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use serde::{Deserialize, Serialize};
use std::io;
use std::io::Write;
pub trait SerdeFormat: Send + Sync + Clone + 'static {
fn serialize_to_writer<W, T>(&self, writer: W, value: &T) -> io::Result<()>
where
W: Write,
T: ?Sized + Serialize;
// fn serialize_to_vec<T>(value: &T) -> io::Result<Vec<u8>>
// where
// T: ?Sized + Serialize;
fn deserialize_from_slice<'a, T>(&self, v: &'a [u8]) -> io::Result<T>
where
T: Deserialize<'a>;
// fn deserialize_from_reader<R, T>(&self, reader: R) -> io::Result<T>
// where
// R: Read,
// T: DeserializeOwned;
}
#[cfg(feature = "format_json")]
#[derive(Clone, Default, Debug)]
pub struct JsonFormat;
#[cfg(feature = "format_json")]
impl SerdeFormat for JsonFormat {
fn serialize_to_writer<W, T>(&self, writer: W, value: &T) -> io::Result<()>
where
W: Write,
T: ?Sized + Serialize,
{
Ok(serde_json::to_writer(writer, value)?)
}
// fn serialize_to_vec<T>(value: &T) -> io::Result<Vec<u8>>
// where
// T: ?Sized + Serialize,
// {
// Ok(serde_json::to_vec(value)?)
// }
fn deserialize_from_slice<'a, T>(&self, v: &'a [u8]) -> io::Result<T>
where
T: Deserialize<'a>,
{
Ok(serde_json::from_slice(v)?)
}
// fn deserialize_from_reader<R, T>(&self, reader: R) -> io::Result<T>
// where
// R: Read,
// T: DeserializeOwned,
// {
// Ok(serde_json::from_reader(reader)?)
// }
}
#[cfg(feature = "format_message_pack")]
#[derive(Clone, Debug)]
pub struct MessagePackFormat;
#[cfg(feature = "format_message_pack")]
impl SerdeFormat for MessagePackFormat {
fn serialize_to_writer<W, T>(&self, mut writer: W, value: &T) -> io::Result<()>
where
W: Write,
T: ?Sized + Serialize,
{
Ok(rmp_serde::encode::write(&mut writer, value).map_err(|err| io::Error::other(err))?)
}
// fn serialize_to_vec<T>(value: &T) -> io::Result<Vec<u8>>
// where
// T: ?Sized + Serialize,
// {
// Ok(rmp_serde::to_vec(value).map_err(|err| io::Error::other(err))?)
// }
fn deserialize_from_slice<'a, T>(&self, v: &'a [u8]) -> io::Result<T>
where
T: Deserialize<'a>,
{
Ok(rmp_serde::from_slice(v).map_err(|err| io::Error::other(err))?)
}
// fn deserialize_from_reader<R, T>(&self, reader: R) -> io::Result<T>
// where
// R: Read,
// T: DeserializeOwned,
// {
// Ok(rmp_serde::decode::from_read(reader).map_err(|err| io::Error::other(err))?)
// }
}