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"""
Node operations for the OpenStreetMap API.
"""
from typing import Any, Optional, TYPE_CHECKING, cast
from xml.dom.minidom import Element
from . import dom
if TYPE_CHECKING:
from .OsmApi import OsmApi
class NodeMixin:
"""Mixin providing node-related operations with pythonic method names."""
def node_get(
self: "OsmApi", node_id: int, node_version: int = -1
) -> dict[str, Any]:
"""
Returns node with `node_id` as a dict:
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': {},
'changeset': id of changeset of last change,
'version': version number of node,
'user': username of user that made the last change,
'uid': id of user that made the last change,
'timestamp': timestamp of last change,
'visible': True|False
}
If `node_version` is supplied, this specific version is returned,
otherwise the latest version is returned.
If the requested element has been deleted,
`OsmApi.ElementDeletedApiError` is raised.
If the requested element can not be found,
`OsmApi.ElementNotFoundApiError` is raised.
"""
uri = f"/api/0.6/node/{node_id}"
if node_version != -1:
uri += f"/{node_version}"
data = self._session._get(uri)
node_element = cast(
Element, dom.OsmResponseToDom(data, tag="node", single=True)
)
return dom.dom_parse_node(node_element)
def node_create(
self: "OsmApi", node_data: dict[str, Any]
) -> Optional[dict[str, Any]]:
"""
Creates a node based on the supplied `node_data` dict:
#!python
{
'lat': latitude of node,
'lon': longitude of node,
'tag': {},
}
Returns updated `node_data` (without timestamp):
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': dict of tags,
'changeset': id of changeset of last change,
'version': version number of node,
'user': username of last change,
'uid': id of user of last change,
'visible': True|False
}
If no authentication information are provided,
`OsmApi.UsernamePasswordMissingError` is raised.
If there is no open changeset,
`OsmApi.NoChangesetOpenError` is raised.
If the supplied information contain an existing node,
`OsmApi.OsmTypeAlreadyExistsError` is raised.
If the changeset is already closed,
`OsmApi.ChangesetClosedApiError` is raised.
"""
return self._do("create", "node", node_data)
def node_update(
self: "OsmApi", node_data: dict[str, Any]
) -> Optional[dict[str, Any]]:
"""
Updates node with the supplied `node_data` dict:
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': {},
'version': version number of node,
}
Returns updated `node_data` (without timestamp):
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': dict of tags,
'changeset': id of changeset of last change,
'version': version number of node,
'user': username of last change,
'uid': id of user of last change,
'visible': True|False
}
If no authentication information are provided,
`OsmApi.UsernamePasswordMissingError` is raised.
If there is no open changeset,
`OsmApi.NoChangesetOpenError` is raised.
If there is already an open changeset,
`OsmApi.ChangesetAlreadyOpenError` is raised.
If the changeset is already closed,
`OsmApi.ChangesetClosedApiError` is raised.
"""
return self._do("modify", "node", node_data)
def node_delete(
self: "OsmApi", node_data: dict[str, Any]
) -> Optional[dict[str, Any]]:
"""
Delete node with `node_data`:
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': dict of tags,
'version': version number of node,
}
Returns updated `node_data` (without timestamp):
#!python
{
'id': id of node,
'lat': latitude of node,
'lon': longitude of node,
'tag': dict of tags,
'changeset': id of changeset of last change,
'version': version number of node,
'user': username of last change,
'uid': id of user of last change,
'visible': True|False
}
If no authentication information are provided,
`OsmApi.UsernamePasswordMissingError` is raised.
If there is no open changeset,
`OsmApi.NoChangesetOpenError` is raised.
If the changeset is already closed,
`OsmApi.ChangesetClosedApiError` is raised.
"""
return self._do("delete", "node", node_data)
def node_history(self: "OsmApi", node_id: int) -> dict[int, dict[str, Any]]:
"""
Returns dict with version as key:
#!python
{
1: dict of node version 1,
2: dict of node version 2,
...
}
If the requested element can not be found,
`OsmApi.ElementNotFoundApiError` is raised.
"""
uri = f"/api/0.6/node/{node_id}/history"
data = self._session._get(uri)
node_list = cast(list[Element], dom.OsmResponseToDom(data, tag="node"))
result = {}
for node in node_list:
node_data = dom.dom_parse_node(node)
result[node_data["version"]] = node_data
return result
def node_ways(self: "OsmApi", node_id: int) -> list[dict[str, Any]]:
"""
Returns list of dicts of ways that use the node with `node_id`:
#!python
[
{
'id': id of way,
'nd': list of node ids,
'tag': dict of tags,
'changeset': id of changeset of last change,
'version': version number of way,
'user': username of user that made the last change,
'uid': id of user that made the last change,
'timestamp': timestamp of last change,
'visible': True|False
},
...
]
If the requested element can not be found,
`OsmApi.ElementNotFoundApiError` is raised.
"""
uri = f"/api/0.6/node/{node_id}/ways"
data = self._session._get(uri)
way_list = cast(
list[Element], dom.OsmResponseToDom(data, tag="way", allow_empty=True)
)
return [dom.dom_parse_way(way) for way in way_list]
def node_relations(self: "OsmApi", node_id: int) -> list[dict[str, Any]]:
"""
Returns list of dicts of relations that use the node with `node_id`:
#!python
[
{
'id': id of relation,
'member': [
{
'ref': reference id,
'role': role,
'type': node|way|relation
},
...
],
'tag': dict of tags,
'changeset': id of changeset of last change,
'version': version number of relation,
'user': username of user that made the last change,
'uid': id of user that made the last change,
'timestamp': timestamp of last change,
'visible': True|False
},
...
]
If the requested element can not be found,
`OsmApi.ElementNotFoundApiError` is raised.
"""
uri = f"/api/0.6/node/{node_id}/relations"
data = self._session._get(uri)
relation_list = cast(
list[Element], dom.OsmResponseToDom(data, tag="relation", allow_empty=True)
)
return [dom.dom_parse_relation(rel) for rel in relation_list]
def nodes_get(self: "OsmApi", node_id_list: list[int]) -> dict[int, dict[str, Any]]:
"""
Returns dict with id as key:
#!python
{
node_id: dict of node,
...
}
If the requested element can not be found,
`OsmApi.ElementNotFoundApiError` is raised.
"""
nodes = ",".join([str(x) for x in node_id_list])
uri = f"/api/0.6/nodes?nodes={nodes}"
data = self._session._get(uri)
node_list = cast(list[Element], dom.OsmResponseToDom(data, tag="node"))
result = {}
for node in node_list:
node_data = dom.dom_parse_node(node)
result[node_data["id"]] = node_data
return result
|
