content: /*
   * Copyright 1999-2019 Alibaba Group Holding Ltd.
   *
   * 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
   *
   *      http://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 com.alibaba.csp.sentinel.adapter.gateway.sc.route;
  
  import java.util.regex.Pattern;
  
  import com.alibaba.csp.sentinel.util.AssertUtil;
  import com.alibaba.csp.sentinel.util.function.Predicate;
  
  import org.springframework.web.server.ServerWebExchange;
  
  /**
   * @author Eric Zhao
   * @since 1.6.0
   */
  public class RegexRoutePathMatcher implements Predicate<ServerWebExchange> {
  
      private final String pattern;
      private final Pattern regex;
  
      public RegexRoutePathMatcher(String pattern) {
          AssertUtil.assertNotBlank(pattern, "pattern cannot be blank");
          this.pattern = pattern;
          this.regex = Pattern.compile(pattern);
      }
  
      @Override
      public boolean test(ServerWebExchange exchange) {
          String path = exchange.getRequest().getPath().value();
          return regex.matcher(path).matches();
      }
  
      public String getPattern() {
          return pattern;
      }
  }
  