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This article mainly introduces "what is the role of WebFluxTagsProvider in spring boot". In daily operation, I believe that many people have doubts about the role of WebFluxTagsProvider in spring boot. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubt of "what is the role of WebFluxTagsProvider in spring boot?" Next, please follow the editor to study!

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This paper mainly studies the WebFluxTagsProvider of webflux.

WebFluxTagsProvider

SpringMurbootMutorMuatorUr 2.1.5.RELEASEsarsources.jarAccording orgSpringframeworkChargSpringframeworkUniverse metricsUniverse reactiveGrexServerGrexWebFluxTagsProvider.java

@ FunctionalInterfacepublic interface WebFluxTagsProvider {/ * * Provides tags to be associated with metrics for the given {@ code exchange}. * @ param exchange the exchange * @ param ex the current exception (may be {@ code null}) * @ return tags to associate with metrics for the request and response exchange * / Iterable httpRequestTags (ServerWebExchange exchange, Throwable ex);}

The WebFluxTagsProvider interface defines the httpRequestTags method

DefaultWebFluxTagsProvider

SpringMurbootMutorMuatorUr 2.1.5.RELEASEsarsources.jarchangeorgUniverse springframeworkChargSpringChargeBotUniteBackmetricsUniverse reactiveSequenceServerGear DefaultWebFluxTagsProvider.java

Public class DefaultWebFluxTagsProvider implements WebFluxTagsProvider {@ Override public Iterable httpRequestTags (ServerWebExchange exchange, Throwable exception) {return Arrays.asList (WebFluxTags.method (exchange), WebFluxTags.uri (exchange), WebFluxTags.exception (exception), WebFluxTags.status (exchange), WebFluxTags.outcome (exchange));}}

DefaultWebFluxTagsProvider implements the WebFluxTagsProvider interface, which returns the tag of method, uri, exception, status and outcome

WebFluxTags

SpringMurbootMutorMuatorUr 2.1.5.RELEASEsarsources.jarAccording orgSpringframeworkChargSpringframeworkUniverse metricsUnix metricsUnix webactiveSERVERSCUR WebFluxTags.java

Public final class WebFluxTags {private static final Tag URI_NOT_FOUND = Tag.of ("uri", "NOT_FOUND"); private static final Tag URI_REDIRECTION = Tag.of ("uri", "REDIRECTION"); private static final Tag URI_ROOT = Tag.of ("uri", "root"); private static final Tag URI_UNKNOWN = Tag.of ("uri", "UNKNOWN") Private static final Tag EXCEPTION_NONE = Tag.of ("exception", "None"); private static final Tag OUTCOME_UNKNOWN = Tag.of ("outcome", "UNKNOWN"); private static final Tag OUTCOME_INFORMATIONAL = Tag.of ("outcome", "INFORMATIONAL"); private static final Tag OUTCOME_SUCCESS = Tag.of ("outcome", "SUCCESS"); private static final Tag OUTCOME_REDIRECTION = Tag.of ("outcome", "REDIRECTION") Private static final Tag OUTCOME_CLIENT_ERROR = Tag.of ("outcome", "CLIENT_ERROR"); private static final Tag OUTCOME_SERVER_ERROR = Tag.of ("outcome", "SERVER_ERROR"); private WebFluxTags () {} public static Tag method (ServerWebExchange exchange) {return Tag.of ("method", exchange.getRequest (). GetMethodValue ()) } public static Tag status (ServerWebExchange exchange) {HttpStatus status = exchange.getResponse () .getStatusCode (); if (status = = null) {status = HttpStatus.OK;} return Tag.of ("status", String.valueOf (status.value () } public static Tag uri (ServerWebExchange exchange) {PathPattern pathPattern = exchange .getAttribute (HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE); if (pathPattern! = null) {return Tag.of ("uri", pathPattern.getPatternString ()) } HttpStatus status = exchange.getResponse () .getStatusCode (); if (status! = null) {if (status.is3xxRedirection ()) {return URI_REDIRECTION } if (status = = HttpStatus.NOT_FOUND) {return URI_NOT_FOUND;}} String path = getPathInfo (exchange) If (path.isEmpty ()) {return URI_ROOT;} return URI_UNKNOWN;} private static String getPathInfo (ServerWebExchange exchange) {String path = exchange.getRequest (). GetPath (). Value (); String uri = StringUtils.hasText (path)? Path: "/"; return uri.replaceAll ("/ / +", "/"). ReplaceAll ("/ $", "");} public static Tag exception (Throwable exception) {if (exception! = null) {String simpleName = exception.getClass () .getSimpleName () Return Tag.of ("exception", StringUtils.hasText (simpleName)? SimpleName: exception.getClass () .getName ();} return EXCEPTION_NONE;} public static Tag outcome (ServerWebExchange exchange) {HttpStatus status = exchange.getResponse () .getStatusCode () If (status! = null) {if (status.is1xxInformational ()) {return OUTCOME_INFORMATIONAL;} if (status.is2xxSuccessful ()) {return OUTCOME_SUCCESS } if (status.is3xxRedirection ()) {return OUTCOME_REDIRECTION;} if (status.is4xxClientError ()) {return OUTCOME_CLIENT_ERROR } return OUTCOME_SERVER_ERROR;} return OUTCOME_UNKNOWN;}}

WebFluxTags defines Tag constants such as URI_NOT_FOUND, URI_REDIRECTION, URI_ROOT, URI_UNKNOWN, EXCEPTION_NONE, OUTCOME_UNKNOWN, OUTCOME_INFORMATIONAL, OUTCOME_SUCCESS, OUTCOME_REDIRECTION, OUTCOME_CLIENT_ERROR, OUTCOME_SERVER_ERROR.

Summary

The WebFluxTagsProvider interface defines the httpRequestTags method; DefaultWebFluxTagsProvider implements the WebFluxTagsProvider interface, which returns the method, uri, exception, status, outcome tag;WebFluxTags defines the Tag constants URI_NOT_FOUND, URI_REDIRECTION, URI_ROOT, URI_UNKNOWN, EXCEPTION_NONE, OUTCOME_UNKNOWN, OUTCOME_INFORMATIONAL, OUTCOME_SUCCESS, OUTCOME_REDIRECTION, OUTCOME_CLIENT_ERROR, OUTCOME_SERVER_ERROR

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