Java Code Examples for org.springframework.web.servlet.HandlerExecutionChain#addInterceptor()

The following examples show how to use org.springframework.web.servlet.HandlerExecutionChain#addInterceptor() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AbstractHandlerMapping.java    From spring-analysis-note with MIT License 4 votes vote down vote up 
/**
 * Build a {@link HandlerExecutionChain} for the given handler, including
 * applicable interceptors.
 * <p>The default implementation builds a standard {@link HandlerExecutionChain}
 * with the given handler, the handler mapping's common interceptors, and any
 * {@link MappedInterceptor MappedInterceptors} matching to the current request URL. Interceptors
 * are added in the order they were registered. Subclasses may override this
 * in order to extend/rearrange the list of interceptors.
 * <p><b>NOTE:</b> The passed-in handler object may be a raw handler or a
 * pre-built {@link HandlerExecutionChain}. This method should handle those
 * two cases explicitly, either building a new {@link HandlerExecutionChain}
 * or extending the existing chain.
 * <p>For simply adding an interceptor in a custom subclass, consider calling
 * {@code super.getHandlerExecutionChain(handler, request)} and invoking
 * {@link HandlerExecutionChain#addInterceptor} on the returned chain object.
 * @param handler the resolved handler instance (never {@code null})
 * @param request current HTTP request
 * @return the HandlerExecutionChain (never {@code null})
 * @see #getAdaptedInterceptors()
 */
protected HandlerExecutionChain getHandlerExecutionChain(Object handler, HttpServletRequest request) {
	HandlerExecutionChain chain = (handler instanceof HandlerExecutionChain ?
			(HandlerExecutionChain) handler : new HandlerExecutionChain(handler));
	// 截取用于匹配的 url 路径
	String lookupPath = this.urlPathHelper.getLookupPathForRequest(request, LOOKUP_PATH);
	for (HandlerInterceptor interceptor : this.adaptedInterceptors) {
		if (interceptor instanceof MappedInterceptor) {
			MappedInterceptor mappedInterceptor = (MappedInterceptor) interceptor;
			if (mappedInterceptor.matches(lookupPath, this.pathMatcher)) {
				chain.addInterceptor(mappedInterceptor.getInterceptor());
			}
		}
		else {
			chain.addInterceptor(interceptor);
		}
	}
	return chain;
}
Example 2
Source File: AbstractHandlerMapping.java    From java-technology-stack with MIT License 4 votes vote down vote up 
/**
 * Build a {@link HandlerExecutionChain} for the given handler, including
 * applicable interceptors.
 * <p>The default implementation builds a standard {@link HandlerExecutionChain}
 * with the given handler, the handler mapping's common interceptors, and any
 * {@link MappedInterceptor MappedInterceptors} matching to the current request URL. Interceptors
 * are added in the order they were registered. Subclasses may override this
 * in order to extend/rearrange the list of interceptors.
 * <p><b>NOTE:</b> The passed-in handler object may be a raw handler or a
 * pre-built {@link HandlerExecutionChain}. This method should handle those
 * two cases explicitly, either building a new {@link HandlerExecutionChain}
 * or extending the existing chain.
 * <p>For simply adding an interceptor in a custom subclass, consider calling
 * {@code super.getHandlerExecutionChain(handler, request)} and invoking
 * {@link HandlerExecutionChain#addInterceptor} on the returned chain object.
 * @param handler the resolved handler instance (never {@code null})
 * @param request current HTTP request
 * @return the HandlerExecutionChain (never {@code null})
 * @see #getAdaptedInterceptors()
 */
protected HandlerExecutionChain getHandlerExecutionChain(Object handler, HttpServletRequest request) {
	HandlerExecutionChain chain = (handler instanceof HandlerExecutionChain ?
			(HandlerExecutionChain) handler : new HandlerExecutionChain(handler));

	String lookupPath = this.urlPathHelper.getLookupPathForRequest(request);
	for (HandlerInterceptor interceptor : this.adaptedInterceptors) {
		if (interceptor instanceof MappedInterceptor) {
			MappedInterceptor mappedInterceptor = (MappedInterceptor) interceptor;
			if (mappedInterceptor.matches(lookupPath, this.pathMatcher)) {
				chain.addInterceptor(mappedInterceptor.getInterceptor());
			}
		}
		else {
			chain.addInterceptor(interceptor);
		}
	}
	return chain;
}
Example 3
Source File: AbstractHandlerMapping.java    From lams with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Build a {@link HandlerExecutionChain} for the given handler, including
 * applicable interceptors.
 * <p>The default implementation builds a standard {@link HandlerExecutionChain}
 * with the given handler, the handler mapping's common interceptors, and any
 * {@link MappedInterceptor}s matching to the current request URL. Interceptors
 * are added in the order they were registered. Subclasses may override this
 * in order to extend/rearrange the list of interceptors.
 * <p><b>NOTE:</b> The passed-in handler object may be a raw handler or a
 * pre-built {@link HandlerExecutionChain}. This method should handle those
 * two cases explicitly, either building a new {@link HandlerExecutionChain}
 * or extending the existing chain.
 * <p>For simply adding an interceptor in a custom subclass, consider calling
 * {@code super.getHandlerExecutionChain(handler, request)} and invoking
 * {@link HandlerExecutionChain#addInterceptor} on the returned chain object.
 * @param handler the resolved handler instance (never {@code null})
 * @param request current HTTP request
 * @return the HandlerExecutionChain (never {@code null})
 * @see #getAdaptedInterceptors()
 */
protected HandlerExecutionChain getHandlerExecutionChain(Object handler, HttpServletRequest request) {
	HandlerExecutionChain chain = (handler instanceof HandlerExecutionChain ?
			(HandlerExecutionChain) handler : new HandlerExecutionChain(handler));

	String lookupPath = this.urlPathHelper.getLookupPathForRequest(request);
	for (HandlerInterceptor interceptor : this.adaptedInterceptors) {
		if (interceptor instanceof MappedInterceptor) {
			MappedInterceptor mappedInterceptor = (MappedInterceptor) interceptor;
			if (mappedInterceptor.matches(lookupPath, this.pathMatcher)) {
				chain.addInterceptor(mappedInterceptor.getInterceptor());
			}
		}
		else {
			chain.addInterceptor(interceptor);
		}
	}
	return chain;
}
Example 4
Source File: AbstractHandlerMapping.java    From spring4-understanding with Apache License 2.0 4 votes vote down vote up 
/**
 * Build a {@link HandlerExecutionChain} for the given handler, including
 * applicable interceptors.
 * <p>The default implementation builds a standard {@link HandlerExecutionChain}
 * with the given handler, the handler mapping's common interceptors, and any
 * {@link MappedInterceptor}s matching to the current request URL. Interceptors
 * are added in the order they were registered. Subclasses may override this
 * in order to extend/rearrange the list of interceptors.
 * <p><b>NOTE:</b> The passed-in handler object may be a raw handler or a
 * pre-built {@link HandlerExecutionChain}. This method should handle those
 * two cases explicitly, either building a new {@link HandlerExecutionChain}
 * or extending the existing chain.
 * <p>For simply adding an interceptor in a custom subclass, consider calling
 * {@code super.getHandlerExecutionChain(handler, request)} and invoking
 * {@link HandlerExecutionChain#addInterceptor} on the returned chain object.
 * @param handler the resolved handler instance (never {@code null})
 * @param request current HTTP request
 * @return the HandlerExecutionChain (never {@code null})
 * @see #getAdaptedInterceptors()
 */
protected HandlerExecutionChain getHandlerExecutionChain(Object handler, HttpServletRequest request) {
	HandlerExecutionChain chain = (handler instanceof HandlerExecutionChain ?
			(HandlerExecutionChain) handler : new HandlerExecutionChain(handler));

	String lookupPath = this.urlPathHelper.getLookupPathForRequest(request);
	for (HandlerInterceptor interceptor : this.adaptedInterceptors) {
		if (interceptor instanceof MappedInterceptor) {
			MappedInterceptor mappedInterceptor = (MappedInterceptor) interceptor;
			if (mappedInterceptor.matches(lookupPath, this.pathMatcher)) {
				chain.addInterceptor(mappedInterceptor.getInterceptor());
			}
		}
		else {
			chain.addInterceptor(interceptor);
		}
	}
	return chain;
}
Example 5
Source File: AbstractUrlHandlerMapping.java    From spring-analysis-note with MIT License 3 votes vote down vote up 
/**
 * Build a handler object for the given raw handler, exposing the actual
 * handler, the {@link #PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE}, as well as
 * the {@link #URI_TEMPLATE_VARIABLES_ATTRIBUTE} before executing the handler.
 * <p>The default implementation builds a {@link HandlerExecutionChain}
 * with a special interceptor that exposes the path attribute and uri template variables
 * @param rawHandler the raw handler to expose
 * @param pathWithinMapping the path to expose before executing the handler
 * @param uriTemplateVariables the URI template variables, can be {@code null} if no variables found
 * @return the final handler object
 */
protected Object buildPathExposingHandler(Object rawHandler, String bestMatchingPattern,
		String pathWithinMapping, @Nullable Map<String, String> uriTemplateVariables) {

