content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * 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.cjj.volley.toolbox;
  
  import com.cjj.volley.AuthFailureError;
  
  /**
   * An interface for interacting with auth tokens.
   */
  public interface Authenticator {
      /**
       * Synchronously retrieves an auth token.
       *
       * @throws AuthFailureError If authentication did not succeed
       */
      public String getAuthToken() throws AuthFailureError;
  
      /**
       * Invalidates the provided auth token.
       */
      public void invalidateAuthToken(String authToken);
  }
  