org.meshy.jshotgun

Class ShotgunServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.meshy.jshotgun.ShotgunServlet

All Implemented Interfaces:

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

public class ShotgunServlet
extends javax.servlet.http.HttpServlet

A nimble code reloader for Java servlets. Before each request it checks if any class files were changed and if so reloads them and reinitializes the wrapped servlet. Classes loaded from jars are excluded so this class automatically becomes a noop in most production deployments. Starts reloading immediately in the background so most of the time there's no delay at all. You'll need away of automating the compilation but that could be anything from Eclipse's "build automatically" option to a shell script:

     while true; do inotifywait *.java; make; done
 

Concurrency safe: waits for any outstanding requests to be completed before reloading.

Author:

Alex Osborne

See Also:

jshotgun, Serialized Form

Constructor Summary

Constructors

Constructor and Description
ShotgunServlet()

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy()
void	init(javax.servlet.ServletConfig config)
javax.servlet.http.HttpServlet	loadTarget(ClassLoader classLoader)
protected 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, 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

ShotgunServlet

public ShotgunServlet()

Method Detail

service

protected 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

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

loadTarget

public javax.servlet.http.HttpServlet loadTarget(ClassLoader classLoader)
                                          throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException