/
RequestMatchResult.java
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/
RequestMatchResult.java
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/*
* Copyright 2002-2022 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.web.servlet.handler;
import java.util.Map;
import org.springframework.http.server.PathContainer;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.PathMatcher;
import org.springframework.web.util.pattern.PathPattern;
/**
* Container for the result from request pattern matching via
* {@link MatchableHandlerMapping} with a method to further extract
* URI template variables from the pattern.
*
* @author Rossen Stoyanchev
* @since 4.3.1
*/
public class RequestMatchResult {
@Nullable
private final PathPattern pathPattern;
@Nullable
private final PathContainer lookupPathContainer;
@Nullable
private final String pattern;
@Nullable
private final String lookupPath;
@Nullable
private final PathMatcher pathMatcher;
/**
* Create an instance with the matched {@code PathPattern}.
* @param pathPattern the pattern that was matched
* @param lookupPath the mapping path
* @since 5.3
*/
public RequestMatchResult(PathPattern pathPattern, PathContainer lookupPath) {
Assert.notNull(pathPattern, "PathPattern is required");
Assert.notNull(lookupPath, "PathContainer is required");
this.pattern = null;
this.lookupPath = null;
this.pathMatcher = null;
this.pathPattern = pathPattern;
this.lookupPathContainer = lookupPath;
}
/**
* Create an instance with the matched String pattern.
* @param pattern the pattern that was matched, possibly with a '/' appended
* @param lookupPath the mapping path
* @param pathMatcher the PathMatcher instance used for the match
*/
public RequestMatchResult(String pattern, String lookupPath, PathMatcher pathMatcher) {
Assert.hasText(pattern, "'matchingPattern' is required");
Assert.hasText(lookupPath, "'lookupPath' is required");
Assert.notNull(pathMatcher, "PathMatcher is required");
this.pattern = pattern;
this.lookupPath = lookupPath;
this.pathMatcher = pathMatcher;
this.pathPattern = null;
this.lookupPathContainer = null;
}
/**
* Extract URI template variables from the matching pattern as defined in
* {@link PathMatcher#extractUriTemplateVariables}.
* @return a map with URI template variables
*/
@SuppressWarnings("ConstantConditions")
public Map<String, String> extractUriTemplateVariables() {
return (this.pathPattern != null ?
this.pathPattern.matchAndExtract(this.lookupPathContainer).getUriVariables() :
this.pathMatcher.extractUriTemplateVariables(this.pattern, this.lookupPath));
}
}