mirror of
https://github.com/osm-search/Nominatim.git
synced 2025-01-08 14:38:32 +03:00
86 lines
3.2 KiB
Python
86 lines
3.2 KiB
Python
import tempfile
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import random
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import os
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def write_opl_file(opl, grid):
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""" Create a temporary OSM file from OPL and return the file name. It is
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the responsibility of the caller to delete the file again.
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Node with missing coordinates, can retrieve their coordinates from
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a supplied grid. Failing that a random coordinate is assigned.
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"""
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with tempfile.NamedTemporaryFile(suffix='.opl', delete=False) as fd:
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for line in opl.splitlines():
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if line.startswith('n') and line.find(' x') < 0:
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coord = grid.grid_node(int(line[1:].split(' ')[0]))
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if coord is None:
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coord = (random.random() * 360 - 180,
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random.random() * 180 - 90)
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line += " x%f y%f" % coord
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fd.write(line.encode('utf-8'))
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fd.write(b'\n')
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return fd.name
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@given(u'the scene (?P<scene>.+)')
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def set_default_scene(context, scene):
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context.scene = scene
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@given(u'the ([0-9.]+ )?grid')
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def define_node_grid(context, grid_step):
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"""
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Define a grid of node positions.
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Use a table to define the grid. The nodes must be integer ids. Optionally
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you can give the grid distance. The default is 0.00001 degrees.
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"""
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if grid_step is not None:
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grid_step = float(grid_step.strip())
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else:
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grid_step = 0.00001
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context.osm.set_grid([context.table.headings] + [list(h) for h in context.table],
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grid_step)
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@when(u'loading osm data')
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def load_osm_file(context):
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"""
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Load the given data into a freshly created test data using osm2pgsql.
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No further indexing is done.
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The data is expected as attached text in OPL format.
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"""
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# create an OSM file and import it
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fname = write_opl_file(context.text, context.osm)
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context.nominatim.run_setup_script('import-data', osm_file=fname,
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osm2pgsql_cache=300)
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os.remove(fname)
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### reintroduce the triggers/indexes we've lost by having osm2pgsql set up place again
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cur = context.db.cursor()
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cur.execute("""CREATE TRIGGER place_before_delete BEFORE DELETE ON place
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FOR EACH ROW EXECUTE PROCEDURE place_delete()""")
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cur.execute("""CREATE TRIGGER place_before_insert BEFORE INSERT ON place
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FOR EACH ROW EXECUTE PROCEDURE place_insert()""")
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cur.execute("""CREATE UNIQUE INDEX idx_place_osm_unique on place using btree(osm_id,osm_type,class,type)""")
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context.db.commit()
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@when(u'updating osm data')
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def update_from_osm_file(context):
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"""
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Update a database previously populated with 'loading osm data'.
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Needs to run indexing on the existing data first to yield the correct result.
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The data is expected as attached text in OPL format.
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"""
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context.nominatim.copy_from_place(context.db)
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context.nominatim.run_setup_script('index', 'index-noanalyse')
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context.nominatim.run_setup_script('create-functions', 'create-partition-functions',
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'enable-diff-updates')
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# create an OSM file and import it
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fname = write_opl_file(context.text, context.osm)
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context.nominatim.run_update_script(import_diff=fname)
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os.remove(fname)
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