/usr/lib/python2.7/dist-packages/imposm/parser/xml/parser.py is in python-imposm-parser 1.0.7+ds-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | # Copyright 2011 Omniscale GmbH & Co. KG
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import with_statement
from marshal import dumps
from imposm.parser.xml.util import log_file_on_exception, iterparse
class XMLParser(object):
def __init__(self, nodes_callback=None, ways_callback=None,
relations_callback=None, coords_callback=None, nodes_tag_filter=None,
ways_tag_filter=None, relations_tag_filter=None, marshal_elem_data=False):
self.nodes_callback = nodes_callback
self.ways_callback = ways_callback
self.relations_callback = relations_callback
self.coords_callback = coords_callback
self.nodes_tag_filter = nodes_tag_filter
self.ways_tag_filter = ways_tag_filter
self.relations_tag_filter = relations_tag_filter
self.marshal_elem_data = marshal_elem_data
def parse(self, xml):
with log_file_on_exception(xml):
coords = []
nodes = []
ways = []
relations = []
tags = {}
refs = []
members = []
root, context = iterparse(xml)
for event, elem in context:
if event == 'start': continue
if elem.tag == 'tag':
tags[elem.attrib['k']] = elem.attrib['v']
elif elem.tag == 'node':
osmid = int(elem.attrib['id'])
x, y = float(elem.attrib['lon']), float(elem.attrib['lat'])
if self.coords_callback:
coords.append((osmid, x, y))
if self.nodes_tag_filter:
self.nodes_tag_filter(tags)
if tags and self.nodes_callback:
if self.marshal_elem_data:
nodes.append((osmid, dumps((tags, (x, y)), 2)))
else:
nodes.append((osmid, tags, (x, y)))
tags = {}
elif elem.tag == 'nd':
refs.append(int(elem.attrib['ref']))
elif elem.tag == 'member':
members.append((int(elem.attrib['ref']), elem.attrib['type'], elem.attrib['role']))
elif elem.tag == 'way':
osm_id = int(elem.attrib['id'])
if self.ways_tag_filter:
self.ways_tag_filter(tags)
if self.ways_callback:
if self.marshal_elem_data:
ways.append((osm_id, dumps((tags, refs), 2)))
else:
ways.append((osm_id, tags, refs))
refs = []
tags = {}
elif elem.tag == 'relation':
osm_id = int(elem.attrib['id'])
if self.relations_tag_filter:
self.relations_tag_filter(tags)
if tags and self.relations_callback:
if self.marshal_elem_data:
relations.append((osm_id, dumps((tags, members), 2)))
else:
relations.append((osm_id, tags, members))
members = []
tags = {}
if len(coords) >= 512:
self.coords_callback(coords)
coords = []
if len(nodes) >= 128:
self.nodes_callback(nodes)
nodes = []
if len(relations) >= 128:
self.relations_callback(relations)
relations = []
if len(ways) >= 128:
self.ways_callback(ways)
ways = []
root.clear()
if self.coords_callback:
self.coords_callback(coords)
if self.nodes_callback:
self.nodes_callback(nodes)
if self.ways_callback:
self.ways_callback(ways)
if self.relations_callback:
self.relations_callback(relations)
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