org.eclipse.jetty.websocket

Class WebSocketServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.eclipse.jetty.websocket.WebSocketServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig, WebSocketFactory.Acceptor

public abstract class WebSocketServlet
extends HttpServlet
implements WebSocketFactory.Acceptor

Servlet to upgrade connections to WebSocket

The request must have the correct upgrade headers, else it is handled as a normal servlet request.

The initParameter "bufferSize" can be used to set the buffer size, which is also the max frame byte size (default 8192).

The initParameter "maxIdleTime" can be used to set the time in ms that a websocket may be idle before closing.

The initParameter "maxTextMessagesSize" can be used to set the size in characters that a websocket may be accept before closing.

The initParameter "maxBinaryMessagesSize" can be used to set the size in bytes that a websocket may be accept before closing.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
WebSocketServlet()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	checkOrigin(HttpServletRequest request, String origin) Checks the origin of an incoming WebSocket handshake request.
void	destroy()
void	init()
protected void	service(HttpServletRequest request, 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

Methods inherited from interface org.eclipse.jetty.websocket.WebSocketFactory.Acceptor

doWebSocketConnect

Constructor Detail

WebSocketServlet

public WebSocketServlet()

Method Detail

init

public void init()
          throws ServletException

Overrides:

init in class GenericServlet

Throws:

ServletException

See Also:

GenericServlet.init()

service

protected void service(HttpServletRequest request,
           HttpServletResponse response)
                throws ServletException,
                       IOException

Overrides:

service in class HttpServlet

Throws:

ServletException

IOException

See Also:

HttpServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

checkOrigin

public boolean checkOrigin(HttpServletRequest request,
                  String origin)

Description copied from interface: WebSocketFactory.Acceptor

Checks the origin of an incoming WebSocket handshake request.

Specified by:

checkOrigin in interface WebSocketFactory.Acceptor

Parameters:

request - the incoming HTTP upgrade request

origin - the origin URI

Returns:

boolean to indicate that the origin is acceptable.

destroy

public void destroy()

Specified by:

destroy in interface Servlet

Overrides:

destroy in class GenericServlet