spring security NegatedServerWebExchangeMatcher 源码
spring security NegatedServerWebExchangeMatcher 代码
文件路径：/web/src/main/java/org/springframework/security/web/server/util/matcher/NegatedServerWebExchangeMatcher.java
/*
* Copyright 2002-2020 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.web.server.util.matcher;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import reactor.core.publisher.Mono;
import org.springframework.core.log.LogMessage;
import org.springframework.util.Assert;
import org.springframework.web.server.ServerWebExchange;
/**
* Negates the provided matcher. If the provided matcher returns true, then the result
* will be false. If the provided matcher returns false, then the result will be true.
*
* @author Tao Qian
* @author Mathieu Ouellet
* @since 5.1
*/
public class NegatedServerWebExchangeMatcher implements ServerWebExchangeMatcher {
private static final Log logger = LogFactory.getLog(NegatedServerWebExchangeMatcher.class);
private final ServerWebExchangeMatcher matcher;
public NegatedServerWebExchangeMatcher(ServerWebExchangeMatcher matcher) {
Assert.notNull(matcher, "matcher cannot be null");
this.matcher = matcher;
}
@Override
public Mono<MatchResult> matches(ServerWebExchange exchange) {
return this.matcher.matches(exchange).flatMap(this::negate)
.doOnNext((matchResult) -> logger.debug(LogMessage.format("matches = %s", matchResult.isMatch())));
}
private Mono<MatchResult> negate(MatchResult matchResult) {
return matchResult.isMatch() ? MatchResult.notMatch() : MatchResult.match();
}
@Override
public String toString() {
return "NegatedServerWebExchangeMatcher{" + "matcher=" + this.matcher + '}';
}
}
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