content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.kafka.common.security.oauthbearer.internals.secured;
  
  import java.util.concurrent.ExecutionException;
  
  /**
   * Simple interface to abstract out the call that is made so that it can be retried.
   *
   * @param <R> Result type
   *
   * @see Retry
   * @see UnretryableException
   */
  
  public interface Retryable<R> {
  
      /**
       * Perform the operation and return the data from the response.
       *
       * @return Return response data, formatted in the given data type
       *
       * @throws ExecutionException   Thrown on errors connecting, writing, reading, timeouts, etc.
       *                              that can likely be tried again
       * @throws UnretryableException Thrown on errors that we can determine should not be tried again
       */
  
      R call() throws ExecutionException, UnretryableException;
  
  }
  