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SmartRoadSense data exporter

This simple Python script is thought to make it easier to export SRS data for debugging and analysis purposes.

The script runs a query against the raw or the aggregated database. As the raw database is concerned, by default it queries the single_data table, but using the --old (or -O) option it can be set to use the single_data_old table instead. The current table is queried by using the --aggregate flag.

It requires the following environmental variables set:

  1. SRS_EXPORTER_HOST (default is 127.0.0.1)
  2. SRS_EXPORTER_DB_RAW (default is srs_raw_db)
  3. SRS_EXPORTER_DB_AGG (default is srs_agg_db)
  4. SRS_EXPORTER_USER (default is postgres)
  5. SRS_EXPORTER_PASS (default is postgres)
  6. SRS_EXPORTER_PORT (default is 5432)

The script's usage is quite straight forward:

Usage:
  exporter.py [OPTIONS]

Usage examples:
  exporter.py -l 10
  exporter.py --longitude 12.92290593 --latitude 43.74830223 -d 1000
  exporter.py -T 56237 --meta
  exporter.py -a -l 10
  exporter.py -O -A 2018-04-01 --before 2018-04-02

Options:
  -d --distance <int>      Distance in meters used for range queries
                           (Default:100).
  -t --latitude <float>    Latitude used for range queries.
  -g --longitude <float>   Longitude used for range queries.
  -A --after <datetime>    Selected rows have to be created after this
                           specific datetime value.
  -B --before <datetime>   Selected rows have to be created before this
                           specific datetime value.
  -T --track <track_id>    Track id of selected rows.
  -m --meta                If specified rows will be exported with their
                           track's metadata (NOTE: cause a JOIN).
  -o --output <filename>   Filename/path where results have to be written.
  -a --aggregate           If specified data will be queried from
                           the "current" table in the aggregate database.
  -O --Old                 If specified data will be queried from
                           the "single_data_old" table in the raw database.
  -l --limit <int>         Limit If specified data will be queried from
                           the "single_data_old" table in the raw database.
  --debug                  Print debug information.
  -h --help                Print this help.

Within Docker

Please consider using this script within a Docker container (see: Docker smartroadsense/dataexporter image)

When used within the Docker container linked above please note that the script will be in the /tmp/ directory and should be executed in this way in order to output results in the shared /data docker volume:

$ python exporter.py -o /data/data.csv [OTHER OPTIONS]