import com.bstek.dorado.util.proxy.BeanExtender;
import com.bstek.dorado.view.config.attachment.AttachedResourceManager;
import com.bstek.dorado.view.config.attachment.JavaScriptContent;
import com.bstek.dorado.view.config.definition.ViewConfigDefinition;
import com.bstek.dorado.view.manager.ViewConfig;
import com.bstek.dorado.view.output.OutputContext;
import com.bstek.dorado.view.output.Outputter;
import com.bstek.dorado.view.widget.ContainerOutputter;
import com.bstek.dorado.web.DoradoContext;
import com.bstek.dorado.web.DoradoContextUtils;

/**
 * 
 * 
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since Sep 19, 2008
 */
public class ViewOutputter extends ContainerOutputter {
    protected Outputter childrenComponentOutputter;
    protected Outputter viewDataTypesOutputter;
    private AttachedResourceManager javaScriptResourceManager;
    private AttachedResourceManager styleSheetResourceManager;

    public void setChildrenComponentOutputter(Outputter childrenComponentOutputter) {
        this.childrenComponentOutputter = childrenComponentOutputter;
    }

    public void setViewDataTypesOutputter(Outputter viewDataTypesOutputter) {
        this.viewDataTypesOutputter = viewDataTypesOutputter;
    }

    public void setJavaScriptResourceManager(AttachedResourceManager javaScriptResourceManager) {
        this.javaScriptResourceManager = javaScriptResourceManager;
    }

    public void setStyleSheetResourceManager(AttachedResourceManager styleSheetResourceManager) {
        this.styleSheetResourceManager = styleSheetResourceManager;
    }

    public ViewOutputter() {
        setUsePrototype(true);
    }

    public void outputView(View view, OutputContext context) throws Exception {
        View originalView = context.getCurrentView();
        context.setCurrentView(view);

        DoradoContext doradoContext = DoradoContext.getCurrent();

        JexlContext jexlContext = null;
        Definition resourceRelativeDefinition = null;
        ViewConfig viewConfig = view.getViewConfig();
        if (viewConfig != null) {
            Map<String, Object> viewContext = DoradoContextUtils.getViewContextByBindingObject(doradoContext,
                    viewConfig);
            DoradoContextUtils.pushNewViewContext(doradoContext, viewContext);

            ViewConfigDefinition viewConfigDefinition = (ViewConfigDefinition) BeanExtender
                    .getExProperty(viewConfig, "viewConfigDefinition");
            if (viewConfigDefinition != null) {
                ExpressionHandler expressionHandler = (ExpressionHandler) doradoContext
                        .getServiceBean("expressionHandler");
                jexlContext = expressionHandler.getJexlContext();
                resourceRelativeDefinition = (Definition) jexlContext
                        .get(ViewConfigDefinition.RESOURCE_RELATIVE_DEFINITION);
                jexlContext.set(ViewConfigDefinition.RESOURCE_RELATIVE_DEFINITION, viewConfigDefinition);
            }
        }

        Writer writer = context.getWriter();
        context.createJsonBuilder();
        try {
            writer.append("var view=");
            super.output(view, context);
            writer.append(";\n");

            writer.append("function f(view){").append("view.set(\"children\",");
            childrenComponentOutputter.output(view.getChildren(), context);
            writer.append(");");

            String javaScriptFiles = view.getJavaScriptFile();
            if (StringUtils.isNotEmpty(javaScriptFiles)) {
                for (String file : StringUtils.split(javaScriptFiles, ";,")) {
                    if (StringUtils.isNotEmpty(file)) {
                        Resource resource = doradoContext.getResource(file);
                        JavaScriptContent content = (JavaScriptContent) javaScriptResourceManager
                                .getContent(resource);
                        if (content.getIsController()) {
                            javaScriptResourceManager.outputContent(context, content);
                        } else {
                            context.addJavaScriptContent(content);
                        }
                    }
                }
            }

            String styleSheetFiles = view.getStyleSheetFile();
            if (StringUtils.isNotEmpty(styleSheetFiles)) {
                for (String file : StringUtils.split(styleSheetFiles, ",;")) {
                    if (StringUtils.isNotEmpty(file)) {
                        Resource resource = doradoContext.getResource(file);
                        Object content = styleSheetResourceManager.getContent(resource);
                        context.addStyleSheetContent(content);
                    }
                }
            }

            writer.append("}\n");

            // DataType
            outputIncludeDataTypes(view, context);

            String exPackages = view.getPackages();
            if (StringUtils.isNotEmpty(exPackages)) {
                for (String pkg : StringUtils.split(exPackages, ",;")) {
                    if (StringUtils.isNotEmpty(pkg)) {
                        context.addDependsPackage(pkg);
                    }
                }
            }

            writer.append("f(view);\n");
        } finally {
            context.restoreJsonBuilder();
            context.setCurrentView(originalView);

            if (jexlContext != null) {
                jexlContext.set(ViewConfigDefinition.RESOURCE_RELATIVE_DEFINITION, resourceRelativeDefinition);
            }

            if (viewConfig != null) {
                DoradoContextUtils.popViewContext(doradoContext);
            }
        }
    }

    @Override
    public void output(Object object, OutputContext context) throws Exception {
        Writer writer = context.getWriter();
        writer.append("(function(){\n");
        outputView((View) object, context);
        writer.append("return view;\n").append("})()");
    }

    /**
     * ?DataType
     */
    protected void outputIncludeDataTypes(View view, OutputContext context) throws Exception {
        Writer writer = context.getWriter();
        writer.write("view.get(\"dataTypeRepository\").parseJsonData(");
        viewDataTypesOutputter.output(view, context);
        writer.write(");\n");
    }
}