spring security PayloadExchangeMatcher 源码
spring security PayloadExchangeMatcher 代码
文件路径：/rsocket/src/main/java/org/springframework/security/rsocket/util/matcher/PayloadExchangeMatcher.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.Collections;
import java.util.HashMap;
import java.util.Map;
import reactor.core.publisher.Mono;
import org.springframework.security.rsocket.api.PayloadExchange;
/**
* An interface for determining if a {@link PayloadExchangeMatcher} matches.
*
* @author Rob Winch
* @since 5.2
*/
public interface PayloadExchangeMatcher {
/**
* Determines if a request matches or not
* @param exchange
* @return
*/
Mono<MatchResult> matches(PayloadExchange exchange);
/**
* The result of matching
*/
class MatchResult {
private final boolean match;
private final Map<String, Object> variables;
private MatchResult(boolean match, Map<String, Object> variables) {
this.match = match;
this.variables = variables;
}
public boolean isMatch() {
return this.match;
}
/**
* Gets potential variables and their values
* @return
*/
public Map<String, Object> getVariables() {
return this.variables;
}
/**
* Creates an instance of {@link MatchResult} that is a match with no variables
* @return
*/
public static Mono<MatchResult> match() {
return match(Collections.emptyMap());
}
/**
*
* Creates an instance of {@link MatchResult} that is a match with the specified
* variables
* @param variables
* @return
*/
public static Mono<MatchResult> match(Map<String, ? extends Object> variables) {
MatchResult result = new MatchResult(true,
(variables != null) ? new HashMap<String, Object>(variables) : null);
return Mono.just(result);
}
/**
* Creates an instance of {@link MatchResult} that is not a match.
* @return
*/
public static Mono<MatchResult> notMatch() {
return Mono.just(new MatchResult(false, Collections.emptyMap()));
}
}
}
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