use std::io::Read;
use xml::reader::{EventReader, XmlEvent};
use super::*;
use crate::reader::{FromXML, ReaderError};
impl FromXML for Rels {
fn from_xml<R: Read>(reader: R) -> Result<Self, ReaderError> {
let parser = EventReader::new(reader);
let mut s = Self::default();
let mut depth = 0;
for e in parser {
match e {
Ok(XmlEvent::StartElement { attributes, .. }) => {
if depth == 1 {
let mut rel_type = "".to_owned();
let mut target = "".to_owned();
for attr in attributes {
let name: &str = &attr.name.local_name;
if name == "Type" {
rel_type = attr.value.clone();
} else if name == "Target" {
target = attr.value.clone();
}
}
s = s.add_rel(rel_type, target);
}
depth += 1;
}
Ok(XmlEvent::EndElement { .. }) => {
depth -= 1;
}
Err(_) => return Err(ReaderError::XMLReadError),
_ => {}
}
}
Ok(s)
}
}
#[cfg(test)]
mod tests {
use super::*;
#[cfg(test)]
use pretty_assertions::assert_eq;
#[test]
fn test_from_xml() {
let xml = r#"<?xml version="1.0" encoding="UTF-8"?>
<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml" />
</Relationships>"#;
let c = Rels::from_xml(xml.as_bytes()).unwrap();
let rels =
vec![
(
"http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties"
.to_owned(),
"rId1".to_owned(),
"docProps/core.xml".to_owned(),
)];
assert_eq!(Rels { rels }, c);
}
}