Mohammed Naser | 3415a2a | 2025-03-06 21:16:12 -0500 | [diff] [blame] | 1 | use jsonrpsee::core::client::{Subscription, SubscriptionClientT}; |
| 2 | use ovsdb_client::{ |
| 3 | rpc::{self, RpcClient}, |
| 4 | schema::{MonitorRequest, UpdateNotification}, |
| 5 | }; |
| 6 | use std::collections::HashMap; |
| 7 | use tracing::Level; |
| 8 | use tracing_subscriber::FmtSubscriber; |
| 9 | |
| 10 | #[tokio::main] |
| 11 | async fn main() -> Result<(), Box<dyn std::error::Error>> { |
| 12 | let subscriber = FmtSubscriber::builder() |
| 13 | .with_max_level(Level::TRACE) |
| 14 | .finish(); |
| 15 | tracing::subscriber::set_global_default(subscriber)?; |
| 16 | |
| 17 | let socket_addr = "127.0.0.1:6641"; |
| 18 | let database = "OVN_Northbound"; |
| 19 | let table = "NB_Global"; |
| 20 | |
| 21 | let client = rpc::connect_tcp(socket_addr).await?; |
| 22 | |
| 23 | // // 4.1.1. List Databases |
| 24 | let _databases = client.list_databases().await?; |
| 25 | |
| 26 | // // 4.1.2. Get Schema |
| 27 | let schema = client.get_schema(database).await?; |
| 28 | let columns = schema |
| 29 | .tables |
| 30 | .get(table) |
| 31 | .expect("table not found") |
| 32 | .columns |
| 33 | .keys() |
| 34 | .cloned() |
| 35 | .collect::<Vec<_>>(); |
| 36 | |
| 37 | let mut requests = HashMap::new(); |
| 38 | requests.insert( |
| 39 | table.to_owned(), |
| 40 | MonitorRequest { |
| 41 | columns: Some(columns), |
| 42 | ..Default::default() |
| 43 | }, |
| 44 | ); |
| 45 | |
| 46 | let initial = client.monitor("OVN_Northbound", None, requests).await?; |
| 47 | println!("Initial state: {:?}", initial); |
| 48 | |
| 49 | let mut stream: Subscription<UpdateNotification<serde_json::Value>> = client.subscribe_to_method("update").await?; |
| 50 | |
| 51 | while let Some(update) = stream.next().await { |
| 52 | match update { |
| 53 | Ok(update) => println!("Received update: {:?}", update), |
| 54 | Err(e) => eprintln!("Error receiving update: {:?}", e), |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | Ok(()) |
| 59 | } |