Skip to main content

made_core/value_objects/
execution_id.rs

1use std::fmt;
2
3use serde::{Deserialize, Serialize};
4
5use crate::error::DomainError;
6
7const MAX_EXECUTION_ID_LEN: usize = 128;
8
9/// Stable identity assigned by an execution adapter.
10#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
11#[serde(transparent)]
12pub struct ExecutionId(String);
13
14impl ExecutionId {
15    pub fn new(raw: impl Into<String>) -> Result<Self, DomainError> {
16        let raw = raw.into();
17        let value = raw.trim();
18        if value.is_empty() {
19            return Err(DomainError::EmptyField {
20                field: "execution.id",
21            });
22        }
23        if value.len() > MAX_EXECUTION_ID_LEN {
24            return Err(DomainError::FieldTooLong {
25                field: "execution.id",
26                actual: value.len(),
27                max: MAX_EXECUTION_ID_LEN,
28            });
29        }
30        Ok(Self(value.to_owned()))
31    }
32
33    #[must_use]
34    pub fn as_str(&self) -> &str {
35        &self.0
36    }
37}
38
39impl fmt::Display for ExecutionId {
40    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
41        formatter.write_str(self.as_str())
42    }
43}
44
45#[cfg(test)]
46mod tests {
47    use super::*;
48
49    #[test]
50    fn trims_and_keeps_a_valid_identity() {
51        assert_eq!(
52            ExecutionId::new(" invocation-1 ").unwrap().as_str(),
53            "invocation-1"
54        );
55    }
56
57    #[test]
58    fn rejects_an_empty_identity() {
59        assert!(matches!(
60            ExecutionId::new("  ").unwrap_err(),
61            DomainError::EmptyField {
62                field: "execution.id"
63            }
64        ));
65    }
66}