Commit graph

8 commits

Author SHA1 Message Date
Leonard Lyubich
307355f165 [] locode/airports: Scan csv table into memory
Scanning csv-table entries one-by-one takes significant time and system
resources. To speed up random access to table records, on the first call,
the table is pumped into memory (map). On subsequent calls, I/O operations
are not performed.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-10 20:18:06 +03:00
Leonard Lyubich
9a425924cf [] locode/boltdb: Replace all references to the City with Location
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-10 14:05:03 +03:00
Leonard Lyubich
0d2440649a [] locode/boltdb: Add option to enable read-only mode
Add ReadOnly function that returns Option that enables read-only mode in DB.
RO mode can be used by processes that won't modify the DB in order to not
acquire write flock.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-10 14:05:03 +03:00
Leonard Lyubich
04b06ba539 [] locode/boltdb: Add default timeout to open underlying BoltDB instance
Set timeout option of BoltDB Open operation to 3s in order to prevent
indefinite waiting for file lock.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-10 14:05:03 +03:00
Leonard Lyubich
f88e0866fe [] locode: Implement NeoFS location database based on BoltDB instance
Define NeoFS location database based on BoltDB. Implement methods to save
the record by key (Put) and to read the record by key (Get).

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-09 11:05:55 +03:00
Leonard Lyubich
9669afdfc7 [] locode: Implement polygons DB based on GeoJSON polygons
Define database of Earth's polygons in GeoJSON format. Implement resolving
of geo point to continent in which it is located through point-in-polygon
calculation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-09 11:05:55 +03:00
Leonard Lyubich
d8c3a0e4f5 [] locode: Implement csv OpenFlights airport database
Implement airport database based on csv OpenFlights table. Implement
UN/LOCODE entry matcher. Implement country namespace.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-09 11:05:55 +03:00
Leonard Lyubich
cdd1274e1c [] locode: Define the API of location database
Define structure of keys and records of the location database. Define the
interfaces of all components necessary for the formation of the database.
Implement the function of filling the database.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-09 11:05:55 +03:00