Class MappedInterceptor

java.lang.Object

org.springframework.web.servlet.handler.MappedInterceptor

All Implemented Interfaces:

HandlerInterceptor

public final class MappedInterceptor
extends Object
implements HandlerInterceptor

Wraps a HandlerInterceptor and uses URL patterns to determine whether it applies to a given request.

Pattern matching can be done with a PathMatcher or with a parsed PathPattern. The syntax is largely the same with the latter being more tailored for web usage and more efficient. The choice is driven by the presence of a resolved String lookupPath or a parsed RequestPath which in turn depends on the HandlerMapping that matched the current request.

MappedInterceptor is supported by subclasses of AbstractHandlerMethodMapping which detect beans of type MappedInterceptor and also check if interceptors directly registered with it are of this type.

Since:

3.0

Author:

Keith Donald, Rossen Stoyanchev, Brian Clozel

Constructor Summary

Constructors

Constructor	Description
MappedInterceptor(String @Nullable [] includePatterns, String @Nullable [] excludePatterns, HttpMethod @Nullable [] includeHttpMethods, HttpMethod @Nullable [] excludeHttpMethods, HandlerInterceptor interceptor, @Nullable PathPatternParser parser)	Create an instance with the given include and exclude patterns and HTTP methods.
MappedInterceptor(String @Nullable [] includePatterns, String @Nullable [] excludePatterns, WebRequestInterceptor interceptor)	Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with a WebRequestInterceptor as the target.
MappedInterceptor(String @Nullable [] includePatterns, String @Nullable [] excludePatterns, HandlerInterceptor interceptor)	Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) without a provided parser.
MappedInterceptor(String @Nullable [] includePatterns, String @Nullable [] excludePatterns, HandlerInterceptor interceptor, @Nullable PathPatternParser parser)	Deprecated, for removal: This API element is subject to removal in a future version. in favor of the constructor variant with HTTP methods
MappedInterceptor(String @Nullable [] includePatterns, WebRequestInterceptor interceptor)	Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with a WebRequestInterceptor as the target.
MappedInterceptor(String @Nullable [] includePatterns, HandlerInterceptor interceptor)	Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with include patterns only.

Method Summary

Modifier and Type	Method	Description
void	afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable Exception ex)	Callback after completion of request processing, that is, after rendering the view.
String @Nullable []	getExcludePathPatterns()	Get the exclude path patterns this interceptor is mapped to.
String @Nullable []	getIncludePathPatterns()	Get the include path patterns this interceptor is mapped to.
HandlerInterceptor	getInterceptor()	The target HandlerInterceptor to invoke in case of a match.
PathMatcher	getPathMatcher()	Deprecated, for removal: This API element is subject to removal in a future version. use of PathMatcher and UrlPathHelper is deprecated for use at runtime in web modules in favor of parsed patterns with PathPatternParser.
boolean	matches(HttpServletRequest request)	Check whether this interceptor is mapped to the request.
void	postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView)	Interception point after successful execution of a handler.
boolean	preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)	Interception point before the execution of a handler.
void	setPathMatcher(PathMatcher pathMatcher)	Deprecated, for removal: This API element is subject to removal in a future version. use of PathMatcher and UrlPathHelper is deprecated for use at runtime in web modules in favor of parsed patterns with PathPatternParser.

Methods inherited from class Object

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

Constructor Details

MappedInterceptor

public MappedInterceptor(String @Nullable [] includePatterns,
 String @Nullable [] excludePatterns,
 HttpMethod @Nullable [] includeHttpMethods,
 HttpMethod @Nullable [] excludeHttpMethods,
 HandlerInterceptor interceptor,
 @Nullable PathPatternParser parser)

Create an instance with the given include and exclude patterns and HTTP methods.

Parameters:

includePatterns - patterns to match, or null to match all paths

excludePatterns - patterns for which requests must not match

includeHttpMethods - the HTTP methods to match, or null for all methods

excludeHttpMethods - the ßHTTP methods to which requests must not match

interceptor - the target interceptor

parser - a parser to use to pre-parse patterns into PathPattern; when not provided, PathPatternParser.defaultInstance is used.

