org.riotfamily.common.web.interceptor
Class ChainedHandlerInterceptor

java.lang.Object
  org.riotfamily.common.web.interceptor.ChainedHandlerInterceptor

All Implemented Interfaces:

InitializingBean, HandlerInterceptor

public class ChainedHandlerInterceptor
extends Object
implements HandlerInterceptor, InitializingBean

HandlerInterceptor that delegates calls to a list of interceptors. Supported interceptor types are HandlerInterceptor and WebRequestInterceptor.

Since:

6.5

Author:

Felix Gnass [fgnass at neteye dot de]

See Also:

setInterceptors(List)

Constructor Summary

ChainedHandlerInterceptor()

Method Summary

protected HandlerInterceptor	adaptInterceptor(Object interceptor) Adapt the given interceptor object to the HandlerInterceptor interface.
void	afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) Delegates the call to all configured interceptors.
void	afterPropertiesSet() Calls the initInterceptors() method.
protected void	initInterceptors() Initialize the specified interceptors, adapting them where necessary.
void	postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) Delegates the call to all configured interceptors.
boolean	preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) Delegates the call to all configured interceptors.
void	setInterceptors(List<HandlerInterceptor> interceptors) Set the interceptors to apply in a chain.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChainedHandlerInterceptor

public ChainedHandlerInterceptor()

Method Detail

setInterceptors

public void setInterceptors(List<HandlerInterceptor> interceptors)

Set the interceptors to apply in a chain.

Supported interceptor types are HandlerInterceptor and WebRequestInterceptor.

Parameters:

interceptors - array of handler interceptors, or null if none

See Also:

HandlerInterceptor, WebRequestInterceptor

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Calls the initInterceptors() method.

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

initInterceptors

protected void initInterceptors()

Initialize the specified interceptors, adapting them where necessary.

See Also:

setInterceptors(java.util.List), adaptInterceptor(java.lang.Object)

adaptInterceptor

protected HandlerInterceptor adaptInterceptor(Object interceptor)

Adapt the given interceptor object to the HandlerInterceptor interface.

Supported interceptor types are HandlerInterceptor and WebRequestInterceptor. Each given WebRequestInterceptor will be wrapped in a WebRequestHandlerInterceptorAdapter. Can be overridden in subclasses.

Parameters:

interceptor - the specified interceptor object

Returns:

the interceptor wrapped as HandlerInterceptor

See Also:

HandlerInterceptor, WebRequestInterceptor, WebRequestHandlerInterceptorAdapter

preHandle

public boolean preHandle(HttpServletRequest request,
                         HttpServletResponse response,
                         Object handler)
                  throws Exception

Delegates the call to all configured interceptors. If an interceptor returns false the chain is not further processes and the method returns false itself. Otherwise true is returned after all interceptors have been called.

Specified by:

preHandle in interface HandlerInterceptor

Throws:

Exception

postHandle

public void postHandle(HttpServletRequest request,
                       HttpServletResponse response,
                       Object handler,
                       ModelAndView modelAndView)
                throws Exception

Delegates the call to all configured interceptors.

Specified by:

postHandle in interface HandlerInterceptor

Throws:

Exception

afterCompletion

public void afterCompletion(HttpServletRequest request,
                            HttpServletResponse response,
                            Object handler,
                            Exception ex)
                     throws Exception

Delegates the call to all configured interceptors.

Specified by:

afterCompletion in interface HandlerInterceptor

Throws:

Exception