


from abc import ABC, abstractmethod
from argparse import ArgumentParser



class      a    (		_a	):


     """simple docstring"""






     @staticmethod
     @abstractmethod
     def 			lowerCamelCase__			(    snake_case					:		ArgumentParser      )						->							Any:
          raise NotImplementedError()






     @abstractmethod
     def 			lowerCamelCase__			(    self					:		Optional[Any]      )						->							Optional[int]:
          raise NotImplementedError()



'''simple docstring'''



import io
import itertools
import json
from dataclasses import dataclass
from typing import Optional

import pyarrow as pa
import pyarrow.json as paj

import datasets
from datasets.table import table_cast
from datasets.utils.file_utils import readline


__UpperCAmelCase      :int			    =       datasets.utils.logging.get_logger(__name__)



@dataclass
class      a    (		datasets.BuilderConfig	):


     """simple docstring"""






     SCREAMING_SNAKE_CASE	:			Optional[datasets.Features]							       =       None
     SCREAMING_SNAKE_CASE	:			str							       =       "utf-8"
     SCREAMING_SNAKE_CASE	:			Optional[str]							       =       None
     SCREAMING_SNAKE_CASE	:			Optional[str]							       =       None
     SCREAMING_SNAKE_CASE	:			bool							       =       True  # deprecated
     SCREAMING_SNAKE_CASE	:			Optional[int]							       =       None  # deprecated
     SCREAMING_SNAKE_CASE	:			int							       =       1_0 << 2_0  # 10MB
     SCREAMING_SNAKE_CASE	:			Optional[bool]							       =       None



class      a    (		datasets.ArrowBasedBuilder	):


     """simple docstring"""






     SCREAMING_SNAKE_CASE	:			Tuple							       =       JsonConfig

     def 			lowerCamelCase__			(    self					:		Union[str, Any]      )						->							Dict:
          if self.config.block_size is not None:
               logger.warning('''The JSON loader parameter `block_size` is deprecated. Please use `chunksize` instead'''      )
               __UpperCAmelCase     :			Tuple  							=      self.config.block_size
          if self.config.use_threads is not True:
               logger.warning(
                   '''The JSON loader parameter `use_threads` is deprecated and doesn\'t have any effect anymore.'''      )
          if self.config.newlines_in_values is not None:
               raise ValueError('''The JSON loader parameter `newlines_in_values` is no longer supported'''      )
          return datasets.DatasetInfo(features=self.config.features      )

     def 			lowerCamelCase__			(    self					:		Dict							,			snake_case					:		Tuple      )						->							str:
          if not self.config.data_files:
               raise ValueError(f'At least one data file must be specified, but got data_files={self.config.data_files}'      )
          __UpperCAmelCase     :			Optional[int]  							=      dl_manager.download_and_extract(self.config.data_files      )
          if isinstance(snake_case							,			(str, list, tuple)      ):
               __UpperCAmelCase     :			Dict  							=      data_files
               if isinstance(snake_case							,			snake_case      ):
                    __UpperCAmelCase     :			List[Any]  							=      [files]
               __UpperCAmelCase     :			Tuple  							=      [dl_manager.iter_files(snake_case      ) for file in files]
               return [datasets.SplitGenerator(name=datasets.Split.TRAIN							,			gen_kwargs={'''files''': files}      )]
          __UpperCAmelCase     :			Tuple  							=      []
          for split_name, files in data_files.items():
               if isinstance(snake_case							,			snake_case      ):
                    __UpperCAmelCase     :			Any  							=      [files]
               __UpperCAmelCase     :			Optional[int]  							=      [dl_manager.iter_files(snake_case      ) for file in files]
               splits.append(datasets.SplitGenerator(name=snake_case							,			gen_kwargs={'''files''': files}      )      )
          return splits

     def 			lowerCamelCase__			(    self					:		List[str]							,			snake_case					:		pa.Table      )						->							pa.Table:
          if self.config.features is not None:
               # adding missing columns
               for column_name in set(self.config.features      ) - set(pa_table.column_names      ):
                    __UpperCAmelCase     :			Any  							=      self.config.features.arrow_schema.field(snake_case      ).type
                    __UpperCAmelCase     :			Dict  							=      pa_table.append_column(snake_case							,			pa.array([None] * len(snake_case      )							,			type=snake_case      )      )
               # more expensive cast to support nested structures with keys in a different order
               # allows str <-> int/float or str to Audio for example
               __UpperCAmelCase     :			Tuple  							=      table_cast(snake_case							,			self.config.features.arrow_schema      )
          return pa_table






     def 			lowerCamelCase__			(    self					:		Tuple							,			snake_case					:		Any      )						->							Optional[int]:
          for file_idx, file in enumerate(itertools.chain.from_iterable(snake_case      )      ):
               # If the file is one json object and if we need to look at the list of items in one specific field
               if self.config.field is not None:
                    with open(snake_case							,			encoding=self.config.encoding							,			errors=self.config.encoding_errors      ) as f:
                         __UpperCAmelCase     :			Optional[int]  							=      json.load(snake_case      )

