io.fabric8.gateway.servlet

Class ProxyServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

io.fabric8.gateway.servlet.ProxyServlet

All Implemented Interfaces:

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

public abstract class ProxyServlet
extends javax.servlet.http.HttpServlet

Based on code from http://edwardstx.net/2010/06/http-proxy-servlet/

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ProxyServlet()

Method Summary

Methods

Modifier and Type	Method and Description
protected ProxyDetails	createProxyDetails(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse)
void	doDelete(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) Performs an HTTP DELETE request
void	doGet(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) Performs an HTTP GET request
protected void	doOptions(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse)
void	doPost(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) Performs an HTTP POST request
void	doPut(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) Performs an HTTP PUT request
HttpMappingRuleResolver	getResolver()
String	getServletInfo()
void	init(javax.servlet.ServletConfig config) Initialize the ProxyServlet
protected abstract void	loadRuleBase(javax.servlet.ServletConfig config, HttpProxyRuleBase ruleBase) load the mapping rules from the servlet context; could use a Java DSL, the XML DSL or load from a database
protected void	noMappingFound(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse)

Methods inherited from class javax.servlet.http.HttpServlet

doHead, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, 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

ProxyServlet

public ProxyServlet()

Method Detail

init

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

Initialize the ProxyServlet

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Parameters:

config - The Servlet configuration passed in by the servlet container

Throws:

javax.servlet.ServletException

loadRuleBase

protected abstract void loadRuleBase(javax.servlet.ServletConfig config,
                HttpProxyRuleBase ruleBase)
                              throws javax.servlet.ServletException

load the mapping rules from the servlet context; could use a Java DSL, the XML DSL or load from a database

Throws:

javax.servlet.ServletException

doGet

public void doGet(javax.servlet.http.HttpServletRequest httpServletRequest,
         javax.servlet.http.HttpServletResponse httpServletResponse)
           throws IOException,
                  javax.servlet.ServletException

Performs an HTTP GET request

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

httpServletRequest - The HttpServletRequest object passed in by the servlet engine representing the client request to be proxied

httpServletResponse - The HttpServletResponse object by which we can send a proxied response to the client

Throws:

IOException

javax.servlet.ServletException

doPost

public void doPost(javax.servlet.http.HttpServletRequest httpServletRequest,
          javax.servlet.http.HttpServletResponse httpServletResponse)
            throws IOException,
                   javax.servlet.ServletException

Performs an HTTP POST request

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

httpServletRequest - The HttpServletRequest object passed in by the servlet engine representing the client request to be proxied

httpServletResponse - The HttpServletResponse object by which we can send a proxied response to the client

Throws:

IOException

javax.servlet.ServletException

doPut

public void doPut(javax.servlet.http.HttpServletRequest httpServletRequest,
         javax.servlet.http.HttpServletResponse httpServletResponse)
           throws IOException,
                  javax.servlet.ServletException

Performs an HTTP PUT request

Overrides:

doPut in class javax.servlet.http.HttpServlet

Parameters:

httpServletRequest - The HttpServletRequest object passed in by the servlet engine representing the client request to be proxied

httpServletResponse - The HttpServletResponse object by which we can send a proxied response to the client

Throws:

IOException

javax.servlet.ServletException

doDelete

public void doDelete(javax.servlet.http.HttpServletRequest httpServletRequest,
            javax.servlet.http.HttpServletResponse httpServletResponse)
              throws IOException,
                     javax.servlet.ServletException

Performs an HTTP DELETE request

Overrides:

doDelete in class javax.servlet.http.HttpServlet

Parameters:

httpServletRequest - The HttpServletRequest object passed in by the servlet engine representing the client request to be proxied

httpServletResponse - The HttpServletResponse object by which we can send a proxied response to the client

Throws:

IOException

javax.servlet.ServletException

doOptions

protected void doOptions(javax.servlet.http.HttpServletRequest httpServletRequest,
             javax.servlet.http.HttpServletResponse httpServletResponse)
                  throws javax.servlet.ServletException,
                         IOException

Overrides:

doOptions in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

createProxyDetails

protected ProxyDetails createProxyDetails(javax.servlet.http.HttpServletRequest httpServletRequest,
                              javax.servlet.http.HttpServletResponse httpServletResponse)

noMappingFound

protected void noMappingFound(javax.servlet.http.HttpServletRequest httpServletRequest,
                  javax.servlet.http.HttpServletResponse httpServletResponse)
                       throws IOException

Throws:

IOException

getServletInfo

public String getServletInfo()

Specified by:

getServletInfo in interface javax.servlet.Servlet

Overrides:

getServletInfo in class javax.servlet.GenericServlet

getResolver

public HttpMappingRuleResolver getResolver()