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Add ResourceDef::resource_path_named() path generation method

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This commit is contained in:
Nikolay Kim 2019-12-31 18:02:43 +06:00
parent dcbcc40da2
commit 7dddeab2a8
2 changed files with 85 additions and 1 deletions
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4
router/CHANGES.txt
View File

@ -1,6 +1,8 @@
# Changes
## [0.2.4] - 2019-12-xx
## [0.2.4] - 2019-12-31
* Add `ResourceDef::resource_path_named()` path generation method
## [0.2.3] - 2019-12-25

82
router/src/resource.rs
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@ -1,4 +1,5 @@
use std::cmp::min;
use std::collections::HashMap;
use std::hash::{Hash, Hasher};
use regex::{escape, Regex, RegexSet};
@ -492,6 +493,41 @@ impl ResourceDef {
true
}
/// Build resource path from elements. Returns `true` on success.
pub fn resource_path_named<K, V, S>(
&self,
path: &mut String,
elements: &HashMap<K, V, S>,
) -> bool
where
K: std::borrow::Borrow<str> + Eq + Hash,
V: AsRef<str>,
S: std::hash::BuildHasher,
{
match self.tp {
PatternType::Prefix(ref p) => path.push_str(p),
PatternType::Static(ref p) => path.push_str(p),
PatternType::Dynamic(..) => {
for el in &self.elements {
match *el {
PatternElement::Str(ref s) => path.push_str(s),
PatternElement::Var(ref name) => {
if let Some(val) = elements.get(name) {
path.push_str(val.as_ref())
} else {
return false;
}
}
}
}
}
PatternType::DynamicSet(..) => {
return false;
}
}
true
}
fn parse_param(pattern: &str) -> (PatternElement, String, &str, bool) {
const DEFAULT_PATTERN: &str = "[^/]+";
const DEFAULT_PATTERN_TAIL: &str = ".*";
@ -858,4 +894,50 @@ mod tests {
assert_eq!(&path["name"], "test2");
assert_eq!(&path[0], "test2");
}
#[test]
fn test_resource_path() {
let mut s = String::new();
let resource = ResourceDef::new("/user/{item1}/test");
assert!(resource.resource_path(&mut s, &mut (&["user1"]).into_iter()));
assert_eq!(s, "/user/user1/test");
let mut s = String::new();
let resource = ResourceDef::new("/user/{item1}/{item2}/test");
assert!(resource.resource_path(&mut s, &mut (&["item", "item2"]).into_iter()));
assert_eq!(s, "/user/item/item2/test");
let mut s = String::new();
let resource = ResourceDef::new("/user/{item1}/{item2}");
assert!(resource.resource_path(&mut s, &mut (&["item", "item2"]).into_iter()));
assert_eq!(s, "/user/item/item2");
let mut s = String::new();
let resource = ResourceDef::new("/user/{item1}/{item2}/");
assert!(resource.resource_path(&mut s, &mut (&["item", "item2"]).into_iter()));
assert_eq!(s, "/user/item/item2/");
let mut s = String::new();
assert!(!resource.resource_path(&mut s, &mut (&["item"]).into_iter()));
let mut s = String::new();
assert!(resource.resource_path(&mut s, &mut (&["item", "item2"]).into_iter()));
assert_eq!(s, "/user/item/item2/");
assert!(!resource.resource_path(&mut s, &mut (&["item"]).into_iter()));
let mut s = String::new();
assert!(resource.resource_path(&mut s, &mut vec!["item", "item2"].into_iter()));
assert_eq!(s, "/user/item/item2/");
let mut map = HashMap::new();
map.insert("item1", "item");
let mut s = String::new();
assert!(!resource.resource_path_named(&mut s, &map));
let mut s = String::new();
map.insert("item2", "item2");
assert!(resource.resource_path_named(&mut s, &map));
assert_eq!(s, "/user/item/item2/");
}
}