Package org.springframework.web.servlet.handler

Class MappedInterceptor

  • All Implemented Interfaces:
    HandlerInterceptor
    public final class MappedInterceptor
extends Object
implements HandlerInterceptor
    Contains and delegates calls to a HandlerInterceptor along with include (and optionally exclude) path patterns to which the interceptor should apply. Also provides matching logic to test if the interceptor applies to a given request path.

    A MappedInterceptor can be registered directly with any AbstractHandlerMethodMapping. Furthermore, beans of type MappedInterceptor are automatically detected by AbstractHandlerMethodMapping (including ancestor ApplicationContext's) which effectively means the interceptor is registered "globally" with all handler mappings.

    Since:
    3.0
    Author:
    Keith Donald, Rossen Stoyanchev, Brian Clozel

    • Constructor Detail

      • MappedInterceptor

        public MappedInterceptor​(String[] includePatterns,
                         HandlerInterceptor interceptor)
        Create a new MappedInterceptor instance.
        Parameters:
        includePatterns - the path patterns to map (empty for matching to all paths)
        interceptor - the HandlerInterceptor instance to map to the given patterns

      • MappedInterceptor

        public MappedInterceptor​(String[] includePatterns,
                         String[] excludePatterns,
                         HandlerInterceptor interceptor)
        Create a new MappedInterceptor instance.
        Parameters:
        includePatterns - the path patterns to map (empty for matching to all paths)
        excludePatterns - the path patterns to exclude (empty for no specific excludes)
        interceptor - the HandlerInterceptor instance to map to the given patterns

      • MappedInterceptor

        public MappedInterceptor​(String[] includePatterns,
                         WebRequestInterceptor interceptor)
        Create a new MappedInterceptor instance.
        Parameters:
        includePatterns - the path patterns to map (empty for matching to all paths)
        interceptor - the WebRequestInterceptor instance to map to the given patterns

      • MappedInterceptor

        public MappedInterceptor​(String[] includePatterns,
                         String[] excludePatterns,
                         WebRequestInterceptor interceptor)
        Create a new MappedInterceptor instance.
        Parameters:
        includePatterns - the path patterns to map (empty for matching to all paths)
        excludePatterns - the path patterns to exclude (empty for no specific excludes)
        interceptor - the WebRequestInterceptor instance to map to the given patterns

    • Method Detail

      • setPathMatcher

        public void setPathMatcher​(PathMatcher pathMatcher)
        Configure a PathMatcher to use with this MappedInterceptor instead of the one passed by default to the matches(String, org.springframework.util.PathMatcher) method.

        This is an advanced property that is only required when using custom PathMatcher implementations that support mapping metadata other than the Ant-style path patterns supported by default.

      • getPathPatterns

        public String[] getPathPatterns()
        The path into the application the interceptor is mapped to.

      • matches

        public boolean matches​(String lookupPath,
                       PathMatcher pathMatcher)
        Determine a match for the given lookup path.
        Parameters:
        lookupPath - the current request path
        pathMatcher - a path matcher for path pattern matching

      • preHandle

        public boolean preHandle​(HttpServletRequest request,
                         HttpServletResponse response,
                         Object handler)
                  throws Exception
        Description copied from interface: HandlerInterceptor
        Intercept the execution of a handler. Called after HandlerMapping determined an appropriate handler object, but before HandlerAdapter invokes the handler.

        DispatcherServlet processes a handler in an execution chain, consisting of any number of interceptors, with the handler itself at the end. With this method, each interceptor can decide to abort the execution chain, typically sending a HTTP error or writing a custom response.

        Note: special considerations apply for asynchronous request processing. For more details see AsyncHandlerInterceptor.

        Specified by:
        preHandle in interface HandlerInterceptor
        Parameters:
        request - current HTTP request
        response - current HTTP response
        handler - chosen handler to execute, for type and/or instance evaluation
        Returns:
        true if the execution chain should proceed with the next interceptor or the handler itself. Else, DispatcherServlet assumes that this interceptor has already dealt with the response itself.
        Throws:
        Exception - in case of errors

      • postHandle

        public void postHandle​(HttpServletRequest request,
                       HttpServletResponse response,
                       Object handler,
                       ModelAndView modelAndView)
                throws Exception
        Description copied from interface: HandlerInterceptor
        Intercept the execution of a handler. Called after HandlerAdapter actually invoked the handler, but before the DispatcherServlet renders the view. Can expose additional model objects to the view via the given ModelAndView.

        DispatcherServlet processes a handler in an execution chain, consisting of any number of interceptors, with the handler itself at the end. With this method, each interceptor can post-process an execution, getting applied in inverse order of the execution chain.

        Note: special considerations apply for asynchronous request processing. For more details see AsyncHandlerInterceptor.

        Specified by:
        postHandle in interface HandlerInterceptor
        Parameters:
        request - current HTTP request
        response - current HTTP response
        handler - handler (or HandlerMethod) that started asynchronous execution, for type and/or instance examination
        modelAndView - the ModelAndView that the handler returned (can also be null)
        Throws:
        Exception - in case of errors

      • afterCompletion

        public void afterCompletion​(HttpServletRequest request,
                            HttpServletResponse response,
                            Object handler,
                            Exception ex)
                     throws Exception
        Description copied from interface: HandlerInterceptor
        Callback after completion of request processing, that is, after rendering the view. Will be called on any outcome of handler execution, thus allows for proper resource cleanup.

        Note: Will only be called if this interceptor's preHandle method has successfully completed and returned true!

        As with the postHandle method, the method will be invoked on each interceptor in the chain in reverse order, so the first interceptor will be the last to be invoked.

        Note: special considerations apply for asynchronous request processing. For more details see AsyncHandlerInterceptor.

        Specified by:
        afterCompletion in interface HandlerInterceptor
        Parameters:
        request - current HTTP request
        response - current HTTP response
        handler - handler (or HandlerMethod) that started asynchronous execution, for type and/or instance examination
        ex - exception thrown on handler execution, if any
        Throws:
        Exception - in case of errors