                    # We keep only the field we are interested in
                    __UpperCAmelCase     :			int  							=      dataset[self.config.field]

                    # We accept two format: a list of dicts or a dict of lists
                    if isinstance(snake_case							,			(list, tuple)      ):
                         __UpperCAmelCase     :			Optional[Any]  							=      set().union(*[row.keys() for row in dataset]      )
                         __UpperCAmelCase     :			Union[str, Any]  							=      {col: [row.get(snake_case      ) for row in dataset] for col in keys}
                    else:
                         __UpperCAmelCase     :			Optional[int]  							=      dataset
                    __UpperCAmelCase     :			Tuple  							=      pa.Table.from_pydict(snake_case      )
                    yield file_idx, self._cast_table(snake_case      )

               # If the file has one json object per line
               else:
                    with open(snake_case							,			'''rb'''      ) as f:
                         __UpperCAmelCase     :			Optional[Any]  							=      0
                         # Use block_size equal to the chunk size divided by 32 to leverage multithreading
                         # Set a default minimum value of 16kB if the chunk size is really small
                         __UpperCAmelCase     :			int  							=      max(self.config.chunksize // 32							,			16 << 10      )
                         __UpperCAmelCase     :			Any  							=      (
                             self.config.encoding_errors if self.config.encoding_errors is not None else '''strict'''
                         )
                         while True:
                              __UpperCAmelCase     :			List[Any]  							=      f.read(self.config.chunksize      )
                              if not batch:
                                   break
                              # Finish current line
                              try:
                                   batch += f.readline()
                              except (AttributeError, io.UnsupportedOperation):
                                   batch += readline(snake_case      )
                              # PyArrow only accepts utf-8 encoded bytes
                              if self.config.encoding != "utf-8":
                                   __UpperCAmelCase     :			Union[str, Any]  							=      batch.decode(self.config.encoding							,			errors=snake_case      ).encode('''utf-8'''      )
                              try:
                                   while True:
                                        try:
                                             __UpperCAmelCase     :			List[str]  							=      paj.read_json(
                                                 io.BytesIO(snake_case      )							,			read_options=paj.ReadOptions(block_size=snake_case      )      )
                                             break
                                        except (pa.ArrowInvalid, pa.ArrowNotImplementedError) as e:
                                             if (
                                                 isinstance(snake_case							,			pa.ArrowInvalid      )
                                                 and "straddling" not in str(snake_case      )
                                                 or block_size > len(snake_case      )
                                             ):
                                                  raise
                                             else:
                                                  # Increase the block size in case it was too small.
                                                  # The block size will be reset for the next file.
                                                  logger.debug(
                                                      f'Batch of {len(snake_case      )} bytes couldn\'t be parsed with block_size={block_size}. Retrying with block_size={block_size * 2}.'      )
                                                  block_size *= 2
                              except pa.ArrowInvalid as e:
                                   try:
                                        with open(
                                            snake_case							,			encoding=self.config.encoding							,			errors=self.config.encoding_errors      ) as f:
                                             __UpperCAmelCase     :			Optional[Any]  							=      json.load(snake_case      )
                                   except json.JSONDecodeError:
                                        logger.error(f'Failed to read file \'{file}\' with error {type(snake_case      )}: {e}'      )
                                        raise e
                                   # If possible, parse the file as a list of json objects and exit the loop
                                   if isinstance(snake_case							,			snake_case      ):  # list is the only sequence type supported in JSON
                                        try:
                                             __UpperCAmelCase     :			Dict  							=      set().union(*[row.keys() for row in dataset]      )
                                             __UpperCAmelCase     :			Optional[Any]  							=      {col: [row.get(snake_case      ) for row in dataset] for col in keys}
                                             __UpperCAmelCase     :			Union[str, Any]  							=      pa.Table.from_pydict(snake_case      )
                                        except (pa.ArrowInvalid, AttributeError) as e:
                                             logger.error(f'Failed to read file \'{file}\' with error {type(snake_case      )}: {e}'      )
                                             raise ValueError(f'Not able to read records in the JSON file at {file}.'      ) from None
                                        yield file_idx, self._cast_table(snake_case      )
                                        break
                                   else:
                                        logger.error(f'Failed to read file \'{file}\' with error {type(snake_case      )}: {e}'      )
                                        raise ValueError(
                                            f'Not able to read records in the JSON file at {file}. '
                                            f'You should probably indicate the field of the JSON file containing your records. '
                                            f'This JSON file contain the following fields: {str(list(dataset.keys()      )      )}. '
                                            f'Select the correct one and provide it as `field=\'XXX\'` to the dataset loading method. '      ) from None
                        # Uncomment for debugging (will print the Arrow table size and elements)
                        # logger.warning(f"pa_table: {pa_table} num rows: {pa_table.num_rows}")
                        # logger.warning('\n'.join(str(pa_table.slice(i, 1).to_pydict()) for i in range(pa_table.num_rows)))
                              yield (file_idx, batch_idx), self._cast_table(snake_case      )
                              batch_idx += 1