org.geomajas.dojo.server.servlet
Class JsonServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.geomajas.dojo.server.servlet.JsonServlet

All Implemented Interfaces:

com.metaparadigm.jsonrpc.ErrorInvocationCallback, com.metaparadigm.jsonrpc.InvocationCallback, Serializable, EventListener, javax.servlet.Servlet, javax.servlet.ServletConfig, org.springframework.context.ApplicationListener<org.springframework.context.event.ContextRefreshedEvent>

public class JsonServlet
extends javax.servlet.http.HttpServlet
implements com.metaparadigm.jsonrpc.ErrorInvocationCallback, org.springframework.context.ApplicationListener<org.springframework.context.event.ContextRefreshedEvent>

This servlet handles JSON-RPC requests over HTTP and hands them to a JSONRPCBridge instance registered in the HttpSession.

By default, the GGISJSONServlet places an instance of the JSONRPCBridge object is automatically in the HttpSession object registered under the attribute "JSONRPCBridge".

The following can be added to your web.xml to export the servlet under the URI "/JSON-RPC"

<servlet> <servlet-name>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-name> <servlet-class>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-name> <url-pattern>/JSON-RPC</url-pattern> </servlet-mapping>

Author:

Jan De Moerloose, Pieter De Graef, Joachim Van der Auwera

See Also:

Serialized Form

Constructor Summary

JsonServlet()

Method Summary

void	init(javax.servlet.ServletConfig config)
void	invocationError(Object context, Object instance, Method method, Throwable error)
void	onApplicationEvent(org.springframework.context.event.ContextRefreshedEvent event)
void	postInvoke(Object context, Object instance, Method method, Object result)
void	preInvoke(Object context, Object instance, Method method, Object[] arguments)
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

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

JsonServlet

public JsonServlet()

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

onApplicationEvent

public void onApplicationEvent(org.springframework.context.event.ContextRefreshedEvent event)

Specified by:

onApplicationEvent in interface org.springframework.context.ApplicationListener<org.springframework.context.event.ContextRefreshedEvent>

service

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

Overrides:

service in class javax.servlet.http.HttpServlet

Throws:

IOException

postInvoke

public void postInvoke(Object context,
                       Object instance,
                       Method method,
                       Object result)
                throws Exception

Specified by:

postInvoke in interface com.metaparadigm.jsonrpc.InvocationCallback

Throws:

Exception

preInvoke

public void preInvoke(Object context,
                      Object instance,
                      Method method,
                      Object[] arguments)
               throws Exception

Specified by:

preInvoke in interface com.metaparadigm.jsonrpc.InvocationCallback

Throws:

Exception

invocationError

public void invocationError(Object context,
                            Object instance,
                            Method method,
                            Throwable error)

Specified by:

invocationError in interface com.metaparadigm.jsonrpc.ErrorInvocationCallback