	HandlerExecutionChain chain = new HandlerExecutionChain(rawHandler);
	chain.addInterceptor(new PathExposingHandlerInterceptor(bestMatchingPattern, pathWithinMapping));
	if (!CollectionUtils.isEmpty(uriTemplateVariables)) {
		chain.addInterceptor(new UriTemplateVariablesHandlerInterceptor(uriTemplateVariables));
	}
	return chain;
}
Example 6
Source File: AbstractUrlHandlerMapping.java    From java-technology-stack with MIT License 3 votes vote down vote up 
/**
 * Build a handler object for the given raw handler, exposing the actual
 * handler, the {@link #PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE}, as well as
 * the {@link #URI_TEMPLATE_VARIABLES_ATTRIBUTE} before executing the handler.
 * <p>The default implementation builds a {@link HandlerExecutionChain}
 * with a special interceptor that exposes the path attribute and uri template variables
 * @param rawHandler the raw handler to expose
 * @param pathWithinMapping the path to expose before executing the handler
 * @param uriTemplateVariables the URI template variables, can be {@code null} if no variables found
 * @return the final handler object
 */
protected Object buildPathExposingHandler(Object rawHandler, String bestMatchingPattern,
		String pathWithinMapping, @Nullable Map<String, String> uriTemplateVariables) {

	HandlerExecutionChain chain = new HandlerExecutionChain(rawHandler);
	chain.addInterceptor(new PathExposingHandlerInterceptor(bestMatchingPattern, pathWithinMapping));
	if (!CollectionUtils.isEmpty(uriTemplateVariables)) {
		chain.addInterceptor(new UriTemplateVariablesHandlerInterceptor(uriTemplateVariables));
	}
	return chain;
}
Example 7
Source File: AbstractUrlHandlerMapping.java    From lams with GNU General Public License v2.0 3 votes vote down vote up 
/**
 * Build a handler object for the given raw handler, exposing the actual
 * handler, the {@link #PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE}, as well as
 * the {@link #URI_TEMPLATE_VARIABLES_ATTRIBUTE} before executing the handler.
 * <p>The default implementation builds a {@link HandlerExecutionChain}
 * with a special interceptor that exposes the path attribute and uri template variables
 * @param rawHandler the raw handler to expose
 * @param pathWithinMapping the path to expose before executing the handler
 * @param uriTemplateVariables the URI template variables, can be {@code null} if no variables found
 * @return the final handler object
 */
protected Object buildPathExposingHandler(Object rawHandler, String bestMatchingPattern,
		String pathWithinMapping, Map<String, String> uriTemplateVariables) {

	HandlerExecutionChain chain = new HandlerExecutionChain(rawHandler);
	chain.addInterceptor(new PathExposingHandlerInterceptor(bestMatchingPattern, pathWithinMapping));
	if (!CollectionUtils.isEmpty(uriTemplateVariables)) {
		chain.addInterceptor(new UriTemplateVariablesHandlerInterceptor(uriTemplateVariables));
	}
	return chain;
}
Example 8
Source File: AbstractUrlHandlerMapping.java    From spring4-understanding with Apache License 2.0 3 votes vote down vote up 
/**
 * Build a handler object for the given raw handler, exposing the actual
 * handler, the {@link #PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE}, as well as
 * the {@link #URI_TEMPLATE_VARIABLES_ATTRIBUTE} before executing the handler.
 * <p>The default implementation builds a {@link HandlerExecutionChain}
 * with a special interceptor that exposes the path attribute and uri template variables
 * @param rawHandler the raw handler to expose
 * @param pathWithinMapping the path to expose before executing the handler
 * @param uriTemplateVariables the URI template variables, can be {@code null} if no variables found
 * @return the final handler object
 */
protected Object buildPathExposingHandler(Object rawHandler, String bestMatchingPattern,
		String pathWithinMapping, Map<String, String> uriTemplateVariables) {

	HandlerExecutionChain chain = new HandlerExecutionChain(rawHandler);
	chain.addInterceptor(new PathExposingHandlerInterceptor(bestMatchingPattern, pathWithinMapping));
	if (!CollectionUtils.isEmpty(uriTemplateVariables)) {
		chain.addInterceptor(new UriTemplateVariablesHandlerInterceptor(uriTemplateVariables));
	}
	return chain;
}