org.araneaframework.http.core
Class BaseAraneaDispatcherServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.araneaframework.http.core.BaseAraneaDispatcherServlet

All Implemented Interfaces:

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

Direct Known Subclasses:

AraneaSpringDispatcherServlet

public abstract class BaseAraneaDispatcherServlet

extends javax.servlet.http.HttpServlet

Aranea's main servlet. Routes GET & POST methods to the root component's service(HttpServletRequest, HttpServletResponse) method.

Enriches the environment with objects of ServletContext and ServletConfig. They can be accessed later from the environment under the keys ServletContext.class and ServletConfig.class respectively.

Author:

"Toomas Römer"

See Also:

Serialized Form

Constructor Summary

BaseAraneaDispatcherServlet()

Method Summary

protected void	buildAlternateRootComponents() Should build all alternate root component hierarchies, if applicable.
protected abstract ServletServiceAdapterComponent	buildRootComponent() Builds the default (and in most cases only) root component of this servlet.
protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
protected void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
protected Map	getEnvironmentEntries()
protected ServletServiceAdapterComponent	getServiceAdapter(javax.servlet.http.HttpServletRequest req) Returns ServletServiceAdapterComponent that should service the given request.
protected Map	getServletEnvironmentMap()
void	init()

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseAraneaDispatcherServlet

public BaseAraneaDispatcherServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
                     javax.servlet.http.HttpServletResponse resp)
              throws javax.servlet.ServletException,
                     IOException

Throws:

javax.servlet.ServletException

IOException

doPost

protected void doPost(javax.servlet.http.HttpServletRequest req,
                      javax.servlet.http.HttpServletResponse resp)
               throws javax.servlet.ServletException,
                      IOException

Throws:

javax.servlet.ServletException

IOException

getServiceAdapter

protected ServletServiceAdapterComponent getServiceAdapter(javax.servlet.http.HttpServletRequest req)

Returns ServletServiceAdapterComponent that should service the given request. Default implementation returns component built by buildRootComponent().

Returns:

ServletServiceAdapterComponent that should service the given request

Since:

1.0.7

buildRootComponent

protected abstract ServletServiceAdapterComponent buildRootComponent()

Builds the default (and in most cases only) root component of this servlet. All the requests (GET & POST) through some root component, when no alternate root components are defined, requests will always go through the root component built here.

Returns:

default root component

buildAlternateRootComponents

protected void buildAlternateRootComponents()

Should build all alternate root component hierarchies, if applicable. Base implementation does not build any. If this is overridden, also getServiceAdapter(HttpServletRequest) should be overriden to choose the correct component hierarchy for processing the request.

Since:

1.0.7

getEnvironmentEntries

protected Map getEnvironmentEntries()

getServletEnvironmentMap

protected Map getServletEnvironmentMap()

Returns:

map with same entries as getEnvironmentEntries() plus servlet container specific entries (ServletContext, ServletConfig)

Since:

1.0.7