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use std::io::{Read, Write};
pub mod raw;
#[cfg(feature = "bzip")]
pub mod bzip;
#[cfg(feature = "gzip")]
pub mod gzip;
#[cfg(feature = "lz")]
pub mod lz;
#[cfg(feature = "xz")]
pub mod xz;
pub trait Compression {
fn decoder<'a, R: Read + 'a>(&self, r: R) -> Box<Read + 'a>;
fn encoder<'a, W: Write + 'a>(&self, w: W) -> Box<Write + 'a>;
}
#[derive(Clone, Serialize, Deserialize, PartialEq, Debug)]
#[serde(rename_all = "lowercase")]
#[serde(tag = "type")]
pub enum CompressionType {
Raw(raw::RawCompression),
#[cfg(feature = "bzip")]
Bzip2(bzip::Bzip2Compression),
#[cfg(feature = "gzip")]
Gzip(gzip::GzipCompression),
#[cfg(feature = "lz")]
Lz4(lz::Lz4Compression),
#[cfg(feature = "xz")]
Xz(xz::XzCompression),
}
impl Compression for CompressionType {
fn decoder<'a, R: Read + 'a>(&self, r: R) -> Box<Read + 'a> {
#[allow(unreachable_patterns)]
match *self {
CompressionType::Raw(ref c) => c.decoder(r),
#[cfg(feature = "bzip")]
CompressionType::Bzip2(ref c) => c.decoder(r),
#[cfg(feature = "gzip")]
CompressionType::Gzip(ref c) => c.decoder(r),
#[cfg(feature = "xz")]
CompressionType::Xz(ref c) => c.decoder(r),
#[cfg(feature = "lz")]
CompressionType::Lz4(ref c) => c.decoder(r),
_ => unimplemented!(),
}
}
fn encoder<'a, W: Write + 'a>(&self, w: W) -> Box<Write + 'a> {
#[allow(unreachable_patterns)]
match *self {
CompressionType::Raw(ref c) => c.encoder(w),
#[cfg(feature = "bzip")]
CompressionType::Bzip2(ref c) => c.encoder(w),
#[cfg(feature = "gzip")]
CompressionType::Gzip(ref c) => c.encoder(w),
#[cfg(feature = "xz")]
CompressionType::Xz(ref c) => c.encoder(w),
#[cfg(feature = "lz")]
CompressionType::Lz4(ref c) => c.encoder(w),
_ => unimplemented!(),
}
}
}