Когда полицейский пёс по кличке Тайсон внезапно замер в переполненном автобусе, никто не понимал почему — пока его пронзительный взгляд не устремился на девочку сзади

В странном, словно сонном мире, где вещи не всегда такие, какими кажутся, произошла история, потрясшая всех. В переполненном автобусе 47, который неторопливо петлял по тихим улицам спального района, немецкая# Distributed System — Project 1
## Project Overview
This project is a simple distributed system that simulates a network of nodes communicating with each other. The system is designed to handle message passing between nodes, with each node maintaining a log of messages it has sent and received.
## Functionality
— **Node Communication**: Nodes can send and receive messages to and from each other.
— **Message Logging**: Each node keeps a log of sent and received messages.
— **System Simulation**: The system can simulate message passing between nodes with configurable delays.
## Implementation Details
### Components
1. **Node**: Represents a single entity in the network. Each node has:
— A unique identifier (ID).
— A list of neighbors (other nodes it can communicate with).
— Logs for sent and received messages.
— Methods to send and receive messages.
2. **System**: Manages the collection of nodes and simulates their interactions. It:
— Initializes nodes and their connections.
— Simulates message passing between nodes.
— Provides methods to retrieve and display node logs.
### Key Methods
— **sendMessage(fromNodeId, toNodeId, message)**: Sends a message from one node to another.
— **simulate()**: Simulates the message passing process between nodes.
— **getNodeLogs(nodeId)**: Retrieves the logs of a specific node.
### Data Structures
— **Nodes**: Stored in a dictionary with node IDs as keys.
— **Message Logs**: Each node maintains separate lists for sent and received messages.
## Usage
1. **Initialize the System**: Create an instance of the `System` class.
2. **Add Nodes**: Use `add_node(node_id)` to add nodes to the system.
3. **Add Connections**: Use `add_connection(from_node_id, to_node_id)` to establish connections between nodes.
4. **Send Messages**: Use `send_message(from_node_id, to_node_id, message)` to send messages between nodes.
5. **Simulate**: Call `simulate()` to run the simulation.
6. **View Logs**: Use `get_node_logs(node_id)` to view the logs of a specific node.
## Example
«`python
system = System()
system.add_node(1)
system.add_node(2)
system.add_connection(1, 2)
system.send_message(1, 2, «Hello»)
system.simulate()
logs = system.get_node_logs(1)
print(logs)
«`
## Future Enhancements
— **Dynamic Node Addition/Removal**: Allow nodes to join and leave the network dynamically.
— **Fault Tolerance**: Implement mechanisms to handle node failures.
— **Advanced Routing**: Introduce more sophisticated message routing algorithms.
— **Security**: Add encryption and authentication for messages.
## Conclusion
This project provides a foundational understanding of distributed systems, focusing on node communication and message logging. It can be extended to include more complex features and protocols commonly found in distributed systems.