@hashgraph/solo
Version:
An opinionated CLI tool to deploy and manage private Hedera Networks.
119 lines • 5.37 kB
JavaScript
// SPDX-License-Identifier: Apache-2.0
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { EventEmitter as NodeEventEmitter } from 'node:events';
import { inject, injectable } from 'tsyringe-neo';
import { InjectTokens } from '../dependency-injection/inject-tokens.js';
import { patchInject } from '../dependency-injection/container-helper.js';
import { Duration } from '../time/duration.js';
import { SoloError } from '../errors/solo-error.js';
let DefaultSoloEventBus = class DefaultSoloEventBus {
logger;
emitter = new NodeEventEmitter();
// Keep an in-memory log of all emitted events, grouped by event type.
history = new Map();
constructor(logger) {
this.logger = logger;
this.logger = patchInject(logger, InjectTokens.SoloLogger, this.constructor.name);
}
emit(event) {
// Record event in history so callers can query or have waitFor resolve
// even if the event was emitted before they started listening.
let list = this.history.get(event.type);
if (!list) {
list = [];
this.history.set(event.type, list);
}
list.push(event);
// Log the event for debugging/inspection. Use debug level to avoid
// cluttering normal output, but this can be changed if needed.
this.logger.debug(`DefaultSoloEventBus.emit: type=${String(event.type)}`, event);
this.emitter.emit(event.type, event);
}
on(type, handler) {
this.emitter.on(type, handler);
}
off(type, handler) {
this.emitter.off(type, handler);
}
clearHistory(type) {
if (type === undefined) {
this.history.clear();
}
else {
this.history.delete(type);
}
}
async waitFor(type, predicate, timeout = Duration.ofSeconds(60)) {
return new Promise((resolve, reject) => {
const timer = setTimeout(() => {
this.emitter.off(type, handler);
reject(new SoloError(`waitFor timed out after ${timeout.toMillis()}ms waiting for event type: ${String(type)}`));
}, timeout.toMillis());
// Ensure we only resolve once if handler and history check race.
let settled = false;
// Register handler first to avoid missing events that arrive while
// we're checking the history.
const handler = (event) => {
try {
if (!predicate || predicate(event)) {
if (settled) {
return;
}
settled = true;
clearTimeout(timer);
this.emitter.off(type, handler);
resolve(event);
}
}
catch (error) {
clearTimeout(timer);
this.emitter.off(type, handler);
reject(new SoloError(`Error in waitFor handler predicate for event type: ${String(type)}`, error));
}
};
this.emitter.on(type, handler);
// Then check the history for already-emitted events (newest first).
const events = this.history.get(type);
if (events) {
for (let index = events.length - 1; index >= 0; index--) {
const candidate = events[index];
try {
if (!predicate || predicate(candidate)) {
if (settled) {
return;
}
settled = true;
clearTimeout(timer);
this.emitter.off(type, handler);
resolve(candidate);
return;
}
}
catch (error) {
clearTimeout(timer);
this.emitter.off(type, handler);
reject(new SoloError(`Error in waitFor history check predicate for event type: ${String(type)}`, error));
}
}
}
});
}
};
DefaultSoloEventBus = __decorate([
injectable(),
__param(0, inject(InjectTokens.SoloLogger)),
__metadata("design:paramtypes", [Object])
], DefaultSoloEventBus);
export { DefaultSoloEventBus };
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