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/*
* Copyright 2002-2019 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.util;
import java.util.Comparator;
import java.util.Map;
import org.springframework.lang.Nullable;
/**
* Contract for matching routes to patterns.
*
* Equivalent to {@link PathMatcher}, but enables use of parsed representations
* of routes and patterns for efficiency reasons in scenarios where routes from
* incoming messages are continuously matched against a large number of message
* handler patterns.
*
* @author Rossen Stoyanchev
* @since 5.2
* @see PathMatcher
*/
public interface RouteMatcher {
/**
* Return a parsed representation of the given route.
* @param routeValue the route to parse
* @return the parsed representation of the route
*/
Route parseRoute(String routeValue);
/**
* Whether the given {@code route} contains pattern syntax which requires
* the {@link #match(String, Route)} method, or if it is a regular String
* that could be compared directly to others.
* @param route the route to check
* @return {@code true} if the given {@code route} represents a pattern
*/
boolean isPattern(String route);
/**
* Combines two patterns into a single pattern.
* @param pattern1 the first pattern
* @param pattern2 the second pattern
* @return the combination of the two patterns
* @throws IllegalArgumentException when the two patterns cannot be combined
*/
String combine(String pattern1, String pattern2);
/**
* Match the given route against the given pattern.
* @param pattern the pattern to try to match
* @param route the route to test against
* @return {@code true} if there is a match, {@code false} otherwise
*/
boolean match(String pattern, Route route);
/**
* Match the pattern to the route and extract template variables.
* @param pattern the pattern, possibly containing templates variables
* @param route the route to extract template variables from
* @return a map with template variables and values
*/
@Nullable
Map matchAndExtract(String pattern, Route route);
/**
* Given a route, return a {@link Comparator} suitable for sorting patterns
* in order of explicitness for that route, so that more specific patterns
* come before more generic ones.
* @param route the full path to use for comparison
* @return a comparator capable of sorting patterns in order of explicitness
*/
Comparator getPatternComparator(Route route);
/**
* A parsed representation of a route.
*/
interface Route {
/**
* The original route value.
*/
String value();
}
}