spring security RoutePayloadExchangeMatcher 源码
spring security RoutePayloadExchangeMatcher 代码
文件路径：/rsocket/src/main/java/org/springframework/security/rsocket/util/matcher/RoutePayloadExchangeMatcher.java
/*
* Copyright 2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.security.rsocket.util.matcher;
import java.util.Map;
import java.util.Optional;
import reactor.core.publisher.Mono;
import org.springframework.messaging.rsocket.MetadataExtractor;
import org.springframework.security.rsocket.api.PayloadExchange;
import org.springframework.util.Assert;
import org.springframework.util.RouteMatcher;
// FIXME: Pay attention to the package this goes into. It requires spring-messaging for the MetadataExtractor.
/**
* @author Rob Winch
* @since 5.2
*/
public class RoutePayloadExchangeMatcher implements PayloadExchangeMatcher {
private final String pattern;
private final MetadataExtractor metadataExtractor;
private final RouteMatcher routeMatcher;
public RoutePayloadExchangeMatcher(MetadataExtractor metadataExtractor, RouteMatcher routeMatcher, String pattern) {
Assert.notNull(pattern, "pattern cannot be null");
this.metadataExtractor = metadataExtractor;
this.routeMatcher = routeMatcher;
this.pattern = pattern;
}
@Override
public Mono<MatchResult> matches(PayloadExchange exchange) {
Map<String, Object> metadata = this.metadataExtractor.extract(exchange.getPayload(),
exchange.getMetadataMimeType());
return Optional.ofNullable((String) metadata.get(MetadataExtractor.ROUTE_KEY))
.map((routeValue) -> this.routeMatcher.parseRoute(routeValue))
.map((route) -> this.routeMatcher.matchAndExtract(this.pattern, route)).map((v) -> MatchResult.match(v))
.orElse(MatchResult.notMatch());
}
}
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