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spring-core/src/main/java/org/springframework/util/RouteMatcher.java
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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; | ||
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| import java.util.Comparator; | ||
| import java.util.Map; | ||
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| import org.springframework.lang.Nullable; | ||
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| /** | ||
| * Contract for matching routes to patterns. | ||
| * | ||
| * <p>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 | ||
| */ | ||
| public interface RouteMatcher { | ||
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| /** | ||
| * 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); | ||
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| /** | ||
| * 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); | ||
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| /** | ||
| * 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); | ||
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| /** | ||
| * 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); | ||
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| /** | ||
| * 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<String, String> matchAndExtract(String pattern, Route route); | ||
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| /** | ||
| * 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<String> getPatternComparator(Route route); | ||
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| /** | ||
| * A parsed representation of a route. | ||
| */ | ||
| interface Route { | ||
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| /** | ||
| * The original route value. | ||
| */ | ||
| String value(); | ||
| } | ||
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| } |
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spring-core/src/main/java/org/springframework/util/SimpleRouteMatcher.java
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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; | ||
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| import java.util.Comparator; | ||
| import java.util.Map; | ||
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| import org.springframework.lang.Nullable; | ||
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| /** | ||
| * {@code RouteMatcher} that delegates to a {@link PathMatcher}. | ||
| * | ||
| * <p><strong>Note:</strong> This implementation is not efficient since | ||
| * {@code PathMatcher} treats paths and patterns as Strings. For more optimized | ||
| * performance use the {@code PathPatternRouteMatcher} from {@code spring-web} | ||
| * which enables use of parsed routes and patterns. | ||
| * | ||
| * @author Rossen Stoyanchev | ||
| * @since 5.2 | ||
| */ | ||
| public class SimpleRouteMatcher implements RouteMatcher { | ||
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| private final PathMatcher pathMatcher; | ||
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| public SimpleRouteMatcher(PathMatcher pathMatcher) { | ||
| Assert.notNull(pathMatcher, "PathMatcher is required"); | ||
| this.pathMatcher = pathMatcher; | ||
| } | ||
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| public PathMatcher getPathMatcher() { | ||
| return this.pathMatcher; | ||
| } | ||
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| @Override | ||
| public Route parseRoute(String route) { | ||
| return new DefaultRoute(route); | ||
| } | ||
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| @Override | ||
| public boolean isPattern(String route) { | ||
| return this.pathMatcher.isPattern(route); | ||
| } | ||
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| @Override | ||
| public String combine(String pattern1, String pattern2) { | ||
| return this.pathMatcher.combine(pattern1, pattern2); | ||
| } | ||
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| @Override | ||
| public boolean match(String pattern, Route route) { | ||
| return this.pathMatcher.match(pattern, route.value()); | ||
| } | ||
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| @Override | ||
| @Nullable | ||
| public Map<String, String> matchAndExtract(String pattern, Route route) { | ||
| if (!match(pattern, route)) { | ||
| return null; | ||
| } | ||
| return this.pathMatcher.extractUriTemplateVariables(pattern, route.value()); | ||
| } | ||
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| @Override | ||
| public Comparator<String> getPatternComparator(Route route) { | ||
| return this.pathMatcher.getPatternComparator(route.value()); | ||
| } | ||
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| private static class DefaultRoute implements Route { | ||
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| private final String path; | ||
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| DefaultRoute(String path) { | ||
| this.path = path; | ||
| } | ||
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| @Override | ||
| public String value() { | ||
| return this.path; | ||
| } | ||
| } | ||
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| } |
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