All files / redis-smq-monitor-app/src/services queue-time-series.service.ts

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import { QueueTimeSeriesRequestDTO } from '../common/dto/queues/queue-time-series-request.DTO';
import { promisifyAll } from 'bluebird';
import { QueueAcknowledgedTimeSeries } from '../plugins/message-rate/consumer/queue-acknowledged-time-series';
import { QueueDeadLetteredTimeSeries } from '../plugins/message-rate/consumer/queue-dead-lettered-time-series';
import { QueuePublishedTimeSeries } from '../plugins/message-rate/producer/queue-published-time-series';
import { RedisClient } from 'redis-smq-common';
import { TRegistry } from '../registry';
 
export class QueueTimeSeriesService {
  protected static instance: QueueTimeSeriesService | null = null;
  protected redisClient: RedisClient;
 
  protected constructor(redisClient: RedisClient) {
    this.redisClient = redisClient;
  }
 
  async acknowledged(args: QueueTimeSeriesRequestDTO) {
    const { ns, queueName, from, to } = args;
    const timeSeries = promisifyAll(
      QueueAcknowledgedTimeSeries(this.redisClient, {
        name: queueName,
        ns,
      }),
    );
    return timeSeries.getRangeAsync(from, to);
  }
 
  async deadLettered(args: QueueTimeSeriesRequestDTO) {
    const { ns, queueName, from, to } = args;
    const timeSeries = promisifyAll(
      QueueDeadLetteredTimeSeries(this.redisClient, {
        name: queueName,
        ns,
      }),
    );
    return timeSeries.getRangeAsync(from, to);
  }
 
  async published(args: QueueTimeSeriesRequestDTO) {
    const { ns, queueName, from, to } = args;
    const timeSeries = promisifyAll(
      QueuePublishedTimeSeries(this.redisClient, {
        name: queueName,
        ns,
      }),
    );
    return timeSeries.getRangeAsync(from, to);
  }
 
  static async getInstance(registry: TRegistry) {
    if (!QueueTimeSeriesService.instance) {
      const redis = registry.getItem('redis');
      QueueTimeSeriesService.instance = new QueueTimeSeriesService(redis);
    }
    return QueueTimeSeriesService.instance;
  }
}