iqs-services-signals-node/obj/src/persistence/SignalsMemoryPersistence.js

Operational signals microservice in Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
let _ = require('lodash');
const pip_services3_commons_node_1 = require("pip-services3-commons-node");
const pip_services3_data_node_1 = require("pip-services3-data-node");
class SignalsMemoryPersistence extends pip_services3_data_node_1.IdentifiableMemoryPersistence {
    constructor() {
        super();
        this._maxPageSize = 1000;
    }
    composeFilter(filter) {
        filter = filter || new pip_services3_commons_node_1.FilterParams();
        // Todo: Convert to UTC time?
        let now = new Date().getTime();
        let id = filter.getAsNullableString('id');
        let type = filter.getAsNullableString('type');
        let orgId = filter.getAsNullableString('org_id');
        let deviceId = filter.getAsNullableString('device_id');
        let sent = filter.getAsNullableBoolean('sent');
        let locked = filter.getAsNullableBoolean('locked');
        let fromTime = filter.getAsNullableDateTime('from_time');
        let toTime = filter.getAsNullableDateTime('to_time');
        return (item) => {
            if (id && item.id != id)
                return false;
            if (type && item.type != type)
                return false;
            if (orgId && item.org_id != orgId)
                return false;
            if (deviceId && item.device_id != deviceId)
                return false;
            if (fromTime && item.time < fromTime)
                return false;
            if (toTime && item.time >= toTime)
                return false;
            if (sent != null && (item.sent || false) != sent)
                return false;
            if (locked != null && (item.lock_until > now) != locked)
                return false;
            return true;
        };
    }
    getPageByFilter(correlationId, filter, paging, callback) {
        super.getPageByFilter(correlationId, this.composeFilter(filter), paging, null, null, callback);
    }
    lock(correlationId, id, duration, callback) {
        let index = this._items.map((x) => { return x.id; }).indexOf(id);
        if (index < 0) {
            this._logger.trace(correlationId, "Item %s was not found", id);
            callback(null, false);
            return;
        }
        let item = this._items[index];
        let now = new Date().getTime();
        if (item.lock_until > now) {
            this._logger.trace(correlationId, "Item %s was already locked", id);
            callback(null, false);
            return;
        }
        if (item.sent) {
            this._logger.trace(correlationId, "Item %s was processed", id);
            callback(null, false);
            return;
        }
        item.lock_until = now + duration;
        this._items[index] = item;
        this._logger.trace(correlationId, "Locked item %s", id);
        this.save(correlationId, (err) => {
            if (callback)
                callback(err, true);
        });
    }
}
exports.SignalsMemoryPersistence = SignalsMemoryPersistence;
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