Zaid Humaimidi
3169e829e7
The previous approach was simplistic and could result in inefficient queries in certain edge cases, notably causing MongoDB to not utilize existing indexes when querying by last inform timestamps given upper and lower bounds. The new implementation leverages our existing expression minimizer code and can therefore generate more efficient queries or at least queries that can take advantage of existing indexes.
134 lines
3.7 KiB
TypeScript
134 lines
3.7 KiB
TypeScript
/**
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* Copyright 2013-2019 GenieACS Inc.
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*
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* This file is part of GenieACS.
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*
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* GenieACS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* GenieACS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with GenieACS. If not, see <http://www.gnu.org/licenses/>.
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*/
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import { ClosureComponent, Component, VnodeDOM } from "mithril";
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import { m } from "../components";
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import * as taskQueue from "../task-queue";
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import * as store from "../store";
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import { evaluate } from "../../lib/common/expression/util";
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import memoize from "../../lib/common/memoize";
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import timeAgo from "../timeago";
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import { getIcon } from "../icons";
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const evaluateParam = memoize((exp, obj, now: number) => {
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let timestamp = now;
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exp = evaluate(exp, null, now, (e) => {
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if (!Array.isArray(e)) return e;
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for (let i = 1; i < e.length; ++i) {
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if (
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Array.isArray(e[i]) &&
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e[i][0] === "PARAM" &&
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!Array.isArray(e[i][1])
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) {
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let v = null;
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const p = obj[e[i][1]];
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if (p?.value) {
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v = p.value[0];
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timestamp = Math.min(timestamp, p.valueTimestamp);
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}
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e = e.slice();
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e[i] = v;
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}
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}
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if (e[0] === "FUNC" && e[1] === "DATE_STRING" && !Array.isArray(e[2]))
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return new Date(e[2]).toLocaleString();
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return e;
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});
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let parameter = null;
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let value = null;
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if (!Array.isArray(exp)) {
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value = exp;
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} else if (exp[0] === "PARAM") {
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const p = obj[exp[1]];
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if (p?.value) {
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timestamp = p.valueTimestamp;
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value = p.value[0];
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parameter = exp[1];
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if (p.value[1] === "xsd:dateTime" && typeof value === "number")
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value = new Date(value).toLocaleString();
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}
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}
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return { value, timestamp, parameter };
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});
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const component: ClosureComponent = (): Component => {
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return {
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view: (vnode) => {
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const device = vnode.attrs["device"];
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const { value, timestamp, parameter } = evaluateParam(
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vnode.attrs["parameter"],
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device,
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store.getTimestamp() + store.getClockSkew()
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);
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if (value == null) return null;
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let edit;
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if (device[parameter]?.writable) {
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edit = m(
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"button",
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{
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title: "Edit parameter value",
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onclick: () => {
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taskQueue.stageSpv({
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name: "setParameterValues",
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devices: [device["DeviceID.ID"].value[0]],
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parameterValues: [
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[
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parameter,
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device[parameter].value[0],
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device[parameter].value[1],
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],
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],
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});
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},
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},
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getIcon("edit")
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);
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}
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const el = m("long-text", { text: `${value}` });
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return m(
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"span",
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{
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class: "parameter-value",
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onmouseover: (e) => {
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e.redraw = false;
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// Don't update any child element
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if (e.target === (el as VnodeDOM).dom) {
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const now = Date.now() + store.getClockSkew();
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const localeString = new Date(timestamp).toLocaleString();
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e.target.title = `${localeString} (${timeAgo(now - timestamp)})`;
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}
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},
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},
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el,
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edit
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);
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},
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};
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};
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export default component;
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