decouple oneio from parser

the new `BgpkitParser::new_with_reader` allows parser to be used without oneio

Cargo.toml

@@ -54,7 +54,6 @@ default = ["parser", "rustls"]
 parser = [
  "bytes",
  "chrono",
- "env_logger",
  "regex",
 ]
 cli = [

src/error.rs

@@ -3,6 +3,7 @@ error module defines the error types used in bgpkit-parser.
 */
 use crate::models::{Afi, Bgp4MpType, BgpState, EntryType, Safi, TableDumpV2Type};
 use num_enum::TryFromPrimitiveError;
+#[cfg(feature = "oneio")]
 use oneio::OneIoError;
 use std::fmt::{Display, Formatter};
 use std::io::ErrorKind;
@@ -12,6 +13,7 @@ use std::{error::Error, fmt, io};
 pub enum ParserError {
  IoError(io::Error),
  EofError(io::Error),
+ #[cfg(feature = "oneio")]
  OneIoError(OneIoError),
  EofExpected,
  ParseError(String),
@@ -47,12 +49,14 @@ impl Display for ParserError {
  ParserError::TruncatedMsg(s) => write!(f, "Error: {}", s),
  ParserError::Unsupported(s) => write!(f, "Error: {}", s),
  ParserError::EofExpected => write!(f, "Error: reach end of file"),
+ #[cfg(feature = "oneio")]
  ParserError::OneIoError(e) => write!(f, "Error: {}", e),
  ParserError::FilterError(e) => write!(f, "Error: {}", e),
  }
  }
 }
 
+#[cfg(feature = "oneio")]
 impl From<OneIoError> for ParserErrorWithBytes {
  fn from(error: OneIoError) -> Self {
  ParserErrorWithBytes {
@@ -62,6 +66,7 @@ impl From<OneIoError> for ParserErrorWithBytes {
  }
 }
 
+#[cfg(feature = "oneio")]
 impl From<OneIoError> for ParserError {
  fn from(error: OneIoError) -> Self {
  ParserError::OneIoError(error)

src/parser/iters.rs

@@ -114,7 +114,9 @@ impl<R: Read> Iterator for RecordIterator<R> {
  }
  None
  }
- ParserError::OneIoError(_) | ParserError::FilterError(_) => {
+ #[cfg(feature = "oneio")]
+ ParserError::OneIoError(_) => None,
+ ParserError::FilterError(_) => {
  // this should not happen at this stage
  None
  }

src/parser/mod.rs

@@ -18,6 +18,7 @@ pub(crate) use self::utils::*;
 
 use crate::models::MrtRecord;
 pub use mrt::mrt_elem::Elementor;
+#[cfg(feature = "oneio")]
 use oneio::{get_cache_reader, get_reader};
 
 pub use crate::error::{ParserError, ParserErrorWithBytes};
@@ -48,7 +49,18 @@ impl Default for ParserOptions {
 }
 
 impl BgpkitParser<Box<dyn Read + Send>> {
+ /// Creating a new parser from an object that implements [Read] trait.
+ pub fn new_with_reader(reader: Box<dyn Read + Send>) -> Self {
+ BgpkitParser {
+ reader,
+ core_dump: false,
+ filters: vec![],
+ options: ParserOptions::default(),
+ }
+ }
+
  /// Creating a new parser from a object that implements [Read] trait.
+ #[cfg(feature = "oneio")]
  pub fn new(path: &str) -> Result<Self, ParserErrorWithBytes> {
  let reader = get_reader(path)?;
  Ok(BgpkitParser {
@@ -64,6 +76,7 @@ impl BgpkitParser<Box<dyn Read + Send>> {
  /// The cache file name is generated by the following format: `cache-<crc32 of file name>-<file name>`.
  /// For example, the remote file `http://archive.routeviews.org/route-views.chile/bgpdata/2023.03/RIBS/rib.20230326.0600.bz2`
  /// will be cached as `cache-682cb1eb-rib.20230326.0600.bz2` in the cache directory.
+ #[cfg(feature = "oneio")]
  pub fn new_cached(path: &str, cache_dir: &str) -> Result<Self, ParserErrorWithBytes> {
  let file_name = path.rsplit('/').next().unwrap().to_string();
  let new_file_name = format!(
@@ -80,6 +93,7 @@ impl BgpkitParser<Box<dyn Read + Send>> {
  }
 }
 
+#[cfg(feature = "oneio")]
 fn add_suffix_to_filename(filename: &str, suffix: &str) -> String {
  let mut parts: Vec<&str> = filename.split('.').collect(); // Split filename by dots
  if parts.len() > 1 {