<?php
  
  namespace Guzzle\Batch;
  
  use Guzzle\Batch\Exception\BatchTransferException;
  
  /**
   * BatchInterface decorator used to buffer exceptions encountered during a transfer.  The exceptions can then later be
   * processed after a batch flush has completed.
   */
  class ExceptionBufferingBatch extends AbstractBatchDecorator
  {
      /** @var array Array of BatchTransferException exceptions */
      protected $exceptions = array();
  
      public function flush()
      {
          $items = array();
  
          while (!$this->decoratedBatch->isEmpty()) {
              try {
                  $transferredItems = $this->decoratedBatch->flush();
              } catch (BatchTransferException $e) {
                  $this->exceptions[] = $e;
                  $transferredItems = $e->getTransferredItems();
              }
              $items = array_merge($items, $transferredItems);
          }
  
          return $items;
      }
  
      /**
       * Get the buffered exceptions
       *
       * @return array Array of BatchTransferException objects
       */
      public function getExceptions()
      {
          return $this->exceptions;
      }
  
      /**
       * Clear the buffered exceptions
       */
      public function clearExceptions()
      {
          $this->exceptions = array();
      }
  }