nautilus_execution/order_emulator/
adapter.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2025 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16use std::{
17    cell::{Ref, RefCell, RefMut},
18    rc::Rc,
19};
20
21use nautilus_common::{
22    cache::Cache,
23    clock::Clock,
24    msgbus::{MessageBus, handler::ShareableMessageHandler},
25};
26use nautilus_core::UUID4;
27use ustr::Ustr;
28
29use crate::{
30    messages::{
31        cancel::CancelOrderHandlerAny, modify::ModifyOrderHandlerAny, submit::SubmitOrderHandlerAny,
32    },
33    order_emulator::{
34        emulator::OrderEmulator,
35        handlers::{OrderEmulatorExecuteHandler, OrderEmulatorOnEventHandler},
36    },
37};
38
39pub struct OrderEmulatorAdapter {
40    emulator: Rc<RefCell<OrderEmulator>>,
41}
42
43impl OrderEmulatorAdapter {
44    pub fn new(
45        clock: Rc<RefCell<dyn Clock>>,
46        cache: Rc<RefCell<Cache>>,
47        msgbus: Rc<RefCell<MessageBus>>,
48    ) -> Self {
49        let emulator = Rc::new(RefCell::new(OrderEmulator::new(
50            clock,
51            cache,
52            msgbus.clone(),
53        )));
54
55        Self::initialize_execute_handler(emulator.clone(), msgbus.clone());
56        Self::initialize_on_event_handler(emulator.clone(), msgbus);
57        Self::initialize_submit_order_handler(emulator.clone());
58        Self::initialize_cancel_order_handler(emulator.clone());
59        Self::initialize_modify_order_handler(emulator.clone());
60
61        Self { emulator }
62    }
63
64    fn initialize_submit_order_handler(emulator: Rc<RefCell<OrderEmulator>>) {
65        let handler = SubmitOrderHandlerAny::OrderEmulator(emulator.clone());
66        emulator.borrow_mut().set_submit_order_handler(handler);
67    }
68
69    fn initialize_cancel_order_handler(emulator: Rc<RefCell<OrderEmulator>>) {
70        let handler = CancelOrderHandlerAny::OrderEmulator(emulator.clone());
71        emulator.borrow_mut().set_cancel_order_handler(handler);
72    }
73
74    fn initialize_modify_order_handler(emulator: Rc<RefCell<OrderEmulator>>) {
75        let handler = ModifyOrderHandlerAny::OrderEmulator(emulator.clone());
76        emulator.borrow_mut().set_modify_order_handler(handler);
77    }
78
79    fn initialize_execute_handler(
80        emulator: Rc<RefCell<OrderEmulator>>,
81        msgbus: Rc<RefCell<MessageBus>>,
82    ) {
83        let handler = ShareableMessageHandler(Rc::new(OrderEmulatorExecuteHandler {
84            id: Ustr::from(&UUID4::new().to_string()),
85            emulator,
86        }));
87
88        msgbus
89            .borrow_mut()
90            .register("OrderEmulator.execute", handler);
91    }
92
93    fn initialize_on_event_handler(
94        emulator: Rc<RefCell<OrderEmulator>>,
95        msgbus: Rc<RefCell<MessageBus>>,
96    ) {
97        let handler = ShareableMessageHandler(Rc::new(OrderEmulatorOnEventHandler {
98            id: Ustr::from(&UUID4::new().to_string()),
99            emulator,
100        }));
101
102        msgbus
103            .borrow_mut()
104            .register("OrderEmulator.on_event", handler);
105    }
106
107    #[must_use]
108    pub fn get_emulator(&self) -> Ref<OrderEmulator> {
109        self.emulator.borrow()
110    }
111
112    #[must_use]
113    pub fn get_emulator_mut(&self) -> RefMut<OrderEmulator> {
114        self.emulator.borrow_mut()
115    }
116}
nautilus_execution/order_emulator/adapter.rs

nautilus_execution/order_emulator/
adapter.rs
