content: /*
   * Copyright 1999-2020 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
   *
   *      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 com.alibaba.csp.sentinel.adapter.jaxrs.fallback;
  
  import javax.ws.rs.core.MediaType;
  import javax.ws.rs.core.Response;
  import java.util.concurrent.Callable;
  import java.util.concurrent.Future;
  import java.util.concurrent.FutureTask;
  
  /**
   * @author sea
   */
  public class DefaultSentinelJaxRsFallback implements SentinelJaxRsFallback {
      @Override
      public Response fallbackResponse(String route, Throwable cause) {
          return Response.status(Response.Status.TOO_MANY_REQUESTS)
                  .entity("Blocked by Sentinel (flow limiting)")
                  .type(MediaType.APPLICATION_JSON_TYPE)
                  .build();
      }
  
      @Override
      public Future<Response> fallbackFutureResponse(final String route, final Throwable cause) {
          return new FutureTask<>(new Callable<Response>() {
              @Override
              public Response call() throws Exception {
                  return fallbackResponse(route, cause);
              }
          });
      }
  }
  