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use std::marker::PhantomData;
use serde::Deserialize;
use crate::dataflow::{graph::default_graph, Data};
use super::{ReadStream, StreamId};
pub struct LoopStream<D: Data>
where
for<'a> D: Data + Deserialize<'a>,
{
id: StreamId,
name: String,
phantom: PhantomData<D>,
}
impl<D> LoopStream<D>
where
for<'a> D: Data + Deserialize<'a>,
{
pub fn new() -> Self {
let id = StreamId::new_deterministic();
LoopStream::new_internal(id, id.to_string())
}
pub fn new_with_name(name: &str) -> Self {
LoopStream::new_internal(StreamId::new_deterministic(), name.to_string())
}
fn new_internal(id: StreamId, name: String) -> Self {
let loop_stream = Self {
id,
name,
phantom: PhantomData,
};
default_graph::add_loop_stream(&loop_stream);
loop_stream
}
pub fn get_id(&self) -> StreamId {
self.id
}
pub fn get_name(&self) -> &str {
&self.name[..]
}
pub fn set(&self, stream: &ReadStream<D>) {
default_graph::add_stream_alias(self.id, stream.get_id()).unwrap();
}
}