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#![allow(dead_code)]
use crate::event::Event;
use crate::pipeline::EventParser;
use anyhow::Result;
use rhai::Dynamic;
pub struct ColsParser;
impl ColsParser {
pub fn new() -> Self {
Self
}
}
impl EventParser for ColsParser {
fn parse(&self, line: &str) -> Result<Event> {
// Split line on any whitespace and collect into vector
let fields: Vec<&str> = line.split_whitespace().collect();
// Create event with capacity for the fields
let mut event = Event::with_capacity(line.to_string(), fields.len());
// Set numbered columns c1, c2, c3, etc.
for (i, field) in fields.iter().enumerate() {
let field_name = format!("c{}", i + 1); // c1, c2, c3, ...
event.set_field(field_name, Dynamic::from(field.to_string()));
}
Ok(event)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::pipeline::EventParser;
#[test]
fn test_cols_parser_basic() {
let parser = ColsParser::new();
let test_line = "field1 field2 field3";
let result = EventParser::parse(&parser, test_line).unwrap();
// Should NOT have the line field (cols format only provides c1, c2, c3...)
assert!(result.fields.get("line").is_none());
// Should have numbered columns
assert_eq!(
result
.fields
.get("c1")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field1"
);
assert_eq!(
result
.fields
.get("c2")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field2"
);
assert_eq!(
result
.fields
.get("c3")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field3"
);
// Original line should be preserved
assert_eq!(result.original_line, test_line);
// No timestamp should be extracted automatically
assert_eq!(result.parsed_ts, None);
}
#[test]
fn test_cols_parser_single_field() {
let parser = ColsParser::new();
let test_line = "onlyfield";
let result = EventParser::parse(&parser, test_line).unwrap();
// Should have c1 only
assert_eq!(
result
.fields
.get("c1")
.unwrap()
.clone()
.into_string()
.unwrap(),
"onlyfield"
);
// c2 should not exist
assert!(result.fields.get("c2").is_none());
}
#[test]
fn test_cols_parser_empty_line() {
let parser = ColsParser::new();
let test_line = "";
let result = EventParser::parse(&parser, test_line).unwrap();
// Should have no fields for empty line
assert!(result.fields.get("line").is_none());
assert!(result.fields.get("c1").is_none());
}
#[test]
fn test_cols_parser_multiple_whitespace() {
let parser = ColsParser::new();
let test_line = "field1 field2\t\tfield3\n field4";
let result = EventParser::parse(&parser, test_line).unwrap();
// Should handle multiple whitespace types correctly
assert_eq!(
result
.fields
.get("c1")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field1"
);
assert_eq!(
result
.fields
.get("c2")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field2"
);
assert_eq!(
result
.fields
.get("c3")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field3"
);
assert_eq!(
result
.fields
.get("c4")
.unwrap()
.clone()
.into_string()
.unwrap(),
"field4"
);
}
#[test]
fn test_cols_parser_log_like_data() {
let parser = ColsParser::new();
let test_line = "2023-01-01 10:30:00 ERROR database connection_failed timeout=30s";
let result = EventParser::parse(&parser, test_line).unwrap();
// Should split into appropriate columns
assert_eq!(
result
.fields
.get("c1")
.unwrap()
.clone()
.into_string()
.unwrap(),
"2023-01-01"
);
assert_eq!(
result
.fields
.get("c2")
.unwrap()
.clone()
.into_string()
.unwrap(),
"10:30:00"
);
assert_eq!(
result
.fields
.get("c3")
.unwrap()
.clone()
.into_string()
.unwrap(),
"ERROR"
);
assert_eq!(
result
.fields
.get("c4")
.unwrap()
.clone()
.into_string()
.unwrap(),
"database"
);
assert_eq!(
result
.fields
.get("c5")
.unwrap()
.clone()
.into_string()
.unwrap(),
"connection_failed"
);
assert_eq!(
result
.fields
.get("c6")
.unwrap()
.clone()
.into_string()
.unwrap(),
"timeout=30s"
);
}
}