egml_io/base/
gml_name.rs

1use crate::Error;
2use egml_core::model::base::{AbstractGml, Id};
3use quick_xml::Reader;
4use quick_xml::events::Event;
5
6pub fn parse_abstract_gml(source_text: &str, id: Id) -> Result<AbstractGml, Error> {
7    let mut reader = Reader::from_str(source_text);
8    reader.config_mut().trim_text(true);
9
10    let mut names = Vec::new();
11
12    let mut buf = Vec::new();
13
14    loop {
15        match reader.read_event_into(&mut buf) {
16            Ok(Event::Start(e)) => match e.name().as_ref() {
17                b"gml:name" => {
18                    names.push(reader.read_text(e.name())?.to_string());
19                }
20                _ => {
21                    reader.read_to_end(e.name())?;
22                }
23            },
24            Ok(Event::Eof) => break,
25            Err(e) => return Err(Error::from(e)),
26            _ => (),
27        }
28    }
29
30    Ok(AbstractGml { id, name: names })
31}
32
33#[cfg(test)]
34mod tests {
35    use crate::base::gml_name::parse_abstract_gml;
36    use egml_core::model::base::Id;
37
38    #[test]
39    fn parsing_abstract_gml_with_two_names() {
40        let id = Id::from_hashed_string("test_id");
41        let source_text = "<gml:name>my_name_1</gml:name><gml:name>my_name_2</gml:name>";
42
43        let abstract_gml = parse_abstract_gml(source_text, id).expect("");
44        assert_eq!(abstract_gml.name, vec!["my_name_1", "my_name_2"]);
45    }
46
47    #[test]
48    fn parsing_abstract_gml_with_other_elements() {
49        let id = Id::from_hashed_string("test_id");
50        let source_text = "
51      <gml:name>0507</gml:name>
52      <gml:boundedBy>
53        <gml:Envelope srsName=\"urn:ogc:def:crs:EPSG::25832\" srsDimension=\"3\">
54          <gml:lowerCorner>690984.6702564997 5336061.499479238 507.40999999999997</gml:lowerCorner>
55          <gml:upperCorner>691088.7286507211 5336156.516425779 537.924940696475</gml:upperCorner>
56        </gml:Envelope>
57      </gml:boundedBy>";
58
59        let abstract_gml = parse_abstract_gml(source_text, id).expect("");
60        assert_eq!(abstract_gml.name, vec!["0507"]);
61    }
62
63    #[test]
64    fn parsing_nested_abstract_gml() {
65        let id = Id::from_hashed_string("test_id");
66        let source_text = "
67      <gml:name>0507</gml:name>
68      <con:Window>
69        <gml:name>window 23</gml:name>
70      </con:Window>";
71
72        let abstract_gml = parse_abstract_gml(source_text, id).expect("");
73        assert_eq!(abstract_gml.name.len(), 1);
74    }
75}
egml_io/base/gml_name.rs

egml_io/base/
gml_name.rs
