Source code for pygeoapi.formatter.csv_

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# Authors: Tom Kralidis <[email protected]>
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# Copyright (c) 2018 Tom Kralidis
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import io
import logging

import unicodecsv as csv

from pygeoapi.formatter.base import BaseFormatter

LOGGER = logging.getLogger(__name__)


[docs]class CSVFormatter(BaseFormatter): """CSV formatter"""
[docs] def __init__(self, formatter_def): """ Initialize object :param formatter_def: formatter definition :returns: `pygeoapi.formatter.csv_.CSVFormatter` """ geom = False if 'geom' in formatter_def: geom = formatter_def['geom'] BaseFormatter.__init__(self, {'name': 'csv', 'geom': geom}) self.mimetype = 'text/csv'
[docs] def write(self, options={}, data=None): """ Generate data in CSV format :param options: CSV formatting options :param data: dict of GeoJSON data :returns: string representation of format """ is_point = False try: fields = list(data['features'][0]['properties'].keys()) except IndexError: LOGGER.error('no features') return str() if self.geom: LOGGER.debug('Including point geometry') if data['features'][0]['geometry']['type'] == 'Point': fields.insert(0, 'x') fields.insert(1, 'y') is_point = True else: # TODO: implement wkt geometry serialization LOGGER.debug('not a point geometry, skipping') LOGGER.debug('CSV fields: {}'.format(fields)) output = io.BytesIO() writer = csv.DictWriter(output, fields) writer.writeheader() for feature in data['features']: fp = feature['properties'] if is_point: fp['x'] = feature['geometry']['coordinates'][0] fp['y'] = feature['geometry']['coordinates'][1] LOGGER.debug(fp) writer.writerow(fp) return output.getvalue()
[docs] def __repr__(self): return '<CSVFormatter> {}'.format(self.mimetype)