question: creates and invokes a url for uploading a large blob to google cloud storage . upon completion of the upload , a callback is made to the specified callbackurl . refer to blobstoreservice #createuploadurl . concode_field_sep Logger log concode_elem_sep int MAX_READING_LENGTH concode_field_sep void deleteFile concode_elem_sep boolean doesFileExistInGcs concode_elem_sep long getFileSize concode_elem_sep String writeImageDataToGcs concode_elem_sep List<List<String>> getGroupReceiverList
target: String function ( String arg0 ) { UploadOptions loc0 = UploadOptions . Builder . withDefaults ( ) . googleStorageBucketName ( Config . GCS_BUCKETNAME ) . maxUploadSizeBytes ( Const . SystemParams . MAX_FILE_LIMIT_FOR_BLOBSTOREAPI ) ; return BlobstoreServiceFactory . getBlobstoreService ( ) . createUploadUrl ( arg0 , loc0 ) ; }