net.sourceforge.hiveutils.web
Class HiveMindRegistryPublishFilter

java.lang.Object
  net.sourceforge.hiveutils.web.HiveMindRegistryPublishFilter

All Implemented Interfaces:

javax.servlet.Filter

public class HiveMindRegistryPublishFilter
extends java.lang.Object
implements javax.servlet.Filter

Servlet Filter that allows retrieval of HiveMind Registry from any code location executed in the current thread without needing access to the ServletRequest.

It should be put in second position right after the standard HiveMindFilter.

It copies the current Registry to a ThreadLocal, making it accessible through a static method with no argument.

You should use this Filter only if you have some code that needs to access HiveMind Registry, but cannot have access to the current ServletRequest, eg if you use SecurityFilter (from Max Cooper), and your SecurityRealm needs to access the Registry (generally it would need to).

Author:

Jean-Francois Poilpret

Field Summary

protected static java.lang.ThreadLocal<org.apache.hivemind.Registry>

_localRegistry

Constructor Summary

HiveMindRegistryPublishFilter()

Method Summary

void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
static org.apache.hivemind.Registry	getRegistry() Gets the HiveMind Registry assigned to the current thread.
void	init(javax.servlet.FilterConfig config)

Methods inherited from class java.lang.Object

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

Field Detail

_localRegistry

protected static java.lang.ThreadLocal<org.apache.hivemind.Registry> _localRegistry

Constructor Detail

HiveMindRegistryPublishFilter

public HiveMindRegistryPublishFilter()

Method Detail

getRegistry

public static org.apache.hivemind.Registry getRegistry()

Gets the HiveMind Registry assigned to the current thread. No argument is required.

init

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

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws java.io.IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

java.io.IOException

javax.servlet.ServletException