Jorge Samuel Mendes de Jesus
da267e9ed3
* squach contents new branch * source code explanations * flake8 * change in requirements * modified: docs/source/code.rst modified: docs/source/plugins.rst * modified: docs/source/code.rst modified: pygeoapi/formatter/csv_.py modified: pygeoapi/provider/geojson.py * changes requred in review code * modified: .travis.yml missing " * change file to use requirements-dev.txt modified: readthedocs.yml * flask_cors removal from requirements.txt * text changes
103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
# =================================================================
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#
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# Authors: Tom Kralidis <tomkralidis@gmail.com>
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#
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# Copyright (c) 2018 Tom Kralidis
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation
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# files (the "Software"), to deal in the Software without
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# restriction, including without limitation the rights to use,
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# copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following
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# conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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#
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# =================================================================
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import io
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import logging
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import unicodecsv as csv
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from pygeoapi.formatter.base import BaseFormatter
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LOGGER = logging.getLogger(__name__)
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class CSVFormatter(BaseFormatter):
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"""CSV formatter"""
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def __init__(self, formatter_def):
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"""
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Initialize object
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:param formatter_def: formatter definition
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:returns: `pygeoapi.formatter.csv_.CSVFormatter`
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"""
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geom = False
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if 'geom' in formatter_def:
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geom = formatter_def['geom']
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BaseFormatter.__init__(self, {'name': 'csv', 'geom': geom})
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self.mimetype = 'text/csv'
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def write(self, options={}, data=None):
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"""
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Generate data in CSV format
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:param options: CSV formatting options
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:param data: dict of GeoJSON data
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:returns: string representation of format
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"""
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is_point = False
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try:
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fields = list(data['features'][0]['properties'].keys())
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except IndexError:
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LOGGER.error('no features')
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return str()
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if self.geom:
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LOGGER.debug('Including point geometry')
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if data['features'][0]['geometry']['type'] == 'Point':
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fields.insert(0, 'x')
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fields.insert(1, 'y')
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is_point = True
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else:
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# TODO: implement wkt geometry serialization
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LOGGER.debug('not a point geometry, skipping')
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LOGGER.debug('CSV fields: {}'.format(fields))
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output = io.BytesIO()
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writer = csv.DictWriter(output, fields)
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writer.writeheader()
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for feature in data['features']:
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fp = feature['properties']
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if is_point:
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fp['x'] = feature['geometry']['coordinates'][0]
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fp['y'] = feature['geometry']['coordinates'][1]
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LOGGER.debug(fp)
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writer.writerow(fp)
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return output.getvalue()
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def __repr__(self):
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return '<CSVFormatter> {}'.format(self.mimetype)
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