]> git.openstreetmap.org Git - nominatim.git/blobdiff - nominatim/nominatim.py
move indexing function into its own Python module
[nominatim.git] / nominatim / nominatim.py
index f46af9ffa6d652060d1221da83bfc4b8f2ef00b3..fdc2bcbaa99d5f627727968a5faba57c8242b5af 100755 (executable)
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #-----------------------------------------------------------------------------
-
-from argparse import ArgumentParser, RawDescriptionHelpFormatter, ArgumentTypeError
+from argparse import ArgumentParser, RawDescriptionHelpFormatter
 import logging
 import sys
-import re
 import getpass
-from datetime import datetime
-import select
-
-from indexer.progress import ProgressLogger
-from indexer.db import DBConnection, make_connection
-
-log = logging.getLogger()
-
-class RankRunner(object):
-    """ Returns SQL commands for indexing one rank within the placex table.
-    """
-
-    def __init__(self, rank):
-        self.rank = rank
-
-    def name(self):
-        return "rank {}".format(self.rank)
-
-    def sql_count_objects(self):
-        return """SELECT count(*) FROM placex
-                  WHERE rank_address = {} and indexed_status > 0
-               """.format(self.rank)
-
-    def sql_get_objects(self):
-        return """SELECT place_id FROM placex
-                  WHERE indexed_status > 0 and rank_address = {}
-                  ORDER BY geometry_sector""".format(self.rank)
-
-    def sql_index_place(self, ids):
-        return "UPDATE placex SET indexed_status = 0 WHERE place_id IN ({})"\
-               .format(','.join((str(i) for i in ids)))
-
-
-class InterpolationRunner(object):
-    """ Returns SQL commands for indexing the address interpolation table
-        location_property_osmline.
-    """
-
-    def name(self):
-        return "interpolation lines (location_property_osmline)"
-
-    def sql_count_objects(self):
-        return """SELECT count(*) FROM location_property_osmline
-                  WHERE indexed_status > 0"""
-
-    def sql_get_objects(self):
-        return """SELECT place_id FROM location_property_osmline
-                  WHERE indexed_status > 0
-                  ORDER BY geometry_sector"""
-
-    def sql_index_place(self, ids):
-        return """UPDATE location_property_osmline
-                  SET indexed_status = 0 WHERE place_id IN ({})"""\
-               .format(','.join((str(i) for i in ids)))
-
-class BoundaryRunner(object):
-    """ Returns SQL commands for indexing the administrative boundaries
-        of a certain rank.
-    """
-
-    def __init__(self, rank):
-        self.rank = rank
-
-    def name(self):
-        return "boundaries rank {}".format(self.rank)
-
-    def sql_count_objects(self):
-        return """SELECT count(*) FROM placex
-                  WHERE indexed_status > 0
-                    AND rank_search = {}
-                    AND class = 'boundary' and type = 'administrative'""".format(self.rank)
-
-    def sql_get_objects(self):
-        return """SELECT place_id FROM placex
-                  WHERE indexed_status > 0 and rank_search = {}
-                        and class = 'boundary' and type = 'administrative'
-                  ORDER BY partition, admin_level""".format(self.rank)
-
-    def sql_index_place(self, ids):
-        return "UPDATE placex SET indexed_status = 0 WHERE place_id IN ({})"\
-               .format(','.join((str(i) for i in ids)))
-
-class Indexer(object):
-    """ Main indexing routine.
-    """
-
-    def __init__(self, options):
-        self.minrank = max(1, options.minrank)
-        self.maxrank = min(30, options.maxrank)
-        self.conn = make_connection(options)
-        self.threads = [DBConnection(options) for i in range(options.threads)]
-
-    def index_boundaries(self):
-        log.warning("Starting indexing boundaries using {} threads".format(
-                      len(self.threads)))
-
-        for rank in range(max(self.minrank, 5), min(self.maxrank, 26)):
-            self.index(BoundaryRunner(rank))
-
-    def index_by_rank(self):
-        """ Run classic indexing by rank.
-        """
-        log.warning("Starting indexing rank ({} to {}) using {} threads".format(
-                 self.minrank, self.maxrank, len(self.threads)))
-
-        for rank in range(max(1, self.minrank), self.maxrank):
-            self.index(RankRunner(rank))
-
-
-        if self.maxrank == 30:
-            self.index(RankRunner(0), 20)
-            self.index(InterpolationRunner(), 20)
-
-        self.index(RankRunner(self.maxrank), 20)
-
-    def index(self, obj, batch=1):
-        """ Index a single rank or table. `obj` describes the SQL to use
-            for indexing. `batch` describes the number of objects that
-            should be processed with a single SQL statement
-        """
-        log.warning("Starting {}".format(obj.name()))
-
-        cur = self.conn.cursor()
-        cur.execute(obj.sql_count_objects())
-
-        total_tuples = cur.fetchone()[0]
-        log.debug("Total number of rows: {}".format(total_tuples))
-
-        cur.close()
-
-        progress = ProgressLogger(obj.name(), total_tuples)
-
-        if total_tuples > 0:
-            cur = self.conn.cursor(name='places')
-            cur.execute(obj.sql_get_objects())
-
-            next_thread = self.find_free_thread()
-            while True:
-                places = [p[0] for p in cur.fetchmany(batch)]
-                if len(places) == 0:
-                    break
-
-                log.debug("Processing places: {}".format(places))
-                thread = next(next_thread)
-
-                thread.perform(obj.sql_index_place(places))
-                progress.add(len(places))
-
-            cur.close()
-
-            for t in self.threads:
-                t.wait()
-
-        progress.done()
-
-    def find_free_thread(self):
-        """ Generator that returns the next connection that is free for
-            sending a query.
-        """
-        ready = self.threads
-        command_stat = 0
-
-        while True:
-            for thread in ready:
-                if thread.is_done():
-                    command_stat += 1
-                    yield thread
-
-            # refresh the connections occasionaly to avoid potential
-            # memory leaks in Postgresql.
-            if command_stat > 100000:
-                for t in self.threads:
-                    while not t.is_done():
-                        t.wait()
-                    t.connect()
-                command_stat = 0
-                ready = self.threads
-            else:
-                ready, _, _ = select.select(self.threads, [], [])
-
-        assert False, "Unreachable code"
 
