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use std::result::Result;
use std::vec::Vec;
use failure::Error;
use crate::error::ProtocolError;
use crate::primitive::Variant;
use crate::util;
use crate::{deserialize::Deserialize, serialize::Serialize};
use crate::message::handshake::{HandshakeDeserialize, HandshakeSerialize};
use crate::primitive::VariantMap;
impl HandshakeSerialize for VariantMap {
fn serialize<'a>(&'a self) -> Result<Vec<u8>, Error> {
let mut res: Vec<u8> = Vec::new();
for (k, v) in self {
let key = Variant::String(k.clone());
res.extend(key.serialize()?);
res.extend(v.serialize()?);
}
let len: i32 = (self.len() * 2).try_into().unwrap();
util::insert_bytes(0, &mut res, &mut (len).to_be_bytes());
return Ok(res);
}
}
impl HandshakeDeserialize for VariantMap {
fn parse(b: &[u8]) -> Result<(usize, Self), Error> {
let (_, len) = i32::parse(&b[0..4])?;
let mut pos: usize = 4;
let mut map = VariantMap::new();
for _ in 0..(len / 2) {
let (nlen, name) = Variant::parse(&b[pos..])?;
pos += nlen;
let (vlen, value) = Variant::parse(&b[pos..])?;
pos += vlen;
match name {
Variant::String(x) => map.insert(x, value),
Variant::ByteArray(x) => map.insert(x, value),
_ => bail!(ProtocolError::WrongVariant),
};
}
return Ok((pos, map));
}
}
#[test]
pub fn serialize_variantmap() {
let mut test_variantmap = VariantMap::new();
test_variantmap.insert("Configured".to_string(), Variant::bool(true));
let bytes = [
0, 0, 0, 2, 0, 0, 0, 10, 0, 0, 0, 0, 20, 0, 67, 0, 111, 0, 110, 0, 102, 0, 105, 0, 103, 0,
117, 0, 114, 0, 101, 0, 100, 0, 0, 0, 1, 0, 1,
]
.to_vec();
assert_eq!(
HandshakeSerialize::serialize(&test_variantmap).unwrap(),
bytes
);
}
#[test]
pub fn deserialize_variantmap() {
let test_bytes: &[u8] = &[
0, 0, 0, 2, 0, 0, 0, 10, 0, 0, 0, 0, 20, 0, 67, 0, 111, 0, 110, 0, 102, 0, 105, 0, 103, 0,
117, 0, 114, 0, 101, 0, 100, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1,
];
let mut test_variantmap = VariantMap::new();
test_variantmap.insert("Configured".to_string(), Variant::bool(true));
let (len, res): (usize, VariantMap) = HandshakeDeserialize::parse(test_bytes).unwrap();
assert_eq!(len, 39);
assert_eq!(res, test_variantmap);
}
#[test]
pub fn deserialize_variantmap_utf8() {
let test_bytes: &[u8] = &[
0, 0, 0, 2, 0, 0, 0, 12, 0, 0, 0, 0, 10, 67, 111, 110, 102, 105, 103, 117, 114, 101, 100,
0, 0, 0, 1, 0, 1, 0, 0, 0, 1,
];
let mut test_variantmap = VariantMap::new();
test_variantmap.insert("Configured".to_string(), Variant::bool(true));
let (len, res): (usize, VariantMap) = HandshakeDeserialize::parse(test_bytes).unwrap();
assert_eq!(len, 29);
assert_eq!(res, test_variantmap);
}
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