c3p0_common 0.10.1

A good friend for r2d2
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

use crate::error::C3p0Error;
use serde_json::Value;

pub trait JsonCodec<DATA>: Clone
where
    DATA: serde::ser::Serialize + serde::de::DeserializeOwned,
{
    fn from_value(&self, value: Value) -> Result<DATA, C3p0Error>;
    fn to_value(&self, data: &DATA) -> Result<Value, C3p0Error>;
}

#[derive(Clone)]
pub struct DefaultJsonCodec {}

impl<DATA> JsonCodec<DATA> for DefaultJsonCodec
where
    DATA: serde::ser::Serialize + serde::de::DeserializeOwned,
{
    fn from_value(&self, value: Value) -> Result<DATA, C3p0Error> {
        serde_json::from_value::<DATA>(value).map_err(C3p0Error::from)
    }

    fn to_value(&self, data: &DATA) -> Result<Value, C3p0Error> {
        serde_json::to_value(data).map_err(C3p0Error::from)
    }
}