event_store_adapter_rs/
serializer.rs

1use crate::types::{Aggregate, Event, EventStoreReadError, EventStoreWriteError};
2use std::fmt::Debug;
3
4pub trait EventSerializer<E: Event>: Debug + Send + Sync + 'static {
5  fn serialize(&self, event: &E) -> Result<Vec<u8>, EventStoreWriteError>;
6  fn deserialize(&self, data: &[u8]) -> Result<Box<E>, EventStoreReadError>;
7}
8
9#[derive(Debug)]
10pub struct JsonEventSerializer<E: Event> {
11  _phantom: std::marker::PhantomData<E>,
12}
13
14impl<E: Event> Default for JsonEventSerializer<E> {
15  fn default() -> Self {
16    JsonEventSerializer {
17      _phantom: std::marker::PhantomData,
18    }
19  }
20}
21
22impl<E: Event> EventSerializer<E> for JsonEventSerializer<E> {
23  fn serialize(&self, event: &E) -> Result<Vec<u8>, EventStoreWriteError> {
24    serde_json::to_vec(event).map_err(|e| EventStoreWriteError::SerializationError(e.into()))
25  }
26
27  fn deserialize(&self, data: &[u8]) -> Result<Box<E>, EventStoreReadError> {
28    serde_json::from_slice(data)
29      .map_err(|e| EventStoreReadError::DeserializationError(e.into()))
30      .map(Box::new)
31  }
32}
33
34pub trait SnapshotSerializer<A: Aggregate>: Debug + Send + Sync + 'static {
35  fn serialize(&self, aggregate: &A) -> Result<Vec<u8>, EventStoreWriteError>;
36  fn deserialize(&self, data: &[u8]) -> Result<Box<A>, EventStoreReadError>;
37}
38
39#[derive(Debug)]
40pub struct JsonSnapshotSerializer<A: Aggregate> {
41  _phantom: std::marker::PhantomData<A>,
42}
43
44impl<A: Aggregate> Default for JsonSnapshotSerializer<A> {
45  fn default() -> Self {
46    JsonSnapshotSerializer {
47      _phantom: std::marker::PhantomData,
48    }
49  }
50}
51
52impl<A: Aggregate> SnapshotSerializer<A> for JsonSnapshotSerializer<A> {
53  fn serialize(&self, aggregate: &A) -> Result<Vec<u8>, EventStoreWriteError> {
54    serde_json::to_vec(aggregate).map_err(|e| EventStoreWriteError::SerializationError(e.into()))
55  }
56
57  fn deserialize(&self, data: &[u8]) -> Result<Box<A>, EventStoreReadError> {
58    serde_json::from_slice(data)
59      .map_err(|e| EventStoreReadError::DeserializationError(e.into()))
60      .map(Box::new)
61  }
62}
event_store_adapter_rs/serializer.rs

event_store_adapter_rs/
serializer.rs