+from indexer.indexer import Indexer
 
 def nominatim_arg_parser():
     """ Setup the command-line parser for the tool.
     """
-    def h(s):
-        return re.sub("\s\s+" , " ", s)
-
-    p = ArgumentParser(description="Indexing tool for Nominatim.",
-                       formatter_class=RawDescriptionHelpFormatter)
-
-    p.add_argument('-d', '--database',
-                   dest='dbname', action='store', default='nominatim',
-                   help='Name of the PostgreSQL database to connect to.')
-    p.add_argument('-U', '--username',
-                   dest='user', action='store',
-                   help='PostgreSQL user name.')
-    p.add_argument('-W', '--password',
-                   dest='password_prompt', action='store_true',
-                   help='Force password prompt.')
-    p.add_argument('-H', '--host',
-                   dest='host', action='store',
-                   help='PostgreSQL server hostname or socket location.')
-    p.add_argument('-P', '--port',
-                   dest='port', action='store',
-                   help='PostgreSQL server port')
-    p.add_argument('-b', '--boundary-only',
-                   dest='boundary_only', action='store_true',
-                   help='Only index administrative boundaries (ignores min/maxrank).')
-    p.add_argument('-r', '--minrank',
-                   dest='minrank', type=int, metavar='RANK', default=0,
-                   help='Minimum/starting rank.')
-    p.add_argument('-R', '--maxrank',
-                   dest='maxrank', type=int, metavar='RANK', default=30,
-                   help='Maximum/finishing rank.')
-    p.add_argument('-t', '--threads',
-                   dest='threads', type=int, metavar='NUM', default=1,
-                   help='Number of threads to create for indexing.')
-    p.add_argument('-v', '--verbose',
-                   dest='loglevel', action='count', default=0,
-                   help='Increase verbosity')
-
-    return p
+    parser = ArgumentParser(description="Indexing tool for Nominatim.",
+                            formatter_class=RawDescriptionHelpFormatter)
+
+    parser.add_argument('-d', '--database',
+                        dest='dbname', action='store', default='nominatim',
+                        help='Name of the PostgreSQL database to connect to.')
+    parser.add_argument('-U', '--username',
+                        dest='user', action='store',
+                        help='PostgreSQL user name.')
+    parser.add_argument('-W', '--password',
+                        dest='password_prompt', action='store_true',
+                        help='Force password prompt.')
+    parser.add_argument('-H', '--host',
+                        dest='host', action='store',
+                        help='PostgreSQL server hostname or socket location.')
+    parser.add_argument('-P', '--port',
+                        dest='port', action='store',
+                        help='PostgreSQL server port')
+    parser.add_argument('-b', '--boundary-only',
+                        dest='boundary_only', action='store_true',
+                        help='Only index administrative boundaries (ignores min/maxrank).')
+    parser.add_argument('-r', '--minrank',
+                        dest='minrank', type=int, metavar='RANK', default=0,
+                        help='Minimum/starting rank.')
+    parser.add_argument('-R', '--maxrank',
+                        dest='maxrank', type=int, metavar='RANK', default=30,
+                        help='Maximum/finishing rank.')
+    parser.add_argument('-t', '--threads',
+                        dest='threads', type=int, metavar='NUM', default=1,
+                        help='Number of threads to create for indexing.')
+    parser.add_argument('-v', '--verbose',
+                        dest='loglevel', action='count', default=0,
+                        help='Increase verbosity')
+
+    return parser
 
 if __name__ == '__main__':
-    logging.basicConfig(stream=sys.stderr, format='%(levelname)s: %(message)s')
-
-    options = nominatim_arg_parser().parse_args(sys.argv[1:])
+    OPTIONS = nominatim_arg_parser().parse_args(sys.argv[1:])
 
-    log.setLevel(max(3 - options.loglevel, 0) * 10)
+    logging.basicConfig(stream=sys.stderr, format='%(levelname)s: %(message)s',
+                        level=max(3 - OPTIONS.loglevel, 0) * 10)
 
-    options.password = None
-    if options.password_prompt:
-        password = getpass.getpass("Database password: ")
-        options.password = password
+    OPTIONS.password = None
+    if OPTIONS.password_prompt:
+        PASSWORD = getpass.getpass("Database password: ")
+        OPTIONS.password = PASSWORD
 
-    if options.boundary_only:
-        Indexer(options).index_boundaries()
+    if OPTIONS.boundary_only:
+        Indexer(OPTIONS).index_boundaries()
     else:
-        Indexer(options).index_by_rank()
+        Indexer(OPTIONS).index_by_rank()