1 files changed, 67 insertions, 0 deletions
diff --git a/core/src/data/message/traits.rs b/core/src/data/message/traits.rs
new file mode 100644
index 0000000..c4b3af4
--- /dev/null
+++ b/core/src/data/message/traits.rs
@@ -0,0 +1,67 @@
+use std::collections::{HashMap, VecDeque};
+use std::fmt::Debug;
+use std::hash::Hash;
+use bincode::{Decode, Encode};
+use crate::data::{BINCODE_CONFIG, BINCODE_CONVERT_FAILED};
+use crate::service::service_types::ServiceType;
+
+/// Message Manager
+/// Provides the ability to store and retrieve messages from a VecDeque
+pub trait MessageManager<In, Out, Key>
+where Key: Eq + Hash {
+    fn borrow_received_list_mut(&mut self) -> &mut HashMap<(ServiceType, Key), VecDeque<In>>;
+
+    fn borrow_send_list_mut(&mut self) -> &mut HashMap<(ServiceType, Key), VecDeque<Out>>;
+
+    fn send(&mut self, message: Out, key: Key, service: ServiceType) {
+        self.borrow_send_list_mut()
+            .entry((service, key))
+            .or_insert_with(VecDeque::new)
+            .push_back(message);
+    }
+
+    fn receive(&mut self, key: Key, service: ServiceType) -> Option<In> {
+        self.borrow_received_list_mut()
+            .entry((service, key))
+            .or_insert_with(VecDeque::new)
+            .pop_front()
+    }
+
+    fn pop_from_send_list(&mut self, key: Key, service: ServiceType) -> Option<Out> {
+        self.borrow_send_list_mut()
+            .entry((service, key))
+            .or_insert_with(VecDeque::new)
+            .pop_front()
+    }
+
+    fn put_into_receive_list(&mut self, message: In, key: Key, service: ServiceType) {
+        self.borrow_received_list_mut()
+            .entry((service, key))
+            .or_insert_with(VecDeque::new)
+            .push_back(message);
+    }
+}
+
+/// Message Encoder
+/// Provides the ability to encode messages into binary data or decode them from binary data
+pub trait MessageEncoder<M: Encode + Decode<()> + Default + Debug> {
+    fn err_result_decode () -> M {
+        M::default()
+    }
+
+    fn err_result_encode () -> Vec<u8> {
+        BINCODE_CONVERT_FAILED
+    }
+
+    fn en(&self) -> Vec<u8> where Self : Encode {
+        bincode::encode_to_vec(self, BINCODE_CONFIG)
+            .unwrap_or_else(|_| Self::err_result_encode())
+    }
+
+    fn de(encoded : Vec<u8>) -> M {
+        match bincode::decode_from_slice(&encoded[..], BINCODE_CONFIG) {
+            Ok((decoded, _)) => decoded,
+            Err(_) => Self::err_result_decode()
+        }
+    }
+}
+\ No newline at end of file