def _process_protocol_v2(self, argv, ifile, ofile):
        """ Processes records on the `input stream optionally writing records to the output stream.

        :param ifile: Input file object.
        :type ifile: file or InputType

        :param ofile: Output file object.
        :type ofile: file or OutputType

        :return: :const:`None`

        """
        debug = environment.splunklib_logger.debug
        class_name = self.__class__.__name__

        debug('%s.process started under protocol_version=2', class_name)
        self._protocol_version = 2

        # Read search command metadata from splunkd
        # noinspection PyBroadException
        try:
            debug('Reading metadata')
            metadata, body = self._read_chunk(ifile)

            action = getattr(metadata, 'action', None)

            if action != 'getinfo':
                raise RuntimeError('Expected getinfo action, not {}'.format(action))

            if len(body) > 0:
                raise RuntimeError('Did not expect data for getinfo action')

            self._metadata = deepcopy(metadata)

            searchinfo = self._metadata.searchinfo

            searchinfo.earliest_time = float(searchinfo.earliest_time)
            searchinfo.latest_time = float(searchinfo.latest_time)
            searchinfo.search = unquote(searchinfo.search)

            self._map_input_header()

            debug('  metadata=%r, input_header=%r', self._metadata, self._input_header)

            try:
                tempfile.tempdir = self._metadata.searchinfo.dispatch_dir
            except AttributeError:
                raise RuntimeError('%s.metadata.searchinfo.dispatch_dir is undefined'.format(class_name))

            debug('  tempfile.tempdir=%r', tempfile.tempdir)
        except:
            self._record_writer = RecordWriterV2(ofile)
            self._report_unexpected_error()
            self.finish()
            exit(1)

        # Write search command configuration for consumption by splunkd
        # noinspection PyBroadException
        try:
            self._record_writer = RecordWriterV2(ofile, getattr(self._metadata, 'maxresultrows', None))
            self.fieldnames = []
            self.options.reset()

            args = self.metadata.searchinfo.args
            error_count = 0

            debug('Parsing arguments')

            if args and type(args) == list:
                for arg in args:
                    result = arg.split('=', 1)
                    if len(result) == 1:
                        self.fieldnames.append(result[0])
                    else:
                        name, value = result
                        try:
                            option = self.options[name]
                        except KeyError:
                            self.write_error('Unrecognized option: {}={}'.format(name, value))
                            error_count += 1
                            continue
                        try:
                            option.value = value
                        except ValueError:
                            self.write_error('Illegal value: {}={}'.format(name, value))
                            error_count += 1
                            continue

            missing = self.options.get_missing()

            if missing is not None:
                if len(missing) == 1:
                    self.write_error('A value for "{}" is required'.format(missing[0]))
                else:
                    self.write_error('Values for these required options are missing: {}'.format(', '.join(missing)))
                error_count += 1

            if error_count > 0:
                exit(1)

            debug('  command: %s', unicode(self))

            debug('Preparing for execution')
            self.prepare()

            if self.record:

                ifile, ofile = self._prepare_recording(argv, ifile, ofile)
                self._record_writer.ofile = ofile

                # Record the metadata that initiated this command after removing the record option from args/raw_args

                info = self._metadata.searchinfo

                for attr in 'args', 'raw_args':
                    setattr(info, attr, [arg for arg in getattr(info, attr) if not arg.startswith('record=')])

                metadata = MetadataEncoder().encode(self._metadata)
                ifile.record('chunked 1.0,', unicode(len(metadata)), ',0\n', metadata)

            if self.show_configuration:
                self.write_info(self.name + ' command configuration: ' + str(self._configuration))

            debug('  command configuration: %s', self._configuration)

        except __HOLE__:
            self._record_writer.write_metadata(self._configuration)
            self.finish()
            raise
        except:
            self._record_writer.write_metadata(self._configuration)
            self._report_unexpected_error()
            self.finish()
            exit(1)

        self._record_writer.write_metadata(self._configuration)

        # Execute search command on data passing through the pipeline
        # noinspection PyBroadException
        try:
            debug('Executing under protocol_version=2')
            self._records = self._records_protocol_v2
            self._metadata.action = 'execute'
            self._execute(ifile, None)
        except SystemExit:
            self.finish()
            raise
        except:
            self._report_unexpected_error()
            self.finish()
            exit(1)

        debug('%s.process completed', class_name)
dataset/ETHPy150Open splunk/splunk-sdk-python/splunklib/searchcommands/search_command.py/SearchCommand._process_protocol_v2