text: /*
   * Copyright 2010-present Facebook.
   *
   * 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.
   */
  
  #import "FBRequestConnection.h"
  #import "FBSDKMacros.h"
  
  // Defines the maximum number of retries for the FBRequestConnectionErrorBehaviorRetry.
  FBSDK_EXTERN const int FBREQUEST_DEFAULT_MAX_RETRY_LIMIT;
  
  // Internal only class to facilitate FBRequest processing, specifically
  // associating FBRequest and FBRequestHandler instances and necessary
  // data for retry processing.
  @interface FBRequestMetadata : NSObject
  
  @property (nonatomic, retain) FBRequest *request;
  @property (nonatomic, copy) FBRequestHandler completionHandler;
  @property (nonatomic, copy) NSDictionary *batchParameters;
  @property (nonatomic, assign) FBRequestConnectionErrorBehavior behavior;
  @property (nonatomic, copy) FBRequestHandler originalCompletionHandler;
  
  @property (nonatomic, assign) int retryCount;
  @property (nonatomic, retain) id originalResult;
  @property (nonatomic, retain) NSError *originalError;
  
  - (instancetype)initWithRequest:(FBRequest *)request
                completionHandler:(FBRequestHandler)handler
                  batchParameters:(NSDictionary *)batchParameters
                         behavior:(FBRequestConnectionErrorBehavior)behavior;
  
  - (void)invokeCompletionHandlerForConnection:(FBRequestConnection *)connection
                                   withResults:(id)results
                                         error:(NSError *)error;
  @end
  