smqp/dist/shared.js

Synchronous message queueing package

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.generateId = generateId;
exports.getRoutingKeyPattern = getRoutingKeyPattern;
exports.sortByPriority = sortByPriority;
const allDots = /\./g;
const allAstx = /\*/g;
const allHashs = /#/g;
function generateId() {
  return Math.random().toString(16).substring(2, 12);
}
function DirectRoutingKeyPattern(pattern) {
  this._match = pattern;
}
DirectRoutingKeyPattern.prototype.test = function test(routingKey) {
  return this._match === routingKey;
};
function EndMatchRoutingKeyPattern(pattern) {
  this._match = pattern.replace('#', '');
}
EndMatchRoutingKeyPattern.prototype.test = function test(routingKey) {
  return !routingKey.indexOf(this._match);
};
function getRoutingKeyPattern(pattern) {
  const len = pattern.length;
  const hashIdx = pattern.indexOf('#');
  const astxIdx = pattern.indexOf('*');
  if (hashIdx === -1) {
    if (astxIdx === -1) {
      return new DirectRoutingKeyPattern(pattern);
    }
  } else if (hashIdx === len - 1 && astxIdx === -1) {
    return new EndMatchRoutingKeyPattern(pattern);
  }
  const rpattern = pattern.replace(allDots, '\\.').replace(allAstx, '[^.]+?').replace(allHashs, '.*?');
  return new RegExp(`^${rpattern}$`);
}
function sortByPriority(a, b) {
  return (b.options.priority || 0) - (a.options.priority || 0);
}