org.wso2.carbon.ui

Class JspServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.wso2.carbon.ui.JspServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

Direct Known Subclasses:

TilesJspServlet

public class JspServlet
extends javax.servlet.http.HttpServlet

JSPServlet wraps the Apache Jasper Servlet making it appropriate for running in an OSGi environment under the Http Service. The Jasper JSPServlet makes use of the Thread Context Classloader to support compile and runtime of JSPs and to accommodate running in an OSGi environment, a Bundle is used to provide the similar context normally provided by the webapp.

The Jasper Servlet will search the ServletContext to find JSPs, tag library descriptors, and additional information in the web.xml as per the JSP 2.0 specification. In addition to the ServletContext this implementation will search the bundle (but not attached fragments) for matching resources in a manner consistent with the Http Service's notion of a resource. By using alias and bundleResourcePath the JSP lookup should be in line with the resource mapping specified in {102.4} of the OSGi HttpService.

TLD discovery is slightly different, to clarify it occurs in one of three ways:

1. declarations found in /WEB-INF/web.xml (found either on the bundleResourcePath in the bundle or in the ServletContext)
2. tld files found under /WEB-INF (found either on the bundleResourcePath in the bundle or in the ServletContext)
3. tld files found in jars on the Bundle-Classpath (see org.eclipse.equinox.internal.jsp.jasper.JSPClassLoader)

Other than the setting and resetting of the thread context classloader and additional resource lookups in the bundle the JSPServlet is behaviourally consistent with the JSP 2.0 specification and regular Jasper operation.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	JspServlet.ServletConfigAdaptor
class	JspServlet.ServletContextAdaptor

Constructor Summary

Constructors

Constructor and Description
JspServlet(org.osgi.framework.Bundle bundle, UIResourceRegistry uiResourceRegistry)
JspServlet(org.osgi.framework.Bundle bundle, UIResourceRegistry uiResourceRegistry, String alias)

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy()
javax.servlet.ServletConfig	getServletConfig()
String	getServletInfo()
void	init(javax.servlet.ServletConfig config)
void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletContext, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

JspServlet

public JspServlet(org.osgi.framework.Bundle bundle,
          UIResourceRegistry uiResourceRegistry,
          String alias)

JspServlet

public JspServlet(org.osgi.framework.Bundle bundle,
          UIResourceRegistry uiResourceRegistry)

Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Servlet

Overrides:

destroy in class javax.servlet.GenericServlet

service

public void service(javax.servlet.http.HttpServletRequest request,
           javax.servlet.http.HttpServletResponse response)
             throws javax.servlet.ServletException,
                    IOException

Overrides:

service in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

getServletConfig

public javax.servlet.ServletConfig getServletConfig()

Specified by:

getServletConfig in interface javax.servlet.Servlet

Overrides:

getServletConfig in class javax.servlet.GenericServlet

getServletInfo

public String getServletInfo()

Specified by:

getServletInfo in interface javax.servlet.Servlet

Overrides:

getServletInfo in class javax.servlet.GenericServlet