Files
Nominatim/test/bdd/steps/osm_data.py
Sarah Hoffmann c48fb88e6b move interpolaton computation into indexing step
The interpolaton computation needs information from the osm2pgsql
slim tables which may not be available when the data is inserted.

Insertion now only adds a line with basic address information to
location_property_osmline. The line is then split during the
indexing, leading to more lines (which are complete in that case)
being inserted.

Fixes #598.
2017-02-26 16:46:41 +01:00

109 lines
4.1 KiB
Python

import subprocess
import tempfile
import random
import os
from nose.tools import * # for assert functions
@given(u'the (\d+ )?grid')
def define_node_grid(context, grid_step):
"""
Define a grid of node positions.
"""
if grid_step is not None:
grid_step = int(grd_step.strip())
else:
grid_step = 0.00001
context.osm.clear_grid()
i = 0
for h in context.table.headings:
if h.isdigit():
context.osm.add_grid_node(int(h), 0, i)
i += grid_step
x = grid_step
for r in context.table:
y = 0
for h in r:
if h.isdigit():
context.osm.add_grid_node(int(h), x, y)
y += grid_step
x += grid_step
@when(u'loading osm data')
def load_osm_file(context):
"""
Load the given data into a freshly created test data using osm2pgsql.
No further indexing is done.
The data is expected as attached text in OPL format.
"""
# create a OSM file in /tmp and import it
with tempfile.NamedTemporaryFile(dir='/tmp', suffix='.opl', delete=False) as fd:
fname = fd.name
for line in context.text.splitlines():
if line.startswith('n') and line.find(' x') < 0:
coord = context.osm.grid_node(int(line[1:].split(' ')[0]))
if coord is None:
coord = (random.random() * 360 - 180,
random.random() * 180 - 90)
line += " x%f y%f" % coord
fd.write(line.encode('utf-8'))
fd.write(b'\n')
context.nominatim.run_setup_script('import-data', osm_file=fname,
osm2pgsql_cache=300)
### reintroduce the triggers/indexes we've lost by having osm2pgsql set up place again
cur = context.db.cursor()
cur.execute("""CREATE TRIGGER place_before_delete BEFORE DELETE ON place
FOR EACH ROW EXECUTE PROCEDURE place_delete()""")
cur.execute("""CREATE TRIGGER place_before_insert BEFORE INSERT ON place
FOR EACH ROW EXECUTE PROCEDURE place_insert()""")
cur.execute("""CREATE UNIQUE INDEX idx_place_osm_unique on place using btree(osm_id,osm_type,class,type)""")
context.db.commit()
os.remove(fname)
@when(u'updating osm data')
def update_from_osm_file(context):
"""
Update a database previously populated with 'loading osm data'.
Needs to run indexing on the existing data first to yield the correct result.
The data is expected as attached text in OPL format.
"""
context.nominatim.run_setup_script('create-functions', 'create-partition-functions')
cur = context.db.cursor()
cur.execute("""insert into placex (osm_type, osm_id, class, type, name,
admin_level, housenumber, street, addr_place, isin, postcode,
country_code, extratags, geometry) select * from place""")
cur.execute(
"""insert into location_property_osmline
(osm_id, interpolationtype, street, addr_place,
postcode, calculated_country_code, linegeo)
SELECT osm_id, housenumber, street, addr_place,
postcode, country_code, geometry from place
WHERE class='place' and type='houses' and osm_type='W'
and ST_GeometryType(geometry) = 'ST_LineString'""")
context.db.commit()
context.nominatim.run_setup_script('index', 'index-noanalyse')
context.nominatim.run_setup_script('create-functions', 'create-partition-functions',
'enable-diff-updates')
# create a OSM file in /tmp and import it
with tempfile.NamedTemporaryFile(dir='/tmp', suffix='.opl', delete=False) as fd:
fname = fd.name
for line in context.text.splitlines():
if line.startswith('n') and line.find(' x') < 0:
line += " x%d y%d" % (random.random() * 360 - 180,
random.random() * 180 - 90)
fd.write(line.encode('utf-8'))
fd.write(b'\n')
context.nominatim.run_update_script(import_diff=fname)
os.remove(fname)