Since:

7.0

MappedInterceptor

@Deprecated(since="7.0",
            forRemoval=true)
public MappedInterceptor(String @Nullable [] includePatterns,
 String @Nullable [] excludePatterns,
 HandlerInterceptor interceptor,
 @Nullable PathPatternParser parser)

Deprecated, for removal: This API element is subject to removal in a future version.

in favor of the constructor variant with HTTP methods

Variation of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) without HTTP methods.

Since:

5.3

MappedInterceptor

public MappedInterceptor(String @Nullable [] includePatterns,
 HandlerInterceptor interceptor)

Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with include patterns only.

MappedInterceptor

public MappedInterceptor(String @Nullable [] includePatterns,
 String @Nullable [] excludePatterns,
 HandlerInterceptor interceptor)

Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) without a provided parser.

MappedInterceptor

public MappedInterceptor(String @Nullable [] includePatterns,
 WebRequestInterceptor interceptor)

Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with a WebRequestInterceptor as the target.

MappedInterceptor

public MappedInterceptor(String @Nullable [] includePatterns,
 String @Nullable [] excludePatterns,
 WebRequestInterceptor interceptor)

Variant of MappedInterceptor(String[], String[], HttpMethod[], HttpMethod[], HandlerInterceptor, PathPatternParser) with a WebRequestInterceptor as the target.

Method Details

getIncludePathPatterns

public String @Nullable [] getIncludePathPatterns()

Get the include path patterns this interceptor is mapped to.

Since:

6.1

See Also:

• getExcludePathPatterns()

getExcludePathPatterns

public String @Nullable [] getExcludePathPatterns()

Get the exclude path patterns this interceptor is mapped to.

Since:

6.1

See Also:

• getIncludePathPatterns()

getInterceptor

public HandlerInterceptor getInterceptor()

The target HandlerInterceptor to invoke in case of a match.

setPathMatcher

@Deprecated(since="7.0",
            forRemoval=true)
public void setPathMatcher(PathMatcher pathMatcher)

Deprecated, for removal: This API element is subject to removal in a future version.

use of PathMatcher and UrlPathHelper is deprecated for use at runtime in web modules in favor of parsed patterns with PathPatternParser.

Configure the PathMatcher to use to match URL paths with against include and exclude patterns.

This is an advanced property that should be used only when a customized AntPathMatcher or a custom PathMatcher is required.

By default this is AntPathMatcher.

Note: Setting PathMatcher enforces use of String pattern matching even when a parsed RequestPath is available.

getPathMatcher

@Deprecated(since="7.0",
            forRemoval=true)
public PathMatcher getPathMatcher()

Deprecated, for removal: This API element is subject to removal in a future version.

use of PathMatcher and UrlPathHelper is deprecated for use at runtime in web modules in favor of parsed patterns with PathPatternParser.

Get the configured PathMatcher.

matches

public boolean matches(HttpServletRequest request)

Check whether this interceptor is mapped to the request.

The request mapping path is expected to have been resolved externally. See also class-level Javadoc.

Parameters:

request - the request to match to

Returns:

true if the interceptor should be applied to the request

preHandle

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

Description copied from interface: HandlerInterceptor

Interception point before 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 an HTTP error or writing a custom response.

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

The default implementation returns true.

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,
 @Nullable ModelAndView modelAndView)
                throws Exception

Description copied from interface: HandlerInterceptor

Interception point after successful 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.

The default implementation is empty.

Specified by:

postHandle in interface HandlerInterceptor

Parameters:

request - current HTTP request

response - current HTTP response

handler - the 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,
 @Nullable 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.

The default implementation is empty.

Specified by:

afterCompletion in interface HandlerInterceptor

Parameters:

request - current HTTP request

response - current HTTP response

handler - the handler (or HandlerMethod) that started asynchronous execution, for type and/or instance examination

ex - any exception thrown on handler execution, if any; this does not include exceptions that have been handled through an exception resolver

Throws:

Exception - in case of errors