Решение на упр.06 задача 1 от Ивайло Иванов
Резултати
- 4 точки от тестове
- 0 бонус точки
- 4 точки общо
- 4 успешни тест(а)
- 0 неуспешни тест(а)
Код
use std::collections::HashMap;
use std::error::Error;
use std::fs::{self, File};
use std::io::{self, BufRead, BufReader, Read};
use std::path::Path;
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
enum LogLevel {
Error,
Warn,
Info,
Debug,
}
impl LogLevel {
fn parse(s: &str) -> Result<LogLevel, ParseLogError> {
match s {
"ERROR" => Ok(LogLevel::Error),
"WARN" => Ok(LogLevel::Warn),
"INFO" => Ok(LogLevel::Info),
"DEBUG" => Ok(LogLevel::Debug),
_ => Err(ParseLogError::ParseLine),
}
}
}
#[derive(Debug)]
enum ParseLogError {
Read(io::Error),
ParseLine,
UnknownLevel(String),
}
impl From<io::Error> for ParseLogError {
fn from(e: io::Error) -> Self {
ParseLogError::Read(e)
}
}
struct AggregateInfo {
log_counts: HashMap<LogLevel, usize>,
skipped_files: Vec<String>,
}
fn aggregate_logs(dir: &Path) -> Result<AggregateInfo, Box<dyn Error>> {
let mut log_counts = HashMap::new();
let mut skipped_files = Vec::new();
for entry in fs::read_dir(dir)? {
let entry = entry?;
let path = entry.path();
let file_name = path.to_string_lossy().to_string();
if let Some("log") = path.extension().and_then(|s| s.to_str()) {
// файлът е log
} else {
skipped_files.push(file_name);
continue;
}
let file = match File::open(&path) {
Ok(f) => f,
Err(_) => {
skipped_files.push(file_name);
continue;
}
};
if let Err(_) = parse_log_file(file, &mut log_counts) {
skipped_files.push(file_name);
}
}
Ok(AggregateInfo {
log_counts,
skipped_files,
})
}
fn parse_log_file<R>(file: R, map: &mut HashMap<LogLevel, usize>) -> Result<(), ParseLogError>
where
R: Read,
{
let reader = BufReader::new(file);
for line in reader.lines() {
let line = line?;
if line.trim().is_empty() {
continue; //празните редове броят ли се за невалидни??
}
let mut parts = line.split_whitespace();
let level_str = parts
.next()
.ok_or_else(|| ParseLogError::ParseLine)?;
let level = LogLevel::parse(level_str)?;
*map.entry(level).or_insert(0) += 1;
}
Ok(())
}
Лог от изпълнението
Updating crates.io index
Locking 17 packages to latest compatible versions
Compiling proc-macro2 v1.0.103
Compiling quote v1.0.42
Compiling unicode-ident v1.0.22
Compiling futures-sink v0.3.31
Compiling futures-core v0.3.31
Compiling futures-channel v0.3.31
Compiling memchr v2.7.6
Compiling syn v2.0.110
Compiling futures-task v0.3.31
Compiling pin-utils v0.1.0
Compiling pin-project-lite v0.2.16
Compiling slab v0.4.11
Compiling futures-io v0.3.31
Compiling solution v0.1.0 (/tmp/d20251120-1757769-ggeb09/solution)
warning: enum `LogLevel` is never used
--> src/lib.rs:8:6
|
8 | enum LogLevel {
| ^^^^^^^^
|
= note: `#[warn(dead_code)]` on by default
warning: associated function `parse` is never used
--> src/lib.rs:16:8
|
15 | impl LogLevel {
| ------------- associated function in this implementation
16 | fn parse(s: &str) -> Result<LogLevel, ParseLogError> {
| ^^^^^
warning: field `0` is never read
--> src/lib.rs:29:10
|
29 | Read(io::Error),
| ---- ^^^^^^^^^
| |
| field in this variant
|
= note: `ParseLogError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
|
29 | Read(()),
| ~~
warning: variants `ParseLine` and `UnknownLevel` are never constructed
--> src/lib.rs:30:5
|
28 | enum ParseLogError {
| ------------- variants in this enum
29 | Read(io::Error),
30 | ParseLine,
| ^^^^^^^^^
31 | UnknownLevel(String),
| ^^^^^^^^^^^^
|
= note: `ParseLogError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
warning: struct `AggregateInfo` is never constructed
--> src/lib.rs:40:8
|
40 | struct AggregateInfo {
| ^^^^^^^^^^^^^
warning: function `aggregate_logs` is never used
--> src/lib.rs:45:4
|
45 | fn aggregate_logs(dir: &Path) -> Result<AggregateInfo, Box<dyn Error>> {
| ^^^^^^^^^^^^^^
warning: function `parse_log_file` is never used
--> src/lib.rs:80:4
|
80 | fn parse_log_file<R>(file: R, map: &mut HashMap<LogLevel, usize>) -> Result<(), ParseLogError>
| ^^^^^^^^^^^^^^
warning: `solution` (lib) generated 7 warnings
Compiling futures-macro v0.3.31
Compiling futures-util v0.3.31
Compiling futures-executor v0.3.31
Compiling futures v0.3.31
warning: field `0` is never read
--> tests/../src/lib.rs:29:10
|
29 | Read(io::Error),
| ---- ^^^^^^^^^
| |
| field in this variant
|
= note: `ParseLogError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
= note: `#[warn(dead_code)]` on by default
help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
|
29 | Read(()),
| ~~
warning: variant `UnknownLevel` is never constructed
--> tests/../src/lib.rs:31:5
|
28 | enum ParseLogError {
| ------------- variant in this enum
...
31 | UnknownLevel(String),
| ^^^^^^^^^^^^
|
= note: `ParseLogError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
warning: `solution` (test "solution_test") generated 2 warnings
Finished `test` profile [unoptimized + debuginfo] target(s) in 8.62s
Running tests/solution_test.rs (target/debug/deps/solution_test-f75e629a1d90e17c)
running 4 tests
test solution_test::test_parse_log_basic ... ok
test solution_test::test_aggregate ... ok
test solution_test::test_parse_log_big_data ... ok
test solution_test::test_parse_log_invalid ... ok
test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s