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ilog.webui.dhtml
Class IlxWResourceManager

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          ilog.webui.dhtml.IlxWResourceManager

All Implemented Interfaces:

ilog.webui.dhtml.IlxWConstants, Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class IlxWResourceManager
extends javax.servlet.http.HttpServlet
implements ilog.webui.dhtml.IlxWConstants

Resource manager servlet. The resource manager servlet is in charge of loading resources (.gif, .jpg, .js, and so on) from the client. The resource description is given as a set of request parameters which will be interpreted by the service method of this servlet.

A resource manager servlet can be registered in your web application in order to optimize the resource loading. Actually, if no resource manager is registered in your Web application, the framework will automatically generate a URL calling the controller servlet with a set of parameters which will be forwarded to the resource manager servlet.
To avoid this forward and reduce the size of the generated URLs, you can register your own resource manager in the deployment descriptor (WEB-INF/web.xml) of your application. For example, you may define a resource manager servlet and put it in the /classes of your web application.

   package mypackage;
   public class MyResourceManager extends IlxWResourceManager {
     // do nothing, simply redefine the servlet so that it is loaded
     // by the class loader of the Web Application.
     // Actually with some web servers, a servlet must always be a part of
     // the classes of the web application.
   }
 

And then, you will add the following lines to your web.xml file:

 <context-param>
   <param-name>ilog.webui.dhtml.resource_manager_path</param-name>
   <param-value>/_res</param-value>
 </context-param>
 ...
 <servlet>
   <servlet-name>MyResourceManager</servlet-name>
   <display-name>MyResourceManager</display-name>
   <description>Resource manager servlet</description>
   <servlet-class>mypackage.MyResourceManager</servlet-class>
 </servlet>
 ...
 <servlet-mapping>
  <servlet-name>MyResourceManager</servlet-name>
  <url-pattern>/_res/*</url-pattern>
 </servlet-mapping>
 

See Also:

IlxWController, Serialized Form

Constructor Summary

IlxWResourceManager()

Method Summary

javax.servlet.ServletContext	getServletContext()
void	service(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	setServletContext(javax.servlet.ServletContext context)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IlxWResourceManager

public IlxWResourceManager()

Method Detail

getServletContext

public javax.servlet.ServletContext getServletContext()

Specified by:

getServletContext in interface javax.servlet.ServletConfig

Overrides:

getServletContext in class javax.servlet.GenericServlet

setServletContext

public void setServletContext(javax.servlet.ServletContext context)

service

public void service(javax.servlet.http.HttpServletRequest req,
                    javax.servlet.http.HttpServletResponse resp)
             throws IOException,
                    javax.servlet.ServletException

Overrides:

service in class javax.servlet.http.HttpServlet

Throws:

IOException

javax.servlet.ServletException