org.directwebremoting.servlet.DojoDtoAllHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dwr Show documentation

DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boilerplate code between the web browser and your Java code. This version 4.0.2 works with Jakarta Servlet 4.0.2.

The newest version!

package org.directwebremoting.servlet;

import org.directwebremoting.extend.NamedConverter;
import org.directwebremoting.util.LocalUtil;

/**
 * A handler for dtoall generation requests in the Dojo module format
 * @author Mike Wilson [mikewse at hotmail dot com]
 */
public class DojoDtoAllHandler extends BaseDtoAllHandler
{
    /**
     * Generates the full dtoall script by decorating the DTO classes returned by the Remoter.
     * @return string containing dtoall script
     */
    @Override
    public String generateDtoAllScript(String contextPath, String servletPath)
    {
        DojoModule mod = new DojoModule(contextPath, servletPath, dojoDwrBaseModulePath, "dtoall");
        mod.addRequire(dojoDwrBaseModulePath, "engine");
        String engineModule = mod.expandModulePath(dojoDwrBaseModulePath, "engine");

        mod.addContent("(function() {\n");
        mod.addContent("  var c;\n");
        mod.addContent("  var addedNow = [];\n");

        // DTO class definitions
        for (String jsClassName : converterManager.getNamedConverterJavaScriptNames())
        {
            String dtoModule = mod.expandModulePath(dojoDtoBaseModulePath, jsClassName);
            mod.addContent("\n");
            mod.addContent("  dojo.provide(\"" + dtoModule + "\");\n");
            mod.addContent("  if (!" + engineModule + "._mappedClasses[\"" + jsClassName + "\"]) {\n");
            mod.addContent(remoter.generateDtoJavaScript(jsClassName, "    ", "c"));
            mod.addContent("    " + engineModule + "._mappedClasses[\"" + jsClassName + "\"] = c;\n");
            mod.addContent("    addedNow[\"" + jsClassName + "\"] = true;\n");
            mod.addContent("  }\n");
            mod.addContent("  dojo.setObject(\"" + dtoModule + "\", " + engineModule + "._mappedClasses[\"" + jsClassName + "\"]);\n");
        }

        // DTO inheritance definitions
        for (String jsClassName : converterManager.getNamedConverterJavaScriptNames())
        {
            NamedConverter namedConv = converterManager.getNamedConverter(jsClassName);
            String jsSuperClassName = namedConv.getJavascriptSuperClass();
            if (LocalUtil.hasLength(jsSuperClassName))
            {
                String classExpression = engineModule + "._mappedClasses[\"" + jsClassName + "\"]";
                String superClassExpression = engineModule + "._mappedClasses[\"" + jsSuperClassName + "\"]";
                mod.addContent("\n");
                mod.addContent("  if (addedNow[\"" + jsClassName + "\"]) {\n");
                mod.addContent(remoter.generateDtoInheritanceJavaScript("    ", classExpression, superClassExpression, engineModule + "._delegate"));
                mod.addContent("  }\n");
            }
        }

        mod.addContent("})();\n");

        return mod.toString();
    }

    /**
     * Setter for the module path that dtoall is on
     * @param modulePath the modulePath to set
     */
    public void setDojoDwrBaseModulePath(final String modulePath)
    {
        dojoDwrBaseModulePath = modulePath;
    }

    /**
     * Setter for the module path that DTO is on
     * @param modulePath the modulePath to set
     */
    public void setDojoDtoBaseModulePath(final String modulePath)
    {
        dojoDtoBaseModulePath = modulePath;
    }

    /**
     * What module path is dtoall on?
     */
    protected String dojoDwrBaseModulePath;

    /**
     * What module path are DTOs on?
     */
    protected String dojoDtoBaseModulePath;
}