mf_model/
id_generator.rs

1use uuid::Uuid;
2use base62::encode;
3
4pub struct IdGenerator;
5
6impl IdGenerator {
7    pub fn get_id() -> Box<str> {
8        let uuid = Uuid::new_v4();
9        let num = u128::from_be_bytes(*uuid.as_bytes());
10        encode(num).into_boxed_str()
11    }
12}
13
14#[cfg(test)]
15mod tests {
16    use super::*;
17    use std::time::Instant;
18    #[test]
19    fn test_id_generation() {
20        let _id = IdGenerator::get_id();
21        println!("生成新ID: {_id:?}");
22    }
23    #[test]
24    fn test_id_generation_performance() {
25        const ITERATIONS: usize = 1_000_000;
26
27        // 测试新ID生成器性能
28        let start = Instant::now();
29        for _ in 0..ITERATIONS {
30            let _id = IdGenerator::get_id();
31        }
32        let new_duration = start.elapsed();
33
34        println!("生成 {ITERATIONS} 个新ID耗时: {new_duration:?}");
35        println!("平均每个ID生成时间: {:?}", new_duration / ITERATIONS as u32);
36    }
37
38    #[test]
39    fn test_id_uniqueness() {
40        const ITERATIONS: usize = 1_000_000;
41        let mut ids = std::collections::HashSet::with_capacity(ITERATIONS);
42
43        // 生成大量ID并检查唯一性
44        for _ in 0..ITERATIONS {
45            let id = IdGenerator::get_id();
46            assert!(ids.insert(id), "发现重复ID！");
47        }
48
49        println!("成功生成 {ITERATIONS} 个唯一ID");
50
51        // 计算碰撞概率
52        let total_possible = 32u64.pow(12);
53        let collision_probability =
54            1.0 - (1.0 - 1.0 / (total_possible as f64)).powi(ITERATIONS as i32);
55        println!("理论碰撞概率: {:.10}%", collision_probability * 100.0);
56    }
57}
mf_model/id_generator.rs

mf_model/
id_generator.rs
