37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
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import Connection from "./Connection";
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export class ConnectionManager {
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constructor() {
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this.connections = new Map();
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}
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refresh(subscriptions, onNotification) {
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console.log(`[ConnectionManager] Refreshing connections`);
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const subscriptionIds = subscriptions.ids();
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const deletedIds = Array.from(this.connections.keys()).filter(id => !subscriptionIds.includes(id));
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// Create and add new connections
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subscriptions.forEach((id, subscription) => {
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const added = !this.connections.get(id)
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if (added) {
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const wsUrl = subscription.wsUrl();
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const connection = new Connection(wsUrl, id, onNotification);
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this.connections.set(id, connection);
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console.log(`[ConnectionManager] Starting new connection ${id} using URL ${wsUrl}`);
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connection.start();
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}
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});
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// Delete old connections
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deletedIds.forEach(id => {
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console.log(`[ConnectionManager] Closing connection ${id}`);
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const connection = this.connections.get(id);
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this.connections.delete(id);
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connection.cancel();
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});
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}
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}
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const connectionManager = new ConnectionManager();
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export default connectionManager;
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