fluvio_types/
partition.rs

1#[derive(Debug, thiserror::Error)]
2pub enum PartitionError {
3    #[error("Invalid partition syntax: {0}")]
4    InvalidSyntax(String),
5}
6
7// returns a tuple (topic_name, idx)
8pub fn decompose_partition_name(partition_name: &str) -> Result<(String, i32), PartitionError> {
9    let dash_pos = partition_name.rfind('-');
10    if dash_pos.is_none() {
11        return Err(PartitionError::InvalidSyntax(partition_name.to_owned()));
12    }
13
14    let pos = dash_pos.unwrap();
15    if (pos + 1) >= partition_name.len() {
16        return Err(PartitionError::InvalidSyntax(partition_name.to_owned()));
17    }
18
19    let topic_name = &partition_name[..pos];
20    let idx_string = &partition_name[(pos + 1)..];
21    let idx = match idx_string.parse::<i32>() {
22        Ok(n) => n,
23        Err(_) => {
24            return Err(PartitionError::InvalidSyntax(partition_name.to_owned()));
25        }
26    };
27
28    Ok((topic_name.to_string(), idx))
29}
30
31pub fn create_partition_name(topic_name: &str, idx: &i32) -> String {
32    format!("{topic_name}-{idx}")
33}
fluvio_types/partition.rs

fluvio_types/
partition.rs
